Roof Cleaning and Repair in Montreal, QC

At Masters' Guild, we offer expert roof cleaning and repair services to maintain the health and appearance of your roof. Our skilled professionals use safe and effective methods to remove debris, moss, and algae buildup, preventing long-term damage. Additionally, we provide comprehensive repair solutions to fix leaks, replace damaged shingles, and address other issues that compromise your roof’s integrity.

Roof Cleaning and Repair in Montreal, QC: Soft wash roof cleaning (1,500–2,500 sq ft home) typically runs $370–$920 CAD in 2026; the other common jobs below range from $110 to $1,400, depending mostly on roof size and pitch. Post your job free on Masters' Guild to get offers from ID-verified local pros; payment is held until the work is done.

What roof cleaning and repair costs in Montreal, QC (2026)

Typical roof cleaning and repair prices in Montreal, QC (CAD, 2026) — low to high per job

Job	Typical range (CAD)	Unit
Soft wash roof cleaning (1,500–2,500 sq ft home)	$370–$920	per job
Moss removal (moderate to heavy)	$460–$1,400	per job
Moss prevention treatment (zinc/copper add-on)	$140–$280	per job
Gutter cleaning bundled with roof cleaning	$110–$280	per job
Overall roof cleaning job (typical range, all methods)	$370–$1,400	per job

Estimates: typical Canadian ranges adjusted for Montreal's regional price level (about 8% below the national average; estimate (Numbeo/Wise cost-of-living comparisons vs Canadian national average — Montreal runs below Toronto/Vancouver and below the national average overall, driven mainly by lower housing costs)). Get two or three quotes for your exact job.

Our Roof Cleaning and Repair Expertise in Montreal, QC

Thorough Roof Cleaning

Extend the lifespan of your roof with our specialized cleaning services. We use gentle yet effective techniques to clear moss, algae, and debris without causing damage to tiles or shingles. Regular cleaning not only improves curb appeal but also prevents costly repairs.

Roof Repair Services

From minor leaks to significant damage, our roof repair services address a variety of issues. Our team ensures timely and reliable repairs, restoring your roof’s durability and weather resistance.

Gutter Cleaning & Repair

Keep your gutters functioning properly with our gutter cleaning and repair services. We remove blockages and fix damaged sections to maintain optimal drainage, protecting your home from water damage.

Tile & Slate Roof Maintenance

Our tile roof maintenance and slate roof maintenance services preserve the structural integrity of your roof. We specialize in cleaning and repairing these delicate materials, ensuring long-term durability and performance.

Why Choose Masters' Guild for Roof Services?

Skilled Professionals: Our team is experienced in all aspects of roof cleaning and repair, providing safe and efficient solutions.
Comprehensive Care: From cleaning to repairs and gutter maintenance, we handle all your roofing needs.
Transparent Pricing: No hidden costs—just clear and fair pricing for every service.
Convenient Scheduling: Book roof services through our user-friendly app at a time that works for you.

Get Started Today!

Post your Roof Cleaning and Repair Quest through our app and connect with trusted professionals. Whether it’s cleaning, repairs, or gutter maintenance, Masters' Guild ensures quality service that protects your home.

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Roof Cleaning and Repair Services We Offer

Masters' Guild provides a comprehensive range of roofing solutions tailored to your needs:

Roof Cleaning: Removal of moss, algae, and debris to maintain roof health.
Roof Repair: Fix leaks, replace shingles, and address structural issues.
Gutter Cleaning & Repair: Clear blockages and repair damaged gutters.
Tile & Slate Roof Maintenance: Specialized care for tile and slate roofs.
Emergency Roof Repairs: Rapid response to urgent roofing issues.
Mobile-Friendly Platform: Easily book, track, and manage services through our app.

What's different about roof cleaning and repair in Montreal

Montreal's housing stock skews older and denser than most North American cities: about 36 percent of dwellings were built before 1960, and roughly two-thirds of residents live in buildings under five storeys — the classic Plateau-Mont-Royal or Mile End duplex and triplex "plex" with a flat or low-slope roof and an exterior spiral staircase, rather than a pitched shingle roof over a detached house. That flat-roof format shifts what roof cleaning and repair mean here: pooling water and membrane seams matter as much as moss, though moss and algae still take hold on the sloped roofs common in Verdun and Outremont.

Montreal winters run cold and snowy — January averages -9 to -10.5°C, annual snowfall runs around 210 cm, and repeated freeze-thaw cycles drive water into any crack in a roof membrane or flashing. Cleaning and moss removal go best from July through September, when growth is driest and easiest to kill before fall rain sets back in. Roof cleaning itself isn't a licensed trade in Quebec — a crew needs no specialty license — but actual repair work, like patching a membrane or replacing flashing, should go to a licensed general or roofing contractor, and crews should carry insurance and follow fall-protection practice on Montreal's flat plex roofs.

What moves the price in Montreal

Two-thirds of Montreal homes sit in flat-roof plex duplexes and triplexes, not pitched shingle roofs.
Roof cleaning needs no trade license in Quebec; actual repair work does, per Ville de Montréal.
Freeze-thaw winters, averaging -9 to -10.5°C in January, stress flashing on older, pre-1960 roofs.
Book in July-September, the driest window before fall rain feeds moss regrowth.

Licensing and permits in Quebec

Roof cleaning itself is unlicensed exterior-maintenance work in most US states and Canadian provinces (no specialty trade license required, though liability insurance and fall-protection compliance are standard for reputable crews); actual roof REPAIR work should be handled by a licensed general contractor or roofing contractor, and any electrical or structural issue uncovered during a job should be referred to the relevant licensed trade.

Residential building permits in Quebec are issued by the local municipality (ville/municipalité), not a provincial agency; each municipality sets its own bylaw thresholds. In Montreal, permits come from the Ville de Montréal — borough permit counters (Permits and Authorizations).

Tax: Labor on home repair/renovation services is a taxable supply in Quebec (no labor exemption) — GST/QST apply to the full invoice including labor, though a partial QST/GST rebate exists separately for new-housing construction or major renovations meeting specific value thresholds.

Best time to book in Montreal

Book in late summer (July-September): moss and algae are driest and easiest to kill, and treatment gets ahead of the fall rains that feed regrowth. Peak demand: July, August and September. Typical job length: 2-5 hours.

DIY or pro? Light DIY rinsing with a garden-hose-mounted cleaner can knock back mild surface algae, but moss removal, harness/roof-jack work on steep pitches, and any pressure washing are best left to a pro to avoid shingle damage, warranty voidance, or falls.

Areas we cover in Montreal

Pros on Masters' Guild take roof cleaning and repair jobs across Montreal neighborhoods including Plateau-Mont-Royal, Mile End, Griffintown, Outremont, Verdun, Rosemont-La Petite-Patrie, Villeray and Hochelaga-Maisonneuve.

Frequently Asked Questions

How much does roof cleaning cost in Montreal, QC?

A typical roof cleaning job in Montreal runs about CAD 400 to 1,500 depending on method and moss severity, with a straightforward soft wash on a 1,500-2,500-square-foot home closer to CAD 400 to 1,000; Quebec's combined GST and QST (14.975 percent) applies to the labor.

Do I need a permit for roof repair in Montreal?

Roof cleaning itself needs no permit, but building permits in Quebec are issued by the local municipality rather than a provincial agency; check with Ville de Montréal's borough permit counters before any repair that alters the roof structure or deck.

When is the best time to book roof cleaning in Montreal?

Late summer, from July through September, is the best window: moss and algae are driest and easiest to remove then, and treatment gets ahead of the fall rains that feed regrowth before Montreal's freeze-thaw winter sets in.

Sources: Our Roof Cleaning and Repair cost guide. Updated 2026-09-03.

We Also Serve These Nearby Satellite Cities

In addition to Montreal, QC, we also offer Roof Cleaning and Repair in nearby areas, including the following satellite cities:

Longueuil, QC
Brossard, QC
Terrebonne, QC
Repentigny, QC
Blainville, QC