At Water Pro Exterior Cleaning, we want to help you protect your most valuable asset, your home.

Water Pro Exterior Cleaning offers experienced professional power washing and soft washing in the Greater Waukesha area. Whether you’re in need of roof washing, siding, concrete, or deck cleaning…

we’re ready to serve you.

Siding Cleaning

Water Pro Exterior Cleaning - Power Wash Siding

Over time, the exterior of your home can become dull and dirty due to the accumulation of dust, dirt, pollen, and grime. Having your siding professionally cleaned can help…

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Roof Cleaning


Black streaks running down your shingles may not mean you need to replace your roof, you may only need of a proper roof cleaning. Usually seen in partially shaded areas…

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Concrete Cleaning


Concrete is extremely durable, making it one of the most widely used construction materials in the world. Concrete is also easy to clean and fairly resistant to staining…

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Deck Cleaning


Most home maintenance professionals recommend a proper deck washing once a year. The best time to clean it is in the spring or early summer. That way…

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Thanks for your interest in Water Pro Exterior Cleaning.

When you schedule a consultation with us, we’ll meet with you on-site to deliver a solution to your specific cleaning needs.


What is soft washing and how does it clean my house?

Soft washing uses special nozzles on the end of a trigger gun or lance to lower the pressure of the water and when combined with the appropriate chemicals is capable of removing dirt and organic materials such as mold, algae, lichens and moss.

Is soft washing safe?

Yes. Soft washing is much safer than using a regular pressure washer as it does not force water up under the siding and will not damage windows or screens.

Why should I have the exterior of my house washed?

Over time, your siding accumulates dirt just like any surface will. Along with this dirt, there are spores and fungus floating in the air. These spores and fungi like cool and moist locations to grow. The shady sides of your home provide a perfect growing medium for these organic materials. It does not matter if your siding is wood, vinyl, cement board, aluminum, stucco or EIFS (Exterior insulation and finish system). These organics latch on to the siding and with time and moisture, they grow. Organic materials like algae and lichens are unsightly and take away from the curb appeal of your home.

What chemicals do you use and are they safe for my kids and pets?

All of the chemicals that we use are safe for pets and people. The primary cleaning ingredients are sodium hypochlorite (bleach) and a surfactant (soap). If we are cleaning concrete there are other professionally manufactured chemicals that are used, which are also safe. The sodium hypochlorite is obtained from a chemical supplier. Ordinary, off-the-shelf bottles of bleach do not contain a high enough concentration of sodium hypochlorite to clean effectively. When combined with special soaps that are formulated to cling to vertical surfaces we have an effective means to clean your home. Sodium hypochlorite breaks down into salt, which is harmless to people or pets.

I have black streaks and “stuff” growing on my roof. What can I do about that?

The same soft wash process that we use to clean your siding can be applied to your roof. The black streaks are gloeocapsa magma, a species of bacteria which gets its ability to survive through sunlight and the limestone filler frequently found in the manufacturing process of asphalt shingles. The black streaks are the gravity pulling the gloeocapsa magma down the shingles. The Asphalt Roofing Manufacturer’s Association indicates that there is no scientific evidence to suggest that gloeocapsa magma damages roofs. Roofs should NEVER be pressure washed. The high pressures will damage the granules found in the shingles and can force water under the shingles. Our process uses a 12 volt pump to supply a high concentration of chemicals onto your roof. We allow the chemicals to remain on the roof without rinsing, and let Mother Nature do the rest. The gloeocapsa magma is destroyed once the chemicals touch it. Rain and weather complete the process and gently remove the bacteria, lichens and other materials growing on your roof.

I have black spots on the side of my house. What are they and can you remove them?

These black spots may be Artillery Fungus. Artillery fungus is related to the mushroom. Artillery fungus lives in mulch and is very small. The mulch provides the moisture necessary to thrive. To repopulate, artillery fungus shoots tiny spores that become attached to siding. These tar-like, sticky spots are what you see on your house. If you scrape off the black spots with your fingernail a small stain will remain. Cleaning your residence will not remove these stains. I do not know of any commercial product that will completely remove these stains without causing rub marks or discolored areas on your siding.

Why should I pay someone to clean my house when I can rent or buy a pressure washer and do it myself?

A very good question. If you rent a pressure washer from one of the many local home improvement stores, you will get a pressure washer with a couple of nozzles and maybe 10 minutes of instruction on using it. These local stores do not provide you with a means to inject chemicals into the water, they will not tell you which nozzle is appropriate for what conditions. Without using the correct nozzles, you risk forcing water under your siding, damaging caulking as well as the seals around windows. The consumer grade pressure washers that are available are good for the occasional cleaning of patio furniture, the grates of a barbeque grill or other small areas. They will not hold up to cleaning an entire house.

Why should I hire Water Pro to clean my house, driveway or roof?

We are fully insured. We will meet with you in person to look at your home and provide you with a free estimate. We listen to our customers and are responsive to them. We will fully explain how we will clean your home and how long it takes. If you chose to use Water Pro we will set up a date and time. It is not necessary for you to be home when we do the work. All we need is access to your water spigot and your windows closed (assuming we are washing your house). If you will be home, prior to our leaving we will walk around with you so that the work is done to your satisfaction. You do not pay us until you are satisfied with what we have done.

Pressure Washing Resource Association
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