Chimney Sweep & Repair in Longmont, CO
Homeowners in Longmont have trusted Donovan Chimney & Fireplace for chimney cleaning, repair, and fireplace service across Boulder County since 1998. Longmont's Old Town Victorians and midtown ranches carry generations of chimney history, and the St. Vrain valley's hail seasons are hard on crowns, caps, and flashing across the whole city. Whatever your system needs — from an annual sweep to a full rebuild — you get honest diagnosis, photos of what we find, and written pricing before work begins.
Open-plains wind, hail, and sun exposure
Out at Longmont's elevation (4,979 ft) on the open plains, chimneys stand fully exposed: prairie wind loads caps and covers year-round, hail seasons dent hoods and crack crowns, and unfiltered Colorado sun bakes sealants and flashing compounds brittle. The fixes are straightforward — wind-rated cap hardware, hail-checked crowns, and UV-stable sealants — but they need to actually be specified for these conditions, which builder-grade installs rarely are.
Why Longmont Homeowners Choose Us
We built Donovan Chimney & Fireplace on a simple bet: that Longmont homeowners would rather see the problem than take our word for it. Twenty-five years later, the camera-first, evidence-first approach is still what separates us — along with licensed technicians, transparent pricing, and true 24/7 availability.
Why Annual Inspections Matter Here
Most of the serious chimney problems we repair in Boulder County were visible — to a camera — a year or two before they became expensive. That's the entire case for annual inspection in Longmont: a modest yearly visit that converts future emergencies into present-day minor repairs, and gives you documentation your insurer and future buyer will both appreciate.
- City
- Longmont, CO
- County
- Boulder County
- Elevation
- 4,979 feet
- ZIP Codes Served
- 80501, 80503, 80504
- Getting To You
- Getting to you is simple: Longmont connects to our Denver base along CO-119 & US-287, a run our technicians make constantly. We schedule Boulder County visits in efficient route blocks, so appointment windows are tight and honest.
Chimney & Fireplace Services Available in Longmont
Every service below has its own detailed page. All of them are available to Longmont and the surrounding Boulder County area — residential and commercial, routine and emergency.
Longmont Chimney FAQs
How much does a chimney sweep cost in Longmont?
Most standard sweeps in the Longmont area fall in a consistent range that we'll quote precisely by phone — the honest answer depends on flue count, height, and condition. What's always true: the estimate is free, the price is set before work starts, and inspection findings come with photos.
How often should Longmont homeowners have their chimney cleaned?
Annually is the standard, per NFPA 211. If you burn frequently through the winter, consider a mid-season checkup as well — creosote accumulation tracks how much you burn, not the calendar.
Do you really serve Longmont?
Yes — Longmont sits inside our Denver service territory, which covers roughly 65 miles around our base. We run regular routes through Boulder County, so scheduling is straightforward and there's no long-distance surcharge.
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.
Schedule Service in Longmont
Call any time — literally. Our line answers 24/7, and Longmont sits well inside our Denver-area routes.
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