Restoring Colorado Chimneys the Right Way.
Tuckpointing, crown rebuilds, brick replacement, leak repairs, and full chimney rebuilds across Denver and the Front Range. Repairs that blend in, hold up, and last.
Expert Chimney & Masonry Repair for the Front Range
The biggest enemy of your chimney is the “freeze-thaw” cycle. Moisture from rain or melting snow seeps into the tiny pores of your brick and mortar. When the temperature drops below freezing at night, that water turns to ice and expands, slowly pushing the masonry apart. Over the years, this causes bricks to flake off, mortar to crumble, and structural issues to develop.
At Mile High Chimney, we focus on fixing these problems the right way. We don’t do temporary patch jobs with cheap caulk. We provide lasting, structural repairs that keep water out and ensure your fireplace is safe to use.
Warning Signs
6 signs your chimney needs repair.
Small problems get expensive fast. Here’s what to watch for — and why it matters before next burn season.
Crumbling or missing mortar
If you can see gaps between bricks or mortar falling out, water is already getting in. Tuckpointing now prevents brick replacement later.
Water stains on interior ceilings or walls
Any discoloration near where your chimney passes through the house. Usually a flashing failure, sometimes a crown crack. Always worth checking.
Cracked or spalling bricks
Bricks chipping, flaking, or breaking apart. Once spalling starts, it accelerates. Replacing a few bricks now is much cheaper than a rebuild later.
A chimney that leans
Even a slight lean is structural. Could be settling, crown failure, or footing issues. Get it inspected before it becomes a real problem.
Rust on the damper or firebox
Rust means moisture. Moisture in your firebox means water is coming down the flue. Often, a missing or failed chimney cap.
Smoke smell when you're not burning
Often, it means moisture is interacting with old creosote, or your damper isn’t sealing. Both are repairs worth doing before burn season.
What We Repair
Every kind of chimney repair, under one roof.
Whether it’s a small mortar fix or a full chimney rebuild, we handle it. with materials matched to your home and a warranty that backs it up.
Chimney Tuckpointing & Mortar
Crumbling, cracked, or missing mortar joints rebuilt with mix matched to the original. Stops water intrusion before it gets serious.
Chimney Crown Rebuild & Repair
The concrete cap that sits on top of your chimney. We patch hairline cracks or rebuild the entire crown to shed water properly again.
Chimney Brick Replacement
Cracked, spalled, or missing bricks swapped with replacements sourced to age and tone. The fix should disappear into the wall.
Flashing & Leak Repair
Most chimney leaks come from failed flashing where the chimney meets the roof. We re-seal it properly so water stops getting in.
Cap & Damper Repair
Rusted, damaged, or missing chimney caps and dampers — replaced or rebuilt. Stops animals, debris, and lost conditioned air.
Firebox Repair
Cracked firebricks, deteriorated mortar joints, damaged refractory panels. We rebuild the interior so it can hold a fire safely again.
Diagnostic Inspections
Not sure what’s wrong? We come out, run a video scan, take photos, and tell you exactly what needs work and what doesn’t.
Waterproofing
sealer applied after repair to keep water out while letting trapped moisture escape. Rated for Colorado climate.
Full Chimney Rebuilds
When the damage is too extensive for partial repair, we rebuild from the roofline up. structurally sound, code-compliant.
Don't let small damage become a rebuild.
When the damage is too extensive for partial repair, we rebuild from the roofline up. structurally sound, code-compliant.