WETT Inspection Markham — Certified, Insurer-Accepted, 48 Hours
A WETT inspection in Markham costs $255–$565 and takes 60–120 minutes. A WETT-certified inspector documents the appliance, venting and clearances against CSA B365, and you get the signed report insurers and lenders accept — usually within 48 hours of the visit.
WETT Inspection — free inspection first, then a fixed quote
- Free on-site inspectionNo charge and no obligation to book
- $50 coupon toward the workApplied to any service you approve
- Same-day photo reportYou see exactly what we found
- Written fixed quoteApproved by you before anything starts
- Same-week appointmentsEvenings and weekends available
Every job is different, so we quote after seeing your chimney — the inspection is free and the $50 coupon comes off your final invoice.
What the job actually includes
- 1
Appliance and installation review
Make, model, listing, certification labels and installation method recorded against the manufacturer's instructions.
- 2
Clearance measurement
Combustible clearances, hearth extension and floor protection measured — the most common failure point on older installs.
- 3
Venting and flue examination
Full connector and flue review with a camera scan where access allows; in Unionville and Markham Village this is where unlined shafts get found.
- 4
Findings walk-through
Every deficiency shown to you on the spot, photographed, with what remediation would involve.
- 5
Signed report within 48 hours
WETT-certified, insurer- and lender-accepted PDF with photos and the certification number.
Markham housing stock, and what it means for wett inspection
Markham sits 23 km north-east of downtown Toronto, known for the heritage storefronts of Main Street Unionville and one of the most diverse food scenes in Ontario. For chimney and venting work that geography matters more than most homeowners expect: it decides how your system was built, how hard the weather works on it, and what a fair price looks like. The short version is that Markham is protected heritage masonry in Unionville and Markham Village where any visible repair has to match the original brick and joint profile, plus a very large post-2000 zero-clearance belt in Cornell and Wismer.
The older belt — Unionville, Markham Village, Thornhill and Buttonville — is full-masonry construction with clay-tile or, in the oldest cases, unlined brick flues. These are the homes where a routine visit most often turns up something structural, and where the repair has to respect the original brick and joint profile rather than being patched with modern mortar.
The Milliken Mills, Armadale and Middlefield belt is mostly exterior masonry chases built between the 1970s and the 1990s. Exterior chases run cold, so flue gases cool and condense sooner and deposits build faster than in an internal stack on identical usage. It is the single biggest reason two neighbours with the same fireplace can need very different service intervals.
The newer belt — Cornell, Wismer, Berczy Village and Angus Glen — is dominated by factory-built zero-clearance and direct-vent appliances. They are not miniature masonry chimneys and must not be treated as such: they need manufacturer-matched tooling, refractory panel and gasket inspection, and a technician who knows the listing, not a wire brush.
On top of the build type, Markham's flat, open north end sees hard freeze-thaw cycling, and heritage-district lime mortar absorbs far more water than modern Type N before it does. That is why the fault we write up most often in Markham is freeze-thaw joint erosion on heritage stacks and unused decorative flues left uncapped — and why we quote from the Markham address, not from a GTA-wide average.
Why Markham homeowners are asked for a WETT report
Three situations drive nearly every WETT request in Markham: an insurer renewing or writing a policy on a home with a solid-fuel appliance, a lender or buyer's condition during a sale, and a homeowner installing or changing a wood stove or insert.
Insurers are not looking for perfection. They are looking for a certified inspector's confirmation that the appliance is listed, installed to its instructions, vented correctly and clear of combustibles. Where a system fails, it is usually on clearances or on an uncertified or owner-modified install — not on the chimney itself.
In Markham specifically we see failures cluster around freeze-thaw joint erosion on heritage stacks and unused decorative flues left uncapped, plus hearth extensions that are too short for the appliance depth on pre-1980 installs in Unionville and Markham Village.
Level 1 or Level 2 — which one Markham buyers and insurers need
Level 1 is the standard: a visual inspection of readily accessible parts of the appliance, the connector and the chimney. It satisfies most Markham insurance renewals where nothing has changed and the system is in regular use.
Level 2 adds a camera scan of the flue's full internal length and a review of accessible attic, crawl space and roof sections. It is the right choice at a property transfer, after any appliance change, and after a chimney fire or a suspected one — and most Markham real estate conditions now specify it by name.
If you are unsure, tell us who is asking and why. We will book the level that satisfies them rather than the more expensive one by default.
Booking wett inspection in Markham
We are 23 km north-east of downtown Toronto here, roughly a 30-minute run, and Markham is a scheduled route for us rather than an occasional trip. No travel charge between Thornhill, Unionville and Cornell. Same-week booking is normal outside the October–December peak; in peak season expect seven to ten days unless the visit is a safety call, which we triage the same day.
Every quote is fixed before we arrive. You get the price from the appliance type, the flue count and the access, not an hourly rate that grows on the driveway. If we open the system and find something that changes the scope — a cracked liner, a failed crown, a blocked vent — you get photos and a revised written number before any additional work starts.
Landmarks help us schedule tightly: if you are near Main Street Unionville and the Markham Museum we can usually pair you with another Markham visit the same morning, which is how we keep the travel charge at zero.
On permits: City of Markham permits apply to rebuilds and new installs, and Heritage Markham review can apply to visible exterior masonry work in the Unionville and Markham Village districts. We tell you at the quote stage whether your job is a permit item, and we do not start structural work in Markham without that being settled in writing.
What GTA homeowners say
"Booked a sweep and WETT inspection before winter. Crew arrived on time, laid down drop cloths, and walked me through the report photo by photo. Fixed pricing, no upsell — exactly what was quoted."
— Sarah M.
"Cracked clay liner in our 1962 fireplace. They installed a stainless liner and new cap in one day and the draft is perfect. Warranty paperwork emailed the same evening."
— David R.
"Called for a raccoon in the flue. They removed it humanely, sanitized the smoke chamber, and installed a stainless cap. Fair price, no drama, and they even followed up a week later."
— Priya S.
Wett Inspection Markham — FAQs
How much is a WETT inspection in Markham?+
$255 for a Level 1 and up to $565 for a Level 2 with a full camera scan. Adding a second appliance in the same visit is $135.
How fast can I get the report?+
Usually within 48 hours of the visit; a 24-hour rush is $90 extra for closing-date pressure. Booking in Markham is normally same-week.
Will my insurer accept it?+
Yes. The report is issued by a WETT-certified inspector with the certification number on it, which is what Canadian insurers and lenders require.
What if the system fails?+
You get an itemised list of deficiencies with photos and costs. Fix them and the re-inspection within 90 days is $155–$225 rather than full price.
Do I need one for a gas fireplace?+
No. WETT covers solid-fuel appliances. Gas appliances fall under TSSA rules and need a licensed gas technician instead — we do both.
How long does the visit take?+
60 to 90 minutes for a Level 1, up to two hours for a Level 2 with a camera scan and attic or roof access.
Do you inspect all of Markham?+
Yes — no travel charge between thornhill, unionville and cornell, and we are 23 km from downtown Toronto so Markham is a routine route, not a call-out.
Is a WETT inspection legally required?+
Not by law. City of Markham permits apply to rebuilds and new installs, and Heritage Markham review can apply to visible exterior masonry work in the Unionville and Markham Village districts. In practice insurers, lenders and buyers require it, which makes it mandatory in effect.
Can you sweep at the same time?+
Yes, and the flue has to be clean to be inspected properly. Combined it is $400 instead of $450.
How long is the report valid?+
Most insurers treat it as current for 12 months, and buyers usually want one dated within 90 days of closing.
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