Exterior House Washing in Cumming, GA
Safe soft washing removes algae, mildew, pollen, and stains from every exterior surface of your Cumming home without damage to paint or siding.
What Exterior House Washing Covers in Cumming, GA
Green streaks running down your siding, dark patches forming on trim and fascia, a dull film settling over the entire exterior — these are the visible signs that your home's outside surfaces need professional attention. In Cumming and across Forsyth County, every exterior surface on your home is dealing with the same forces: sustained humidity, heavy pollen seasons, red clay dust, and the biological growth that thrives in Georgia's climate.
Exterior house washing covers every outside surface of your home — siding (vinyl, Hardie board, wood, aluminum, stucco), trim, soffit, fascia, window frames, gutters, downspouts, foundation walls, and brick or stone veneer. This is exterior cleaning only — not interior house cleaning. We clean the building shell from the roofline down to the foundation, removing everything that has accumulated on those surfaces since the last cleaning.
Georgia's summer heat and humidity accelerate biological growth on all exterior surfaces in Cumming. Algae, mold, and mildew colonize shaded walls first — typically north-facing sides and areas under eaves or tree canopy — then spread across the rest of the home over time. The growth feeds on the organic material in your siding and trim, actively degrading those surfaces while making your home look neglected. Left long enough, the staining becomes permanent.
Soft washing is the correct method for exterior house washing — not high-pressure spray. High pressure cracks vinyl siding, forces water behind panels where it causes mold in wall cavities, strips paint, and damages stucco finishes. Soft washing uses low pressure combined with professional cleaning solutions to kill biological growth at the root and lift embedded dirt without any risk to the surface. It is the method recommended by every major siding manufacturer.
How OCB Performs Exterior House Washing in Cumming, GA
Every exterior house washing job begins with a full walkthrough and surface assessment. We identify the siding material, check for areas of heavy biological growth, note any existing damage or vulnerability points, and determine the correct cleaning solution concentration for the conditions we find. This assessment takes ten to fifteen minutes and ensures we apply the right approach to every surface on your home.
We apply our soft wash cleaning solution from the bottom up. This prevents streaking caused by solution running down dry surfaces and ensures complete, even coverage. The solution is designed to kill algae, mold, and mildew at the root level — not just clean the surface layer. We allow adequate dwell time for the solution to penetrate biological growth before rinsing, which is what makes the difference between a clean that lasts months versus one that lasts years.
After the solution has had proper dwell time, we rinse from the top down with low-pressure water, carrying all loosened contaminants off the surface in a controlled, systematic pass. We pay special attention to areas under eaves, around windows, and along foundation lines where buildup tends to be heaviest. We rinse gutters, downspouts, and any trim that was treated.
Before leaving, we do an after-job walkthrough with you to confirm the results. We point out any areas that may need attention in the future, such as spots where caulking is failing or paint is beginning to show wear. We pre-wet and rinse all landscaping adjacent to the home to protect plants from any cleaning solution contact. We have been washing homes across Cumming and Forsyth County for over 17 years.
Exterior House Washing vs. General House Washing in Cumming, GA
You search for house washing. Then you see exterior house washing. Are they the same thing? Most homeowners assume they are, and that assumption is why so many people end up with a wash that only covered part of the problem. Exterior house washing means the complete outside envelope of your home. Every vertical surface, every horizontal surface, every architectural detail that faces the weather. Not just the siding panels you can see from the driveway.
Here is what "exterior" specifically includes that a siding-only wash does not: soffits, fascia, eaves, gutter exteriors, window trim, shutters, downspouts, porch ceilings, columns, and foundation skirting. These are exactly the surfaces where organic buildup concentrates on your home. They sit under overhangs, so they stay shaded and damp longer than any other part of the structure. Algae and mildew colonize them first and hold on longest, because sunlight never gets a chance to dry them out.
Cumming and Forsyth County make this worse. The humid subtropical climate, heavy annual rainfall, and mature tree canopy in neighborhoods across South Forsyth mean shaded architectural details accumulate mildew far faster than sun-exposed siding faces. You will see it on your own street. A home can look perfectly clean from the road while the north-facing eaves and soffits are visibly green up close. The siding got sun. The details did not.
The job itself is different too. A full exterior wash means reaching second-story surfaces, working carefully around gutter lines, and adjusting solution strength as the surface changes. Painted trim needs a gentler mix than vinyl. Brick tolerates something different than stucco. Your home almost certainly combines several of these materials, and each one gets its own handling in a single visit. That judgment is the difference between a complete wash and a quick rinse.
So when homeowners in Cumming ask for exterior house washing, what they are really asking for is the whole envelope handled in one visit. Soffit to skirting, front elevation to back porch ceiling. That is exactly what you get. Call (404) 632-8810 and we will walk your home with you and quote the complete exterior, not just the siding.
Frequently Asked Questions
Everything you need to know about exterior house washing.
Exterior house washing is the professional cleaning of all outside surfaces of your home — siding, trim, soffit, fascia, brick, stucco, window frames, gutters, and foundation walls. This is entirely exterior work. We do not enter your home or clean any interior surfaces. Interior house cleaning is a completely different service provided by different companies. When we say house washing, we mean the outside of the building only.
Yes. Soft washing is the manufacturer-recommended cleaning method for vinyl, Hardie board, wood, aluminum, stucco, and painted surfaces. It uses low water pressure — typically under 500 PSI — combined with professional cleaning solutions to kill biological growth and lift embedded dirt without damaging the surface. High-pressure washing on these materials risks cracking vinyl, forcing water behind panels, stripping paint, and damaging stucco finishes. Soft washing eliminates all of those risks.
Most homes in Cumming benefit from exterior house washing once a year. Forsyth County's humidity and the shade from mature hardwood trees accelerate algae, mold, and mildew growth on exterior surfaces. North-facing walls and shaded sides of the house typically show biological growth first and may need attention more frequently. Homes in heavily wooded neighborhoods like Windermere, Sharon Springs, and the Polo Golf corridor often see faster exterior buildup than homes in open subdivisions.
No. Professional soft washing is specifically designed to clean painted surfaces safely. The low pressure we use — under 500 PSI — is far below the threshold that would lift or damage properly adhered paint. If paint is already peeling, flaking, or failing, water at any pressure will reveal that existing damage, but our method does not cause it. Soft washing actually extends paint life by removing the biological growth that breaks down paint bonds over time.
A standard single-family home in Cumming takes two to four hours depending on the size, the number of stories, the level of biological growth, and how much surface area needs treatment. Larger homes and heavily soiled surfaces take longer because the cleaning solution needs adequate dwell time before rinsing. We give you a time estimate before we start so you can plan your day accordingly.
Yes. We take specific precautions to protect your landscaping during every exterior house washing job. We pre-wet plants and shrubs before applying cleaning solutions, use plant-safe concentrations, and rinse landscaping thoroughly after the job is complete. Our cleaning solutions are biodegradable and break down quickly in soil. We have been washing homes surrounded by mature landscaping across Forsyth County for over 17 years without incident.
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