Direct answer
Toronto Chimney Pros is the top-rated chimney company serving Markham, covering all 30 neighborhoods with WETT & CSIA certified technicians, 4.9★ Google rating (512+ reviews), $5M liability insurance, fixed-price written quotes, and a 5-year workmanship warranty. Services include sweeping ($189+), inspection ($149+), WETT reports ($249+), and full masonry repair. Same-week booking standard; next-day common in denser neighborhoods.
Chimney service in Markham, explained by someone who works here
Located 23 km northeast of downtown Toronto, known for its historic Main Street Unionville and one of the most diverse food scenes in Canada. That distance matters more than most homeowners expect. A crew that has to cross the city twice in a day will quote you a travel premium, arrive late in a four-hour window, and rush the roof work to make the next stop. We run Markham on dedicated route days, which is why we can hold a fixed price with no travel surcharge anywhere inside the municipal boundary and give you a two-hour arrival window instead of a vague afternoon promise.
Local knowledge shows up in the diagnosis, not the brochure. Around Main Street Unionville and Markville, we already know what the housing stock looks like: 1970s originals in Thornhill and Milliken alongside large post-1995 builds in Cornell, Cathedraltown and Wismer. Newer Markham builds run tall two-storey great-room chimneys with metal chases — cap corrosion and chase-top leaks dominate. Unionville and old Markham Village carry heritage brick that needs matched mortar. A technician who has been on fifty roofs in Markham in the last year opens the conversation knowing which three failures are likely — instead of selling you the one service they happen to be trained on.
We serve all 30 named Markham neighbourhoods, including Unionville, Markham Village, Milliken, Berczy Village, Cathedraltown, Cornell, Wismer, Greensborough and everything in between, plus the surrounding York Region communities. Same-week booking standard; next-day common in denser neighbourhoods, and emergency calls — water entering the flue, a gas smell, an animal in the chimney, or a post-fire assessment — are dispatched ahead of scheduled work.
Why Markham chimneys fail — the three-part pattern
Markham sits far enough from the lake to run colder overnight lows than downtown, so freeze-thaw crown cracking shows up a year or two earlier here than on the lakeshore. The mechanism is boring and relentless: water finds a hairline crack in the crown or an open mortar joint in October, freezes overnight, expands roughly 9%, and levers the crack a fraction of a millimetre wider. Repeat that a hundred times over one Markham winter and a hairline becomes a gap you can slide a business card into. By the second or third season the water is past the crown and into the chimney's core, where it starts pushing brick faces off — that is spalling, and spalling is the point where a $400 repair becomes a $4,000 rebuild.
The second failure is the cap and chase cover. Markham combines newer subdivisions with mature neighborhoods, so chimney work ranges widely — from cap replacements on 15-year-old builds to full crown rebuilds on 1970s homes. Galvanised caps rust through in eight to twelve years around here; a flat chase cover with no cross-break ponds water and corrodes faster. Once the cap is gone, rain goes straight down the flue and hits the damper and smoke shelf, and you get the classic Markham symptom homeowners describe as "a smell like a wet ashtray after it rains."
The third is creosote. Unseasoned firewood, a cool flue, and short smoky burns lay down glazed third-degree creosote that no brush removes — it needs a rotary chain or a chemical modifier first. This is the failure that actually starts fires, and it is the reason NFPA 211 and every Ontario insurer want an annual inspection on any actively used solid-fuel appliance. If your fireplace in Markham has been burning for two seasons without a sweep, it is overdue rather than fine.
Chimney services we provide across Markham
Every service below is available at every Markham address, with the same fixed-price quoting and the same 5-year workmanship warranty. Prices shown are the Markham starting point for a standard scope.
Chimney Cleaning in Markham
Professional chimney sweep that removes creosote, soot, and blockages to keep your fireplace safe and efficient.
From $185 · 60–90 min →
Inspection in Markham
Camera-assisted Level 1 and Level 2 inspections identifying safety hazards before they cost you.
From $146 · 45–60 min →
WETT Inspection in Markham
WETT-certified inspection reports accepted by every major insurer in Ontario.
From $244 · 60–90 min →
Repair in Markham
Full-service masonry and flue repair — crowns, flashings, liners, and firebox restoration.
From $343 · 2–6 hrs →
Crown Replacement in Markham
Full chimney crown rebuild — the concrete cap that seals the top of your chimney against water, freeze-thaw damage, and structural decay.
From $882 · 4–8 hrs →
Cap Install in Markham
Stainless-steel and copper chimney caps installed to stop water, animals, and downdrafts.
From $270 · 60 min →
Cap Replacement in Markham
Full chimney cap replacement — swap out rusted, missing, or poorly fitted caps with a custom stainless-steel or copper cap built for Ontario weather.
From $441 · 1–2 hrs →
Liner Install in Markham
UL-listed stainless-steel liner installations that bring old chimneys up to modern safety code.
From $1421 · 1 day →
Tuckpointing in Markham
Chimney brick tuckpointing and masonry restoration matched to your original mortar profile.
From $637 · 1–2 days →
Waterproofing in Markham
Vapour-permeable waterproofing that stops water damage without trapping moisture in the brick.
From $387 · 2–3 hrs →
Animal Removal in Markham
Humane removal of squirrels, raccoons, birds, and bats from your chimney flue.
From $191 · 60–90 min →
Damper Repair in Markham
Damper repair, replacement, and top-mount energy damper installation to slash heating bills.
From $221 · 60–90 min →
Fireplace Repair in Markham
Firebox, refractory panel, and hearth repairs that make a failing fireplace safe to burn again.
From $244 · 2–4 hrs →
Gas Fireplace Repair in Markham
Licensed gas fireplace service — pilot faults, ignition failures, thermocouples, valves, and annual tune-ups.
From $215 · 60–120 min →
Wood Stove Install in Markham
Code-compliant wood stove installs with WETT certificate — clearances, hearth pad, and full chimney system.
From $1460 · 1 day →
Insert Install in Markham
Wood, gas, and pellet insert installs that turn a heat-losing open fireplace into a real heater.
From $1264 · 1 day →
Chimney Rebuild in Markham
Partial above-roof and full-stack chimney rebuilds when repointing is no longer enough.
From $2401 · 2–4 days →
Chimney Removal in Markham
Safe above-roof or full chimney removal with weathertight roof close-in and full debris haul-away.
From $1127 · 1–2 days →
Leak Repair in Markham
Water-entry diagnosis and repair — crown, cap, flashing, and masonry, found by hose test not guesswork.
From $342 · 2–5 hrs →
Flashing Repair in Markham
Step and counter-flashing replacement — the fix for the most common chimney leak in the GTA.
From $387 · 3–5 hrs →
Repointing in Markham
Joint raking and repointing with matched mortar — the fix that stops freeze-thaw before a rebuild is needed.
From $676 · 1–2 days →
Creosote Removal in Markham
Stage 2 and Stage 3 glazed creosote removal — chemical treatment plus rotary work a standard sweep can't touch.
From $342 · 2–4 hrs →
Smoke Chamber Parging in Markham
Smoothing the corbelled smoke chamber to code — the fix for a fireplace that smokes into the room.
From $578 · 3–6 hrs →
Chase Cover in Markham
Custom stainless chase covers for prefab chimneys — the fix for rust streaks down the siding.
From $676 · 2–4 hrs →
Gas Conversion in Markham
Wood-to-gas fireplace conversions — gas line run, appliance set, and B-vent or direct-vent termination.
From $872 · 1 day →
Chimney Relining in Markham
Insulated 316Ti stainless relining for cracked clay tile flues — the repair that makes an old chimney insurable again.
From $1656 · 1 day →
Dryer vent, eavestrough and roofing work in Markham
The same crews and the same ladders handle the rest of the exterior. Booking two services on one visit in Markham avoids a second mobilisation and usually takes about 15% off the second line item — the most common pairing here is a chimney sweep with a dryer vent clean in the fall, or an eavestrough clean with a roof and flashing check before the first freeze.
What chimney work actually costs in Markham (2026)
These are real Markham numbers, not national averages. A standard sweep with a Level 1 inspection is $185–$296. Access is what moves the price, not the work: a bungalow with a walkable roof and driveway parking sits at the bottom of the band, while a three-storey with a steep pitch, a rear-lane approach or a heritage stack sits at the top, up to $482.
| Service in Markham | Typical range | Time on site |
|---|---|---|
| Chimney Cleaning | $185 – $296 | 60–90 min |
| Inspection | $146 – $234 | 45–60 min |
| WETT Inspection | $244 – $390 | 60–90 min |
| Repair | $343 – $549 | 2–6 hrs |
| Crown Replacement | $882 – $1,411 | 4–8 hrs |
| Cap Install | $270 – $431 | 60 min |
| Cap Replacement | $441 – $706 | 1–2 hrs |
| Liner Install | $1,421 – $2,274 | 1 day |
A defensible Markham quote itemises labour hours, materials with brand names, disposal and haul-away, permit fees where they apply, and a named warranty term. Anything lumped as "shop supplies" over 5% of the total is worth a question. Deposits above 20%, cash-only discounts and verbal-only pricing are the three reliable red flags — any one of them is a pass, regardless of how good the number looks.
Permits, codes and inspections in Markham
Chimney work in Markham falls under the Ontario Building Code §9.22 for masonry chimneys, CSA B365 for solid-fuel appliance installation, and the WETT SITE inspection scopes that insurers rely on. Cleaning, inspection, cap replacement and cosmetic repair are permit-exempt. Structural masonry, a rebuild, a liner replacement or a new appliance installation generally require a permit from City of Markham Building Standards.
The three credentials that carry weight with Markham adjusters, real estate lawyers and condo boards are WETT SITE-Comprehensive, CSIA certification, and live WSIB clearance. We attach all three plus a $5M liability certificate to every quote on request. If you are buying or selling in Markham, the WETT report is the document that closes the condition — it is worth ordering before the inspection deadline rather than after.
The Markham seasonal calendar
September to November is the booking peak and the right window: dry roofs, unlit appliances, and enough time to fix whatever the inspection finds before the weather closes in. December to March is emergency and interior season — cap failures, downdraft complaints, animal intrusion and water in the firebox. Roof-side scopes get rescheduled free of charge when Markham weather does not cooperate.
April and May is the recovery window, when the winter's freeze-thaw damage is visible and pricing is softest — typically 10–15% below fall rates. June to August is the right time for the big scopes: rebuilds, liner installations and waterproofing all need dry, warm masonry to cure properly, and summer is the only season that reliably delivers it in Markham.
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Every Markham neighbourhood we cover
No travel surcharge applies to any address below, and each neighbourhood has its own coverage page with local access notes.
Markham chimney service FAQ
How much does chimney cleaning cost in Markham?+
A standard single-flue sweep in Markham runs $185–$296, including a Level 1 visual inspection and a written report the same day. Multi-flue stacks, heavy creosote glazing, or roof-access work on steep or three-storey rooflines push the top end toward $482. We quote a fixed price before we start — the number you approve is the number you pay, and there is no travel surcharge anywhere in Markham.
Do you actually service all of Markham, or just the parts closest to Toronto?+
All of it. Markham sits 23 km northeast of our downtown Toronto dispatch, roughly 30 minutes, and we cover all 30 named neighbourhoods — from Unionville, Markham Village, Milliken outward. Same-week booking standard; next-day common in denser neighbourhoods.
How fast can you get to a Markham address in an emergency?+
Active water in the flue, a gas smell, an animal in the chimney or a post-fire assessment jumps the queue. On weekdays we aim to have a technician at a Markham address within 90 minutes; weekends run closer to three hours. Everything else books into the normal same-week booking standard; next-day common in denser neighbourhoods rotation with a two-hour arrival window texted the morning of.
What makes chimneys in Markham fail?+
Markham sits far enough from the lake to run colder overnight lows than downtown, so freeze-thaw crown cracking shows up a year or two earlier here than on the lakeshore. Newer Markham builds run tall two-storey great-room chimneys with metal chases — cap corrosion and chase-top leaks dominate. Unionville and old Markham Village carry heritage brick that needs matched mortar. In practice that means the crown and the cap are the first things we look at on a Markham property, then the flashing line, then the mortar joints on the exposed faces.
Do I need a permit for chimney work in Markham?+
Cleaning, inspection, cap replacement and cosmetic repairs are permit-exempt. Structural masonry, a full rebuild above or below the roofline, a liner replacement, or a new appliance installation generally require a permit from City of Markham Building Standards. We pull it as part of the job when it applies and hand you the closed permit with the final invoice — over-the-counter turnaround is typically 5–10 business days.
When is the best time of year to book in Markham?+
Late September to mid-November is the sweet spot: the roof is dry, the appliance has not been lit yet, and any repair we find still has a weather window. Spring (April–May) is the second-best window and usually 10–15% cheaper because demand drops. Once snow loads onto Markham roofs, exterior scopes get weather-dependent and interior work takes priority.
Are you certified and insured to work in Markham?+
Yes — WETT SITE-Comprehensive, CSIA-trained technicians, $5M commercial liability and active WSIB clearance. Certificates go out by email before the appointment on request, which is what Markham condo boards, property managers and insurance adjusters usually want 48 hours ahead of the visit.
What does chimney repair cost in Markham versus a rebuild?+
Targeted repair — repointing a few courses, a new crown, a cap and flashing — typically lands between $441 and $706 on a Markham home. A full rebuild above the roofline starts near $1147. The dividing line is whether the brick itself is spalling: sound brick with failed mortar gets repointed; brick that crumbles under a screwdriver gets rebuilt, because repointing failed brick just buys one more winter.
Will my home insurance cover chimney damage in Markham?+
Sudden events — a storm, an animal, an appliance failure, a chimney fire — are usually covered minus your deductible. Gradual freeze-thaw deterioration is almost always excluded. A written professional assessment with photos filed before your first adjuster call materially improves the outcome; we turn those around in 48 hours and send them to the carrier directly.
Do you handle heritage and older homes in Markham?+
Yes. Markham housing stock is 1970s originals in Thornhill and Milliken alongside large post-1995 builds in Cornell, Cathedraltown and Wismer, and older masonry needs lime-based mortar matched to the original mix rather than a modern high-Portland blend. The wrong mortar is harder than the surrounding brick and visibly cracks the brick face within two or three winters. We pre-source matched materials before booking heritage scopes.
Do you do dryer vents, eavestroughs and roofing in Markham too?+
We do. The same crews handle dryer vent cleaning and re-routes, eavestrough cleaning, gutter and gutter-guard installation, downspout work, roof cleaning, winter roof prep and ice-dam prevention across Markham. Bundling a chimney sweep with a dryer vent or eavestrough clean on the same visit saves the second mobilisation and typically 15% off the second service.
How do I get a quote for a Markham property?+
Text or email two photos — one wide shot of the roofline showing the chimney in context, one close-up of the concern — and we will send a written price band the same day. On-site quotes inside Markham are free, take about 30 minutes, and come with a 30-day price hold and an itemised scope with brand-named materials.