Roof Washing in Glenview, IL
Low-pressure soft washing for Glenview's asphalt shingle and cedar shake roofs. Removes algae, moss, and black streaks safely — waterproof seal for cedar shakes available. The Glen, Gallery Park, and all Glenview neighborhoods.
Roof Washing for Glenview's Asphalt & Cedar Roofs
Glenview has both roof types in abundance — standard asphalt shingles throughout the village and cedar shake roofs on many of The Glen's custom homes and older North Shore properties. We specialize in both.
Asphalt Shingle Soft Wash
Low-pressure cleaning removes black algae streaks, moss, and organic growth from asphalt shingles across Glenview. Preserves granule layer, protects manufacturer warranty, extends shingle life.
Cedar Shake Soft Wash
Gentle cleaning removes mold, mildew, moss, and grey weathering from cedar shake roofs — common in The Glen and older Glenview neighborhoods. Restores warm natural colour without pressure damage.
Waterproof Seal — Cedar Only
Applied directly after soft washing while cedar pores are open and clean. Penetrating waterproof sealant protects against moisture, UV, and Glenview's freeze-thaw cycles. Essential for extending cedar shake life.
Black Streak Removal
The dark streaks spreading across Glenview asphalt roofs are Gloeocapsa magma algae — not dirt. They feed on shingle limestone filler and spread spore-to-spore across the roof. Soft washing eliminates them completely.
Moss Removal
Moss holds moisture against roof surfaces — accelerating decay in both cedar shakes and asphalt. Particularly common in Glenview's more shaded lots near The Grove nature preserve and Gallery Park tree coverage.
Combined with Gutter Cleaning
We often combine roof washing with a gutter cleaning in a single visit. After the roof is washed, debris flows into gutters — cleaning immediately after makes practical sense and saves a second scheduling.
Cedar Shakes in The Glen. Algae on Every Block.
Two things make Glenview roofs distinctive: the prevalence of cedar shake roofs on custom homes, and the heavy algae growth driven by Glenview's extensive tree canopy and humid summers.
Cedar Shake Homes in The Glen
Many of The Glen's custom-built homes — developed on the former Naval Air Station grounds — feature cedar shake roofs. These premium roofs require specialist care: proper soft washing technique and waterproof sealing every 2–3 years to prevent wood decay.
Algae from 30,000 Trees
Glenview's 30,000+ parkway trees create heavy shade across residential blocks — exactly the shaded, moisture-retaining conditions where roof algae and moss thrive. Homes near Gallery Park, Wagner Farm, and The Grove see especially significant buildup.
Illinois Freeze-Thaw on Cedar
Unsealed cedar shakes absorb moisture in Glenview's wet spring and fall seasons. That moisture freezes in winter, expands inside the wood grain, and causes cracking and splitting. Waterproof sealing after cleaning is the most effective protection against this cycle.
How We Wash Glenview Roofs
Free Assessment
We assess your Glenview roof — type, condition, degree of algae or moss growth. Written quote before starting.
Property Protection
Plants and landscaping below the roofline are wetted and protected before cleaning solution is applied.
Soft Wash Application
Low-pressure professional cleaning solution kills algae and moss at the root. Rinsed from ridge to eave.
Cedar Seal (if applicable)
Waterproof sealant applied to cedar shakes immediately after washing — clean pores absorb it most effectively.
Roof Washing Across All of Glenview
We provide roof soft washing throughout Glenview — from The Glen's custom cedar shake homes near Gallery Park and Lake Glenview to standard asphalt shingle roofs in The Willows, along Willow Road, and throughout the established neighborhoods near Glenview Road and Milwaukee Avenue. Glenview's diverse housing stock — from post-war ranch homes to newer custom builds — means we see every roof type in the village.
Cedar shake roofs are particularly common in The Glen and in older homes along the North Shore that were built or renovated in the 1980s and 1990s when cedar shakes were the premium roofing choice. These roofs are beautiful but demanding — they need cleaning and waterproof sealing on a regular cycle to avoid the wood decay that shortens their lifespan. We're familiar with the specific cedar shake products installed in Glenview and know the right sealants to use.
For asphalt shingle roofs throughout Glenview, the black streak algae issue is nearly universal in areas with significant tree canopy. The shading along streets near The Grove nature preserve and the trail network around Gallery Park creates exactly the conditions where Gloeocapsa magma algae spreads fastest. Regular soft washing every 3–5 years prevents the buildup from degrading shingles and reduces the risk of premature roof failure.
Glenview Roof Washing Questions
No — soft washing uses low pressure with professional cleaning solutions, which is the only safe method for asphalt shingles. High-pressure washing strips granules from shingles, shortens roof life, and voids most manufacturer warranties. Our technique cleans thoroughly without touching the granule surface.
Cedar is a natural wood — once cleaned of moss, algae, and debris, the pores are open and absorbing moisture freely. Applying a waterproofing sealant right after cleaning drives into the clean wood and protects it from moisture infiltration, UV damage, and the freeze-thaw cycles that cause splitting and decay. It's the most effective time to apply it.
Most residential roofs take 2–4 hours for soft washing. Cedar shake roofs with the waterproof seal application take a full day — the sealant needs adequate dry time. We'll give you a time estimate with your free quote.
Every 3–5 years for asphalt shingles in the Chicago area. Cedar shake roofs benefit from cleaning and resealing every 2–3 years due to Illinois's moisture cycles. If you notice dark streaks (algae), green patches (moss), or grey discoloration (weathering), it's time to schedule.
Black streaks on asphalt shingles are caused by Gloeocapsa magma — a form of algae that feeds on the limestone filler in shingles. It spreads from spore to spore across the roof and causes premature shingle degradation. Soft washing removes it completely. Left untreated, it shortens your roof's lifespan significantly.
Yes — many homeowners combine roof washing with gutter cleaning in a single visit. After the roof is washed, debris flows into the gutters anyway — cleaning them immediately after makes practical sense. Just mention both services when requesting your estimate.
Yes — particularly in The Glen neighborhood and in older custom homes throughout the village. Many of The Glen's homes were built with premium cedar shake roofing. These roofs are distinctive and add significant curb appeal, but they require specialized soft washing and waterproof sealing every 2–3 years to maintain their appearance and structural integrity.
Yes — we can combine roof washing with driveway or siding power washing in a single visit. See our full power washing page for details on all surfaces we clean. Combining services in one visit is often the most efficient approach for Glenview homeowners.
Discounts & Savings
Senior, military & first-time customer discounts available on all services.
Senior Discount
Homeowners 65+ receive 5% off. Mention it when requesting your estimate.
Military Discount
Active duty, veterans & first responders receive 5% off. Thank you for your service.
First-Time Customer? Save 5%
Northbrook & North Shore Service Area
Request Your Free Estimate in Glenview
Tell us your roof type and we'll provide a clear written quote. No obligation, no pressure.