Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Chimney Sweep Across Boulder
A standard chimney sweep in Boulder runs $189 – $289, and the job includes something most companies leave out: a camera inspection of the flue liner and a written photo report you keep. If you live in a Mapleton Hill Victorian or a Whittier bungalow, your chimney was sized for wood when the house was built. If a gas insert went in later, the flue may not match the appliance, and a sweep becomes as much inspection as cleaning. Call (830) 251-4560 for a written quote before any work starts.
Why Flint Chimney Sweep Is Boulder’s Preferred Chimney Sweep Company
Flint Chimney Sweep has been part of the Garrison Partners family since 2002, and our Chimney Sweep crews service Boulder under The Garrison Standard. That means the same discipline is in place no matter which technician arrives: written price first, a documented scope, and a one-year written guarantee on any repair we perform. Hank Delano, who leads our operation, holds every job to that standard.
Boulder homeowners tend to be exacting about who they let into their homes, and we align with that. Our techs are background-checked and uniformed. You know the name and face before the appointment, and the number on the invoice is the number you approved before the truck pulled up. We do not move the price at the door. We do not upsell a liner because the brush pass was quick. We put the camera in and show you the condition, then let the evidence carry the conversation.
Scheduling for Boulder is coordinated from our Denver metro office, and our crews serve the city directly. A live person answers our phone around the clock, so you are not leaving a voicemail into a void on a cold February evening when your damper is sticking.
Chimney Maintenance in Boulder
Chimney maintenance in Boulder is not a once-a-decade thought. Boulder’s dry winters and pine-heavy foothills firewood push first-degree creosote to flake and drop into the smoke chamber faster than what we see in wetter Front Range towns like Fort Collins or Greeley. The creosote does not just coat the flue wall; it detaches in flecks that pile behind the damper and eventually block it. A homeowner burning ponderosa from a Nederland lot will see this build faster than someone burning boxelder from town.
Seasonal Readiness Check
Before burning season starts in October, an annual sweep clears what last season left and gives us a look at the crown and flashing. The freeze-thaw cycles here are brutal on masonry. Small crown cracks become open channels in spring, and water tracks the brick down into the smoke shelf. A maintenance visit catches that early. We inspect the flue, clear the smoke chamber, and document every finding with photos.
What It Costs
A maintenance visit combined with a standard sweep in Boulder typically runs $210 – $310. The number is settled in writing before we book, so you are not waiting on an estimator to “see what we find.” What we find changes what we recommend, not what you owe for the visit.
Chimney Sweep Services in Boulder
Chimney sweep services in Boulder are built around one fact: the older the house, the more the job is about inspection. Homes in Mapleton Hill, Whittier, and the Goss Grove area have narrow brick flues sized for open-hearth wood burning. When owners drop in a gas insert, the flue cross-section rarely matches the appliance venting requirements. A brush pass will clean the flue and still miss something important: third-degree creosote glaze hiding above the damper, or a liner that was never resized for the gas unit.
The Sweep Process
We set drop cloths, run the rotary brush through the flue, remove the creosote and soot, and clean the firebox and smoke chamber. Then we run a camera down the flue liner. That camera run is not an upgrade; it is part of the standard price. If the camera shows graduated creosote or a cracked clay tile, we hand you the images and explain what it means in plain terms.

Camera Inspection and Photo Report
Every sweep includes a camera inspection and a photo report you keep. That report is not a sales tool; it is evidence. If we say a liner needs attention, you have the images to verify it. If a crown is cracked but can wait until spring, we say so and put that in writing too. Nothing gets recommended without a picture behind it.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Boulder
When a Boulder chimney does need relining or crown repair, we work with professional-grade materials that carry independent spec sheets: HeatShield, Gelco, and Olympia Chimney. The brand is chosen for the job condition, not for margin. A flue relining (replacing the inner liner that channels smoke safely out of the house) on a 1920s Whittier brick fireplace might spec differently than a repair on a 1990s Gunbarrel home with a factory-built firebox. We keep the proper materials on the truck for most Boulder homes, which cuts the time between diagnosis and finished work. If a covered repair fails within a year, we return at no charge, under the 365-Day Done Right Promise.
Common Chimney Sweep Problems We See in Boulder Homes
- First-degree creosote flaking into the smoke chamber: Boulder’s dry air and pine-heavy fuel load cause creosote to detach and drop behind the damper before it becomes a heavy glaze. This can partially block the damper and restrict draw.
- Mismatched flue liners from gas insert conversions: Many pre-1970s homes in Mapleton Hill and Whittier now run gas inserts in fireplaces built for wood. The flue was not resized, and the cross-section is wrong for the appliance. A sweep shows it, but a Level 2 camera inspection confirms it.
- Cracked crowns and failed flashing from freeze-thaw cycles: Boulder’s winter nights below freezing and daytime sun above freezing cycle repeatedly. Water enters small cracks, freezes, and widens them. The damage shows up as spalling brick inside the firebox.
- Third-degree creosote glaze hiding above the damper: On older narrow flues, a brush passes clean while hardened glaze persists just out of sight. We run a camera on every sweep to catch this. A brush alone does not.
Pricing for Chimney Sweep in Boulder, CO
A standard chimney sweep in Boulder runs $189 – $289. If you add a maintenance inspection and soot removal, the range shifts to $210 – $340. A Level 2 camera inspection as a standalone service runs $150 – $250, but the camera is included in every sweep we perform. Repairs are quoted separately, in writing, before any work begins. What affects the price most in Boulder is access and flue length. Steep roof pitches on Mapleton Hill add ladder time. Extra-long flues on two-story 1920s homes add brush sections. The written quote accounts for all of it, so the price we hand you is the price you pay. Estimates are free. Call (830) 251-4560 and ask for Hank Delano or any of our technicians.
We Also Serve Cities Near Boulder
Our crews regularly serve Boulder and the surrounding Front Range, including Denver, Greeley, Fort Collins, and Colorado Springs. If you are outside Boulder proper, call us and we will tell you directly whether we can reach your neighborhood this week. Same Garrison Standard, same written price before work starts.
Serving Boulder, CO - Our Local Coverage Area
We’re based in the Boulder area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Chimney Sweep in Boulder
Once a year if you burn wood regularly. In Boulder’s dry climate, first-degree creosote flakes and drops into the smoke chamber faster than in wetter Front Range towns, so skipping a year can leave enough debris to restrict your damper. If you only use a gas insert, every two to three years is usually sufficient, but an annual check is still worth it for the crown and flashing. Call (830) 251-4560 for a written quote.
A sweep clears creosote and soot; an inspection tells you whether the chimney is safe to use. In Boulder, where narrow brick flues from the pre-1970s often carry gas inserts they were not sized for, the inspection is the more valuable half of the visit. Our standard sweep includes a Level 1 inspection and camera pass every time. A Level 2 inspection is a deeper look at the flue interior, usually after a change in appliance, a chimney fire, or a real estate transaction.
Yes, but not with a standard brush alone. We use rotary cleaning heads and, when needed, chemical treatments to break down hardened glaze. This work is slower and priced separately. If the glaze is heavy enough to have caused a chimney fire, we will recommend a Level 2 inspection before and after the cleaning. Call (830) 251-4560 and we will walk you through what is involved.
Not usually. In Boulder’s freeze-thaw cycles, small cracks widen slowly, and a February crack is often not a February emergency. If water is actively entering the firebox or you see spalled brick inside, address it within the season. If the crack is hairline and the weather is mild, document it and schedule the repair in spring. We will tell you plainly which category your chimney falls into, and the recommendation will be backed by photos. Call (830) 251-4560 if you are unsure.
We book sweeps ahead of the appointment, not on a same-day dispatch model. A proper sweep includes a camera inspection, photo documentation, and a written report. That is not work to rush. If your chimney is actively smoking or you suspect a chimney fire, call us and we will tell you what to do over the phone and get a crew scheduled as soon as the calendar allows. Call (830) 251-4560 any hour; a live person answers.
Chimney Sweep Cost in Boulder: What You Should Expect
A standard sweep with camera inspection costs $189 – $289. A Level 2 inspection as its own service runs $150 – $250. Annual maintenance including soot removal runs $210 – $340. Every price is settled in writing before the appointment. The only variable is access and flue condition, which we can usually scope from the ground or from photos if you have them. Call (830) 251-4560 for a free written estimate. Hank Delano and the rest of the Flint Chimney Sweep crew serve Boulder and the surrounding Front Range. That phone is answered by a person, not a menu.
Written by Hank Delano, Owner at Flint Chimney Sweep, serving Boulder and the surrounding Front Range since our founding in 2002.





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