Siding (Vinyl, Aluminum, Fiber-Cement)
Soft-wash lifts algae streaks and mildew film without forcing water behind panels.
House & Siding WashSoft-Wash • Decontamination • Insured
Algae & Mold Removal in Montreal & Laval
Expert wall decontamination near you — soft-wash for siding, stucco and brick that lifts algae, mildew and soot without damage. Biodegradable detergents, controlled run-off, and results that last through winter.
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Why Choose Our Algae & Mold Removal
Safe on surfaces. Serious on growth. Trusted across Montreal & Laval.
Surface-safe approach
Soft-wash for vinyl, aluminum, stucco & painted surfaces; calibrated pressure for brick and concrete.
Soft-wash for vinyl, aluminum, stucco & painted surfaces; calibrated pressure for brick and concrete.
Eco-mindful chemistry
Biodegradable detergents with proper dwell time. Landscaping pre-wet and run-off control.
Biodegradable detergents with proper dwell time. Landscaping pre-wet and run-off control.
Licensed & insured
Professional crews with PPE, cones/tape and tidy, respectful workflows.
Professional crews with PPE, cones/tape and tidy, respectful workflows.
Fast quotes
Share photos by text/email; we confirm scope and schedule quickly.
Share photos by text/email; we confirm scope and schedule quickly.
Longer-lasting results
Post-treatment that helps slow regrowth on problem walls and shady sides.
Post-treatment that helps slow regrowth on problem walls and shady sides.
Local experts
Methods tuned for Montreal soot, humidity and freeze-thaw cycles.
Methods tuned for Montreal soot, humidity and freeze-thaw cycles.
Surfaces We Decontaminate
From green algae on north walls to black mildew on shaded trim.
Brick, Block & Concrete
Measured pressure + detergents to lift organic growth from porous masonry and joints.
Brick & Masonry Cleaning
Stucco, Wood & Fences
Low-pressure application protects textured stucco and wood grain while removing growth.
Deck & Patio CleaningHow We Remove Algae & Mold (Safely)
Decontamination tuned to the surface — not a one-pressure-fits-all blast.
Soft-Wash & Rinse
- Low-pressure application for vinyl, aluminum, stucco & painted substrates.
- Measured pressure for brick, concrete & pavers; protect mortar and joints.
- Correct detergent dwell to break organic bonds; gentle rinse to finish.
- Optional post-treatment on north/east walls to slow regrowth.
Safety & Environmental Care
- Plants pre-wet/protected; run-off controlled and work zones kept tidy.
- PPE, cones/tape and signage for public areas and shared walkways.
- Off-hours scheduling for storefronts and multi-unit buildings.
- Licensed & insured; clear before/after documentation available.
Our 4-Step Decontamination Process
Clear expectations from quote to final rinse.
1Assess & Quote
Photos/site visit, growth severity, surface types and access confirmed.
2Prep & Protect
Cover sensitive items, pre-wet plants and isolate work area.
3Soft-Wash & Lift
Apply, dwell and rinse; calibrated pressure where appropriate.
4Final Check
Walk-through with you, touch-ups and simple aftercare tips.
Before & After Proof
Exterior decontamination results across Montreal & Laval.
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Algae & Mold Removal — Typical Pricing
Positioned just above the local average for specialist decontamination. Final price depends on size, severity, access and off-hours timing.
Single Wall / Elevation
$295–$545 per elevation
- Soft-wash application + gentle rinse
- Up to ~40–60 linear ft (typical side)
- Plant protection & tidy cleanup
Whole Home (Siding)
$525–$1,025 soft-wash
- All elevations, soffits & trim touch-ups
- Window frames rinsed; low-pressure only
- Post-treatment on shady sides
Commercial Facade
$495–$1,295 per frontage
- Brick/concrete/stucco storefronts
- Off-hours + cones/tape included
- Before/after documentation
Heavy growth, multi-story access, lifts or severe staining may require an on-site assessment.
Algae & Mold Removal — FAQs
Safety, methods and how long results last.
Is soft-wash safe for my siding or stucco?
Yes. We use low pressure with the correct dwell time so growth releases without forcing water behind panels or damaging stucco texture.
How long do results last?
Most homes stay clean for 1–3 seasons. Shady or damp sides benefit from an optional post-treatment to slow regrowth.
Are the detergents safe for plants and pets?
We pre-wet and protect landscaping, use biodegradable detergents, control run-off and rinse thoroughly after dwell.
Do you work off-hours for storefronts and condos?
Absolutely. We schedule evenings/early mornings and set cones/tape/signage to keep the public safe while we work.
Get Your Algae & Mold Removal Quote
Fast response • Montreal & Laval • Licensed & insured
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