Fast, Reliable Chimney Repair Across Markham
Chimney repair in Markham typically runs $350-$2,800 depending on whether you need mortar repointing, a partial rebuild, or a full liner replacement, and most jobs are completed in a single visit with upfront pricing. We answer calls with a live person 24 hours a day, and our technicians usually reach Markham homes within 45 minutes to an hour during business hours. Call (888) 289-6055 for a free estimate.
We’ve been working on Markham chimneys since the early 1980s, back when many of these homes were only twenty years old. Now they’re sixty, seventy, or more, and the same patterns show up again and again: cracked clay flue tiles, spalled brick faces, mortar turned to powder, and water stains on ceilings that trace back to a crown that failed years ago. Our Chimney Repair team knows the 60428 zip code well, from the ranches along 159th Street to the Cape Cods near Pulaski Road. We don’t need a map to find you, and we don’t need to guess at what’s wrong once we’re there.
Why Hearthstone Chimney Co. of Chicago Is Markham’s Preferred Chimney Repair Company
Markham homeowners tend to stay put. They’ve raised families in these houses, paid off the mortgage, and they plan to live out their years in the same rooms where they started. That kind of customer doesn’t want a hard sell. They want someone who will look at the chimney, explain what they see, and fix only what needs fixing. We’ve built our reputation in Markham on exactly that approach for over 42 years.
Our Level-2 camera inspections end with photos you can see and a plain-English verdict. No jargon, no scare tactics. If the flue is cracked, we show you the crack. If the crown is spalled, we measure the spall. Every finding is documented like an engineer, explained like a craftsman. The 90-Day Done Right Promise backs every job in writing with no arguing. If it’s not right, we come back. That’s the Keystone Standard, and it’s been our way since 1984.
A live person answers our phones 24/7. Not a voicemail, not a callback queue. When a Markham customer calls at 6 AM because water is dripping through the ceiling near the chimney, someone picks up. Our background-checked, uniformed technicians complete most jobs in a single visit, and the price we quote is the price on the invoice. A square deal: no surprises on the bill.
Our Chimney Repair Services in Markham
Chimney Rebuilding
Some Markham chimneys have simply reached the end of their service life. Sixty-plus years of freeze-thaw cycles, combined with flue oversizing from old coal-to-gas conversions, leaves the entire structure compromised. We rebuild from the roofline up or perform partial rebuilds where the lower stack is sound, using professional-grade materials and matching existing brick where possible. A full rebuild in Markham typically runs $2,200-$4,500, while partial rebuilds start around $1,400.

Tuckpointing & Mortar Repointing
The mortar joints in Markham’s post-war masonry take a beating. Prevailing northwest winds off the open prairie drive rain and snow into every hairline crack, and when temperatures cycle above and below freezing dozens of times each winter, that water expands and shatters the bond. Tuckpointing, where we grind out failed mortar to proper depth and repack with color-matched masonry cement, is often the most cost-effective way to extend a chimney’s life. In Markham, expect $450-$1,200 for typical ranch-home repointing, depending on access and joint condition.

Spalling Brick Repair
Spalling, the flaking and crumbling of brick faces, is epidemic in Markham’s older housing stock. Once the freeze-thaw cycle gets behind the brick face, the damage accelerates fast. We remove spalled units, source matching replacement brick, and rebuild the affected courses. Isolated spall repair runs $350-$800 in Markham. When spalling is widespread, we may recommend combining brick replacement with full repointing to stop the underlying moisture intrusion.

Chimney Waterproofing
Water is the enemy of every Markham chimney, and waterproofing is the defense that too many homeowners skip. We apply breathable, silane-siloxane-based sealers formulated for Chicago’s freeze-thaw zone, not the cheap film-forming products that trap moisture inside. Proper waterproofing of a typical Markham ranch chimney costs $400-$750 and should be refreshed every 7-10 years. For homes near the open prairie where wind-driven rain is severe, we often pair waterproofing with crown resurfacing using HeatShield or similar professional-grade materials.

Flashing Repair
Flashing, the metal junction where chimney meets roof, is a common leak point in Markham’s older homes. Original flashing was often tarred or caulked as a shortcut, and those repairs fail within a few seasons. We install proper step flashing and counterflashing, integrated with the roofing system, for $550-$1,100 depending on roof pitch and chimney width.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Markham
We don’t use builder-grade substitutes. For liner installations in Markham’s conversion-era chimneys, we specify DuraFlex stainless steel liners sized precisely to the appliance being served, not the oversized legacy flue. For crown resurfacing and smoke chamber parging, we use HeatShield cerfractory sealant, formulated to withstand the thermal cycling that destroys ordinary cement. When waterproofing Markham masonry, we select Gelco or Olympia Chimney products engineered for permeability in freeze-thaw climates. These parts are stocked locally, so we’re not waiting on freight while your chimney continues to deteriorate.
Common Chimney Repair Problems We See in Markham Homes
- Cracked clay flue tiles from decades of freeze-thaw. Markham’s 60-70-year-old chimneys have survived thousands of thermal cycles. The clay tiles inside eventually crack, split, or shift, creating gaps that let combustion gases and creosote leak into the masonry or living space. We find this on nearly every Level-2 inspection in 60428.
- Spalled brick and crumbling mortar from northwest wind exposure. Markham’s south suburban location leaves chimneys exposed to prevailing winds off the prairie. Moisture intrusion at the crown and cap accelerates mortar decay and brick face failure, especially on homes without proper chimney caps.
- Creosote buildup low in oversized, legacy flues. This is the Markham signature problem. A flue built for a coal furnace in 1955, now venting only an occasional fireplace fire, runs too cool. Flue gases condense and deposit creosote well below the typical inspection zone, creating a hidden fire hazard that standard cleaning often misses.
- Failed chimney crowns with interior water damage. The concrete crown at the top of the stack is supposed to shed water. In Markham, after sixty years of sun, frost, and wind, most crowns are cracked or washed out. Water follows the flue tile surround down into the attic, staining ceilings and rotting framing.
Pricing for Chimney Repair in Markham, IL
Here is what chimney repair costs in the Markham market as of 2024. These are real ranges based on jobs we’ve completed in 60428, not bait-and-switch estimates that balloon on the invoice.
| Service | Typical Range in Markham |
|---|---|
| Mortar repointing / tuckpointing | $450 - $1,200 |
| Spalled brick repair (localized) | $350 - $800 |
| Chimney waterproofing | $400 - $750 |
| Flashing repair / replacement | $550 - $1,100 |
| Crown resurfacing (HeatShield) | $650 - $1,400 |
| Stainless steel liner (DuraFlex, typical ranch) | $1,800 - $2,800 |
| Partial chimney rebuild | $1,400 - $2,800 |
| Full chimney rebuild (roofline up) | $2,200 - $4,500 |
What moves the number? Access difficulty, height, extent of hidden damage found during opening, and whether the flue requires resizing for the actual appliance being served. We provide no-hassle upfront pricing before any work begins. The number on the estimate is the number on the invoice. Call (888) 289-6055 for your free estimate.
Markham’s housing stock creates predictable repair patterns that actually help us quote accurately. When you’ve seen fifty chimneys from the same builder era, you know where the problems hide.
We Also Serve Cities Near Markham
Our technicians work throughout the south suburbs, including Chimney Repair in Markham and neighboring Hazel Crest, Posen, Harvey, and Country Club Hills. The same freeze-thaw patterns, the same post-war housing stock, the same conversion-era flue problems. If your chimney needs attention anywhere in this corridor, we’ll be there when we say.
Serving Markham, IL - Our Local Coverage Area
We’re based in the Markham area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Repair in Markham
It may not be safe without inspection. Most 1950s Markham chimneys were built for coal or fuel-oil furnaces, not modern fireplace use, and the oversized flue causes dangerous creosote buildup low in the stack where you can’t see it. We recently repaired a 1950s ranch on 159th Street where a reduction in fireplace use had left a 12×12 clay tile flue, originally for a coal furnace, with heavy creosote accumulation just above the smoke chamber. We installed an 8-inch DuraFlex stainless steel liner to correct the oversizing, eliminating the condensation problem and restoring safe draft. Call (888) 289-6055 to schedule a Level-2 camera inspection before your next fire.
A stainless steel liner installation for a typical Markham ranch home runs $1,800-$2,800, including proper sizing to the appliance, removal of the old clay tile if needed, and connection to the fireplace or insert. Gas conversions from legacy oil systems require precise downsizing to prevent the condensation problems that ruined the original flue. Call (888) 289-6055 for an exact quote - estimates are free, and we offer $50 off any repair over $250.
Probably not, if caught early. Crown resurfacing with HeatShield cerfractory sealant costs $650-$1,400 in Markham and can restore a sound structural base without rebuilding. If the crown has been leaking long enough to rot the top courses of brick, a partial rebuild from the damaged point upward may be necessary. We document everything with photos so you can see exactly what we’re seeing. Call (888) 289-6055 for a free inspection.
Yes, waterproofing is essential for Markham’s freeze-thaw climate, but only with a breathable silane-siloxane sealer, never a film-forming acrylic that traps moisture inside. We use professional-grade products from Gelco and Olympia Chimney formulated for permeability in severe freeze-thaw zones. Application on a typical Markham ranch chimney runs $400-$750 and protects for 7-10 years. Call (888) 289-6055 to schedule.
Seized cast-iron dampers in Markham’s 60-plus-year-old chimneys are rarely worth rebuilding. The pivot pins corrode, the throat plate warps, and even if freed, they seal poorly and leak heated air year-round. We typically replace them with a top-sealing damper installed at the crown, which seals far better, eliminates the corroded hardware, and includes a stainless steel cap. Replacement runs $450-$850 in Markham. Call (888) 289-6055 for an exact quote - estimates are free.
Written by the team at Hearthstone Chimney Co., serving Markham and Chicago’s south suburbs since 1984.