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
See the difference
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After
Before
After
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AfterHow Much Does Chimney Repair Cost in Longmont?
Chimney repair in Longmont typically costs $185 to $425 for a focused fix like a crown patch or a flue tile repair, while a partial rebuild runs $1,800 to $6,500 and a full chimney rebuild can reach $8,000 to $15,000. A HeatShield liner resurfacing usually lands between $950 and $2,400, and a DuraFlex flexible liner installation runs $2,200 to $5,800 depending on flue length and access. These are 2026 estimates for the Longmont market; your written estimate sets the final price.
Chimney Repair Cost Breakdown (2026)
Most homeowners want one number before they call, and that’s fair. The problem is that “chimney repair” covers everything from a hairline crack in the crown to a flue that’s completely failed. Here’s how the line items break down locally so you can budget before anyone knocks on your door.
| Repair item | Typical 2026 range (Longmont) | What it covers |
|---|---|---|
| Chimney sweep & inspection | $150 – $350 | Sweep, Level 2 inspection, photo report of defects |
| Crown repair (small cracks) | $185 – $450 | Seal and patch hairline cracks, spot repair |
| Crown rebuild | $550 – $1,400 | Remove and recast the crown overdamage |
| Flue tile repair (single joint) | $350 – $900 | Replace or reseat a cracked tile section |
| HeatShield liner resurfacing | $950 – $2,400 | Ceramic resurfacing of an intact but damaged flue |
| DuraFlex flexible liner installation | $2,200 – $5,800 | Full flexible relining, insulated or non-insulated |
| Firebox repair | $450 – $1,600 | Refirebrick, mortar joints, firebox panel replacement |
| Smoke chamber parging | $400 – $1,100 | Reseal chamber walls to stop smoke drafting |
| Partial chimney rebuild | $1,800 – $6,500 | Rebuild upper section above the roofline |
| Full chimney rebuild | $8,000 – $15,000 | Full teardown and reconstruction, exterior |
| Dryer vent cleaning | $125 – $250 | Lint removal, full run on the dryer exhaust |
The single biggest driver on that table is whether the repair is cosmetic or structural. A crown patch is a few hundred dollars because it’s a small, focused job. A full rebuild is five figures because it involves cutting into the roof, rebuilding from the smoke chamber up, and matching masonry that has to hold up to another Colorado winter. The middle of the range – resurfacing and relining – is where most Longmont homeowners actually land. HeatShield resurfacing is the less invasive option when the flue structure is still sound but the interior is pitted or spalling. When the flue is compromised beyond resurfacing, DuraFlex is the industry standard for relining aged systems, and we install it because it performs and because we can tell you exactly what’s going into your home.
If you’re still deciding whether to repair at all, it usually makes sense to get a sweep and inspection first – the report will tell you which line items actually apply. You can schedule a chimney sweep and get the honest answer before you commit to any of the numbers above.
What Affects Chimney Repair Pricing in Longmont
Two chimneys of the same height and appearance can come in hundreds or thousands of dollars apart. Here’s what moves the number.
- Freeze-thaw cycling along the Front Range. Longmont sits in a climate that freezes and thaws repeatedly through winter, and masonry that takes on water expands and cracks when that water freezes inside it. Chimneys here fail at joints and crowns faster than in milder climates, so masonry repairs need to include proper flashing and crown drainage to last. That’s a slightly bigger scope than a cosmetic patch, and it’s priced accordingly.
- Chimney height and roof access. A chimney that clears the ridgeline high above the roof costs more to work on than a short one near the eaves. Scaffolding, staging, and the time to set up safely all factor into labor, which is the largest slice of any masonry repair.
- Age of the home and original construction quality. A lot of Longmont’s older housing stock has original clay tile liners that have been through decades of heating cycles. Cracked or spalled tiles are common, and if the damage is widespread a full reline is more economical than chasing individual tile repairs.
- Whether the flue can be resurfaced or must be relined. HeatShield resurfacing is a targeted repair that can extend a chimney’s life without a full reliner replacement, so it’s the cost-effective middle option when the structure underneath is still intact. If the tiles are collapsed or the flue is oversized for the appliance, a DuraFlex flexible liner is the right call – and that’s the larger of the two repairs.
- What the appliance is. A wood-burning fireplace, a wood stove insert, and a gas appliance each need different clearances and liner specifications. Gas appliances especially can have their own venting requirements, which affects the materials required.
- What’s found during the sweep. The best repair pricing follows an actual inspection. Fixing a defect the same visit it’s found (when it’s a simple repair) avoids a second appointment and the labor that comes with it.
We name the brands we work with – DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield – because you deserve to know what’s going into your home. Specification-grade materials cost a little more than the hardware-store versions, and they’re the difference between a repair that lasts another winter and one that doesn’t.
How to Save on Chimney Repair
Nobody wants to spend more than necessary on masonry. A few of the things that actually move the number down:
- Get the sweep before the repair. The inspection tells you exactly which repairs are needed. Skipping straight to a reline quote without a proper look at the flue means you might buy work you don’t need. A $150 to $350 sweep can save you thousands in unnecessary relining.
- Fix small issues before they become large ones. A $185 crown patch now beats a $1,400 crown rebuild next spring. Freeze-thaw damage accelerates once water gets in, so catching cracks early is the cheapest repair you’ll ever do.
- Group repairs into one visit. Since we handle sweeping and repair together, a defect identified during the sweep can often be fixed on the same visit – no second trip charge on the labor.
- Consider HeatShield before committing to a full reline. Resurfacing is less invasive and costs a fraction of a full DuraFlex installation. If the flue structure underneath is still sound, it’s often the right answer.
- Don’t forget the dryer vent. Lint buildup in the dryer exhaust is a leading household fire hazard, and a $125 to $250 cleaning is one of the cheapest safety measures in the house. It’s included as a core service here because most chimney-only companies ignore it, and we’d rather you have it on the list than not.
- Ask for the written estimate. Estimates are free, and the written estimate sets the final price. There’s no reason to guess.
Our technicians have up to 9 years of experience, and they’ll tell you what they found and what it will cost before anyone touches a brick. Call (855) 360-7080 for a free estimate – we answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Is chimney repair in Longmont cheaper than replacing the chimney?
Yes, almost always. A focused repair runs $185 to $2,400 while a full rebuild runs $8,000 to $15,000, and HeatShield resurfacing at $950 to $2,400 can delay or avoid a reline entirely. Replacing a chimney only makes sense when the structure has failed at multiple points or the flue can’t be resurfaced or relined. Call (855) 360-7080 for an exact quote – estimates are free.
How much does chimney crown repair cost in Longmont?
Crown repairs in Longmont run $185 to $450 for sealing and patching hairline cracks, and $550 to $1,400 for a full crown rebuild. Cracks in the crown are the most common freeze-thaw failure we see on Front Range chimneys, and they’re the earliest thing worth catching. Call (855) 360-7080 for an exact quote – estimates are free.
How much does chimney relining cost in Longmont?
Relining in Longmont runs $950 to $2,400 for HeatShield liner resurfacing and $2,200 to $5,800 for a DuraFlex flexible liner installation. HeatShield is the less invasive option when the flue is still structurally sound. DuraFlex is the industry standard when the existing flue is compromised or oversized for the appliance. Call (855) 360-7080 for an exact quote – estimates are free.
Can I combine chimney sweep and repair into one visit in Longmont?
Yes. A sweep plus repair on the same visit typically runs $150 to $350 for the sweep and inspection plus whatever the repair costs. Combining the two avoids a second appointment and the labor to set up again. Call (855) 360-7080 for an exact quote – estimates are free.
How long does chimney repair take in Longmont?
Small repairs like a crown patch or a flue tile repair are usually finished in a few hours, while HeatShield resurfacing takes the better part of a day and a DuraFlex liner installation or rebuild runs one to three days. A partial rebuild can stretch to a week or more depending on weather and materials. Call (855) 360-7080 – our team will tell you what’s realistic for your chimney.
Key Takeaways
- Most Longmont chimney repairs cost $185 to $2,400; a full rebuild runs $8,000 to $15,000.
- A sweep and inspection ($150 to $350) is the cheapest way to know what you’re buying.
- Freeze-thaw cycling along the Front Range makes crown and flue damage common here.
- HeatShield resurfacing can extend a chimney’s life without a full reline.
- Dryer vent cleaning ($125 to $250) covers a fire hazard most chimney companies skip.
What to Expect When You Call
We answer 24/7, and fast dispatch runs from 7am to 7pm, Sunday through Friday. When your technician arrives, they’ll sweep the flue, inspect the crown, firebox, smoke chamber, and liner, and show you photos of anything that needs attention. You’ll get a written estimate before any repair starts, so the final price is agreed in writing up front. No surprises, no “while we’re here” upsells. If you have a recent home inspection report flagging chimney issues, bring it along; it helps point us straight at the problem.
We’ve built the business around three service categories under one roof: chimney sweeping, chimney repair, and dryer vent cleaning. That matters because a defect found during a sweep can often be resolved the same visit instead of scheduling a second contractor. If you want the broader picture of what we cover, our Longmont service page lays it out.
Why Chimney Repair Pricing Varies So Widely
The range on this page is wide because chimney work itself is wide. A single crack in a crown and a failed flue liner are both “chimney repair,” and there’s no honest way to price them the same. What we won’t do is quote low and find reasons to raise it later. The written estimate sets the final price, and the number in writing is the number you pay.
If you’re worried about a specific issue – a flue that smokes back, a crown that’s crumbling, a liner you can’t see – the fastest way to know is to book a sweep and inspection. It’s the cheapest item on the table, and it’s the one that tells you whether the rest of the list applies.
Call (855) 360-7080 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
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
"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"Crown was cracked and taking water. Repaired it rather than quoting a rebuild, which the previous company had pushed hard for."
- Holly Reed"Level two inspection before we bought the house. The report was detailed enough to use as a negotiating point and he explained every photo in it."
- Greg Padgett