How Often Should You Wash the Exterior of Your Home in Norfolk County?
- Under Pressure Power Washing

- Jul 21
- 4 min read
If you've ever wondered how often you should wash the outside of your home, you're not alone. It's one of the most common questions we hear at Under Pressure Power Washing.
The answer isn't the same for every home. Here in Norfolk County, our climate plays a big role in how quickly algae, mildew, moss, dirt, and other organic growth build up on exterior surfaces. High humidity, frequent rain, tree cover, and nearby farmland all contribute to faster buildup than many homeowners realize.
A regular exterior cleaning schedule not only keeps your property looking great—it also helps protect your investment by preventing premature wear and costly repairs.
House Siding
Recommended: Every 1–2 years
Vinyl, aluminum, stucco, brick, and other exterior finishes all collect dirt, pollen, algae, mildew, cobwebs, and airborne contaminants over time.
Homes surrounded by mature trees or located in shaded areas often develop green algae much faster than homes in full sun. North-facing walls are especially prone to algae and mildew because they stay damp longer after rain.
Rather than using high pressure, we use a professional soft washing process that safely removes organic growth without damaging your home's exterior.
You may need cleaning sooner if you notice:
Green staining on siding
Black mildew spots
Spider webs around eaves and soffits
Dirt streaks beneath windows
A dull or faded appearance
Roof Cleaning
Recommended: Every 3–5 years (or when black streaks first appear)
Those black streaks on your roof aren't simply dirt—they're usually caused by
Gloeocapsa magma, an airborne cyanobacteria that feeds on the limestone filler found in many roofing materials.
Once it begins growing, it continues spreading unless properly treated.
Ignoring roof algae can lead to:
Reduced curb appeal
Increased heat absorption
Moisture retention
Moss growth
Premature roof deterioration
Professional roof cleaning uses a low-pressure soft wash system designed specifically for roofing materials. The cleaning solution eliminates algae at its source rather than simply blasting away the visible stains.
Gutters
Recommended: Twice per year
Gutters protect your home by directing rainwater safely away from your foundation.
Leaves, pine needles, maple seeds, and other debris can quickly clog gutters, especially during the spring and fall.
Blocked gutters may cause:
Water overflowing onto siding
Basement moisture problems
Foundation issues
Fascia damage
Ice buildup during winter
Regular gutter cleaning helps avoid expensive repairs while ensuring your drainage system works as intended.
Exterior Windows
Recommended: Once or twice each year
Clean windows make an immediate difference to the appearance of your home.
Professional window cleaning removes:
Water spots
Pollen
Dust
Spider webs
Tree sap
General environmental buildup
Many homeowners choose to have their windows cleaned at the same time as their house wash for a complete exterior refresh.
Driveways, Walkways and Concrete
Recommended: Every 1–2 years
Concrete is constantly exposed to dirt, algae, vehicle fluids, rust stains, tire marks, and organic growth.
In shaded areas, algae can make walkways slippery, increasing the risk of slips and falls.
Professional surface cleaning restores a bright, clean appearance while helping improve safety around your home.
Patios and Retaining Walls
Recommended: Every 1–2 years
Patios and landscape walls often collect:
Moss
Algae
Lichen
Dirt
Leaf stains
Besides looking unattractive, these growths can create slippery surfaces and slowly deteriorate the appearance of your outdoor living space.
Routine cleaning helps keep your patio looking inviting for family gatherings and outdoor entertaining.
Why Norfolk County Homes Need Cleaning More Often
Norfolk County is a beautiful place to live, but it's also an ideal environment for algae and mildew.
Several local conditions contribute to faster exterior buildup:
Warm, humid summers
Lake-effect moisture from Lake Erie
Mature trees that create shade
Airborne pollen
Agricultural dust
Frequent rainfall
Long periods of morning dew
These conditions allow organic growth to establish itself much sooner than many homeowners expect.
A Good Rule of Thumb
For most homes in Norfolk County, this maintenance schedule works well:
House Soft Washing: Every 1–2 years
Roof Cleaning: Every 3–5 years or when staining appears
Gutter Cleaning: Spring and Fall
Window Cleaning: 1–2 times per year
Driveways & Walkways: Every 1–2 years
Patios & Landscape Walls: Every 1–2 years
Of course, every property is different. Homes surrounded by trees or located in shaded, damp areas may benefit from more frequent cleaning.
Protect Your Investment
Your home's exterior is constantly exposed to the elements. Dirt, algae, mildew, moss, and other contaminants don't just affect appearance—they can shorten the life of exterior surfaces if left untreated.
Routine professional cleaning keeps your property looking its best while helping preserve its value for years to come.
At Under Pressure Power Washing, we proudly serve homeowners throughout Norfolk County with professional pressure washing, soft washing, hot water washing, roof cleaning, gutter cleaning, window cleaning, and surface cleaning services. We use the right cleaning method for every surface to deliver outstanding results while protecting your home.
If you're unsure whether your home is due for cleaning, we'd be happy to provide a no-obligation site visit and personalized quote. Sometimes a quick walk around your property is all it takes to identify areas that could benefit from professional attention.



