Clean Your Nest Without Damaging It.
Soft Washing
The black streaks on your roof and the green film on your siding aren't just dirt — they're living organisms actively breaking down your exterior. Soft washing kills them at the root, safely, without the damage that high-pressure washing causes.
Pressure washing can blast the surface clean temporarily, but it doesn't kill the root system — so the algae, mold, and mildew come back fast. It can also strip paint, crack siding, and force water behind your exterior where it causes damage you can't see.
Soft washing uses low-pressure application of biodegradable cleaning solutions that kill the growth at the source. The results last significantly longer and there's no risk of damage to shingles, siding, or painted surfaces.
East Tennessee Grows Things Fast
The humidity, tree cover, and rainfall that make East Tennessee beautiful also make it a perfect environment for algae, mold, and lichen to take hold on your home's exterior. Left unchecked, these organisms don't just look bad — they degrade roofing materials, stain siding, and eat away at wood surfaces.
Soft washing is the right tool for the job. It's what many shingle manufacturers recommend to maintain warranty coverage, and it's what we use because it works — not because it's the fastest option.
What We Provide
- Safe for all exterior surfaces
- Kills algae, mold & mildew at the root
- Roof, siding, decks & driveways
- Biodegradable, plant-safe cleaning solutions
- Results last longer than pressure washing
- No risk of surface damage or water intrusion
- Removes black streaks, green film & lichen
- Consistent with manufacturer warranty guidelines
Harpy Exteriors cleans your nest the right way — killing what's growing on your home at the root and leaving your exterior looking sharp without putting it at risk.
Common Questions
What's the difference between soft washing and pressure washing?
Pressure washing uses high-force water to blast debris off surfaces. It works for concrete and hardscaping but can damage shingles, siding, and painted wood. Soft washing uses low pressure combined with cleaning solutions that kill organic growth at the root. The results last much longer and there's no risk of surface damage.
Is soft washing safe for my plants and landscaping?
We use biodegradable solutions and take precautions to protect landscaping — pre-wetting plants, rinsing after application, and avoiding direct contact with sensitive areas. We'll walk the property with you beforehand if you have specific concerns.
How long do soft washing results last?
Typically two to four years depending on the level of tree cover and moisture around your home. Shaded, damp areas tend to see regrowth faster. Pressure washing results usually last six to twelve months by comparison.
Can you soft wash my roof without voiding the warranty?
Many shingle manufacturers actually recommend soft washing over pressure washing and some require it to maintain warranty coverage. We use methods consistent with manufacturer guidelines.
Protect Your Nest
Free estimates, no pressure. We'll come out, take a look, and give you a straight answer on what your home needs.
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