Hiring Checklist · Markham
How to Hire for Downspout Extensions in Markham: 10-Point Checklist
Here's how Markham homeowners actually approach downspout extensions 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
How to Hire for Downspout Extensions in Markham: 10-Point Checklist. Deeper freeze depths mean liner condensation and cap ice-loading.
Typical
$87–$140
Duration
30–60 min
Freeze-thaw
67/yr
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 downspout extensions).
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.
Common questions
Do you offer same-day downspout extensions in Markham?
Usually — call before 9am and we'll confirm a same-day arrival window inside Markham for most standard scopes.
How much does downspout extensions cost in Markham?
Most Markham jobs land between $87 and $140. Complex access or heritage masonry can reach $227. We quote fixed price after a free on-site scope.
How long does downspout extensions take in Markham?
30–60 min is typical for a straightforward job. Bookings in dense downtown zones add 15–20 minutes for parking and staging.
When's the best time of year for downspout extensions 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.
What warranty do you offer on downspout extensions 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.
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.
What if it rains or snows on the booking day?
Roof-side work reschedules to the next dry window at no charge. Interior scopes (firebox, damper, appliance) proceed regardless.
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.
Related guides