Level 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 Fireplace Services in Littleton: What to Know First
We provide independent DuraFlex fireplace services in Littleton, from gas fireplace service and wood burning fireplace repair to fireplace insert installation and firebox repair. Most DuraFlex jobs are diagnosed, quoted in writing, and completed within a single visit once parts are on hand. You’ll see camera footage of the problem before any work starts, and you’ll have a written price and warranty in hand before we touch a tool.
This page is for DuraFlex owners in Littleton, Columbine Knolls, and nearby neighborhoods who need fireplace work done correctly the first time. Call (720) 439-4666 to speak with a live person, 24/7.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SW (Stainless Steel) liners develop creosote bridging above the smoke chamber in wood burning fireplaces. The SW’s 316Ti alloy resists corrosion, but its smooth interior can let Stage 2 creosote form hard sheets that break free and jam the flue. We run a rotary poly brush matched to the SW’s exact diameter, then camera-verify the liner wall before signing off. In Littleton’s dry climate, where homeowners often burn pine and spruce from the Front Range, we see this every burning season.
- DuraFlex AL (Aluminum) liners sag at horizontal transitions in gas fireplace insert installations. Aluminum softens faster than steel under the radiant heat of a high-output gas insert, especially where the liner turns horizontal in a chase. We replace the sagging section with DuraFlex AL rated for the BTU load, or upgrade to SW where the appliance output exceeds 80,000 BTU. Corrine Halstead’s crew has re-pitched more than forty of these in Littleton homes built between 1985 and 2005.
- DuraFlex Pro connectors loosen at the appliance collar after thermal cycling. The Pro’s twist-lock joint is fast to install, but the male-female seam can back out 1/8 inch per season in high-use fireplaces. We find this with the camera, then reseat with a fresh Pro connector and add a mechanical locking band where the original installer skipped it. The camera doesn’t have an opinion - it just shows you what’s there.
- DuraFlex DVL (Double-Wall) inner wall corrosion near the damper frame in older wood burning fireplaces. DVL’s air-insulated design traps moisture when a damper leaks cold air onto the inner liner. The rust isn’t always visible from the firebox; we catch it with the camera scan. Repair is a section replacement with fresh DVL, or a full liner switch to SW if the damage runs below the smoke shelf.
- DuraFlex relining kits ship with generic termination caps that don’t match Littleton’s wind patterns. The standard rain cap works fine in calm conditions, but the Front Range’s downslope winds can drive rain and snow straight down the flue. We source caps from our Haven buying network - Famco and Gelco options with proper wind resistance - and document the swap in your photo record under Haven Standard Clause 4.
Our DuraFlex Fireplace Services Process

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Call and schedule. A live person answers, checks DuraFlex parts availability against your model, and books a window. You get a text when your tech is en route.
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NFPA 211 Level 2 inspection with camera. We run the camera down the flue, photograph the liner condition, and record draft readings. You watch the footage with the tech.
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Written quote before any work. Haven Standard Clause 1: the price, scope, and warranty are delivered in writing. No verbal estimates, no surprises.
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Parts decision: OEM DuraFlex or quality aftermarket. We stock common DuraFlex connectors and sections. For faster turnaround on discontinued lines, we source compatible components through Olympia Chimney or Copperfield in our buying network, with full disclosure of origin.
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Repair, test, and document. The fix is completed, the fireplace is fired and tested for draft and spillage, and your photo record is archived under Haven Standard Clause 4.
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365-Day Done Right Promise. If it’s not right, we make it right. The warranty is written, dated, and in your hand before we leave.
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AfterWhat DuraFlex Fireplace Services Costs in Littleton
| Service | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex gas fireplace service (cleaning, tune-up, safety check) | $189 - $279 | Insert removal required; remote/receiver diagnostics |
| DuraFlex wood burning fireplace sweep + Level 2 inspection | $249 - $349 | Class III creosote removal; roof access difficulty |
| DuraFlex liner section repair (SW, AL, or DVL) | $340 - $680 | Number of sections; horizontal run length |
| DuraFlex fireplace insert installation with new liner | $2,400 - $4,200 | Liner length; chase construction; termination type |
| Firebox repair (refractory panel replacement) | $580 - $1,100 | Panel availability; firebrick rebuild extent |
| Damper repair or replacement | $320 - $650 | Top-sealing vs. throat damper; frame corrosion |
Every estimate is free. Bring us a competitor’s written quote and we’ll give you a free second opinion. Call (720) 439-4666 for an exact quote on your DuraFlex system.
Why Littleton Homeowners Call Level Two Chimney Littleton for DuraFlex Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009, every one with a written price before work started and a documented record when done. In Littleton, that includes heavy-use masonry fireplaces in Columbine Knolls and newer homes with factory-built chimneys in the Ken Caryl Valley area.
Our technicians are background-checked, uniformed, and assigned by name. Your tech knows DuraFlex’s product lines and carries common parts. When DuraFlex components are back-ordered, we pull from our multi-brand network - HeatShield for refractory repair, Gelco for termination hardware - without marking up the substitution.
The 365-Day Done Right Promise applies to every job. Haven Standard Clause 4 requires your photo record. And Clause 1 requires your written price. No exceptions.
FAQs
No. DuraFlex warranties cover manufacturing defects in the liner material itself, not who installed or services it. As an independent DuraFlex service provider, we document our work so any future warranty claim has clear maintenance history. Keep your photo record and invoice - that’s your evidence. Call (720) 439-4666 if you need help interpreting warranty language.
Common DuraFlex connectors, sections, and termination caps are on our shelf or available within 2-3 business days through our Haven buying network. Discontinued lines like early DuraFlex AL smooth-wall may take 5-7 days, or we can source compatible aftermarket components with your approval. We’ll tell you the timeline in writing before you commit.
We repair isolated damage - a cracked connector, a corroded section, a loose Pro joint - when the remaining liner passes camera inspection and meets NFPA 211 clearances. Full replacement is recommended when damage exceeds 20% of liner length, when multiple failure types overlap, or when the original liner is undersized for the appliance. You’ll see the camera evidence and we’ll explain which category you’re in before any paperwork.
Wood burning fireplaces with DuraFlex liners need annual sweeping and inspection per NFPA 211, especially with Front Range softwoods that deposit creosote faster than hardwoods. Gas fireplace inserts with DuraFlex AL liners should be serviced every 1-2 years for burner cleaning, vent integrity, and debris checks. We calendar your next due date and text a reminder. Call (720) 439-4666 to book.
Skipped maintenance turns small problems into expensive ones: creosote buildup in SW liners becomes a chimney fire risk; loose Pro connectors leak carbon monoxide; sagging AL liners restrict draft and soot the firebox. The camera finds these early. Waiting until you smell smoke or the fireplace won’t light usually means liner replacement instead of a $300 repair. Free estimates make the decision easy - call (720) 439-4666.
Ready to get your DuraFlex fireplace checked? Call (720) 439-4666 any time, day or night. A live person will answer, check parts for your model, and schedule your NFPA 211 Level 2 inspection. Your written quote, camera footage, and photo record are included - that’s Haven Standard Clause 1 and Clause 4, and it’s how we’ve worked since 2009.
Written by Corrine Halstead, Owner, Level Two Chimney Littleton at Level Two Chimney Littleton, serving Littleton and nearby areas.





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