Roof Cleaning
Safe pressure washing and soft-wash roof cleaning that removes black streaks, algae, and moss — backed by our No-Break Guarantee.
Overview
Roof cleaning is the most overlooked exterior maintenance task in Orange County — and the most expensive to ignore. Those black streaks running down your roof are not dirt; they are Gloeocapsa magma, a hardy algae that feeds on the limestone filler in asphalt shingles. Left untreated, it shortens roof life by years and voids many manufacturer warranties. On tile and concrete roofs the same growth turns into moss, traps moisture, and pushes tiles out of alignment.
Done right, a roof can be pressure washed safely — without damage. Our crews are specifically trained to dial in the correct pressure, tip, distance, and angle for each roof material, and to combine pressure washing with soft-wash chemistry where it makes sense. The result is a deep, uniform clean that restores curb appeal and extends roof life, with none of the granule loss, cracked tiles, or warranty issues that come from inexperienced operators.
We stand behind our work with a No-Break Guarantee: if any tile cracks as a result of our crew working on your roof, we repair or replace it at no cost to you. Combined with full liability insurance and before/after photo documentation on every job, you can book with complete peace of mind.
What's included
- Safe pressure washing and soft-wash treatment of the entire roof
- Algae, moss, lichen, and black-streak removal
- Landscape and gutter protection
- Before/after photo documentation
- No-Break Guarantee — cracked tiles repaired or replaced at no cost
Why it matters
- Extends roof life and protects warranty
- Removes black streaks for years, not months
- Improves home efficiency by reflecting heat properly
Safe pressure washing — without damage
Most horror stories about pressure-washed roofs come from one thing: the wrong settings in untrained hands. Our trained technicians use calibrated equipment, the correct PSI and nozzle for each roof material, and a controlled wash pattern that lifts moss, algae, and lichen without stripping granules or cracking tiles. Where appropriate we pair the wash with a low-pressure soft-wash treatment so the organic growth is killed at the root and stays gone for years.
Our No-Break Guarantee
Tile roofs — especially older concrete and clay — can develop hairline cracks long before anyone walks on them. We treat every roof like it is one careful step away from a repair bill, but if any tile is cracked as a result of our work, we replace or repair it at no charge. That promise is in writing on every roof cleaning estimate.
What a roof cleaning visit looks like
We protect landscaping and gutters, inspect the roof for existing cracks or loose tiles, then begin the wash from the ground or from foam-padded ladder positions whenever possible. Heavier growth is treated with our roof-safe detergent and given proper dwell time before rinsing. You will see streaks fade within minutes; full results appear over the next several days as remaining spores die off. We document the work with before/after photos so you can confirm the difference.
Surfaces we treat
- Asphalt and architectural shingle roofs
- Concrete and clay tile roofs
- Slate and synthetic slate
- Metal roofing
- Flat and low-slope roofs
- Cedar shake (specialty service)
Pricing
Most residential roof cleaning jobs in Orange County run $400–$1,200 depending on roof size, pitch, material, and condition. Get an exact price in under a minute with our online quote.
Get my priceFrequently asked
Is it safe to pressure wash a roof?+
Yes — when it is done by trained crews with the right equipment and technique. We dial in the correct PSI, nozzle, and distance for each roof material so the roof gets a deep clean without losing granules or cracking tiles. For roofs where chemistry alone is the better tool, we use a low-pressure soft-wash instead.
What is the No-Break Guarantee?+
If any tile cracks as a result of our crew working on your roof, we repair or replace it at no cost to you. It is in writing on every estimate and backed by our full liability insurance.
How long do results last?+
Most roofs stay clean for 4–7 years after a professional soft wash, depending on tree coverage and humidity exposure.
Do you walk on my roof?+
Only when necessary. Most jobs are completed from ladders or the ground, which is safer for both our crew and your roof. When walking the roof is unavoidable, we follow trained foot patterns to minimize stress on tiles — and our No-Break Guarantee has you covered if anything cracks.
Will the detergent harm my plants?+
We pre-rinse and protect landscaping throughout the job. Our detergents are biodegradable and diluted to plant-safe levels — but extra care is taken near sensitive specimens.
Can you treat moss on tile roofs?+
Yes. Moss is common on north-facing concrete and clay tile roofs in Orange County. Our treatment kills the moss at the root so it does not return for years.