Algae & Mold Removal Montreal | Expert Exterior Wall Decontamination Near You
Soft-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.

Licensed & insured crews Biodegradable detergents Soft-wash + calibrated pressure Off-hours for businesses
Before & after algae removal on siding in Montreal
Soft-wash mold removal from stucco wall
Facade decontamination on brick & concrete in Montreal
Swipe for results →

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.
Eco-mindful chemistry
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.
Fast quotes
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.
Local experts
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.

Vinyl and aluminum siding algae removal

Siding (Vinyl, Aluminum, Fiber-Cement)

Soft-wash lifts algae streaks and mildew film without forcing water behind panels.

House & Siding Wash
Brick and masonry cleaning in Montreal

Brick, Block & Concrete

Measured pressure + detergents to lift organic growth from porous masonry and joints.

Brick & Masonry Cleaning
Deck and fence algae removal

Stucco, Wood & Fences

Low-pressure application protects textured stucco and wood grain while removing growth.

Deck & Patio Cleaning

How 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.

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
Get Exact Quote

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
Fast Phone Estimate

Commercial Facade

$495–$1,295 per frontage
  • Brick/concrete/stucco storefronts
  • Off-hours + cones/tape included
  • Before/after documentation
Request Site Visit

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

Error: Contact form not found.