Roof Cleaning
in Long Island, NY
Over 7,000 Roofs Cleaned on Long Island!
Clean Black Staining, Moss, and Lichen off Your Long Island Roof
Long Island’s humid coastal air and four-season weather are hard on roofs. Warm, moisture-heavy summers feed algae colonies that show up as dark streaks across shingles, while freeze-thaw cycles through the winter give moss and lichen the foothold they need to dig in. Left alone, that organic growth holds moisture against the roof surface and can quietly take years off a roof that otherwise has plenty left.
We handle it with a soft wash process that lets a proprietary algaecide blend do the work at low pressure, and results show immediately. Here at Squeaky Clean Property Solutions, we have been cleaning Long Island roofs for over 20 years, and we back every roof cleaning with a two-year written warranty.
If you can see dark streaks, green patches, or textured growth up on your roof, give us a call at (631) 387-2156 for a free estimate.
- Over 20 years of experience
- 2-year spot-free warranty
- 400+ five-star reviews
- Licensed, insured, and certified
- Over 20 years of experience
- 2-year spot-free warranty
- 400+ five-star reviews
- Licensed, insured, and certified
The Roof Types We Clean on Long Island
Our soft wash process is adapted to each roof material so the chemistry and pressure match what the surface actually needs.
Asphalt Shingle
Asphalt shingles are the most common residential roof material across Long Island and the surface most visibly affected by the region’s moisture-driven black staining. We clean them with our low-pressure foam process only. A proprietary blend of environmentally friendly algaecides kills the organic growth without mechanical scrubbing or surface damage.
Slate
Slate is one of the most durable roofing materials but also one of the most fragile under pressure. We treat slate roofs with soft wash chemistry only, at an appropriate concentration, and the crew avoids walking fragile surfaces where pitch is a concern.
Cedar Shake
Cedar shake is cleaned with the same proprietary algaecide blend, adjusted for the wood surface. The low-pressure foam process protects the shake without damaging or stripping the wood. Long Island’s housing stock includes significant cedar siding and shake, especially in coastal and affluent areas, and these roofs collect the same organic growth as any other surface here.
Why Long Island Homeowners Choose Us for Roof Cleaning
A clean roof matters, and who cleans it matters just as much. Here is what sets the work apart.
Over 20 Years of Long Island Experience
We have been cleaning and restoring properties across Long Island since 2006. That is over twenty years of evaluating roof pitches, assessing growth severity, and knowing when a cedar shake needs a different approach than an asphalt shingle. If it is an odd one-off situation, we have probably seen it before, and we know how to handle it.
Fully Licensed and Insured, Documented on Every Job
Roof work happens where the homeowner cannot see it. We are fully licensed and insured, and we photograph every job start to finish, including the upper roof, any existing damage, and anything that needs attention. You get proof of what was done and protection if anything comes up.
Safe, Plant- and Pet-Friendly Soft-Wash Approach
Roof cleaning runoff reaches landscaping and flower beds through gutters and downspouts. We take extensive precautions to protect your landscaping, pets, and property
Has Your Roof Been Flagged by Your Homeowners Insurance Company?
If roof staining, moss, or lichen has been flagged during an insurance review, contact us right away. We prioritize insurance-related roof-cleaning requests, provide immediate visible results, and send detailed before-and-after documentation upon completion.
To date, we have never had our completed roof-cleaning work rejected by a homeowner’s insurance company.
How Our Roof Cleaning Process Works
From your first call to the final walkthrough, our process is designed to make roof cleaning simple, thorough, and worry-free.
The Free Estimate and Roof Assessment
When you contact us, you’ll speak with an office manager, and requests are typically responded to within 30 minutes.
We assess your roof’s material, pitch, and condition, along with the severity of any algae, moss, or lichen growth. Most assessments can be completed using satellite imagery and remote roof measurements. On-site appointments are also welcomed for larger or more complex properties.
We also evaluate your gutters and gutter guards, downspout drainage, and surrounding landscaping so we can plan the safest and most effective cleaning approach.
You’ll receive a detailed written estimate outlining the recommended scope of work and cleaning method, typically within 24 hours.
Scheduling and Pre-Service Updates
Once your service is scheduled, we keep you informed every step of the way.
You’ll receive a series of updates leading up to your appointment, including:
- A reminder approximately two days before service
- Another reminder the day before service
- A same-day confirmation
- An “On Our Way” notification when the crew is headed to your home
You’ll always know when to expect us.
Site Preparation and Plant Protection
Before cleaning begins, we carefully prepare the property.
Our crew photographs the roof and documents any existing damage so there is a clear record of the roof’s condition before work begins. We remove heavy debris from the roof and thoroughly clean the gutters as part of the preparation process.
We also take extensive precautions to protect your property. Landscaping is thoroughly wetted before treatment, and we manage downspout drainage throughout the cleaning process to help protect flower beds and surrounding areas.
Soft-Wash Cleaning and Treatment
We use a low-pressure foam soft-wash system and a proprietary blend of environmentally friendly algaecides specifically formulated to treat roof growth.
No high pressure is used on the roof surface.
The cleaning solution is allowed to dwell for approximately 10–15 minutes so it can effectively break down algae, moss, and other organic growth. We then re-treat the roof as needed and thoroughly rinse the roof, downspouts and surrounding areas.
The goal is not simply to make the roof look cleaner; it is to properly treat the organic growth responsible for the staining and buildup.
Before-and-After Roof Documentation
We take before-and-after photographs of the upper roof so you can see the results for yourself.
Since most homeowners cannot safely see the entire roof from the ground, these photographs provide a clear look at what was cleaned, what changed, and the condition of the roof after service.
Final Walkthrough and Satisfaction Check
Once the work is complete, we perform a final inspection of the property.
If you are home, the crew will walk through the finished job with you and review the results. We want you to be completely satisfied with the work before we consider the job finished.
Your invoice is issued after the service is complete, and we stand behind every roof we clean.
From assessment through cleanup, our goal is simple: complete the work thoroughly, protect your property, and leave you confident in the results.
Roof Cleaning Pricing on Long Island
We use satellite imagery and remote roof measurements to prepare an accurate, detailed written quote without requiring an initial on-site appointment. On-site appointments are also welcomed.
- Roof cleaning is priced by roof material, accessibility, pitch, the severity of growth (light black staining versus heavy moss or established lichen), gutter and guard condition, downspout drainage, and whether sensitive landscaping sits below the roofline. Minimum duration is roughly two hours and scales with roof size. Call for your exact quote.
- Bundle discount: Add roof cleaning to a house wash, gutter cleaning, gutter guard installation, roof inspection, or another service to earn a discounted price. Ask about available bundle savings when you get your estimate.
Our Roof Cleaning Guarantee
Roof Cleaning 2-Year Spot-Free Warranty
Our roof cleaning is backed by a 2-year spot-free warranty, giving you added confidence that your roof will stay looking cleaner long after the service is complete.
100% Satisfaction Guarantee
100% satisfaction guaranteed. If you’re not happy with the result, we’ll come back out, take a look, and make it right.
Roof Cleaning FAQs
How long do roof cleaning results last?
Results typically last four to six years, depending on the roof’s exposure. Tree canopy proximity, persistent shade, and coastal moisture can shorten the interval. The two-year written warranty covers the return of black staining, moss, and lichen within that window, provided the gutters are maintained regularly. Beyond the warranty period, the treatment continues working, and a proper soft wash cleaning can add five to ten years to the overall life of the roof. We also offer shingle repair and roof inspections, so smaller issues can be addressed before or alongside a cleaning.
Is it safe to pressure wash my roof?
We use a soft wash, low-pressure foam process for every roof we clean: a proprietary blend of algaecides applied at low pressure, letting the chemistry do the work rather than mechanical force. Pressure washing is not used on roofs because high pressure damages shingles, strips protective granules, and can void manufacturer warranties. The soft wash approach is the industry-standard safe method for residential roof cleaning.
Do I need to be home during roof cleaning?
You do not need to be home during the cleaning.
If you are home, the crew will walk through the completed job with you so you can review the results. If you are not home, the crew will photograph everything before and after the cleaning and follow up so you can see exactly what was completed.
Either way, the cleaning process and before-and-after documentation remain the same.
How do I know if my roof needs cleaning?
Common signs that your roof may need professional cleaning include:
- Black streaks
- Green moss
- Algae
- Lichen
- Debris accumulation
- Roof discoloration
- Heavy buildup in shaded areas
- The roof has not been cleaned in five or more years
How often should I have my roof cleaned?
Most homeowners should consider having their roof professionally cleaned every three to five years. However, the ideal frequency depends on factors such as shade, moisture, surrounding trees, climate, and how quickly algae or moss returns.
Regular cleaning can help keep your roof looking its best and prevent biological growth from becoming a larger maintenance issue.
Get Your Free Roof Cleaning Quote on Long Island
Your Long Island roof takes on a lot between the coastal moisture and the seasonal shifts, and a soft wash cleaning is the straightforward way to handle it. Call us at (631) 387-2156 for a free, no-obligation estimate.