Roof Cleaning
ROOF CLEANING IN Wilmington, NC.
Those dark streaks running down your shingles are Gloeocapsa magma, a hardy blue-green algae that feeds on the limestone in asphalt roofing. Dirty Details Pressure Washing provides professional roof cleaning across Wilmington, NC, and nearby New Hanover County. We use low-pressure soft washing to remove algae, moss, and lichen safely, protecting both your shingles and your manufacturer warranty for years.


HIGH PRESSURE IS HOW ROOFS GET RUINED.
It is tempting to think a strong blast will clear those streaks fastest, but high pressure tears the protective granules off asphalt shingles and can void your warranty in the process. Roofing manufacturers call for low-pressure cleaning for exactly that reason. We soft wash instead, applying treatments that kill the algae, moss, and lichen where they grow.
The stains lift without a single granule lost, and the roof is left clean, protected, and years further from an early replacement.
- Low-pressure soft wash only
- Protects shingles and granules
- Keeps your warranty intact
- Kills algae, moss, and lichen
ROOF CLEANING
TAKE YEARS OFF YOUR ROOF'S APPEARANCE, NOT ITS LIFE.
A streaked, stained roof can make an otherwise sharp home look decades older, and the algae behind it slowly shortens the roof's life as it spreads. We clear those black streaks and green patches with a gentle soft wash that restores the roof's color while leaving the shingles untouched. Your home looks newer from the curb, and the roof over it lasts longer.
COASTAL ROOFS GROW ALGAE FAST.
Wilmington's humidity, warmth, and salt air create nearly perfect conditions for roof algae, which is why those streaks appear so quickly here. North-facing and shaded slopes go dark first, holding moisture that feeds the growth. We understand the coastal pattern and treat the whole roof accordingly, clearing what has taken hold and slowing how fast it returns across every exposure.
WE KNOW WHAT COASTAL ALGAE DOES TO SHINGLES.
After 3 years cleaning roofs along this coast, we have seen exactly how salt, shade, and humidity work on asphalt, metal, and tile. That means we recognize early moss before it lifts shingles, know which slopes hold algae longest, and apply the right treatment strength for each. Your roof gets cleaned by people who understand what coastal weather does to it.
WHAT PROFESSIONAL ROOF CLEANING DELIVERS
A LONGER ROOF LIFE
Algae and moss trap moisture and eat away at shingles over time. Removing them safely stops that deterioration, helping your roof reach or exceed the lifespan the manufacturer intended before replacement becomes necessary.
A RESTORED, NEWER LOOK
Clearing black streaks and green growth instantly refreshes your roof and the whole home beneath it. The change often looks like a brand-new roof at a small fraction of what replacement would cost.
PROTECTED WARRANTY COVERAGE
Most shingle warranties require low-pressure cleaning to stay valid. Our soft wash method follows those guidelines, so you clear the algae without risking the coverage that protects your investment in the roof.
LOWER COOLING BILLS
Dark algae streaks absorb heat and drive up attic temperatures in summer. A clean, reflective roof helps your home stay cooler, which can ease the load on your air conditioning during Wilmington's long warm season.
PREVENTED MOISTURE DAMAGE
Moss and lichen lift and separate shingles, opening paths for water to reach the decking below. Removing them protects the layers beneath your roof from leaks, rot, and the costly interior damage that follows.
PEACE OF MIND
Knowing your roof is clean, sound, and cleaned by the right method removes a nagging worry. You get a refreshed roof and the confidence that it was handled without shortcuts that could cost you later.
WHAT WE CLEAN
OUR ROOF CLEANING SERVICES IN WILMINGTON, NC
Different roofing materials call for different care, and coastal growth ranges from surface algae to rooted moss. We match the treatment to your roof and the problem living on it.

ASPHALT SHINGLES
Asphalt Shingle Soft Wash
Asphalt shingles need gentle treatment to stay intact. We apply low-pressure soft washing that dissolves algae and streaks without dislodging the granules, restoring an even color while keeping the shingle surface fully protected.

METAL ROOFS
Metal Roof Cleaning
Metal roofing shows oxidation, streaks, and grime that dull its finish over time. We clean it with methods that lift buildup and restore shine without scratching the coating or leaving the surface prone to corrosion.

ALGAE & STREAKS
Algae & Black Streak Removal
Those dark vertical streaks are algae, not dirt, and they return unless treated at the root. Our soft wash solutions kill the growth completely, clearing the streaks and slowing how quickly they come back.

MOSS & LICHEN
Moss & Lichen Treatment
Moss and lichen root between shingles and lift them, inviting leaks. We treat and remove these tougher growths carefully, clearing them from the surface while protecting the shingles they have started to work loose.

TILE ROOFS
Tile Roof Cleaning
Tile holds moss and algae in its ridges and porous surface. We soft wash tile roofs to clear that growth thoroughly, restoring their look while protecting both the tiles and the underlayment beneath from damage.

GUTTER LINE
Gutter-Line Stain Treatment
Dark stripes along the roof edge come from runoff and trapped debris. We treat these gutter-line stains as part of the roof clean, so the finish looks even all the way down to the eaves.
THE WORD ON OUR WORK
WHAT OUR CLIENTS SAY.
Clients often tell us their clean roof made the whole house look years newer, and that they appreciate knowing it was done the safe, warranty-friendly way. That trust is why Wilmington homeowners recommend our roof cleaning to their neighbors.
faq
frequently asked
questions.
The questions Wilmington homeowners ask most about roof cleaning, from what causes the streaks to whether the process is safe for their shingles.
What causes the black streaks on my roof?
The streaks are Gloeocapsa magma, a blue-green algae that feeds on the limestone filler in asphalt shingles. It spreads in humid, shaded conditions, which is why coastal roofs streak so quickly and noticeably here.
Does pressure washing damage a roof?
Yes, straight high pressure strips protective granules and can void your warranty. That is exactly why we use low-pressure soft washing, which clears algae and moss safely without harming the shingles or their coating.
Will roof cleaning void my shingle warranty?
No, our method protects it. Most manufacturers require low-pressure cleaning, and our soft wash follows those guidelines. Aggressive pressure washing is what risks the warranty, and we never use it on your roof.
How long do the results last?
Because we kill the algae at the root, results typically last several years. Dirty Details Pressure Washing soft washes roofs across Wilmington, NC, where the humid coastal climate slows regrowth, and periodic treatments keep the roof clear longer.
Can you remove moss from my roof?
Moss requires a careful approach since it roots between shingles. We treat and clear it with soft washing and hand attention where needed, removing the growth without prying up the shingles it has loosened.
Is soft washing safe for all roof types?
Soft washing is safe for asphalt, metal, tile, and most other roofing when applied correctly. We adjust our solutions and technique to your specific material, cleaning thoroughly while protecting the surface and everything beneath it.
How do you clean the roof without walking all over it?
We minimize foot traffic by applying and rinsing treatments from safe vantage points and using proper equipment. Reducing time on the shingles protects both the roof and our team while still delivering a thorough clean.
Why should I choose Dirty Details Pressure Washing for roof cleaning?
Dirty Details Pressure Washing soft washes every roof to protect your shingles and warranty, and we understand how coastal algae behaves. Homeowners across Wilmington, NC, trust our licensed and insured team to clean roofs the right way.
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HOW WE WORK
FROM STREAKED TO SPOTLESS, HERE IS HOW.
STEP 01
ASSESS THE ROOF
We inspect your roof to identify the material, the type of growth, and any fragile areas, then plan a soft wash approach that clears the algae or moss without stressing the shingles.
STEP 02
PROTECT THE SURROUNDINGS
Before treating the roof, we pre-rinse and shield the plants, gutters, and surfaces below. This prep keeps your landscaping safe as cleaning solutions and dissolved growth rinse down from above.
STEP 03
APPLY SOFT WASH TREATMENT
We apply low-pressure cleaning solutions across the roof, targeting algae, moss, and lichen. The treatment penetrates and kills the growth at the root rather than only loosening what sits on the surface.
STEP 04
LET IT BREAK DOWN
The solution needs time to fully kill the organic growth. We allow the proper dwell period so streaks and moss release completely, which is what makes the roof stay clean well into the future.
STEP 05
GENTLE RINSE
Using controlled low pressure, we rinse the treated growth away without disturbing the granules. The roof comes clean evenly, from the ridge to the gutter line, with the shingle surface left fully intact.
STEP 06
INSPECT AND CONFIRM
We review the finished roof for any lingering spots and check the areas below for cleanup. Once everything meets our standard and yours, we consider the job complete and the roof protected.
➜ GET YOUR FREE ESTIMATE
GET YOUR FREE ESTIMATE
CLEAR THE STREAKS THE SAFE WAY, FOR FREE.
A cleaner roof and a longer roof life start with the right method. Dirty Details Pressure Washing soft washes roofs across Wilmington, NC, and nearby communities. Reach out through our contact page for your free estimate.
WHAT YOUR FREE ESTIMATE COVERS:
- A full roof and growth assessment
- Low-pressure soft wash pricing
- Moss and lichen treatment options
- Warranty-safe cleaning methods
- Protection for plants below
- A clear, no-pressure quote

