Home Buyer's Guide · Markham
Home Buyer's Guide: Roof Cleaning Checks for Markham Purchases
Here's how Markham homeowners actually approach roof cleaning in 2026, based on what our field crews see every week. Deeper freeze depths mean liner condensation and cap ice-loading. Below: what to expect, real numbers, and the questions worth asking before you book.
Quick answer
Home Buyer's Guide: Roof Cleaning Checks for Markham Purchases. Deeper freeze depths mean liner condensation and cap ice-loading.
Typical
$293–$469
Duration
2–4 hrs
Freeze-thaw
67/yr
Vetting a Markham contractor
Three checks that filter 90% of problems: (1) live WSIB clearance certificate, (2) named directors matching corporate filings, (3) two Markham references from the last 12 months you can call — not read.
Red flags on quotes
Verbal-only pricing, deposits above 20%, cash-only discounts, and unwillingness to itemise materials by brand are the top four. Any one is a pass.
What a defensible quote looks like
Written scope with photos, itemised labour + materials, 30-day validity, WSIB and liability certificate attached, and named workmanship warranty (5 years is the current bar for roof cleaning).
Common questions
What warranty do you offer on roof cleaning in Markham?
Five-year written workmanship warranty on materials and labour, transferable to a new homeowner within that window. Manufacturer warranties on any installed products pass through separately.
Do you service condos and heritage homes in Markham?
Yes. Condo boards in Markham typically want a scope letter and insurance certificate 48 hours out; heritage properties need product substitutions we pre-source.
Do you offer same-day roof cleaning in Markham?
Usually — call before 9am and we'll confirm a same-day arrival window inside Markham for most standard scopes.
How much does roof cleaning cost in Markham?
Most Markham jobs land between $293 and $469. Complex access or heritage masonry can reach $762. We quote fixed price after a free on-site scope.
When's the best time of year for roof cleaning in Markham?
Late September through mid-November with Markham averaging 148cm of snow starting December. Spring (April–May) is the second window and often 10–15% cheaper.
Are you WETT and WSIB certified?
Yes — WETT SITE-Comprehensive #C-46082, CSIA #12408, and active WSIB #7248194. Certificates emailed on request before the job.
Do you need a permit for roof cleaning in Markham?
Cleaning and inspection are permit-exempt in Markham. Structural masonry, liner replacement, or a new appliance install typically need one — we pull it as part of the job when required.
How long does roof cleaning take in Markham?
2–4 hrs is typical for a straightforward job. Bookings in dense downtown zones add 15–20 minutes for parking and staging.
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