Licensed, bonded, and insured in Washington and Oregon
Professional Roof Cleaning & Moss Removal in Vancouver WA
Moss, algae, and lichen are silently destroying your roof — trapping moisture, lifting shingles, and causing leaks. Our gentle 5-step roof cleaning process removes growth safely without voiding your warranty. Licensed, insured, and backed by 685+ five-star reviews.
Years
Customers
Reviews
Employees
Why Customers Choose Us
Trust
We earn trust by delivering a consistently great experience. Clients return year after year, confident they'll receive the same high-quality service.
Quality
Our skilled crews provide workmanship that impresses and holds up over time.
Price
We offer fair, competitive pricing so customers can enjoy top-tier service without stretching their budget.
Our 5 Step Roof Cleaning Process
Step 1: Inspect
We start with a thorough roof inspection to identify moss, algae, and debris buildup. Our technicians check for problem areas like cracked shingles and heavy moss growth, ensuring we understand exactly what your roof needs for the best results.
Step 2: Brush
Using soft-bristle brushes, we carefully remove approximately 80% of the moss and debris. This gentle approach protects your shingles from damage while effectively clearing the bulk of buildup and preparing the surface for treatment.
Step 3: Clean
Our team uses professional backpack blowers to clear remaining dirt, moss fragments, and algae. We also clean up any debris from your property, leaving your roof completely clear for proper water drainage.
Step 4: Treat
We apply an FDA-approved moss treatment and preventative powder that kills remaining spores and prevents regrowth. This eco-friendly treatment is safe for your landscaping while providing long-lasting protection.
Step 5: Activate
The treatment activates naturally with rain. If weather stays dry, we'll hose down your roof to kickstart the process. Within 2-4 weeks, any remaining moss turns brown and sheds away, revealing a clean, protected roof.
What Our Customers Say
Worked all day to clean not just my roof but my little out building as well. Trimmed back branches that were hanging over the buildings. It was a bi...
Did a great job and was very polite.
I had moss and a lot of dirt accumulated on my 2 story roof. All Seasons did a fantastic job of sweeping off all the gunk then they treated the roof ...
I first met with Ben from All Seasons for landscape maintenance and gutter cleaning. Ben is enthusiastic, knowledgeable and thorough. This company is...
Very efficient and clear communication from scheduling to quotes to payments.
Very happy with the work completed by All Seasons. Our roof and gutters look amazing. Their two technicians, Vova and Ivan, were complete professi...
David and Ruslan did an excellent job on my mossy roof and throughly clogged gutters. They were on the roof all day and didn’t stop until after dark t...
The team was on time and transparent about prices. I also enjoyed their invoice breakdown with before and after pictures. Our gutters and our dryer ve...
Great customer service from start to finish. The team was timely, communicative, friendly, and respectful throughout the entire process. We especially...
Had a dryer cleaning done. I suspected the duct under the house became clogged, then the previous owner ripped the duct from the wall instead of remov...
I was very pleased with the service that I received from All Seasons Cleaning Services. Their crew called to let me know that they were on the way be...
The technician took his time and cleaned the roof, gutter guards and the gutter. They were piled up with pine needles, leaves, and twigs so it wasn't ...
Very professional. Like results. Thank you.
Gutter, roof cleaning. Replace some shingles and rusty nails. Last year tree cutting and plant trimming.
All Seasons did an amazing job cleaning the moss from my roof and treating the roof to prevent regrowth. They cleaned up all of the roof debris and le...
All Seasons did a great job of safely removing three very large trees adjacent to my yard fencing. They cleaned up the site well, communicated clearl...
I couldn’t be happier with the service from All Seasons! They did a fantastic job cleaning the moss off my roof and clearing out my gutters. They insp...
All Seasons came to do a 5-step roof cleaning and after the roof inspection 3 important issues were added that needed repairs. David was very eff...
I just want to take a minute to write a review because good work deserves to be recognized. I needed to have my roof cleaned due to extensive moss bui...
Very professional, & with great communication. We will definitely be using their services in the future.
Get Your Free Roof Cleaning Estimate
Join 790+ happy customers who trust All Seasons for their exterior cleaning needs.
Get Your Free EstimateWhy Roof Cleaning is Essential for Pacific Northwest Homes
In our wet Pacific Northwest climate, moss, algae, and lichen thrive on rooftops. Left untreated, these organisms trap moisture against your shingles, leading to premature deterioration, wood rot, and costly repairs. Regular professional roof cleaning isn't just about curb appeal - it's essential maintenance that protects your home's structural integrity and extends your roof's lifespan by years.
The Hidden Dangers of Moss and Algae
Moss acts like a sponge, holding moisture against your roof 24/7. This constant dampness accelerates shingle breakdown, promotes wood rot in the decking below, and can eventually cause leaks. Algae creates unsightly black streaks that absorb heat, reducing your home's energy efficiency. Both organisms clog gutters, leading to poor drainage and water damage to fascia boards and siding.
The damage happens slowly but adds up quickly. What starts as a few patches of moss can lead to thousands of dollars in repairs if left untreated. Learn the key differences between moss and algae and how to treat them properly.
Our Professional Approach to Moss Removal
Unlike pressure washing companies that can damage shingles and void warranties, we use a proven gentle cleaning method that's safe for all roofing materials:
- Comprehensive Inspection: We assess moss growth patterns, identify vulnerable areas, and check for existing damage before any cleaning begins.
- Gentle Manual Removal: Soft-bristle brushes remove the bulk of moss without gouging or lifting shingles.
- Eco-Friendly Treatment: Our FDA-approved, biodegradable treatment kills remaining spores and prevents regrowth for 12-18 months.
- Preventative Protection: The treatment creates an inhospitable environment for moss and algae, keeping your roof cleaner longer.
Safe, Eco-Friendly Cleaning Solutions
We prioritize products that protect both your roof and the environment. Our cleaning solutions are biodegradable, plant-safe, and won't harm your landscaping, pets, or local waterways. We avoid harsh chemicals like chlorine bleach that can damage vegetation and corrode roofing materials.
Our low-pressure techniques also minimize water usage and prevent the shingle damage that high-pressure washing causes. This approach is not only environmentally responsible but also protects your roof's warranty.
Signs Your Roof Needs Professional Cleaning
- Visible Moss or Algae: Green moss patches or black algae streaks indicate active growth that needs treatment.
- Stained or Discolored Areas: Dark patches suggest mold, mildew, or algae compromising your roof's protective barrier.
- Debris-Filled Gutters: Moss and debris in gutters often indicates a larger roof cleanliness issue.
- Faded Curb Appeal: A dirty roof makes your entire home look older and neglected.
- Increasing Energy Bills: Dark algae growth absorbs heat, making your attic hotter and AC work harder.
- Recent Storm Damage: Heavy weather deposits organic material that promotes moss growth.
Choosing a Roof Cleaning Professional
Not all roof cleaning companies are created equal. Here's what to look for:
- Proper Licensing & Insurance: Verify current contractor licenses (ours: WA ALLSESC833JM, OR CCB# 253289) and liability insurance.
- Safe Cleaning Methods: Ensure they don't use high-pressure washing on shingles, which causes damage and voids warranties.
- Proven Track Record: Check Google reviews and ask for references. We're proud of our 685+ five-star reviews.
- Transparent Pricing: Get detailed written estimates with no hidden fees.
- Satisfaction Guarantee: Choose a company that stands behind their work.
The Cost of Waiting vs. Regular Maintenance
Professional roof cleaning costs a fraction of roof repair or replacement. A typical cleaning runs a few hundred dollars, while replacing a damaged roof can cost $10,000-$25,000 or more. Regular maintenance every 12-24 months prevents the compounding damage that leads to major repairs.
Clean roofs also boost energy efficiency by reflecting more sunlight, potentially lowering cooling costs. And when it's time to sell, a well-maintained roof is a major selling point that can increase your home's value.
Keeping Your Roof Clean Between Services
- Schedule Regular Inspections: Check your roof visually every few months, especially after storms.
- Trim Overhanging Branches: Reduce shade and debris by keeping trees pruned back from your roof.
- Maintain Clean Gutters: Clear gutters prevent water backup that promotes moss growth at roof edges.
- Consider Zinc Strips: These metal strips release moss-inhibiting compounds when it rains.
- Avoid DIY Pressure Washing: Leave roof cleaning to professionals to avoid damage.
Common Roof Cleaning Myths Debunked
- "Rain keeps my roof clean." Rain washes away loose debris but can't remove moss, algae, or established growth. It actually helps moss thrive.
- "Pressure washing is the best method." High-pressure washing damages shingles, removes protective granules, and can void your warranty.
- "Moss gives my roof character." Moss might look quaint, but it's actively destroying your roof by trapping moisture against shingles.
- "I can clean it myself with bleach." DIY solutions often don't fully eliminate the problem and can damage landscaping. Professional treatment provides lasting protection.
Protect Your Investment with Professional Care
Your roof is one of your home's most important - and expensive - components. Professional cleaning and moss removal protects this investment, extends your roof's lifespan, and maintains your home's value. With our 100% satisfaction guarantee, there's no risk in giving your roof the care it deserves.
Ready to restore your roof? Contact us today for a free estimate and see why over 7,600 Pacific Northwest homeowners trust All Seasons for their roof cleaning needs.
Roof Cleaning Service Areas in Vancouver WA & Portland OR
All Seasons provides professional roof cleaning and moss removal throughout the Portland metro and Southwest Washington region. Our crews service homes and commercial properties in Vancouver WA, Portland OR, Camas WA, Washougal WA, Gresham OR, Beaverton OR, Tigard OR, Lake Oswego OR, Hillsboro OR, Oregon City OR, Ridgefield WA, Battle Ground WA, Troutdale OR, Milwaukie OR, West Linn OR, and Tualatin OR.
Each of these communities faces the same Pacific Northwest moss and algae challenges — heavy rainfall, overhanging tree canopy, and limited winter sunlight create ideal conditions for roof growth. Whether you are in the Felida neighborhood of Vancouver or the Pearl District of Portland, our licensed and insured teams deliver the same thorough 5-step process with our 100% satisfaction guarantee.
Enter your ZIP code at the top of this page to confirm we service your area, or contact us directly for a free estimate.
Related Services
Roof cleaning pairs naturally with other exterior maintenance services to keep your home fully protected:
- Gutter Cleaning — Clear debris and ensure proper drainage from roof to ground. Most customers bundle gutter and roof cleaning for complete protection.
- Gutter Guard Installation — Reduce future debris buildup and extend the time between gutter cleanings.
- Pressure Washing — Clean driveways, sidewalks, patios, and siding to match your freshly cleaned roof.
- Moss Prevention Treatment — Apply preventative treatment between full cleanings to slow regrowth and extend your roof's clean appearance.
The trusted choice for Pacific Northwest homeowners
Why Choose All Seasons for Roof Cleaning
Trust & Reliability
With 10+ years and 7,600+ satisfied customers, we've earned our reputation. Clients return year after year, confident they'll receive the same high-quality service.
Expert Quality
Our skilled crews deliver workmanship that impresses and holds up over time. We use professional-grade equipment and proven techniques for lasting results.
Fair Pricing
We offer competitive, transparent pricing so you can enjoy top-tier service without stretching your budget. No hidden fees or surprise charges.
100% Satisfaction Guarantee
We're not happy unless you are. If you're not completely satisfied with our work, we'll make it right - guaranteed.
Expert care for every roofing material
Types of Roofs We Clean
Shingle Roofs
Professional cleaning for asphalt shingle roofs using gentle, warranty-safe methods that protect your investment.
Tile Roofs
Specialized cleaning techniques for concrete and clay tile roofing that removes buildup without damaging tiles.
Flat Roofs
Expert cleaning for commercial and residential flat roof surfaces, preventing ponding and drainage issues.
Catch small problems before they become expensive repairs
Minor Roof Repairs While We're Up There
Vent Replacement
Cracked or damaged vents can lead to attic water leaks and costly damage. We replace flat top, 6-inch, and 4-inch vents to keep your home protected.
Boot Collar Replacement
Damaged boot collars around pipe penetrations are a common leak source. We replace worn collars to prevent water intrusion.
Exposed Nail Sealing
Exposed nails erode over time and create leak points across your roof. We identify and seal them with professional asphalt caulking.
Transparent pricing for Pacific Northwest homeowners
Roof Cleaning Cost in Vancouver WA
The cost of professional roof cleaning in Vancouver WA and the Portland OR metro area depends on several factors specific to your property. Understanding these factors helps you budget accurately and compare quotes from different providers.
Factors That Affect Roof Cleaning Price
- Roof size and square footage — Larger roofs require more time, materials, and labor. A 1,500-square-foot ranch home costs less to clean than a 3,000-square-foot two-story home.
- Roof pitch and accessibility — Steep roofs require additional safety equipment and slower, more careful work. Roofs with limited ladder access points also take longer.
- Number of stories — Two- and three-story homes require more ladder repositioning, safety rigging, and time than single-story properties.
- Severity of moss and debris — A roof that has not been cleaned in several years with heavy moss growth takes significantly more time than a maintenance cleaning on an annual schedule.
- Roof material — Asphalt shingles, cedar shakes, tile, and flat roofing each require different cleaning techniques and materials that can affect pricing.
Typical Price Ranges
Most residential roof cleanings in the Vancouver WA and Portland OR area fall within these ranges:
- Single-story home (1,000–1,800 sq ft) — $300 to $500
- Two-story home (1,800–2,800 sq ft) — $450 to $700
- Large or multi-story home (2,800+ sq ft) — $600 to $900+
These estimates include our full 5-step process: inspection, gentle moss removal, eco-friendly treatment application, debris cleanup, and a post-cleaning condition report.
Save With Bundled Services
Combine roof cleaning with gutter cleaning, pressure washing, or gutter guard installation to receive a multi-service discount. Bundling is the most cost-effective way to maintain your entire home exterior in one visit.
Ready for an exact quote? Request your free estimate — we provide transparent, itemized pricing with no hidden fees.
Still Have Questions?
Our team is ready to answer your questions and provide a custom quote.
Contact Us Today