Roof Cleaning
Remove Moss and Algae, Extend Roof Life
Those dark streaks and green patches on your roof aren't just unsightly, moss, algae, and lichen actually feed on and degrade roofing materials, shortening your roof's life. Professional cleaning removes them safely and protects your investment.
Roofs need gentle handling. Soft washing uses low-pressure water and cleaning solution to lift growth without damaging shingles, which is why this is a job for a pro rather than a high-pressure DIY blast that can void your warranty.
Abode connects you with local roof cleaning pros. Compare specialists, understand the cost, and add years to your roof's life.
Did You Know?
Roof algae and moss can shorten a roof's lifespan by years, meaning a few hundred dollars of cleaning can defer a five-figure roof replacement.
Roof Cleaning Cost. How Much Do Projects Cost?
Most projects run between $300 and $600. The average price is typically around $450.
| Cost Factor | Typical Range | Notes |
|---|---|---|
| Roof size | Larger costs more | More area to clean |
| Roof pitch | Steeper costs more | Requires special equipment and safety measures |
| Growth severity | Heavy growth costs more | More moss, algae, or lichen means more work |
Typical duration: 2 to 4 hours
Last reviewed: 03/08/2026
Signs You Need Roof Cleaning
- Dark streaks or stains on the roof
- Green moss or algae patches
- Lichen growth on shingles
- A roof that looks aged or dirty
- Debris trapped in roof valleys
Is It Right For You?
Who It's For
- Homeowners with visible moss, algae, or streaking
- Anyone protecting roofing materials and curb appeal
Who It's Not For
- Roofs needing repair or replacement instead
- Minor discoloration not affecting the roof
What to Watch Out For
High pressure can damage shingles and void warranties
Periodic cleaning may be needed in damp climates
Alternatives to Consider
| Alternative | Better When | Worse When |
|---|---|---|
| DIY cleaning | Saves the fee | High pressure risks damaging shingles and is unsafe at height |
| Leaving it | No cost now | Growth degrades the roof and shortens its life |
Is It Worth It?
Roof cleaning is worth it because removing moss and algae protects roofing materials and can add years of life, deferring a far costlier replacement.
Questions to Ask Your Pro
- Do you soft-wash to protect my shingles and warranty?
- Will the cleaning solution harm my landscaping?
- How long before the growth is likely to return?
Frequently Asked Questions
Soft washing, which uses low-pressure water and cleaning solution, averages $300 to $600 depending on the size of your roof.
The main drivers are roof size and pitch, the roofing material, and the level of moss, algae, or lichen growth that needs removal.
Steeper roofs are harder to clean and may require special equipment or safety measures, which increases labor cost.
Yes. Delicate asphalt shingles need gentle cleaning to avoid damage, while metal roofs can handle more rigorous techniques.
Removing moss and algae prevents them from degrading roofing materials, extends the roof's lifespan, and can improve energy efficiency and curb appeal.
