Gas fireplace service
Sweep & inspection
Caps & crowns
Flue relining
Masonry repairLevel 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.
Why Westminster Homeowners Choose DuraFlex Chimney Cleaning
We provide independent DuraFlex chimney cleaning service in Westminster, and what sets our work apart is that we diagnose a DuraFlex installation by its components – the liner, the tee, the top plate, the cap – instead of guessing at the first thing that looks wrong. DuraFlex is a flexible stainless steel chimney liner, one of the most common relining products in Front Range homes, and the way it fails is specific enough that it rewards a sweep who works on it routinely. We’re an independent DuraFlex service provider with no affiliation to or authorization from the manufacturer, so our only interest is what your liner actually needs. Call (844) 785-0715. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. Our technicians have up to 9 years of experience.
Why Trust Hillcrest Chimney Sweep for Your DuraFlex Chimney Cleaning?
A DuraFlex liner is a stack of parts working together. The pipe sits inside the flue, the tee joins it at the bottom, the top plate and flashing collar close the opening at the crown, and a cap covers the whole thing. Each piece has its own failure pattern, and each one gets checked on its own terms. That’s the difference between a sweep who knows DuraFlex and a sweep who mostly knows masonry flues.
We use quality parts that fit DuraFlex equipment: replacement tee caps, top plates, storm collars and matching liner sections from the same product family. Those parts are made to work together. Mixing alloys or diameters to save a few dollars usually creates fit and corrosion problems that show up at the bottom fitting two winters later.
We also work warranty-safe. Nothing we do involves cutting corners on a liner, and we document what we find so you have a record. If a repair is beyond the point where parts make sense, we say so plainly rather than selling a patch on a failing system. We inspect it, sweep it, and fix it under one roof, which means no handoffs between contractors.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common DuraFlex Chimney Cleaning Problems We Fix in Westminster
These are the DuraFlex issues we run into most across Westminster, and why they happen.
- Creosote packed into corrugations. Corrugated DuraFlex pipe has ridges running its length, and creosote collects in those valleys. A brush rides across the peaks and glazes over the low spots, so deposits build where the bristles can’t reach. This is the single biggest reason a corrugated liner is harder to sweep clean than a smooth-wall one, and it’s why the sweep has to be sized to the liner diameter rather than the masonry flue.
- Pitting on 304-alloy sections from an oversized or uninsulated flue. When a liner is undersized for the appliance or left uninsulated inside a large masonry flue, the flue gases cool before they leave the top. Cool gases condense. Moisture and creosote sit against the steel, and 304-alloy sections pit first. Westminster’s wide temperature swings push this harder than a milder climate would.
- Corroded bottom fitting from a badly sealed tee or cap. A tee or cap assembly that wasn’t clamped or sealed correctly lets water in at the top. It tracks down the outside of the liner and pools at the bottom fitting, corroding the tee and staining the firebox below. Homeowners usually notice the stain before they notice the leak.
- Crown and flue tile rot from a bad top plate or missing storm collar. If the top plate or flashing collar was sealed with the wrong product, or installed without a storm collar, rain runs down the outside of the liner rather than shedding off the crown. Over a few seasons that rots the crown and the flue tile. This kind of water damage is easy to miss from the ground and shows up on a roof-level look.
- Liner crush or separation after a chimney fire or a settling masonry chimney. A hot chimney fire can warp a flexible liner, and a masonry chimney that has shifted can pinch or separate the pipe. Either one is a replacement conversation, not a sweep. A camera inspection tells us which.
DuraFlex Parts & Our Repair-vs-Replace Approach
Our default is to repair with DuraFlex’s own replacement components where the existing system is sound. Tee caps, top plates, storm collars and matching liner sections from the same family are the right call when the pipe itself is intact, because they fit and they don’t introduce a corrosion mismatch. We don’t claim to keep genuine DuraFlex parts in stock or to be a DuraFlex dealer. We use quality parts that fit your equipment, and we explain which ones and why before we start.
When the liner is pitted through, crushed, or undersized for the appliance, honest work means recommending a reline rather than patching a failing system. A patch on a liner that’s already losing its wall buys you a season at best. We’ll tell you which situation you’re in, and we’ll show you the camera evidence before you decide. Call (844) 785-0715 for a free estimate.
Our DuraFlex Service Process – Step by Step
- 1
Diagnosis. Every DuraFlex job starts with a Level 2 inspection. We camera the liner, check the tee and cap, look at the top plate and flashing collar from the roof, and size up whether the liner matches the appliance. You see what we see.
- 2
Sweep or repair. If it’s a cleaning, we use a rotary or poly brush sized to the liner diameter, with the right head for corrugated or smooth-wall pipe. If it’s a repair, we replace the failed component – the top plate, the storm collar, the tee cap – with a part that fits the existing system.
- 3
Test. After a top-plate or cap repair, we run water across the crown to confirm it sheds instead of tracking down the outside of the liner. After a sweep, we pull the camera back through to confirm the corrugations are clear.
- 4
Documentation and warranty-safe handoff. You get a photo report and a written summary of what was done, so you have a record for your insurer or for the next owner.
See the difference
Before
After
Before
After
Before
AfterDuraFlex Products We Service & Install in Westminster
We service and install the full DuraFlex liner assembly. That includes DuraFlex SW smooth-wall stainless liner kits, where the smooth interior makes sweeping far easier than corrugated pipe. It includes the DuraFlex corrugated flex liner in 316L and 304 alloy, the workhorse product in older Westminster ranches and split-levels where the flue needs a bend. We handle DuraFlex insulated liner kits, the pre-insulated two-ply product that keeps flue gases hot enough to leave instead of condensing. And we service the tee, top plate and multi-flue cap assemblies sold with those systems, which is where most water problems start. We work on what’s already in your chimney or install a replacement; we don’t claim to keep these products in stock.
We Also Service These Brands
DuraFlex isn’t the only liner system in Westminster, so we’re not a single-brand shop. We work with HeatShield, the ceramic resurfacing system used for repairing a liner that doesn’t need full replacement, and with Gelco for caps, covers and ventilation components. Knowing several product lines means we can tell you which repair actually fits your chimney instead of forcing one product onto every job.
FAQs – DuraFlex Chimney Cleaning Service in Westminster
No. We are an independent DuraFlex service provider. We’re not affiliated with or authorized by the manufacturer, we’re not a DuraFlex dealer, and we don’t claim factory training or certification from them. What we offer is familiarity with how DuraFlex systems are built and how they fail, gained from working on them, not from a manufacturer program.
Yes. We use quality replacement components that fit DuraFlex systems – tee caps, top plates, storm collars and matching liner sections – so the repair works with what’s already in your chimney. We don’t claim to stock genuine DuraFlex parts, and we tell you what part we’re using and why before the work starts. Call (844) 785-0715 for a free estimate.
Most DuraFlex cleanings finish in a couple of hours, and a top-plate or cap replacement adds somewhat to that. A full reline takes most of a day. The written estimate sets the scope before we start, so you know what you’re getting and how long the job should run. Call (844) 785-0715 for an exact quote.
We service DuraFlex SW smooth-wall liner kits, the corrugated flex liner in 316L and 304 alloy, insulated pre-insulated liner kits, and the tee, top plate and multi-flue cap assemblies that go with them. If you’re not sure which product you have, a Level 2 inspection will tell us by looking at the liner wall and the fittings. Call (844) 785-0715 to set one up.
Proper service shouldn’t void a liner warranty, and a documented inspection and sweep is exactly the kind of record a warranty claim would want. We don’t claim to endorse or administer DuraFlex’s warranty, since we’re independent of the manufacturer. We keep a photo report of the work so you have proof of what was done and when. Call (844) 785-0715 for a free estimate.
Pricing is per job by written estimate, and the estimate is free, so the final number depends on what your liner and fittings actually need. We don’t charge a service-call fee, and the written estimate is the final price. Call (844) 785-0715 for an exact quote.
Not quite. Corrugations trap glazed creosote in the valleys where a brush can’t reach, so a corrugated liner is harder to clean thoroughly than smooth-wall pipe. A rotary or poly brush sized to the liner diameter removes most of it, but heavily glazed corrugated liners sometimes need a chemical treatment as well. A camera inspection shows exactly what’s left behind. Call (844) 785-0715 to book one.
Warm, humid summer air hits cool creosote deposits on the liner wall and the smell comes back up the flue. It’s a sign there’s still glaze left from the last burn season, not that anything has failed. A sweep before the next burn season clears it. Call (844) 785-0715 for a free estimate.
An undersized liner shows up as smoke spillage, poor draft and heavy condensation on the liner wall. The fix is to compare the liner’s inside diameter to the appliance’s flue collar requirement, which is part of a Level 2 inspection. We’ll tell you the number and what it means. Call (844) 785-0715 for a free estimate.
Usually a repair. A loose or unsealed top plate, or a missing storm collar, is a component-level fix with a part that fits your existing liner. Replacement only comes up if the water has rotted the crown or flue tile underneath, which a roof-level look will confirm. Call (844) 785-0715 for a free estimate.
Often yes. A DuraFlex liner terminates at a top plate and uses a cap sized to the liner and flue opening, which isn’t always the same as a cap made for a bare masonry flue. A cap that doesn’t seat right lets rain in at the top. We size the cap to the liner, not the other way around. Call (844) 785-0715 for a free estimate.
Book Your DuraFlex Service in Westminster, CO
If you have a DuraFlex liner in Westminster and want it inspected, swept or repaired, call us at (844) 785-0715 for a free estimate. We’re an independent DuraFlex service provider, so our only interest is what your chimney needs. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. We’re closed Saturday.
Written by the team at Hillcrest Chimney Sweep.