Clear your chimney the right way—safely, thoroughly, and with zero surprises. Serving Boulder and nearby neighborhoods since 2008.

Comprehensive chimney sweep for Boulder homes and businesses.
Remove creosote buildup safely and efficiently
Three-level inspections to catch hidden damage early
Fix cracks, gaps, and structural issues fast
Protect your chimney from animals, debris, and weather
Restore clarity and safety to your fireplace doors
Detect invisible dangers before they become emergencies
We hold ourselves to the highest standards so you can hire with total confidence.
We’re not just another chimney sweep—we’re a family-owned business that treats your home like our own. Every technician is certified by the Chimney Safety Institute of America, and we carry full liability insurance to protect you. We arrive on time, in uniform, and with all the tools needed to finish the job in one visit. No hidden fees, no pressure to buy unnecessary services. Just a clean chimney and your satisfaction guaranteed.
Boulder’s high altitude and dry air mean creosote builds up faster than in other climates. Add in sudden temperature swings and frequent windstorms, and your chimney faces more wear than you might realize. We know these conditions inside and out, so we adjust our cleaning and inspection methods to catch issues early—before they become costly repairs. From the foothills to downtown, we’ve seen it all and fixed it right.
Moving into your first home is overwhelming enough without worrying about chimney maintenance. We simplify the process with free estimates, clear explanations, and no surprises. We’ll walk you through what we found, why it matters, and how to prioritize repairs. Whether you’re a new parent, a remote worker, or just someone who wants a safe fireplace, we’ll give you the confidence to enjoy your home without stress.
Safety isn’t just our job—it’s our priority. We follow strict CSIA guidelines for every sweep, inspection, and repair, and we document our work so you have a record of what we did and when. If we recommend a repair, we’ll show you photos or videos of the issue and explain your options. No upsells, no vague warnings—just honest advice and work you can trust.

As a first-time homeowner in Boulder, you’ve likely spent months learning the quirks of your new house—from squeaky floors to finicky thermostats—but one system deserves your immediate attention: your chimney. Unlike cosmetic fixes, a neglected chimney isn’t just an inconvenience; it’s a silent hazard that can compromise your home’s safety, air quality, and even resale value. We founded Daniel Thompson Chimney Inc to bridge the gap between overwhelming homeowner questions and the precise, no-nonsense care your chimney needs. Whether your fireplace was installed by the previous owners or you’re still deciding if it’s safe to use, we treat every question with the patience of a neighbor who’s been there—because we’ve swept chimneys in Boulder’s historic homes, cozy cottages near Chautauqua Park, and modern builds in Gunbarrel alike.
"We bought our first home on Mapleton Hill and had no idea what to expect from chimney maintenance. Daniel and his team explained everything in plain English, found a small crack we’d missed, and fixed it before it became a problem. Our fireplace is now safer and smells amazing—no more smoky odors!"
"After a windstorm knocked a branch into my chimney, I panicked. Daniel Thompson Chimney Inc came the same day, cleared the debris, and checked for hidden damage. They even helped me file the insurance claim. Can’t recommend them enough for fast, reliable service in Boulder County."
"As a single mom, I don’t have time for flaky contractors. Daniel’s team showed up on time, did a meticulous job, and left my house cleaner than they found it. They even reminded me when my next sweep was due—no pushy sales, just good service."
"We’ve lived in Boulder for 15 years but never had our chimney properly inspected. The technician found creosote buildup we didn’t know was there and gave us tips to burn more efficiently. Worth every penny for the peace of mind."
"My rental property’s chimney was a disaster when I bought it. Daniel Thompson Chimney Inc cleaned, repaired the crown, and installed a cap—all in one visit. They even provided before-and-after photos for my records. Professional and trustworthy."
"We were worried about the cost of repairs after our inspection, but Daniel gave us honest options and didn’t pressure us. They fixed the issue quickly and followed up to make sure everything was working perfectly. Great local business!"
Expert local advice for Boulder homeowners.
Learn to spot Boulder chimney repair red flags, typical costs, and when DIY fixes won’t cut it. Protect your home before winter sets in.
Read more →Learn the three levels of Boulder chimney inspections, local costs, and why skipping them risks fire, carbon monoxide, and costly repairs in our mountain climate.
Read more →Learn Boulder-specific chimney sweeping costs, how often to schedule it, and what happens during a visit. Protect your home and family with expert local advice.
Read more →Call us at (720) 715-9414 or book online for a time that works for you. We offer weekday, weekend, and emergency slots, including same-day service for urgent issues. You’ll get a confirmation email with our arrival window and a reminder the day before. No waiting around—we respect your time as much as your chimney.
Your sweep will call you 15 minutes before arrival to confirm. They’ll wear shoe covers, use drop cloths, and keep the work area tidy. We’ll explain what we’re doing as we go, so you’re never left wondering. If you have questions about your chimney’s history or future maintenance, ask away—we love educating first-time homeowners.
We use HEPA vacuums and brushes sized for your specific flue to remove every trace of creosote and soot. After cleaning, we perform a Level 1 inspection (or higher if needed) and show you any issues on a tablet or phone. You’ll leave with a clear picture of your chimney’s condition and a written report.
We vacuum the hearth, shake out drop cloths, and take our equipment with us—leaving your home spotless. You’ll get a digital invoice, warranty details, and a reminder for your next sweep. Need a repair? We’ll send a follow-up email with options and pricing within 24 hours. Your satisfaction is our guarantee.
Proudly serving Boulder and these nearby communities.
First, stop using it immediately if you’ve noticed smoke backing up, a strong chemical odor, or soot accumulating on your hearth. These are red flags for creosote buildup or a blocked flue, both common in older Boulder homes. Schedule a Level 2 inspection with us; we’ll check the tile’s condition, measure flue clearance, and test for carbon monoxide leaks. If repairs are needed, we’ll give you a clear, itemized quote—no surprises.
That persistent campfire smell is almost always creosote residue trapped in your flue, which Boulder’s dry air and frequent fireplace use in winter can worsen. Humidity from summer monsoons can also reactivate old odors. A professional sweep removes the buildup, and we’ll recommend a stainless steel liner or a deodorizing treatment if the smell lingers.
DIY chimney cleaning might seem cost-effective, but Boulder’s elevation and variable weather mean your flue could hide cracks, nests, or excessive creosote that a brush can’t reach. Professionals like us use specialized cameras and tools to inspect every inch, ensuring no hidden damage goes unnoticed—especially important in older Boulder homes where chimneys weren’t built to modern standards.
Chimney sweeping frequency depends on usage, fuel type, and flue condition. If you burn more than three cords of wood annually or use your fireplace daily, Boulder’s altitude and dry air accelerate creosote buildup. We recommend at least one sweep per year for wood-burning fireplaces, but homes with gas inserts may need less—we’ll assess your specific setup during your free estimate.
A chimney crown or flashing failure is the most likely culprit. Boulder’s freeze-thaw cycles can crack masonry, and even a small gap lets water seep in, damaging the flue liner and interior walls. We’ll inspect your crown, repoint mortar joints if needed, and seal gaps with high-temperature caulk to prevent leaks—no patchwork solutions that’ll fail next winter.
Yes—Boulder’s 5,430-foot elevation means thinner air, which can reduce oxygen for combustion and increase creosote production. Fireplaces and stoves here need more frequent inspections to ensure proper drafting. We’ll check your flue’s draw during our sweep and adjust your damper settings if needed to prevent smoke backflow.
A Level 1 inspection is the standard for routine sweeps—we check accessible areas for obstructions or buildup. A Level 2 is required if you’ve changed fuel types, experienced a chimney fire, or bought a home in Boulder (common after inspections for real estate transactions). It includes a video scan of the flue and attic inspection. We’ll recommend the right level during your free estimate.
You can use your fireplace immediately after a professional sweep, but we recommend waiting 24 hours for any residual dust to settle. For homes in Boulder’s foothills, where winds can stir up debris, we’ll also check that your damper opens fully before you relight the fire. If we’ve made repairs, we’ll give you specific guidance on when it’s safe to resume use.
Fast response, upfront pricing, and workmanship guaranteed. Get your free estimate today.