Chimney Repair Services We Provide
A chimney is a system, not a single component. The liner, the masonry, the crown, the cap, the flashing, the damper, the smoke chamber — they all work together, and a failure in one puts stress on the others. We repair all of them, and we diagnose which ones actually need attention so you’re not paying for work that isn’t necessary.
Chimney Liner Repair and Replacement
The flue liner is the interior channel that contains combustion gases and protects your home’s structure from heat transfer. Clay tile liners crack from age, thermal shock (especially after a chimney fire), and freeze-thaw exposure. Metal liners corrode over time, particularly in gas appliances where acidic condensation is more common.
We install stainless steel liner systems that restore full containment. For chimneys that have suffered a chimney fire, a new liner is not optional and it’s the only way to verify the flue is safe to use again. We also reline chimneys when homeowners switch fuel types (wood to gas, or vice versa), because different fuels require different liner specifications.
Crown Repair and Replacement
The crown is the concrete cap that covers the top of your chimney. It takes more weather punishment than any other component — direct sun, rain, hail, snow, and relentless freeze-thaw cycling. Small cracks get sealed with flexible crown coating. Crumbling or improperly built crowns get removed and replaced. We pour new chimney crowns with proper slope for water drainage, an overhang with drip edge, and a bond break at the flue tile so thermal expansion doesn’t crack the new crown from the inside out.
Chimney Flashing Repair
Flashing is the metal seal where your chimney meets the roof. It’s the most common source of chimney leaks, and a surprising number of “roof leaks” in Denver homes are actually flashing failures. Flashing can be damaged by wind, hail, thermal movement, or improper original installation. We repair and replace step flashing, counter flashing, and the critical cricket (saddle) behind chimneys on sloped roofs. Proper flashing work requires both roofing and chimney expertise and a roofer who doesn’t understand chimney systems often creates new problems.
Masonry Restoration
Tuckpointing, brick replacement, and structural repair of the chimney’s exterior masonry. Denver’s freeze-thaw cycles are the primary culprit here — water enters mortar joints, freezes, expands, and widens the gap a little more every cycle. We catch this at the repointing stage when possible, and rebuild sections when the damage is too far gone for joint work. Full details on our masonry repair page.
Chimney Cap Installation and Replacement
Single-flue caps, multi-flue full-cover caps, and top-mount damper caps in stainless steel and copper. A missing or damaged cap lets rain, animals, and debris into your flue. We install caps that fit correctly, mount securely, and hold up to Colorado’s high winds and hail.
Damper Repair and Replacement
Throat dampers warp from heat exposure and rust from moisture. Top-mount dampers can loosen or lose their seal. We repair what’s fixable and replace what isn’t. For homeowners with a failed throat damper, a top-mount damper is often the smarter replacement and it seals tighter, costs less to replace in the future, and doubles as a chimney cap.
Smoke Chamber Repair
The smoke chamber funnels combustion gases from the firebox into the flue. Older chimneys often have corbeled (stepped) smoke chambers with rough surfaces that trap creosote and create turbulence. We parge smoke chambers with refractory cement to create the smooth surface that modern codes require, improving draft performance and reducing fire risk.
Why Denver Chimneys Need More Repair
If you’ve lived in Denver long enough, you know what the weather does to everything exposed to it. Your chimney gets more exposure than your roof, your siding, or your deck. It sits above the roofline on all sides, taking full sun, wind-driven rain, hail, snow load, and temperature swings that can span 40 degrees in a single day.
The altitude compounds the problem for chimneys connected to wood-burning fireplaces. Less efficient combustion at 5,280 feet produces more creosote and more corrosive byproducts, which eat at the flue liner and smoke chamber from the inside while freeze-thaw works on the masonry from the outside. You’re fighting on two fronts, and annual inspection is the only way to stay ahead of it.
Our Repair Process
Every repair starts with a diagnosis. We don’t show up with a hammer and start swinging. Here’s how it works:
First, we inspect the chimney and identify every issue, not just the one that prompted the call. A homeowner who calls about a leak often has flashing damage, crown cracks, and mortar erosion all contributing to the same problem. Fixing only one of those means the leak comes back.
Second, we explain what we found in plain language. We show you photos when possible. We tell you what’s urgent, what can wait, and what it costs. No pressure, no manufactured urgency.
Third, we do the work. The right materials, the right techniques, the right order of operations. We clean up when we’re done and walk you through what was repaired.
Frequently Asked Questions About Chimney Repair In Denver
There’s no single answer because chimney repair covers everything from a $150 cap replacement to a $6,000+ partial rebuild. The cost depends entirely on what’s damaged and how extensive the work is. We provide a detailed quote after on-site evaluation.
Warning signs include water in the firebox or on the damper, white staining on exterior brick, crumbling mortar, a cracked or missing cap, visible cracks in the crown, and staining on interior walls or ceilings near the chimney. If you notice any of these, schedule an inspection.
Most exterior masonry work needs temperatures above 40°F for mortar to cure properly. Liner installation, damper replacement, flashing repair, and interior work can be done year-round. We’ll schedule appropriately based on the type of repair needed.
Storm damage (hail, wind, lightning) is typically covered by homeowner’s insurance. Normal wear and deterioration from age and freeze-thaw is generally not covered. We provide documentation for insurance claims when the damage qualifies.
Yes. Masonry chimneys require mortar, brick, and stonework. Prefabricated (factory-built) chimney systems use manufacturer-specific components that must match the original specs. We work on both types.
Minor repairs like cap installation or damper replacement are typically completed in one visit. Tuckpointing and crown work take a day or two depending on scope. Liner installation runs 1-2 days. Partial rebuilds can take several days. We provide a timeline with every quote.
If you haven’t had an inspection in the past year, yes. An inspection identifies everything that needs attention, which means repairs can be prioritized and bundled into a single project rather than addressed one at a time as new problems surface.
Related Chimney Repair Services
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Chimney Inspections — Level 1, 2, and 3 condition reports
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Chimney Sweep Services — Creosote removal with Level 1 inspection
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Masonry Repairs — Tuckpointing, brick replacement, and waterproofing
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Chimney Caps — Installation and replacement
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Wood Fireplace Repairs — Firebox, damper, and smoke chamber
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Gas Fireplace Repairs — Thermocouple, valve, and ignition system
Proudly serving Denver, Wheat Ridge, Lakewood, Arvada, Golden, Boulder, Littleton, Englewood, Aurora, Westminster, Centennial, Parker, and all of metro Denver.