Saturday 28 January 2017

10 Steps to Systematizing Your Business for Success

10 Steps to Systematizing
Your Business for Success

by Troy Hillard
Director 
Wash Rite Limited
Most errors made within any business large or small are not caused by staff not taking there job seriously or intentionally damaging product it's cause by those staff not having a clear and defined policy and procedure on how to carry out that task there required to do.. Here are 10 steps i believe will help you to create policy's, procedures and systems that will ensure your business more successful in the future.
Clarity is one of the key point's in effective business structure design, along with people and industry specific technology. Yet with the haphazard process management common in many businesses, it is little wonder that employees struggle to do a good job. So, although mapping your business processes is relatively simple to do and involves no financial outlay, it pays huge dividends in business efficiency and employee commitment. If you are thinking about systematizing your business, here are ten key pointers to keep in mind.
I see many businesses, both large and small, continue to communicate sections of important policies and processes to employees through one-time emails and the like. This could include a new purchase authorization policy or a new data entry procedure. Expecting employees to forage through past emails and other transitory type documents only leads to wasted time and exasperation.
1. Involve employees who actually do the work in the mapping
Employees who do the actual work are in the best position to know the detailed steps in each process. They are also most familiar with the common roadblocks and bottlenecks and the key contacts in the organization to get things done. Involve your employees up front by inviting them to join process-mapping teams. Keep managers and supervisors out of the process-mapping sessions, as they have a tendency to dominate the sessions with their own "expertise."
2. Identify process start and end activities
For each process, clearly identify the start and end. If the team neglects this important step at the start of each mapping session, in the team's enthusiasm, extra activities will quickly creep into the picture until the process becomes unmanageable. Think of one activity that triggers the process, such as an invoice appearing in an in tray. This is the start. Then think of the last activity performed. It may be, for example, posting an item to the General Ledger.
3. Identify process objective and inputs and outputs
This is where work starts to take on new meaning for employees. The team leader should ask employees why each process is performed and what are the expected results of each process. Not only does this help to focus attention on removing non-value add activities, but it also gives employees a sense of purpose in their working life.
Asking the teams to identify the inputs to the process and the expected outputs will serve to clarify what the process needs before it can begin and what customers of the next process will get before they can begin. For example, agreeing that widget assembly cannot begin until the joining screws are supplied will eliminate a lot of idle work in progress.
4. Identify Customer and Supplier requirements
Next, each team needs to work out who the suppliers and customers of the process are. This step is critical as it identifies who the team needs to work with collaboratively to maximize business results. If a process does not have a customer, then eliminate it as it has no useful purpose. Every employee working in a process should serve either an internal customer or an external customer or both. Each team should then ask of their customers what it is they want from the process, in terms of quality, turn around time, and so on. For example, the internal customers of the purchasing team may require orders to be fulfilled within two days unless placed on back order.
Conversely, the team needs to clarify what it is they need of their suppliers, both internal and external, to perform their process effectively and efficiently. A purchasing team may require other departments, for example, to fill in all fields of the Purchase Order prior to submission.
5. Identify a Process Owner for each process
For each process, specify one Process Owner. Identifying one person who is responsible for the process end to end is critical to ensuring process efficiency. Where processes flow through departments, as all major processes do, the Process Owner will need to have sufficient authority and credibility to make decisions spanning these departments. There is no more effective way that I know to dismantle quickly and effectively the silo walls that get built separating departments.
6. Manage the level of detail
The magic of process maps lay in their seemingly simple visual presentation of complex ideas. One picture can tell a thousand words. Each process map should take up no more than one page, with its definition taking up just one other. If a map takes up more than one page, identify sub-processes within each process and show each sub-process on a separate page. Use clear referencing to link each sub-process with its associated macro process. I have seen process maps that flow on page after page after page. These do little more than confuse employees.
Do not try to document everything that goes on in your organization. Decide on the priority processes and concentrate on these. Processes from which you can gain quick wins are those that interface with external customers and suppliers and those that are currently providing you with your biggest headaches.
7. Use standardized mapping conventions
What you want is for anyone in the organization to be able to pick up a process map and understand instantly what it is they are seeing.
Standardize on mapping conventions and formatting of the maps. Mapping symbols, flow direction, page layout, fonts, titling and so on, should be the same from one map to another. Keep the number of flow chart symbols to a minimum. You should need no more than six to keep the maps easy to read.
8. Get agreement on the process
The most beautifully documented process will mean naught if there is little commitment from the major actors to follow them. Crunch time will come in those tough times of impending deadlines and snappy stakeholders.
I find what works well is getting formal sign-off from the process-mapping team leader, the Process Owner and the managers of the interfacing processes (both supplier and customer). This may seem overkill and you may get some resistance, however, getting formal agreement now will save you much heartache later when people start to come up with excuses as to why the seemingly agreed process does not apply in this or that case.
9. Document the process
The most important thing that team leaders can do after the team agrees on the process definition and steps is to write it down. What works well is brainstorming all the process activities first, writing each process step on a Post-it note and then having a team member place the Post-it notes in order on flip chart paper. The next hour or so is then devoted to arguing about the activities and order of steps. Post-it notes can easily be moved around during this debating process. Only when there is full agreement are the lines and arrows drawn in to signify the process flows. Get the process formally drawn up and make sure that they are made easily accessible to all who need them. Fix them to operator machines, post them on the corporate intranet or place them in a loose-leaf binder on each officer's desk. Put them where people do their work and make sure that they are accurate, concise and easily understandable.
10. Convey management commitment and train your teams
Although mapping business processes will not cost you much in capital expenditure, it does require concerted effort. Get the management team to show visible support and commitment to the project. Activities here include holding regular project progress meetings and rewarding the most productive teams. Teams will loose faith and energy quickly if management support is seen as piecemeal or being given grudgingly. Team leaders will need to be able to organize effectively and manage their time, along with possessing the necessary interpersonal and analytical thinking skills.
Each team will also need a mix of abilities; people who can think creatively, bond the team and follow through on tasks, to name just a few.
Where these skills are lacking, they will need to be learned. Do not skimp on training the teams and their team leaders. This is a very wise commitment, as such teams have proved to be a fertile ground for developing the next line of leaders.
Use as a basis for further improvement
The primary objective of mapping business processes is to form a common understanding from which process improvements can be achieved. If this is the first time that your organization is setting out to map its processes, be ready to receive a bonus. The initial act of defining processes brings new clarity of roles, objectives and activities. For every team that I have worked with, this new shared understanding has uncovered many areas for improvement during the initial mapping process.
Once your teams have completed mapping their key processes, turn them into continuous improvement teams. Not only do the documented maps serve as the agreed baseline for ongoing process improvement, they also make for excellent induction and training resources. Now sit back and watch your business soar.
I hope this information helps you build your business as it has helped me build my business Wash Rite House Washing.

Tuesday 24 January 2017

6 Surprising Tips To Clean Concrete


6 Surprising Tips To Clean Concrete

Summer in New Zealand means BBQs, swimming, and outdoor activities. And, with the kids not in school than the kids will be spending most of their days outside playing, running, and having a good time. Whether it is a BBQ, swimming, sidewalk chalk drawing, or some other activity, a surprising number of summer activities revolve around concreted areas. Here are 6 somewhat surprising household items you can use to keep your cement clean and safe for you, your kids, and any guests you may have for those fun summertime activities.

  • Ammonia: effective at cleaning discoloration from your concrete. Mix 1 cup of ammonia with 3 liters of water and scrub the discolored concrete. Hose the cement down when you’re done.
  • Diet Coke: Surprised? Well, don’t be Diet coke is actually really great at removing rust stains from cement. Use coke zero with hot water and scrub the rust stained concrete areas.
  • Oven-Cleaner: Spray those spots of oil, grease, and transmission fluid with oven cleaner and let stand for 10 minutes. Scrub with a stiff brush and then hose of. For extra tough stains try multiple applications on your concrete.
  • Pepsi: Oils stains can be vanquished from cement with some cola. Here’s what you’ll need. Cat litter, cola, stiff bristled broom, a bucket, laundry detergent, bleach, and protection for your hands and eyes.
  • WD-40: Great for removing oil stains from concrete. Simply spray the area with the stuff and hose it down with water.
  • Baking Soda: Okay so this article is mostly about cleaning your concrete this Summer to keep your cement patios, driveways, walkways, and poolside areas clean and safe. However, to keep your concrete truly safe, it starts long before the Summer. In the cold New Zealand South Island winters, try using baking soda to melt ice on your concrete and cement walkways, patios, and driveways. It is less abrasive and harmful to your concrete.
  • Troy Hillard
  • Wash Rite House Washing
  • www.washrite.co.nz

Monday 23 January 2017

Wash Rite's Tips For Removing Stains From Exterior Cladding

Wash Rite's tips for removing stains from exterior cladding



keeping your home in great condition requires regular maintenance. This is especially true when it comes to your house's exterior cladding. Stains and mark's occur when dirt or other contaminants come into contact with the house during high wind, or when large bodies of water run down a particular wall. The more exposed a wall is to the elements, the more exterior cladding stains are likely to occur. Stains can also be common in areas where homes are located near factories, quarries, or production facilities or busy road's.
In this article Wash Rite offer's some home maintenance tips on removing exterior cladding stains , depending on the type of cladding your home has:

REMOVING STAINS FROM BRICK

Brick and block exteriors are common across New Zealand. Brick and Block is considered a “low maintenance” option for cladding, as it doesn’t usually require repainting, like weatherboards. But brick does attract stains, and you have to be careful when cleaning it. Many brick surfaces can be easily damaged by harsh cleaning methods.
Stains can be removed by scrubbing with a solution of warm water and dish washing liquid. muriatic acid and Naphtha soap can also work well, and for certain stains ammonia will work, too. Refer to your brick manufacturer’s care instructions for the best products to use.

REMOVING STAINS FROM FIBRE CEMENT

Fibre cement is another common cladding method in New Zealand. These boards are porous, so they retain water and can be susceptible to the growth of algae, moss, mould, and lichen, all of which can produce staining.
To clean, most people use a detergent nozzle on their hose. Look for mild detergents that won’t damage your product or run off into your garden. This will remove most dust, mud, salt, bird, and insect droppings. You can also purchase specialised products for removing and protecting against mould and algae. A simple and easy method is to mix a 10% house hold bleach to water mix up and use that to wash down the walls, Ensure you rinse the soap off the house after washing.

REMOVING STAINS FROM CEDAR AND OTHER WOOD WEATHERBOARDS

Many homes utilize untreated cedar or other wood weatherboards. Wood contains tannins, which will be brought to the surface as untreated timber is frequently exposed to rain. This will cause brown stains on the wood surface, and may also affect brick, concrete or painted wooden surfaces that abut against the cedar.
Tannin stains can be easily removed with warm water, although on harder surfaces like brick they may require vigorous rubbing with soapy water. Don’t use an abrasive cloth, or you may ruin the finish on your weatherboards.
Staining or painting weatherboards will dramatically decrease the instances of tannin stains.
Wood weatherboards are also prone to iron staining where they come into contact with steel or iron (such as nails, strapping, roof or window frames.) These blue-black stains are tough to remove. Prevention is the best cure – by ensuring timber that’s continuously wet with runoff from an iron surface is treated with a stain-resistant finish. Diluted household bleach or oxalic acid (2% solution) can work to remove iron stains on some woods. Otherwise, stains can usually be sanded out.

REMOVING STAINS FROM UPVC WEATHERBOARDS

uPVC weatherboards are extremely low maintenance. A wet cloth and warm soapy water will remove most stains. Hydro-chlorite or chlorine-based cleaners can also be use. DO NOT use solvents or abrasive cleaners on uPVC weatherboards – they can strip away the protective coatings on the product.
For more information on maintaining and cleaning your homes exterior contact Wash Rite House Wash  on 0800101216 or visit www.washrite.co.nz and we will be happy to help .

Saturday 21 January 2017

BUILD A SMALL SERVICE BUSINESS: 7 Cash Flow Management Tips for Small Business Own...

BUILD A SMALL SERVICE BUSINESS: 7 Cash Flow Management Tips for Small Business Own...: 7 Cash Flow Management Tips for Small Business Owners Small business owners contend with a host of problems every day big and sma...

10 Roof Maintenance Tips from Wash Rite

Wash Rite www.washrite.co.nz

10 Roof Maintenance Tips That Save Money and Unnecessary Headaches

Installing a new roof can be expensive and it’s usually a major disruption for most Homeowners. That’s why inexpensive inspections and maintenance on a regular basis make perfect sense. A well designed roof maintenance program will keep your roof functioning properly, keep your warranties intact, and ensure that you get the maximum useful life from your roof.

  1. Inspect the roof on a regular basis: Inspections are designed to find minor issues before they become major issues. You should schedule inspections before or after seasonal changes and after major storms. A proper inspection will always include looking in the attic for leaks.
  2. Keep your roof free and clear of debris: minor debris such as leaves, small limbs, and sticks can damage your roof, prevent proper drainage, encourage algae & moss growth, and encourage wood rot.
  3. Inspect / repair seals, joints, and flashing: These are the most frequent spots for leaks and should be regularly inspected for damage. Flashing covers entry points into your roof including the vents, exhaust pipe, and chimney, and it’s often a hotspot for leaks. Look for rust, cracks, and dried out or loose sealant.
  4. Repair problems quickly: Roof problems don’t go away, they just get worse with time and more expensive to fix.
  5. Keep your gutters clear: Gutters are a critical, but often overlooked, part of your roofing system. They allow for the proper drainage that’s necessary for the roof to function properly. When gutters back up, serious water damage and ice damming can occur.
  6. Trim trees away from the roof: Tree limbs hanging down over your roof, or even on it can be a serious hazard. Not only do they put you at risk for broken limbs falling on the roof, they can wear down and damage shingles. Tree limbs can also encourage squirrels and raccoons to gain access to your home. Keep in mind that they may be closer to your home than you think: tree limbs are often flexible and can swing several feet during a storm.
  7. Look for signs of animal and insect damage: Rodents, birds, bats, and bees can cause serious damage to your roof if they decide to make it their home. Inspecting for intrusions can prevent major damage and/or infestations.
  8. If you live in area that experience it, clear heavy snow in winter as quickly as possible: Heavy winter snow accumulation can cause a roof collapse. If your roof is not shedding snow quickly enough, hire a professional to remove it. In New Zealand even though in some area's we receive winter snow falls in general our roof's are not engineered to hold heavy snow falls for a long period of time.
  9. Avoid harsh cleaning methods: Roofs throughout New Zealand experience discoloration due to algae growth. And while a clean roof looks MUCH better than a stained roof, harsh cleaning methods or repeated cleaning often do more harm than good. NEVER allow high-pressure to be used on your roof. Roof Cleaning should always be done by a trained professional and should always be done in conjunction with a proper roof inspection.
  10. Document your repairs and maintenance: This will help you keep track of your expenses as well as provide you with the proper documentation you may need in the case of a warranty or insurance claim.

With proper maintenance, you can maximize the life of your roof while minimizing the overall cost. This will allow you to save money and avoid unexpected emergencies while keeping your home and family protected.

For best results, consider our very affordable Roof Inspection and Moss and Mould treatment program. Our employee's are trained to address all of these items and more. And we’re certified to offer the best warranties in the business.

For more information about keeping your roof looking it best contact us for a chat about your roof or to arrange a free quote.

Wash Rite
PH: 080010126

Top 5 Reasons to Power Wash Your Home

Top 5 Reasons to Low Pressure Wash Your Home


Why should you Low pressure wash your home?

Those of us that live in New Zealand know what it’s like to deal with crummy weather. It gets really hot, really cold, really wet and then really dry. The weather is unpredictable! Washing your home is the best way to get rid of mould, mildew and stains on your home’s brick/wood patio or your house's exterior walls. Take the first step to protecting your home by getting a free power washing estimate from Wash Rite House Washing today!

Wash Away Mold and Mildew.
  1. Washing Saves Money: First and foremost,  washing is smart preventative maintenance, like gutter cleaning, for all exterior surfaces and can prevent costly repairs to your property. Furthermore, power washing is one of the least expensive cleaning tools or large surfaces such as your home’s exterior.
  2. Washing Prevents Permanent Damage: Winter grime can cause serious damage and stains to your home and exterior surfaces if not properly taken care of and removed in the spring. Letting stain and grime sit on your home or office for very long periods can result in permanent damage.Washing can remove this grime quickly and easily with little impact on the environment, when compared with traditional cleaning solutions.
  3. Low Pressure Washing Saves Time: Compared to regular cleaning methods, using a low pressure washing service saves valuable time. No mixing cleaning solutions, no climbing ladders, no strenuous activity, no endless scrubbing. Hand washing does not have the same power, and it could take hours to get a fraction of the results. When you choose to wash, the filth and grime that has attached to your outdoor surfaces throughout the winter will be cleaned away with little effort.
  4. Washing Removes Allergens: With the arrival of spring in New Zealand, allergen levels begin to elevate. Homeowners can reduce the level of allergens in and around their home by washing the exterior of their home. This will help lower the allergen levels and can help you and your family live a bit more peacefully this spring without coughing, sneezing and watery eyes.
  5. Washing Prepares Surfaces: New Zealand winters can be long and cold, and many homeowners use spring-cleaning as the perfect time to tackle that do-it-yourself project that’s been put off throughout the winter. Low pressure washing is the perfect way to prepare surfaces for paint or refinishing. Whether you’re thinking about re-staining your deck, painting your home, or refinishing your pool, Low pressure washing will prepare the surface better than any other cleaning process or solution.
When you’re ready to explore the many benefits that come from adding a low pressure washing into your spring-cleaning routine, our team at Wash Rite  is standing by to assist you. Connect with us today to discuss your specific project and to receive your free, comprehensive quote. We look forward to hearing from you and to helping you with all your low pressure washing needs. Contact us today to get started!

Wednesday 18 January 2017

Why is Gutter Cleaning So Important?

A debris-clogged gutter can cause a leaky roof or water damage to the interior or exterior of your home.
Gutters are an integral piece of your home’s well being. They serve to control the flow of rainwater to protect your roof, walls, foundation and landscape.
But when neglected, experts say gutters can turn from a necessity to a nightmare. A gutter clogged with leaves, sticks and other debris can cause a leaky roof or water damage to the interior or exterior of your home. Contractors say gunked-up gutters also make nice homes for pests, rodents, mold and honeycombs from bee infestations.
“If you let gutter cleaning go by the wayside, it can cost you hundreds or thousands of dollars," says Troy Hillard, a Director with Wash Rite in Hamilton New Zealand.
“Gutters are a potential bomb above your head full of insects and critters, if you let them stay out of sight, out of mind,” Hillard added.

How often should they be cleaned?

It depends largely on where you live and, most importantly, how many trees are in your yard. Tim Beale, owner of Wash Rite Wellington Frachise in Wellington New Zealand recommends having gutters maintained in the spring and Autumn.
“I recommend people calling me in the Autumn when all of their leaves are down or almost down, Beale says. “In the springtime, maple trees get those little helicopters that go everywhere, including into your gutter.”
gutter cleaning waikato
Hillard says it’s important to have a professional clean the downspouts as well because a clogged downspout "makes it hard for the rain to go down and that causes them to back up and overflow the gutter, which can cause damage to your home.”
You can judge how often to clean your gutters based on how often leaves in your area fall and the types of leaves, Hillard says.
“It should be on everyone’s to-do list about every four months, depending on the tree climate,” he says. “In a high-yield environment, leaves fall all year-round. You can’t wait until the last leaf falls.”
Cleaning your gutters of leaves and other debris once or twice a year will protect your home from water damage.

Gutter covers reduce debris

Leaf guards significantly decrease the need for gutter maintenance, but they don’t eliminate the need completely, Hillard says.
Instead of every four to six months, you may only need to maintenance gutters with covers or screens every one to two years. The frequency of maintenance will depend on the quality of the cover and the type and quantity of trees in the yard, he says.
Even if you do have gutter covers, it's still a good idea to do a visual check each year, says Troy Hillard, owner of Wash Rite  in Hamilton New Zealand
Hillard says a guard will not keep all the debris out, adding: “Up to 15 to 20 percent can still get in, and you still have to remove the guard. Sometimes you need a professional to do so.”
It’s important to purchase quality covers and screens if you want to effectively limit the need for gutter maintenance, says John Burns, Manager of Wash Rite Hamilton in Hamilton.
“You need to look for one that’s strong enough to hold up and suits your type of trees,” he says.
A gutter cover costs on average between $1,500 to $2,500 depending on the size of the home and length of gutters, John says.

Do the job yourself or hire?

Although cleaning gutters is a task most homeowners can do themselves, it can be dangerous work. According to the Accident compensation corporation , falls from ladders sent more than 24,000 New Zealanders to hospital emergency rooms in 2015 (the most recent year available).
Before climbing a ladder, be sure it's sturdy and all the steps are in good condition. Climb the first two steps to determine if the ground is level. For soft soil, place plywood under the legs of the ladder. You should also make sure not to rest the ladder on the gutters themselves because the additional weight can cause them to collapse.
“I had a customer once that smashed both hips from falling off a ladder and received permanent injuries from it,” Hillard says. “That's one of the biggest things; safety. The second thing is a professional knows what they're looking at and can stop the problem before it gets worse. Gutter prevention is measured in pennies, and repairs are measured in dollars.”
During a cleaning, a professional should remove of all debris from the roof, gutters and downspouts, while checking and repairing any loose gutter spikes. The cost of gutter cleaning ranges from $75 to $225 for an average home, depending on the length of gutters, height of the home and scope of work. Most companies charge a flat fee, but the cost can go up depending on the complexity of the work.
Before hiring someone to clean your gutters, check that they carry liability insurance.

Saturday 14 January 2017

Benefits of Pressure Washing Your Driveway

Benefits of Pressure Washing Your Driveway

House washing services are beneficial for more than just keeping the exterior of your home clean. They’re also a great way to keep your driveway free of rust, oil and grime, which can accumulate from cars and traffic.
Not sure driveway pressure washing is right for you? Here’s why you should:

Why Pressure Wash Your Driveway?

Pressure washing your driveway is the easiest and quickest way to remove the stains. It’s also one of the easiest ways to add both curb appeal and value to your home. According to the Real estate institute of new Zealand, professional washing (for the home and driveway) can add anywhere from $10,000 to $15,000 to the value of your home, making pressure washing one of the most cost-effective and time-efficient cleaning techniques for your driveway.

How it works

Driveway pressure washing is no ordinary pressure washing service. It uses a combination of eco-friendly cleaners, low-pressure washing techniques and experience to effectively rid concrete surfaces of tough stains.
Surfaces are first pre-treated with a concrete brightener, and then a concrete surface cleaner to break up the surface stains and give the driveway a stripe/streak free appearance. After rinsing the uplifted debris, a special eco-friendly cleaner is used to work out the tough stains, like oil and rust.
house washing hamilton wash rite
There are other services, such as a concrete sealing service, that can be applied after the eco-friendly specialty cleaner to protect your driveway from stubborn stains and make the surface look clean much longer.
If you require any information Wash Rite New Zealand offer free information sessions, please contact them on 0800101216

Why Choose Low-Pressure House Washing

The Benefits of Low-Pressure House Washing

House Washing  is one of the easiest ways homeowners can increase their home’s curb appeal. Not only does it make your home look sparkly clean, but also protects your family and is considered preventative home maintenance.
However, not all House Washing  techniques are the same. There are two methods: high pressure washing and low-pressure washing.
High pressure washing uses hard water pressure, while low pressure washing uses a mixture of soft water pressure and chemicals to rid the home of dirt and grime.
house washing and moss and mould roof treatments
Wash Rite House Washing New Zealand
Low-pressure house washing provides a variety of benefits to homeowners, including:
  • Extends the life of paint: Painted surfaces, such as your home, can suffer damage from high pressure washing techniques. Paint can chip or become dull when too much pressure is used during the house washing process. By using low-pressure washing, you will extend the life your exterior house paint and bring back the luster of your painted finish.
  • Prevents damage to siding: High pressure washing can cause gouge marks, dents or even holes in your siding. In some cases, the siding can become unattached from the home if the pressure is too much. High pressure washing on aluminum siding can cause streaks and wand marks, leaving homes and building unprofessional looking.
  • Kills mold, mildew, and algae: High pressure washing only uses the water pressure to remove the mold, mildew and algae, which doesn’t prevent it from coming back. Low-pressure washing uses environmentally safe chemicals to ensure that the buildup is effectively removed from the home.














Before hiring a House Washing company to clean your home, make sure you ask if they offer low-pressure house washing! Or you can call the experts for free advise - Wash Rite  0800101216

Sunday 1 January 2017

How to clean weatherboard siding on your house




Think your wood siding needs a fresh coat of paint? Maybe. Or it could be that your wood weatherboards simply needs a thorough cleaning. Homeowners have always prized wood for its unparalleled appearance, but like any siding material, it requires periodic maintenance. With wood in particular, the challenge is to avoid doing more harm than good. For instance, you might be tempted to clean weatherboards with a broom and scrubbing brush, thinking it would make quick work of things. Do so at your own risk. Using such a harsh abrasive tool can actually cause several types of damage, including stripped paint, gouged boards, and loosened caulk, besides, if you really want to give new life to your wood siding, it’s likely that water alone won’t do the trick—you’ll need a good soap to remove the dirt and kill the moss,mould and mildew on the weatherboards. 

If you are not familiar with the use of soaps and chemicals i would recommend hiring a professional house washing contractor. "Mr Troy Hillard from Wash Rite in New Zealand said in most cases most houses can be washed for under $300 so its worth while talking to a local house washing contractor if your unsure what soaps to use".

STEP 1 
MATERIALS AND TOOLS

- Low Pressure High Volume Pressure washer
- Garden Hose
- House wash soaps
- Ladder
Shut all the windows. As you go about your preparations, keep an eye out for mold. Dirt can be unsightly, but mold can be truly problematic. Left unchecked, it often causes wood rot, particularly in wet, humid climates. Note any location where you discover mold, so you return to and concentrate on those spots later in the cleaning process.
STEP 2
Apply the house wash soaps through the chemical injection value in your Low pressure high volume pressure washer, Apply the soap from the bottom of the house and work your way upwards, Mr Hillard from Wash Rite recommends washing small sections of the house at a time as you don't want the soap to dry on the house. Let the soap dwell for 10 minutes and keep on apply light layers of soap just so the soap does not dry on the house in that 10 minute period.
STEP 3
Rinse of the house starting at the highest point and working your way down to the ground level, This will ensure no soap is left on the house.
Take extra time to rinse of the windows to prevent soap drying on the windows and leveling residue marks on the glass.

STEP 4
Finish up by walking around the house and making sure all sections of the house are clean, If there are any stubborn bits you may have to go back and do step 2 and 3 again on that section.