Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
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AfterHow Much Does Chimney Cleaning & Sweep Cost in Longmont?
Chimney cleaning in Longmont typically costs $180 to $320 for a standard sweep of a wood-burning flue, and $120 to $190 for a gas appliance vent check. Add a camera inspection and you’re usually looking at $280 to $450 all in. Those are typical ranges for this market in 2026, and the written estimate we give you on site sets the final price.
Longmont sits at the foot of the Front Range, where heating seasons run long and cottonwood fluff drifts through neighborhoods like Old Town and Prospect in early summer. Both mean your flue fills with creosote and debris faster than homeowners expect. If you’ve just bought an older house or skipped a few years of upkeep, a sweep is usually the first thing to book.
We’re chimney sweep longmont, and we handle sweeping, chimney repair, and dryer vent cleaning as three separate services under one roof. Call (855) 360-7080 for a free estimate. We answer 24/7. Fast dispatch, 7am-7pm.
Key Takeaways
- A standard wood-burning sweep in Longmont runs about $180 to $320.
- A gas fireplace or insert vent check costs roughly $120 to $190.
- Adding a Level 2 camera inspection typically pushes the total to $280 to $450.
- Liner resurfacing with HeatShield usually lands between $1,800 and $3,200, versus $3,500 to $7,500 for a full DuraFlex reline.
- Defects found during a sweep can often be repaired on the same visit, which saves you a second call-out.
Chimney Cleaning & Sweep Cost Breakdown (2026)
Here’s how the line items usually shake out for Longmont homeowners this year. These are typical estimates, not quotes. The written estimate after we look at your flue is what you pay.
| Service | Typical Cost Range | What It Covers |
|---|---|---|
| Standard wood-burning sweep | $180 – $320 | Full flue cleaning, creosote removal, firebox and smoke shelf clearing |
| Gas fireplace / insert vent check | $120 – $190 | Vent verification, blockage check, debris removal |
| Level 2 camera inspection | $100 – $150 (add-on) | Video scan of the full flue interior, joint and liner condition |
| Sweep + inspection package | $280 – $450 | Cleaning plus documented video assessment |
| Heavy creosote removal (Stage 3) | $350 – $600 | Hard, glazed creosote that resists normal brushing |
| Chimney cap replacement | $180 – $450 | New cap and screen to keep water, birds, and debris out |
| Crown repair or rebuild | $350 – $1,200 | Cracked or deteriorating crown, common on older Longmont brick chimneys |
| HeatShield liner resurfacing | $1,800 – $3,200 | Targeted liner restoration without full reliner replacement |
| DuraFlex flexible liner installation | $3,500 – $7,500 | Full reline of an aged or damaged flue |
| Dryer vent cleaning | $130 – $220 | Lint removal from the full vent run, duct and exterior termination |
What moves the price up or down? The biggest factor is how much creosote has built up. A flue that’s swept every couple of years is quick work. A flue that’s gone five or more seasons without attention can take twice as long, and glazed Stage 3 creosote may need chemical treatment before brushing even works. Liner condition matters just as much. If the camera shows cracked tile joints or a deteriorated clay liner, resurfacing or relining comes into play, and that’s the difference between a $250 visit and a $2,500 repair. Access also counts. A chimney on a steep-pitch roof or behind a tight chase is slower to reach than one with a straight shot from the ground. We work with a curated roster of professional-grade brands – DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield – so you know exactly what’s going into your home if repairs come up. No mystery parts.
What Affects Chimney Cleaning & Sweep Pricing in Longmont
Six things push a chimney cleaning price around in this market. Knowing them ahead of time helps you read an estimate and spot a lowball.
- Years since the last sweep. A flue cleaned every 2-3 years is a straightforward job. One that’s gone a decade without attention in a house that burns wood all winter takes more time and more scraping. Older homes in Old Town Longmont often fall into this category.
- Creosote stage. Stage 1 is soot you can brush away. Stage 2 is flaky and crusty. Stage 3 is hard, glazed, and stubborn – and it’s the stage that raises fire risk the most. Stage 3 removal costs more because it needs chemical treatment, not just a brush.
- Wood versus gas. Wood-burning appliances need a full flue sweep. Gas fireplaces and inserts need vent verification and debris clearing, which is generally less work and costs less. If you’re not sure which you have, tell us when you call.
- Liner condition. A camera inspection tells you whether your clay tile liner is intact. Cracked tiles mean the flue isn’t containing what it should, and resurfacing or relining becomes the next step. That’s where HeatShield resurfacing earns its keep – it can extend the life of a chimney without a full reliner replacement.
- Roof access and chimney height. Longmont has a broad mix of roof pitches. A low-slope roof with a short chimney is fast to work on. A steep pitch with a tall stack needs more setup.
- Whether repairs are bundled. If the camera finds a cracked crown, a missing cap, or loose mortar, we can often fix it during the same visit. Combining the sweep and repair into one appointment usually costs less than two separate contractor visits.
We name the brands we install because you deserve to know what’s going into your home. If repairs are needed, you’ll see the exact product specified before anything is ordered.
How to Save on Chimney Cleaning & Sweep
You don’t need to overpay for a clean flue. These moves help Longmont homeowners keep costs in the sensible range.
- Sweep on a schedule, not on a problem. Annual or every-other-year cleaning is cheaper than letting creosote build to Stage 3 and paying for chemical treatment and heavy brushing. The math is simple: routine sweeps cost less than one heavy-removal job.
- Bundle the inspection with the sweep. A camera inspection added to a cleaning costs less than booking it separately later. It also catches liner problems while a technician is already on the roof.
- Fix small defects early. A cracked crown or a missing cap costs a few hundred dollars to correct. Left alone, water gets into the masonry, freezes through Front Range winters, and turns a small repair into a liner or rebuild job.
- Book cleaning in summer. Late spring and summer are the quiet months for chimney work. You’ll find more scheduling flexibility and less pressure than in October when everyone remembers their fireplace.
- Clean the dryer vent at the same time. Dryer vents are the hidden fire hazard most chimney companies don’t touch – we do. If you’re already scheduling a chimney visit, adding dryer vent cleaning to the same appointment makes sense.
- Get a free estimate in writing. Every job should come with a written estimate that lists exactly what’s being done and what it costs. Call (855) 360-7080 and we’ll put one together. Estimates are free, and the written price sets the final number.
One thing worth flagging before you book any sweep: don’t try to clean or inspect a flue yourself. Creosote is flammable, and the inside of a chimney isn’t a place to work without training and the right tools. That’s a job for a trained professional, every time.
Chimney Sweeping vs. Chimney Repair: When You Need Which
Homeowners often call asking for a sweep when the real problem is a repair. Here’s how we separate the two.
A sweep is maintenance. It removes creosote, soot, and debris so the flue drafts properly and the fire burns safely. It’s routine, it’s affordable, and it should happen on a regular schedule. A repair is corrective. It addresses a defect – a cracked liner, a damaged crown, loose mortar, a deteriorated cap, or a flue that’s too small or too damaged for the appliance attached to it.
Most sweeps don’t turn up repairs. But when they do, it’s usually because the chimney hasn’t been looked at in years. This is where having a company that does both matters. Identified during the sweep, fixed the same visit – no second contractor, no separate call-out, no gap where a known defect sits unfixed while you find someone else.
If a reline is in your future, DuraFlex flexible liner systems are the industry standard for relining aged or damaged flues. They hold up to heat, fit the flue properly, and give you a known, tested material rather than a generic substitute. For less severe liner wear, HeatShield liner resurfacing can restore the interior without pulling the whole thing out, which usually saves both money and downtime.
Our technicians have up to 9 years of experience, and they’ll tell you plainly whether you need a sweep, a repair, or both. You won’t get a reline quote for a job that only needs cleaning.
Why Local Chimney Pricing in Longmont Isn’t Just a Number
Longmont’s climate and housing stock shape what chimney work costs here. Understanding that helps you judge whether an estimate makes sense.
Winters along the Front Range swing hard – mild days followed by sharp cold snaps. That freeze-thaw cycle works on brick and mortar. It’s why crown cracks and spalling masonry show up on older chimneys around town more than you’d see in a milder climate. It’s also why a small crown repair is worth doing before winter rather than after. Water that gets in, freezes, and expands does more damage in one season than years of normal use.
Longmont also has a real mix of housing. Old Town has century-old brick chimneys with clay tile liners that may never have been relined. Newer builds in neighborhoods like Prospect and the developments along the east side tend to have modern liners and gas inserts, which need a different kind of service. A sweep on a 1920s brick chimney and a vent check on a 2015 gas insert are two different jobs with two different price points.
The cottonwood season matters too. Cottonwood fluff plugs chimney caps and screens in early summer, and if it isn’t cleared, it restricts draft. If your fireplace smokes when you first light it in fall, that’s often the culprit – a cap full of fluff and debris.
And then there’s what a home inspection turns up. If you’ve just bought a house in Longmont and the inspector flagged the chimney, get it looked at before you move in. A sweep plus camera inspection tells you what you’re dealing with, and the written estimate tells you what it’ll cost to put right. There’s no better time to find out than before you’re living with it.
For more on how we approach the work in this city, see our Longmont service page. From the first sweep to a full liner repair, we handle the whole flue.
FAQs – Chimney Cleaning & Sweep Cost
How much does a chimney sweep cost in Longmont?
A standard wood-burning chimney sweep in Longmont typically costs $180 to $320. A gas fireplace or insert vent check runs $120 to $190. If you add a camera inspection, plan on $280 to $450 total. Call (855) 360-7080 for an exact quote – estimates are free.
Is it cheaper to repair or replace a chimney liner?
Repair is almost always cheaper when the damage is moderate. HeatShield liner resurfacing typically costs $1,800 to $3,200, while a full DuraFlex reline runs $3,500 to $7,500. A camera inspection tells you which side of that line you’re on. Call (855) 360-7080 to book an inspection – estimates are free.
Can you come today?
Often, yes. We offer same-day service when scheduling allows, with fast dispatch from 7am to 7pm, Sunday through Friday. Call (855) 360-7080 and we’ll tell you what’s available. We answer 24/7.
How often should a chimney be cleaned?
Most wood-burning chimneys should be swept every 1-2 years, or sooner if you burn heavily. Gas appliances need a vent check roughly every year. In Longmont, a long heating season and cottonwood debris in summer mean annual attention is a reasonable baseline. Call (855) 360-7080 to set up a sweep – estimates are free.
Does chimney cleaning include a dryer vent?
No, dryer vent cleaning is a separate service, typically $130 to $220. It’s worth adding to the same visit because lint buildup is a leading household fire hazard most chimney-only companies ignore. Call (855) 360-7080 to combine both – estimates are free.
Why do some quotes come in so much lower?
A very low quote often means the job doesn’t include a camera inspection, creosote assessment, or any repair capability if a defect turns up. The written estimate should spell out exactly what’s covered. Call (855) 360-7080 for a clear, itemized quote – estimates are free.
If you’ve read this far, you probably already know what you need. Call (855) 360-7080 for a free estimate on your chimney sweep, repair, or dryer vent cleaning. We answer 24/7. Fast dispatch, 7am-7pm, Sunday through Friday. We’ll give you a written price before any work starts, and we’ll tell you straight if a sweep is all you need.
Written by the team at Chimney Sweep Longmont.
Pricing reflects the Longmont market as of 2026. Chimney Sweep Longmont offers free estimates – call (855) 360-7080.
What Our Customers Say
"Cap keeps the birds out now, which after two springs of scratching noises is worth every penny."
- Daniela Ramirez"Good work. The written inspection report took about a week to arrive after I asked for it, which was slower than I expected."
- Rachel Norris"Liner was cracked in two places. He walked me through the repair options honestly, including the one that was cheaper for him and better for me."
- Stephanie Lawson