WindWind Damage & Chimney Tops
Cracked or loosened chimney tops rebuilt, crowns re-poured and caps mechanically fastened to resist the next gust.
- Emergency securing
- Top-course rebuilds
- Fastened caps
Open 24/7 · Boulder
Flatiron Winds, Red Sandstone& Cleaner FiresChimney and masonry repair for Boulder, Gunbarrel, Louisville, Lafayette and Longmont
Boulder sits right where the mountains meet the plains, and in winter that means sudden downslope windstorms that can tear caps off and crack chimney tops overnight. It's also a town built in stone, from the red Lyons sandstone of campus and Chautauqua to the Victorian brick of Mapleton Hill. And plenty of Boulder homeowners want fireplaces that burn cleaner or not at all. Our crew on Pearl East Circle handles all of it, and the phone is answered 24/7.
80301East Boulder shop
Lyonssandstone work
24/7live phones
Dusk call · Boulder
9:41
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Boulder Chimney
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What people text us
Delaminating stone, open jointsWater in
Reset, bedded right, repointedHolds for decades
Mapleton Hill · Chautauqua · The Hill
A town built of red rock and old brick
Sandstone has a grain
Lyons sandstone is layered. Laid on its edge it peels in sheets, so replacement stones go in on their natural bed.
Victorian brick on Mapleton Hill
1880s–1900s homes need soft mortar matched to the original, not modern hard mixes that crack old brick.
Landmarks review
Exterior work in Boulder's historic districts usually needs a Landmark Alteration Certificate. We prepare the photos and specs.
Stone that matches
We pick sandstone by color and texture so a patch doesn't stand out in a warm red wall.
Downslope wind events
When the wind comes off the Flatirons
Boulder sees some of the strongest winter gusts of any city in the country. Tall chimneys and loose caps take the hit. Here's what we do when you call during or after a windstorm.
SECURE
Make it safe
Loose bricks and dangling caps removed or tied down before they fall on a car, roof or person.
COVER
Keep weather out
Open flues and torn flashing get a temporary cover until permanent repairs are possible.
REBUILD
Stronger top
Damaged chimney tops rebuilt, with caps fastened to the flue and crown, not just pushed on.
DOCUMENT
Photos for insurers
Before-and-after pictures and a written estimate for your homeowner's claim.
Boulder County coverage
From the foothills to the Diagonal
We're on Pearl East Circle near Foothills Parkway, with quick routes to US-36 and the Diagonal Highway. Tap a town.
On the way toMapleton Hill
Around12 min
Pick a place
Live answer, any hour
Truck leaves Pearl East
Text before arrival
Inspect & estimate
Drive times from 4845 Pearl E Cir. CU game days, US-36 rush hour and snow can add time, so we'll confirm when you call.
Services
Chimney, stone and fireplace work in Boulder County
For Victorian brick, 1960s ranches in Table Mesa and newer homes out in Gunbarrel and Erie.
Wind
StoneSandstone Chimneys & Walls
Red sandstone chimneys, foundations and garden walls repaired with stones laid on their natural bed and joints matched to the original.
- Delaminated stone replacement
- Matched mortar color
- Retaining and garden walls
HistoricHistoric Brick Repointing
Lime-based repointing and brick replacement on Mapleton Hill, Whittier and downtown homes and buildings.
- Lime mortar
- Joint profile matching
- Landmarks paperwork
CleanerGas & Electric Conversions
Wood-burning fireplaces converted to gas inserts with properly sized liners, or prepared for electric inserts with the flue sealed off.
- Insert liners
- Flue sealing for electric
- Damper removal
LeaksFlashing & Leak Repair
Leaking chimney flashing replaced and counter-flashed into the brick, not just smeared with sealant.
- Step and counter flashing
- Crickets
- Water testing
SweepsSweeps & Inspections
Tidy sweeps, video inspections and written reports, including inspections before you buy or sell.
- HEPA vacuums
- Camera inspection
- Buyer and seller reports
Cleaner air, warmer house
Make the fireplace burn cleaner, or not at all
An open fireplace pulls warm air up the flue all winter, and Front Range air-quality advisories often discourage wood burning. Many Boulder homeowners choose one of these routes.
Top-sealing damper
A tight seal at the top of the flue stops drafts and keeps heat in when the fireplace is off.
Gas insert
Instant, clean flame and real heat output, vented through a new liner.
Electric insert
No combustion at all. We seal and cap the flue so it doesn't leak heat or let water in.
Keep the masonry
Any of these leaves your brick or stone surround in place.
Open flue all winterHeat lost
Sealed or convertedWarmer rooms
Are you really open 24/7?
Yes. A real person answers at any hour. Chimney tops damaged in a windstorm, leaks during snowmelt and smoke coming into the house all get a response. For fire, gas odor or a carbon monoxide alarm, get outside and call 911 first.
The wind cracked my chimney top. What now?
Keep people and cars away from below it and don't use the fireplace. We'll secure loose masonry, cover the flue, then rebuild the top and fasten a new cap.
Why is the sandstone on my house flaking?
Sandstone is layered. Stones set on edge, or joints repaired with hard mortar, let water in between the layers, and freezing splits them apart. We replace damaged stones on their natural bed with softer mortar.
Do I need landmark approval for chimney repair on Mapleton Hill?
Exterior work in Boulder's historic districts usually requires a Landmark Alteration Certificate. Like-for-like repairs are often reviewed quickly. We provide photos and material specs for your application.
Can you convert my wood fireplace to gas or electric?
Yes. For gas we inspect the flue and install a liner sized for the insert. For electric we seal and cap the flue so it stops leaking heat.
How do I stop cold air coming down my chimney?
A top-sealing damper at the chimney crown closes much more tightly than an old throat damper. It also keeps out snow and animals.
Where do you work?
Boulder neighborhoods including downtown, Mapleton Hill, University Hill, Chautauqua, North Boulder and Table Mesa, plus Gunbarrel, Longmont, Erie, Lafayette, Louisville and Superior.
Service area
Boulder and the eastern county
City neighborhoods and the towns along US-36 and the Diagonal.
- Downtown Boulder
- Mapleton Hill
- University Hill
- Chautauqua
- North Boulder
- Table Mesa
- Gunbarrel
- Longmont
- Erie
- Lafayette
- Louisville
- Superior
Wind, stone or a drafty flue. We pick up.
Boulder Chimney & Masonry is open 24/7 for chimney and masonry problems across Boulder County.
(720) 815-3189 Call Boulder Chimney
Boulder Chimney & Masonry
4845 Pearl E Cir suite 104
Boulder, CO 80301
(720) 815-3189
Open map →
Boulder, CO 80301
(720) 815-3189
Open map →
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