Chimney Masonry Repair in Colorado
Professional chimney masonry repair across Denver, Fort Collins, and Colorado Springs. Family-owned since 1998 · Licensed & insured · Open 24/7.
About This Service
Masonry repair is the craft side of chimney work: cutting out failed mortar joints and repointing them, replacing individual damaged bricks, rebuilding wash courses, and restoring stonework — all matched to the original materials so the repair disappears into the chimney.
The mistake we fix most often is previous work done with the wrong mortar. Modern hard portland mixes against soft historic brick cause the brick itself to fail. We match mortar hardness, color, and joint profile to what your chimney was built with, which is why our repairs last.
Signs You Need Chimney Masonry Repair
- Open or recessed mortar joints between bricks
- Individual cracked, flaked, or missing bricks
- Previous patch jobs that are visibly failing
- Gaps where the chimney meets the roofline
How We Approach Masonry Work
Assessment with photos — you see exactly what's failing and why before any quote.
Failed material is removed to sound substrate; nothing gets buried under patches.
Repairs use matched mortar and units, tooled to your chimney's original profile.
The work area is protected with water repellent so freeze-thaw doesn't restart the cycle.
Why It Matters for Safety
A deteriorating chimney is a falling hazard above and a fire pathway within: open joints can expose framing to flue heat, and loose masonry sheds onto roofs and walkways. Structural chimney work isn't cosmetic — it's the building's tallest, heaviest, hottest component being kept trustworthy.
Maintenance Tips From Our Technicians
- Glance over exterior masonry each fall; sandy joints and flaking faces are early flags.
- Keep sprinklers from wetting the chimney — chronic wetting accelerates every failure mode.
- Re-apply breathable water repellent roughly every ten years.
- Address single-brick problems as single-brick problems; they don't stay that way.
Why Homeowners Choose Donovan Chimney & Fireplace
What makes Donovan Chimney & Fireplace different is boring and rare: we show up when scheduled, we explain findings in plain language with photos, and our pricing is set before the work starts. Twenty-five-plus years on the Front Range, fully licensed and insured, open around the clock.
Related Services
Frequently Asked Questions
Will the repaired area match the rest of the chimney?
Matching is most of the job. We blend mortar color and tooling style, and source compatible brick when replacement is needed — on most projects, you'll have to hunt to find the repair.
What causes mortar to fail in Colorado?
Water plus freezing. Mortar absorbs moisture, our climate freezes it dozens of times a season, and each cycle wedges the joint open a little more. Altitude UV then bakes the binder out of exposed joints, accelerating the process.
What areas do you serve?
We work throughout the Colorado Front Range — roughly 65 miles around each of our three bases in Denver, Fort Collins, and Colorado Springs, from the Wyoming line down to Pueblo and up into the mountain communities.
Request a Free Estimate
We're open 24/7. Fill this out and we'll get right back to you — or call 720-310-3798.
Book Chimney Masonry Repair Today
We serve Denver, Fort Collins, Colorado Springs, and every community around them — see the full service area list.
Emergencies don't keep business hours and neither do we: our phone answers 24 hours a day, 7 days a week.