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 Fort Collins
A standard chimney sweep in Fort Collins typically runs $189 – $289 for a single flue, and most Fort Collins homes take about 45 to 90 minutes from setup to final report. We schedule sweeps across Larimer County six days a week, and our crews know Old Town brick stacks as well as the prefab units in the apartment blocks around CSU. The Chinook winds here change how chimneys draft, how fast creosote forms, and how often a flue that looked fine in October fails by March. Call (336) 863-3889 to book a sweep in Fort Collins and get a written price before we start.
Key Takeaways
- Sweeps in Fort Collins average $189 – $289, with camera-verified Level 2 inspections adding $149 – $249.
- Chinook downslope winds create backdrafting conditions that make Old Town chimneys prone to pushing creosote fumes into living spaces.
- Every Fort Collins job includes a written price before work starts, a written guarantee on repairs, and a technician sent to you by name and photo before arrival.
Why Alcott Chimney Sweep Is Fort Collins’s Preferred Chimney Sweep Company
Ruben Castellano has built Alcott Chimney Sweep on a simple rule: show the customer the evidence before asking for a dollar. In Fort Collins, where a cracked clay-tile liner can hide behind an otherwise clean-looking flue, that rule matters. We do not recommend a liner replacement, a crown repair, or a single square foot of HeatShield resurfacing without first putting a camera in the flue and showing you exactly what we found. You get the photos. You make the call.
Every technician who arrives at a Fort Collins home has passed a background check and identity verification under the Threshold Standard, which has guided Alcott since 2002 as part of the Threshold Group family of home-service companies. Before the truck rolls, you get the technician’s name and photo. At the door, they show a photo ID badge. No exceptions. That standard answers the question a lot of Fort Collins homeowners quietly ask: who is this person walking into my house when my kids are home?
Phones at Alcott are answered by a live person around the clock, not a callback queue. If you smell creosote at 11 p.m. during a Chinook event, someone picks up and tells you what to do next. And every sweep, inspection, and gas fireplace repair comes with a written price before work begins, plus a written guarantee on any repair. If a repair fails during the coverage period, the second visit is free. That is the 365-Day Done Right Promise in plain terms.
Chimney Services in Fort Collins
Chimney services in Fort Collins mean more than running a brush up a flue. We sweep, inspect, document, and when needed, repair. A standard sweep on a Fort Collins wood-burning fireplace runs $189 – $289. Fireplace cleaning, including the firebox, smoke shelf, and damper assembly, runs $149 – $249. If we find glaze-stage creosote, a chemical treatment or rotary removal adds $150 – $350 depending on flue diameter and length.
Sweeping and Creosote Removal
Creosote is the tar-like byproduct of incomplete combustion. At Fort Collins’s 5,000-foot elevation, even a fireplace tuned properly can burn slightly rich and deposit creosote faster than the same unit at sea level. We remove first-degree and second-degree creosote with brushes sized to your flue. Third-degree glazed creosote, which is shiny and rock-hard, requires rotary removal or chemical treatment.

Fireplace Cleaning and Annual Sweeps
An annual sweep should happen before the burning season starts, not after the first freeze. For Fort Collins homeowners who rely on wood heat during shoulder seasons and on no-burn day exemptions, a clean flue means better draft, less smoke intrusion, and less creosote accumulation in the months you actually use the fireplace. We recommend scheduling in August or September so your flue is clear before the first Chinook-driven backdraft of the season.

What happens when you call
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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.
Chimney Sweep Certified in Fort Collins
Chimney sweep certified work in Fort Collins starts with a Level 1 inspection as part of every sweep, included in the sweep price. A Level 1 inspection covers the accessible portions of the flue, damper, firebox, and chimney exterior. A Level 2 inspection, which adds video scanning and attic/crawlspace access checks, runs $149 – $249 and is the only way to know what is actually happening inside a 100-year-old Old Town chimney that has survived a century of freeze-thaw cycles.
Level 1 and Level 2 Inspections
Level 1 inspections belong with every annual sweep. Level 2 inspections belong before a home purchase, after a chimney fire, after an earthquake or major wind event, or when you convert from one fuel type to another. In Fort Collins, where coal-to-gas conversions were common through the 1970s, a Level 2 camera inspection is the only way to identify abandoned upper flue sections that may still hold creosote above an active gas insert.
Soot Removal and Flue Documentation
Soot removal on gas fireplaces and inserts differs from creosote removal on wood-burning units. We remove the soot film that builds up on gas logs, glass, and venting, then we run a camera through the entire flue path and document what we found. You leave the appointment with photos, not just a verbal summary. That documentation is what makes the difference between knowing your chimney is clean and hoping it is.
Trusted Brands We Service in Fort Collins
We install and service the brands chimney professionals actually specify, including Chimney Sweep systems built around DuraFlex stainless steel liners, HeatShield resurfacing, Famco caps, and Copperfield dampers. Fort Collins homeowners who need a new liner, a resurfaced flue, or a replacement cap should not be handed a box-store substitute. We stock DuraFlex liner components, Famco caps, and Copperfield damper parts locally, which means most Fort Collins repairs are completed in one or two visits instead of waiting on a shipment across the country. And because we install these materials, our written repair guarantee is backed by the manufacturer’s warranty plus our own 365-Day Done Right Promise.
Common Chimney Sweep Problems We See in Fort Collins Homes
- Chinook backdrafting. When a downslope wind event pushes 60-plus mph gusts across the Front Range, air pressure changes around your chimney crown. A flue that drafts fine on a calm day can suddenly push combustion gases and creosote fumes back into your living room. Old Town chimneys with spalled clay liners and open access doors are especially vulnerable.
- Spalled clay-tile liners in Old Town. Late-Victorian and early 20th-century brick homes in Old Town Fort Collins often still run on their original clay tile flue liners. A century of freeze-thaw cycling at 5,000 feet, combined with dramatic Chinook temperature swings of 40°F or more in hours, causes tile faces to crack, flake, and fall. A fall inspection that shows minor cracking can show significant spalling by March.
- Dead upper flue sections above gas inserts. Fort Collins converted thousands of coal-burning Old Town chimneys to gas between the 1950s and 1970s. Many of those conversions sealed off the upper flue above the new gas appliance without relining or capping it properly. Camera inspections routinely reveal intact creosote in those dead sections, sitting directly above an active gas insert. That is a hidden fire path a basic sweep never sees.
- Under-serviced prefab fireplaces in CSU rental stock. The post-1970s housing around Colorado State University is full of zero-clearance metal fireplaces. Tenant turnover means units go years without a sweep or inspection. First-degree creosote compounds into glazed third-degree deposits that a standard brush cannot remove. When a new tenant finally calls, the unit often needs rotary removal and a full Level 2 inspection.
Pricing for Chimney Sweep in Fort Collins, CO
Here are the numbers, without the guessing game. A standard chimney sweep in Fort Collins runs $189 – $289 for a single flue with a Level 1 inspection included. A Level 2 inspection with video scanning runs $149 – $249. Fireplace cleaning, including firebox and damper assembly, runs $149 – $249. Glaze-stage creosote removal runs $150 – $350 depending on flue size and severity. New DuraFlex stainless liners typically run $2,500 – $5,000 installed. HeatShield resurfacing typically runs $1,800 – $3,500. Crown repair runs $450 – $900. These are written prices, delivered before any work starts. If a repair isn’t urgent, we’ll tell you plainly it can wait. Call (336) 863-3889 for a free estimate specific to your Fort Collins chimney.
We Also Serve Cities Near Fort Collins
Alcott Chimney Sweep handles the whole Northern Front Range. Beyond Fort Collins, our crews serve homeowners in Greeley, Boulder, Denver, and Colorado Springs. Scheduling is coordinated from our Denver metro office, and we dispatch Fort Collins-made crews throughout Larimer County each week. If you live outside the city limits but still want camera-first chimney work, you’ll get the same written pricing and identity-verified technician arrival.
Serving Fort Collins, CO - Our Local Coverage Area
We’re based in the Fort Collins 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 Fort Collins
Fort Collins sits at the base of the Rockies in a corridor known for violent Chinook downslope wind events that sustain gusts above 60 mph. When those gusts hit your chimney, they disrupt the pressure differential that normally pulls combustion gases up and out. The result is backdrafting, where smoke and creosote fumes push back into your living space instead of venting outside. Greeley sits farther east with flatter terrain and less dramatic wind loading. Denver has its own Chinook exposure, but Fort Collins’ specific position against the Front Range makes the effect more frequent and more severe. The fix depends on what the camera shows, but it typically involves a properly sized cap, a relined flue, or a rebuilt crown. A sweep alone will not stop a Chinook backdraft, and we’ll tell you that before charging you for one. Call (336) 863-3889 for a free estimate on a backdrafting chimney in Fort Collins.
Yes, and in a way that most homeowners never expect. Many Old Town Fort Collins chimneys converted from coal to gas between the 1950s and 1970s have abandoned upper flue sections that were sealed off above the new gas insert. Those dead sections often still hold creosote from decades of coal and wood burning. Camera inspections routinely find intact creosote deposits sitting directly above active gas inserts, a fire hazard that has nothing to do with how often you burn this year. A standard sweep ignores those sections because a brush never reaches them. A Level 2 camera inspection is the only way to find and address them. Call (336) 863-3889 to schedule a camera inspection of your converted Old Town chimney.
At 5,000 feet, air is thinner and holds less oxygen. Appliances tuned at sea level burn slightly rich here, which produces more unburned particulates. Those particulates condense on the flue walls as creosote. The same fireplace that builds a thin layer of creosote in a full season at lower elevation can build a thick, glazed layer in far less time in Fort Collins. This is why we recommend annual sweeps for any Fort Collins wood-burning fireplace that is used more than a handful of times per season, and why we check for glaze-stage creosote at every single sweep. Rotary removal or chemical treatment may be needed sooner here than in other Front Range cities. Call (336) 863-3889 to have your flue checked before the burning season.
Yes, because no-burn days are mandatory, not advisory. Fort Collins falls within the Northern Front Range Air Quality Control Region, where CDPHE enforces residential burning restrictions during high-pollution periods. When a no-burn day is in effect, you cannot legally use your wood-burning fireplace. You end up with fewer legal burn days, which means every approved burn day counts. A clean, low-restriction flue produces less smoke, burns more efficiently, and complies more easily with local air quality rules. If your chimney is dirty, you’ll produce heavier smoke and creosote, which is worse for your home and worse for Fort Collins air quality. A pre-season sweep gets more heat out of every approved burn day. Call (336) 863-3889 to schedule one.
No, and we have a structural reason for saying that. Alcott’s entire Fort Collins practice runs on one rule: nothing gets recommended without camera evidence the homeowner can see. When we find a cracked clay-tile liner, a deteriorating crown, or a dead flue section above a gas insert, we show you the video and the still photos before we quote anything. If we cannot show you the problem, we will not quote the repair. We also tell you plainly when work can safely wait. A hairline crack in a crown may be a next-season item. A spalled clay-tile liner that is actively dumping flue debris into the firebox is not. Ruben Castellano built this company so that Fort Collins homeowners never have to guess whether their chimney professional is padding the invoice. The camera is the accountability. Call (336) 863-3889 and we’ll show you exactly what we see.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Fort Collins homeowners with camera-first, written-price chimney care since 2002.
Need a chimney sweep in Fort Collins, CO? Call Alcott Chimney Sweep at (336) 863-3889 for a free estimate. We’ll send a background-checked, identity-verified technician by name and photo before arrival, hand you a written price before any work starts, and back every repair with a written guarantee. If the repair fails, the second visit is free.





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