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.
DuraFlex Chimney Cleaning in Fort Collins, CO
We provide independent DuraFlex service across Fort Collins, and we’re not affiliated with or authorized by the manufacturer. What sets our DuraFlex work apart here is that we treat every system as two chimneys in one – the old masonry chase and the factory-built liner inside it – because that’s what Fort Collins housing usually gives us. From inspection to sweep to repair, the same specialists handle it. Call (855) 632-3564 for a free estimate.
Key Takeaways
- We service DuraFlex prefab and liner systems independently, with no dealership ties.
- Fort Collins freeze-thaw swings and wind are hard on caps, flashings and galvanized sections.
- A Level 2 inspection often verifies both the original brick chase and the newer DuraFlex liner inside it.
- Every job starts with camera evidence you can see before we recommend anything.
Why Fort Collins Residents Choose Us for DuraFlex Service
Chimneys are all we do. Our technicians have up to 13 years of experience, and every one of them works in the chimney trade only – not split across unrelated home services. That focus matters with DuraFlex systems, because the failure points on a prefab chimney or a flexible liner aren’t the same as the failure points on a traditional masonry flue, and reading one like the other leads to wrong recommendations.
We know how these factory-built components age in Fort Collins. Wind-driven moisture behind a loosened cap, sun-baked sealant at a collar joint, a liner pulled through cracked clay tile – these are the things we look for on every call. When a section has failed, we lean toward OEM DuraFlex parts so clearances stay as engineered; quality aftermarket seals, flashings and fasteners are fine where they don’t affect the listed assembly. We’re an independent shop, so we diagnose what your system actually needs rather than what a dealer’s parts counter wants to move.
Scheduling is straightforward. We answer 24/7 on the phone line, and technicians are dispatched Sunday through Friday, 7am to 7pm, with Saturday closed. We book by written estimate, and the estimate is free.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common DuraFlex Chimney Cleaning Problems We Solve in Fort Collins
These are the DuraFlex failures we run into most often in Fort Collins, and the local conditions that tend to bring them on.
- Galva-Vent sections rusting through at the lock seams. Fort Collins’s freeze-thaw swings and wind-driven moisture find their way behind a cap that’s been nudged loose, and galvanized steel develops pinholes along the seams. What looks like a cosmetic stain on the pipe is often the first sign of a section that needs replacing.
- Flexible stainless liner kits kinked at offsets. In older downtown and university-area homes, liners were pulled through clay tiles that had already cracked. A crush point at an offset restricts draft, and the fireplace smokes on start-up even though the flue was “just cleaned.”
- Direct-vent gas terminations pulling away from the wall. Fort Collins’s high winds work on the termination on newer builds, and once it loosens, moisture gets in and the appliance backdrafts on gusty days. Reseating and re-flashing the termination usually solves it.
- DuraPlus triple-wall cap and flashing corrosion. Intense sun and dry air degrade the sealant around collar joints and caps over time. Water then tracks toward the firebox, and what starts as a crown problem becomes an interior one.
- Creosote packed above a DuraFlex insert. Wood burning is a backup heat source in many Fort Collins homes, and a retrofit insert often leaves a shelf of flue above it that collects creosote fast. The dry air here speeds the buildup, and the shelf is exactly where a chimney fire would start.
DuraFlex Service in Fort Collins: What Local Conditions Mean for Your Equipment
In Fort Collins’s older downtown and university-area homes, sweeps regularly find original 1920s brick chimneys with crumbling mortar joints, and many DuraFlex insert retrofits went straight into those same flues. That combination shapes how we work here. A Level 2 inspection on a downtown brick chimney with a newer factory liner isn’t one inspection, it’s two: we verify the old masonry chase – mortar joints, crown, flashing, the condition of the interior tile – and the DuraFlex liner and its connections inside it. Neither one tells you much on its own. A liner that looks sound from the top can sit inside a chase whose mortar is failing, and a solid chase can hide a crush point at an offset. Because so many Fort Collins homeowners schedule cleaning right before the first cold snap in October, we’d rather do that dual check in late summer or early fall than discover a problem the week the fire gets lit. The high-altitude, semi-arid climate adds another layer: freeze-thaw cycles loosen mortar and caps, and the intense sun dries out sealant long before the metal itself gives up. We’re independent of DuraFlex, so the inspection report is ours, and you can see the camera footage for yourself.
DuraFlex Models & Products We Service in Fort Collins
The DuraFlex equipment we work on in Fort Collins covers the common configurations: Galva-Vent Galvanized prefab chimney systems, Stainless Steel Flexible Liner kits, direct-vent gas fireplace venting, and DuraPlus triple-wall prefab chimney sections. Cleaning and inspection are the same job regardless of which one you have. Repairs branch by type.
On parts, our approach is simple. When a section, cap or termination has failed, we fit the correct OEM DuraFlex component, because these systems are engineered as assemblies and mismatched pieces can change the clearances they were built to. Where a part doesn’t affect that assembly – a flashing, a sealant, a fastener – a quality aftermarket piece is fine. We don’t claim to stock or carry anything; we specify what the job needs and work from there. We repair, install and service DuraFlex equipment as an independent provider, with no manufacturer affiliation.
See the difference
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AfterDuraFlex Service Pricing in Fort Collins
DuraFlex cleaning, inspection and repair in Fort Collins is priced per job by a written estimate, and the estimate is free. What drives the number is the system, not the neighborhood. A single-story Galva-Vent prefab is a quicker clean than a two-story masonry chase with a flexible liner inside it. A Level 2 inspection adds time because there’s more to document. Cap or termination replacement is a parts-and-access job. Replacing a rusted Galva-Vent or DuraPlus section costs more than reseating flashing, and pulling a crushed liner section out is a bigger job than clearing creosote off a shelf.
What the estimate includes: the inspection findings with camera evidence, a flat price for the sweep agreed before we book, and a photo report afterward. If the honest answer is that your DuraFlex system can safely wait until spring, we’ll tell you that in writing. Call (855) 632-3564 for an exact quote.
Serving Fort Collins, CO – Our Local Coverage Area
We serve Fort Collins and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Fort Collins
It depends where the rust is. Streaks below the cap usually mean moisture has been getting behind a loosened cap or flashing, and reseating those with a clean and inspection is often enough. Rust-through along the lock seams is a replacement of the affected section. A homeowner in a 1970s-era Fort Collins house typically notices streaks and a smoky downdraft after a windy stretch, and the cause traces back to a loosened cap letting water into the galvanized sections; a qualified pro pulls the cap, checks the seams and clearances, cleans the soot and creosote, then either reseats the cap and flashing or fits the correct OEM section. We’ll show you the evidence before recommending either path. Call (855) 632-3564 for a free estimate.
Yes, in most cases. A liner inside an original brick chase means there are two systems to verify, and a standard clean only addresses the flue. A Level 2 inspection covers the masonry, the liner, the connections, and the clearances. In Fort Collins’s older brick chimneys, that combined check is what catches mortar problems behind a liner that looks fine from above.
Most often a termination that has loosened from the wall. High winds work on the exterior fitting, and once it pulls away, air and moisture get in and the appliance backdrafts on gusty days. The fix is reseating and re-flashing the termination, then checking the venting for any moisture damage. If yours backdrafts whenever the wind picks up, it’s worth having it looked at before it does more than smoke.
Yes. Water gets into small joints and seams, freezes, expands, and opens them further through repeated cycles. Intense sun and dry air age the sealant at collar joints and crowns at the same time, so the two work together. A cap or crown that’s cracked will keep letting water in until it’s repaired. When our inspection shows a crown or cap that can safely wait, we say so; when it can’t, you’ll have the photos.
No. The retrofit sits inside a chase with its own condition to verify, and a clean only clears the liner itself. Pulling a brush through a liner that sits inside cracked clay tile or failing mortar can do damage if nobody has confirmed what’s around it. A Level 2 inspection before cleaning is the sensible order. Call (855) 632-3564 – estimates are free.
Service Areas Near Fort Collins
Beyond Fort Collins itself, we serve homeowners in Greeley, Longmont, Dacono, Lochbuie and Erie. Each has its own mix of masonry and prefab chimneys, and the same freeze-thaw and wind conditions apply across the Front Range. If you’re just outside Fort Collins, call and we’ll confirm coverage for your address. You can also read more about DuraFlex systems and what Fort Collins homeowners ask us most, or check our Greeley and Longmont pages.
Book Your DuraFlex Service in Fort Collins Today
Get your DuraFlex system inspected, cleaned and repaired before the October cold snap, by specialists who work in chimneys only. We’ll give you a free written estimate and camera evidence of what your system actually needs. Call (855) 632-3564. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday, Saturday closed.
Written by the team at Chimney Sweep Greeley.