Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
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 Gas Fireplace Repair in Fort Worth: What to Know First
We’re an independent DuraFlex service provider in Fort Worth, and we repair these gas fireplace systems regularly. Most DuraFlex gas fireplace repairs are completed in a single visit, and you’ll always get a written price before we start. That means no surprise charges, no vague verbal estimates, and no “we’ll see what we find” pricing games.
This page is for Fort Worth homeowners who own a DuraFlex gas fireplace or venting system and need it diagnosed or repaired. If you’re noticing intermittent flames, a pilot that won’t stay lit, unusual odors, or a fireplace that shuts off mid-use, call (682) 900-6393. A real person answers, 24/7.
How DuraFlex Products Fail – and How We Fix Them
DuraFlex makes flexible aluminum and stainless steel venting components used in gas fireplace and direct-vent systems. The brand shows up most often in Fort Worth homes as part of the fireplace’s vent run, not as the fireplace itself. Here’s what we actually see fail, and what we do about it.
- DuraFlex Direct-Vent Flex runs with crushed inner liners. The inner liner on DuraFlex direct-vent components is thin by design, and we see it crushed or kinked in older Fort Worth homes where the original install pulled the flex through tight framing. The symptom is a fireplace that lights but won’t stay running, or a lazy yellow flame when it should be blue. The gas appliance is starving for combustion air. Our fix is replacing the damaged flex section with the correct DuraFlex direct-vent component rated for the unit’s BTU load, not a generic pipe that happens to fit.
- DuraFlex gas fireplace connector joints with dried-out gaskets. On older DuraFlex connector kits, the gaskets at the appliance collar dry out and shrink over five to seven years of heating cycles. Homeowners notice a faint gas or exhaust smell near the fireplace that comes and goes. We replace the gasket, verify the connector is seated, and run a combustion test to confirm the vent is pulling correctly. This is a sub-$200 repair most of the time, not a liner replacement.
- DuraFlex flex connectors with pinhole corrosion at the base. In Fort Worth, the swing between dry winters and humid springs puts condensation on the outside of gas vent connectors where they pass through cooler wall cavities. On older DuraFlex aluminum connectors, that condensation can lead to pinholes. The symptom is soot streaking on the fireplace glass or a fluttering flame. We replace the corroded connector section and inspect the run for additional weak spots before closing up.
- Mis-matched aftermarket parts causing venting turbulence. We regularly find Fort Worth fireplaces where a previous repair swapped a DuraFlex component for an off-brand part that doesn’t seat cleanly. The tell is a fireplace that works fine for 20 minutes, then the flame drops or the unit trips a safety switch as venting performance degrades with heat. We pull the mismatched part and install the correct DuraFlex component, then document the repair with photos before and after.
- DuraFlex vent runs with sagging horizontal sections. Direct-vent and gas fireplace venting has to maintain pitch. In Fort Worth attics, where summer heat cycles loosen support straps, DuraFlex horizontal runs sag and trap moisture. You’ll see rust staining at the lowest point, and the fireplace may produce a sulfur or wet-metal odor on startup. We re-pitch the run, replace any damaged strapping, and add condensation drains where the DuraFlex installation manual calls for them.
Styles & brands we work with





Our DuraFlex Gas Fireplace Repair Process
Here’s what happens when you call Hadley Chimney Fort Worth for a DuraFlex repair in Fort Worth.
- 1
You call. A live person answers at (682) 900-6393. We ask what the fireplace is doing, how old it is, and whether you know what venting components are installed. If you don’t know, that’s fine. We’ll figure it out on site.
- 2
We arrive with a real window. You get live arrival tracking, not a four-hour guess. Our techs are background-checked and uniformed.
- 3
We diagnose with a camera. We run a camera through the vent run to see the actual DuraFlex components, looking for kinks, corrosion, gasket failure, or pitch problems. As Cory Mitchell says, “I’d rather show you a photo of the problem than hand you a bill you don’t understand.” You’ll see exactly what we see.
- 4
You get a written price. Before we touch a wrench, you get the repair cost in writing. If we recommend a component replacement, we’ll tell you whether we’re using OEM DuraFlex or a quality aftermarket equivalent and why.
- 5
We repair and test. After the repair, we fire the unit, confirm proper venting with a combustion analyzer, and run the fireplace through a full cycle. We check flame color, draft, and any safety switch that was tripping.
- 6
You get the guarantee. Every repair carries a 365-Day Done Right Promise: a written guarantee on every repair, and a free second visit if the repair fails within 365 days. It’s standard, not an upsell.
See the difference
Before
After
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After
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AfterWhat DuraFlex Gas Fireplace Repair Costs in Fort Worth
Most DuraFlex repairs we handle in Fort Worth land between $165 and $850, with the spread driven by what we find inside the vent run.
- Gasket replacement or connector reseating: $165 to $225
- Flex section replacement (short run, accessible location): $275 to $475
- Full DuraFlex connector replacement including testing: $450 to $700
- Vent run re-pitch with new strapping and drain installation: $350 to $650
- Repairs in tight attic or chase spaces that require extra access work: add $100 to $250
The price moves based on access, how much of the run needs replacement, and whether OEM DuraFlex parts are required for warranty or code reasons. You’ll always know the number before work starts. Call (682) 900-6393 for a free estimate, and we’ll tell you what we think the job needs before we come out.
Why Fort Worth Homeowners Call Hadley Chimney Fort Worth for DuraFlex Work
We’ve been doing chimney and fireplace work since 2003, and we’ve seen enough DuraFlex installs across Fort Worth to know the difference between a bad vent run and a bad fireplace. That experience means we don’t throw parts at a problem until something sticks. We diagnose first, show you the evidence, and fix what’s actually broken.
When a fireplace needs a repair that goes beyond the DuraFlex components, we’ll tell you straight. HeatShield ceramic repair compound handles firebox and smoke chamber damage. Gelco products cover masonry water protection. But if your DuraFlex venting needs work, that’s what we’ll fix, and we won’t upsell you into anything the camera didn’t show. Every job includes the Relay Visibility Guarantee: live arrival tracking, before-and-after photos, and digital invoicing. We’re part of the Relay Home Co. family, and we hold ourselves to The Relay Standard on every visit.
FAQs
No, not if the repair is done correctly. DuraFlex warranties cover manufacturing defects in their components, not installation or service work. Using OEM DuraFlex parts for replacements keeps the component warranty intact. As an independent DuraFlex service provider, we follow the installation specifications for every repair, because a bad install voids more warranties than any repair ever does. Call (682) 900-6393 if you’re unsure what’s covered, and we’ll tell you what we found before we quote anything.
Most common DuraFlex gas fireplace connectors, gaskets, and flex sections are available through our local Fort Worth suppliers within one to two business days. We stock the most-failed sizes and components on our trucks, so many repairs in Fort Worth are completed the same day. If your fireplace needs a less common DuraFlex component, we’ll tell you the lead time before you commit. Call (682) 900-6393 and we’ll check availability while you’re on the phone.
Repair if the damage is localized: one corroded connector, one kinked section, one failed gasket. Replace if we find multiple pinholes across the run, significant sagging in areas that can’t be re-pitched, or venting that no longer meets current code for your fireplace’s BTU rating. We’ll show you the camera footage so you can see the difference yourself, and the written quote will break down repair versus replacement costs side by side. That way you decide with information, not pressure.
Most Fort Worth appointments are scheduled within three to five days, and we’ll give you a live arrival window with tracking on the day of the visit. If you smell gas or suspect a venting failure, call (682) 900-6393 immediately. We’ll tell you over the phone whether to shut off the gas, and get you scheduled as quickly as our schedule allows. A real person answers, 24/7.
Yes, and it’s standard on every visit. You can’t see a crushed inner liner, a failed gasket, or pinhole corrosion from the outside of the venting. Without a camera inspection, you’re paying for a guess. We run the camera, show you what we find, and then quote the repair based on what’s actually there. No one should hand you a bill for work you didn’t see evidence for. Call (682) 900-6393 and we’ll walk you through what the camera inspection includes.
Written by Cory Mitchell, Owner, Hadley Chimney Fort Worth at Hadley Chimney Fort Worth, serving Fort Worth and nearby areas.