When to Remove Roof Snow
Most residential roofs are rated for 1.0–1.5 kPa of snow load — roughly equivalent to 3–4 feet of light fluffy snow or just 1–2 feet of wet, heavy snow. A single heavy snowfall followed by rain or warm temps can exceed this — especially on flat-pitch sections, garages, and covered decks.
our cold climate creates a unique problem: heavy November snowfalls accumulate through winter without melting, and by February the cumulative load can approach structural limits. Add a warm chinook that turns the top layer to slush, and that weight increases dramatically.
Ice dams and heavy snow overhanging the eaves — both signs that roof snow removal is overdue.
Warning Signs — Don't Wait
- • Doors or windows sticking that weren't before
- • Visible sagging in roof line or ceiling drywall
- • Cracking or popping sounds from the attic or roof structure
- • Ice dams forming at the eaves with icicles exceeding 12 inches
- • Snow depth exceeding 60cm on flat sections or over garages
- • Water stains appearing on interior ceilings (ice dam leaking)
Understanding Ice Dams
Ice dams form when heat escaping through your attic melts snow on the upper roof. The meltwater runs down to the colder eaves where it refreezes, creating a dam. Water backs up behind the dam and seeps under shingles, causing interior water damage. In cold climates, ice dams are most common in January and February when the temperature differential between attic and exterior is greatest.
While improving attic insulation is the long-term fix, removing roof snow before ice dams form is the immediate solution. PWW removes snow load and existing ice dams safely using steam and calcium chloride methods that won't damage your roofing materials.
Our Safe Removal Approach
Roof rakes and plastic-edged shovels — no metal tools on your roof surface
2" of snow left on surface to protect shingles from scraping damage
Ice dam removal with steam or calcium chloride socks — no chipping or hacking
Ground-level snow management to prevent re-loading from drifting wind
Gutter and downspout clearing included to restore drainage
Before and after photos provided for your records and insurance
Safety-harnessed crew for steep-pitch roofs — no climbing risks for homeowners
Careful snow placement during removal to avoid blocking walkways or damaging landscaping
Insured & Safe
Full liability insurance covers any accidental damage. Our crew uses proper fall protection and safety equipment on every job — never free-climbing on icy roofs.
Emergency Service
If you see warning signs of structural stress, don't wait. We offer emergency same-day roof snow removal. Call our dispatch line and we'll prioritize your property.
Pricing Guide
Roof snow removal is quoted based on roof size, pitch, accessibility, and snow depth:
- • Standard bungalow (1,000–1,500 sq ft roof): $250–$400
- • Two-storey home: $350–$600
- • Garage or shop roof (standalone): $150–$300
- • Ice dam removal (add-on): $100–$250 depending on severity
- • Emergency same-day surcharge: 25% premium