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
Before
After
Before
After
Before
AfterHow Much Does Chimney Liner & Rebuild Cost in Longmont?
A chimney liner or rebuild in Longmont typically costs between $2,400 and $8,900, depending on whether you need a new stainless liner, structural masonry work, or both. A straightforward flexible liner installation for a standard flue usually lands near the lower end, while a partial rebuild with a new crown and repointing pushes toward the top. Every job is quoted in writing after we inspect the flue, and the written estimate sets the final price.
We’re the team behind chimney sweep longmont, and we handle sweeping, repair, and dryer vent work as three separate service categories under one roof. That matters for pricing: when a sweep turns up a cracked flue tile or a failed mortar joint, we can scope the repair on the same visit rather than sending you to a second contractor who starts the assessment from scratch.
Key Takeaways
- Full stainless flexible liner installs in Longmont generally fall in the $2,400-$5,800 range for a typical single-flue chimney.
- HeatShield resurfacing runs roughly $1,650-$3,400 and can spare you a full reline when the flue is still structurally sound.
- Partial masonry rebuilds start around $3,200 and climb past $8,900 when the job includes a new crown, flashing, and a full reline.
- Our technicians have up to 9 years of experience, and we install named professional brands: DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield.
- Estimates are free. Call (855) 360-7080. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Chimney Liner & Rebuild Cost Breakdown (2026)
Here’s what the main line items look like in the Longmont market for 2026. These are estimated ranges, not fixed prices. The flue’s condition, length, and access drive the spread.
| Line Item | Typical 2026 Range (Longmont) |
|---|---|
| Chimney sweep and inspection (baseline before any repair) | $180 – $340 |
| Video camera flue inspection | $150 – $300 |
| Stainless flexible liner install (standard single flue) | $2,400 – $5,800 |
| Insulated liner upgrade | add $400 – $900 |
| HeatShield flue resurfacing | $1,650 – $3,400 |
| New chimney crown | $600 – $1,400 |
| Repointing (per section of stack) | $500 – $1,900 |
| Partial masonry rebuild (upper stack) | $3,200 – $6,700 |
| Full reline plus partial rebuild combo | $5,900 – $8,900 |
| New cap and top-sealing damper | $280 – $700 |
| Flashing repair at the roofline | $350 – $850 |
What pushes a quote up? Long flues cost more because liner is priced by the foot. A chimney with a heavy offset or a sharp bend may need two shorter liner sections joined rather than one continuous run. Masonry rebuilds climb when the stack is tall, the roof pitch is steep, or the damage reaches below the roofline into the smoke chamber. What pulls it down? A flue that passes a video inspection with intact tiles can often get HeatShield resurfacing rather than a full reline, and that’s the single biggest cost saver on this list.
We use HeatShield liner resurfacing specifically because it’s a targeted repair: it smooths and seals the flue interior, restoring performance without pulling the whole liner. For a Longmont homeowner looking at a failed tile joint, that’s a meaningful difference in both money and disruption.
What Affects Chimney Liner & Rebuild Pricing in Longmont
Longmont sits at the foot of the Front Range, and that geography shapes chimney work in ways a coastal or flatland market doesn’t share. Here’s what moves the number.
- Freeze-thaw cycling. Longmont winters swing hard between freezing nights and mild afternoons. Water gets into mortar joints, freezes, expands, and pops the masonry loose. That cycle is the main reason we see crowns and upper stacks needing rebuilds rather than simple patching. A chimney that survives a Front Range winter intact is doing well.
- Flue length and roof pitch. A tall stack on a steep roof means more liner, more staging, and more time. Two homes on the same block can quote differently because of pitch alone.
- Liner material choice. DuraFlex flexible liner is the industry standard for relining aged or damaged flues. The gauge, insulation, and whether the flue needs an insulated wrap all affect the line item. We name the brands we install because you deserve to know what’s going into your home.
- Condition found during the sweep. This is the big variable. A flue with a hairline crack in one tile is a very different job from one with spalled mortar and a collapsed tile section. That’s why we run a camera inspection before quoting a rebuild. Identified during the sweep, fixed the same visit where the scope allows.
- Chimney style and age of the home. Older Longmont homes near the downtown core often have interior chimneys built with older brick and lime mortar. Those can need gentler repointing than a newer exterior stack.
- Gas versus wood appliance. A gas fireplace flue has different venting requirements than a wood-burning one. The liner and termination hardware change with the appliance, and so does the price.
One safety note before anything else: the flue and the masonry around it are not a DIY project. A failed liner lets heat and carbon monoxide into the structure, and a rebuild means working at height on a roof. We recommend a trained professional handle both. What you can do as a homeowner is know the warning signs, which we get into below.
How to Save on Chimney Liner & Rebuild
The cheapest chimney repair is the one you avoid by catching the problem early, but when a rebuild is on the table, there are real ways to keep the number down.
- Get a sweep and camera inspection first. A $180-$340 sweep can reveal that you need resurfacing instead of a full reline, which is a difference of thousands. Skipping the inspection and going straight to a rebuild quote is how homeowners overpay.
- Ask about HeatShield before committing to a reline. If the flue is structurally sound but the interior surface is pitted or cracked at the joints, resurfacing can extend the chimney’s life without a full liner replacement. It’s less invasive and less expensive.
- Bundle the crown and cap with the liner work. Doing these in one visit avoids a second mobilization. A crown that’s failing lets water in, and water is what drives most of the rebuild work we see in Longmont.
- Address flashing before it becomes a rebuild. A flashing repair runs $350-$850. A rebuild caused by years of undetected water intrusion runs several thousand. Catching it early is the whole game.
- Don’t skip the dryer vent. It’s not a chimney line item, but lint buildup is a leading household fire hazard, and most chimney-only companies ignore it. We clean dryer vents as a core service. It’s a small cost that removes a real risk.
- Get the estimate in writing, free. Ours are free, and the written estimate sets the final price. Call (855) 360-7080 and we’ll scope the job properly.
If you’re in Longmont and want a straight read on your flue, we can look at it and tell you what it actually needs. From the first sweep to a full liner repair, we handle the whole flue.
FAQs – Chimney Liner & Rebuild Cost
How much does a chimney liner cost in Longmont?
A stainless flexible liner install in Longmont typically runs $2,400 to $5,800 for a standard single-flue chimney. Insulated liner adds roughly $400 to $900. HeatShield resurfacing, which can replace a full reline in some cases, runs $1,650 to $3,400. Call (855) 360-7080 for an exact quote. Estimates are free.
Is it cheaper to repair or replace a chimney liner?
Repair is usually cheaper when the flue is still structurally sound. HeatShield resurfacing at $1,650-$3,400 costs less than a full reline at $2,400-$5,800 and works when the damage is surface-level. If tiles are cracked through or the flue has lost its shape, replacement is the honest answer. A camera inspection tells you which one you’re facing. Call (855) 360-7080 and we’ll walk you through what we find.
How much does a chimney rebuild cost in Longmont?
A partial masonry rebuild on the upper stack runs $3,200 to $6,700. A full reline plus partial rebuild combo lands between $5,900 and $8,900. The freeze-thaw cycles along the Front Range are hard on mortar, so rebuilds here often include a new crown and flashing, which add to the total. Call (855) 360-7080 for a written estimate on your specific stack.
Can you come today?
Same-day service is often possible. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. A call outside dispatch hours is booked into the next opening, Sunday through Friday, 7am to 7pm. Call (855) 360-7080 to get on the schedule.
What signs mean I need a liner or rebuild instead of just a cleaning?
White staining on the exterior brick (efflorescence), crumbling mortar between bricks, a cracked or missing chimney crown, rust on the damper, or a smoky smell in the house after a fire are all signs the flue needs more than a sweep. A camera inspection at $150-$300 confirms it. If you’re seeing any of these, call (855) 360-7080 before the next burn. Estimates are free.
Why We Quote the Brands and the Scope
Pricing on a chimney liner is only honest if it names what’s going in. We’re authorized to install and work with DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield products. These are professional-tier brands, not hardware-store substitutes. When we quote a liner, the estimate lists the material by name so you can see what you’re paying for.
We also think a price should reflect the whole job, not just the visible part. That’s why every liner and rebuild quote starts with a sweep and camera inspection. It’s the only way to scope a repair honestly, and it’s the difference between a quote that holds and one that grows once work begins. Professional-grade materials. Transparent process. No mystery parts.
For homeowners in Longmont, that means one conversation about the flue, the masonry, and the venting, with a written number at the end of it. If your home inspection flagged a chimney issue or you’ve skipped a few years of maintenance, we’d rather show you the camera footage and let you decide than sell you a rebuild you don’t need.
Get a Free Estimate on Your Chimney Liner or Rebuild
If you’re in Longmont and facing a liner decision, a rebuild quote, or a chimney that’s been flagged by an inspector, the next step is simple: get a real scope and a written price. Our technicians have up to 9 years of experience, we install named brands, and we clean dryer vents while we’re at it because lint buildup is a fire hazard worth taking seriously. Give us a call at (855) 360-7080 for a free estimate. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. We’ll tell you what the flue actually needs, and you’ll have the number in writing before any work begins.
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