Landlord Guide · Toronto
Landlord Guide: Gas Conversion Duties in Toronto
This is the working reference we hand to Toronto clients before we book a gas conversion appointment. 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
Gas Conversion in Toronto falls under Ontario Building Code §9.22 and CSA B365. Cleaning is permit-exempt; structural or liner work is not.
Typical
$828–$1,324
Duration
1 day
Freeze-thaw
70/yr
Certifications that carry weight
WETT SITE-Comprehensive, CSIA CCP or CCS, and WSIB clearance are the three signals adjusters and buyers accept without pushback. HRAI membership adds credibility on venting work.
Which rules apply
Ontario Building Code §9.22 (masonry chimneys), CSA B365 (solid-fuel installations), and WETT SITE-Basic scope cover most gas conversion work. Insurers typically ask for the WETT report post-completion; municipalities ask for permit sign-off pre-cover.
Permit thresholds in Toronto
Toronto building services generally require a permit for any structural masonry, liner replacement, or new appliance install. Cleaning, cap replacement, and cosmetic work are permit-exempt. Turnaround for over-the-counter permits is usually 5–10 business days.
Common questions
Do you need a permit for gas conversion in Toronto?
Cleaning and inspection are permit-exempt in Toronto. Structural masonry, liner replacement, or a new appliance install typically need one — we pull it as part of the job when required.
Do you offer same-day gas conversion in Toronto?
Usually — call before 9am and we'll confirm a same-day arrival window inside Toronto for most standard scopes.
What warranty do you offer on gas conversion in Toronto?
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 Toronto?
Yes. Condo boards in Toronto typically want a scope letter and insurance certificate 48 hours out; heritage properties need product substitutions we pre-source.
How long does gas conversion take in Toronto?
1 day is typical for a straightforward job. Bookings in dense downtown zones add 15–20 minutes for parking and staging.
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.
How much does gas conversion cost in Toronto?
Most Toronto jobs land between $828 and $1,324. Complex access or heritage masonry can reach $2,152. 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.
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