Roof Cleaning in Lexington, VA
ARMA-approved non-pressure roof cleaning in Lexington for asphalt shingle, original slate on downtown historic homes, and standing-seam metal.
Roof Cleaning in Lexington, the Lambert way
Roof cleaning in Lexington follows manufacturer-spec method on every shingle roof we touch. Every major asphalt shingle maker requires non-pressure cleaning (the ARMA method) to maintain warranty, and pressure-washing a shingle roof will void the warranty, strip granules, and shorten the roof's life. We run the ARMA method. There is no legitimate pressure-based alternative for shingle roofs, and we will not offer one.
The black streaks on north-facing roofs in Lexington are Gloeocapsa magma, a cyanobacteria that feeds on the limestone filler in asphalt shingles. It hits Valley roofs hard because of the limestone geology plus humidity. Lichen, the green-crusty patches, goes deeper than the streaking and needs longer chemical dwell to kill at the root. Our solution is buffered, low-pressure applied, dwelled, and rinsed. The method kills the biology at the source rather than bleaching the top layer.
Slate and metal are different
Downtown Lexington still has a significant number of original slate roofs and some early standing-seam metal installations. Slate cleaning requires a slate-trained roofer on the crew because walking slate without the right training breaks tiles. Metal roofs clean well but older panel coatings can be abraded by aggressive brushing. We scope each on site and will decline a slate job if we cannot bring a slate-trained technician. We would rather lose the work than crack your roof.
The crew on a Lexington roof is on Lambert's payroll, fall-protected with harness and rigging, trained on the roofing type, and insured for elevated work. No subcontractors climb your house. Equipment, anchors, chemistry, and rinse rig are ours. The lead walks the roof with you from ground level before and after.
Homes under dense canopy near Woods Creek and the older shaded blocks near campus regrow staining faster than sun-exposed roofs in the developments out toward Buena Vista, and that shapes how often we recommend a re-clean on the maintenance schedule.
Start a roof quote on our Lexington service area page. More on our roof cleaning service.
Lexington · Central Shenandoah Valley
Lambert Cleaning serves Lexington, VA as part of our regular Central Shenandoah Valley route. Same direct employees, same checklist, same standards whether we're cleaning a historic home downtown or a newer build on the outskirts.
What Lambert roof cleaning actually covers
Our roof cleaning service in Lexington is the same scope we run across the entire central Shenandoah Valley. The work is consistent because the team is consistent - same Lambert employees, same equipment, same standards regardless of which Valley town you're in.
For a full breakdown of what roof cleaning includes, check our main service page:
Why Lambert in Lexington
Three reasons Lexington customers consistently choose us over the alternatives:
Real local presence in Lexington
We're not a national franchise. We're not a hand-off to a sub-contractor. We're Lambert crews trained to the same standard, serving Lexington every week, headquartered thirty minutes or less from your front door.
Seven-year Valley's Favorite
Voted the Valley's Favorite Cleaning Company seven years running by readers of The News Virginian - including first place in 2025. Real neighbor-to-neighbor recognition, not paid advertising.
direct employees, never contractors
Every Lambert technician is a real employee - background-checked, uniformed, trained by us, paid by us. That matters when someone is in your Lexington home or business alone.
Bundled services, one team
Most Lexington customers add at least one other service on the same visit - carpet, windows, soft washing, gutters. Bundling saves on the trip charge and gets your whole home done at once.
Common questions about roof cleaning in Lexington
Will cleaning my Lexington home's asphalt roof void the shingle warranty?
No, as long as the method matches the manufacturer's specification, which is what we use. All major asphalt shingle manufacturers approve the ARMA non-pressure chemical method and specifically prohibit pressure washing. Our process is written to their specification: buffered solution, low pressure, dwell, rinse. If your warranty has specific language about cleaning solutions or methods, share it at the walkthrough and we will match the work exactly to the warranty requirements.
Can you clean an original slate roof on a downtown Lexington historic home?
Only if we can bring a slate-trained roofer to the crew. Slate is brittle and every step on a slate roof is a potential cracked tile unless the person walking it knows exactly how to load weight. We have a slate-trained technician we bring in for those jobs; when that person is available we quote the work, when they are not we will not attempt it. Other cleaners may offer slate cleaning without that training; we consider it unsafe and decline the work.
What does the 5-Year Streak Free Warranty cover?
If the black streaks or algae return within five years of our roof cleaning, we come back and re-treat at no charge. The warranty is also transferable - if you sell the home, the warranty transfers to the new owner. This is a genuine differentiator that no other Valley roof cleaning company offers.
Will soft washing damage my shingles?
No - soft washing is specifically the method shingle manufacturers recommend. It's a chemical clean applied at low pressure, not a high-pressure blast. High-pressure washing shingles is what damages roofs; our approach is the safe alternative.
Are those black streaks really algae?
Yes. Gloeocapsa magma is a species of algae that eats the limestone filler in modern asphalt shingles. It's alive, it's growing, and it's literally consuming your roof. The streaks are most visible on north-facing and shaded slopes where the algae thrives.
How long does roof cleaning last?
Soft-wash roof cleanings typically last 3 to 5 years before meaningful regrowth is visible. Some Valley homes get longer; homes under heavy tree cover with lots of shade may see earlier regrowth. Either way, it's dramatically longer-lasting than high-pressure cleaning.
Do you serve Lexington regularly, or is this a one-off?
We serve Lexington as part of our regular service area. Lexington is thirty-five minutes south of Staunton, and we've been cleaning homes in the W&L and VMI shadow for years. Historic downtown homes, faculty homes, the country places out toward Goshen,... You can read more on our Lexington service area page.
Other Lambert services available in Lexington
Bundle and save - most Lexington customers book multiple services on the same trip. Some of our most-requested combinations:
Maintenance Cleaning in Lexington
Recurring, reliable, weekly or whenever works. Your home, back to itself - without you lifting a finger.
Learn more →Deep Cleaning in Lexington
For when the regular isn't enough. Baseboards, fan blades, grout lines, and every corner you've been meaning to get to.
Learn more →Move-In / Move-Out Cleaning in Lexington
Start fresh. Leave spotless. We know exactly what landlords check - and we check it twice.
Learn more →Post-Construction Cleaning in Lexington
Drywall dust, adhesive haze, and every grain of sawdust - gone. Your renovation actually feels finished.
Learn more →Carpet Cleaning in Lexington
Bonnet agitation that lifts what regular vacuuming leaves behind. Dry in hours, not days.
Learn more →Upholstery Cleaning in Lexington
Sofas, sectionals, and dining chairs refreshed without soaking through the cushions or the frame.
Learn more →Area & Oriental Rug Cleaning in Lexington
In-home care for the rugs that anchor your rooms. Gentle, effective, and never off your floor for long.
Learn more →Tile & Grout Cleaning in Lexington
Grout lines returned to the color you forgot they were. Kitchens, bathrooms, entryways.
Learn more →Window Cleaning in Lexington
Streak-free inside and out. Valley pollen and mountain weather don't stand a chance.
Learn more →Soft Washing in Lexington
Solution-based exterior cleaning that lasts four to six times longer than pressure washing. Siding, stucco, screen porches, concrete, pavers, walkways, retaining walls - all of it.
Learn more →Ready to schedule roof cleaning in Lexington?
A free quote takes sixty seconds. Tell us what you need at your Lexington home or business and we'll get back to you the same business day.