Winter Prep Checklist · Ajax
Winter Prep Checklist: Ice Dam Prevention in Ajax
Here's how Ajax homeowners actually approach ice dam prevention in 2026, based on what our field crews see every week. Lake-effect moisture accelerates crown spalling and flashing rot. Below: what to expect, real numbers, and the questions worth asking before you book.
Quick answer
Winter Prep Checklist: Ice Dam Prevention in Ajax. Lake-effect moisture accelerates crown spalling and flashing rot.
Typical
$387–$620
Duration
3–5 hrs
Freeze-thaw
54/yr
Best month to schedule ice dam prevention in Ajax
Late September through mid-November is the sweet spot: Ajax averages 95cm of snow starting in December, so roof access closes fast. Spring bookings (April–May) are second-best and often 10–15% cheaper.
What breaks in each season
Winter: ice loading on the cap and flashing. Spring: freeze-thaw cracking in the crown from 54 annual cycles. Summer: UV degradation on any exposed sealant. Fall: raccoon and squirrel nesting before the cold snap.
The Ajax scheduling window
We aim to complete pre-winter ice dam prevention on Ajax homes by the last Saturday in October. Book by Labour Day for that window — after that we're scheduling against weather.
Common questions
Do you offer same-day ice dam prevention in Ajax?
Usually — call before 9am and we'll confirm a same-day arrival window inside Ajax for most standard scopes.
What warranty do you offer on ice dam prevention in Ajax?
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.
How long does ice dam prevention take in Ajax?
3–5 hrs is typical for a straightforward job. Bookings in dense downtown zones add 15–20 minutes for parking and staging.
Do you service condos and heritage homes in Ajax?
Yes. Condo boards in Ajax typically want a scope letter and insurance certificate 48 hours out; heritage properties need product substitutions we pre-source.
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.
When's the best time of year for ice dam prevention in Ajax?
Late September through mid-November with Ajax averaging 95cm of snow starting December. Spring (April–May) is the second window and often 10–15% cheaper.
How much does ice dam prevention cost in Ajax?
Most Ajax jobs land between $387 and $620. Complex access or heritage masonry can reach $1,007. We quote fixed price after a free on-site scope.
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.
Related guides