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 West Palm Beach: What to Know First
DuraFlex gas fireplace repair in West Palm Beach typically costs $185 – $420 for common burner, pilot, and valve issues, and most jobs are completed in a single visit once parts are confirmed. We work on DuraFlex venting and liner systems in gas fireplaces throughout West Palm Beach, including the older direct-vent units tucked into 1950s ranch homes and the newer insert setups in gated communities off Okeechobee Boulevard. As an independent DuraFlex service provider, we’re not tied to manufacturer pricing or parts delays, so we’ll tell you honestly whether a repair makes sense or whether you’re better off replacing the component. Call (728) 203-8687 for a free estimate and a written price before any work begins.
This page is for West Palm Beach homeowners who own a gas fireplace with DuraFlex venting or liner components and want a straight answer on what’s wrong, what it costs, and whether it’s safe to keep using. Ruben Castellano and our crew have worked on enough DuraFlex systems in this area to know which failures are common, which are rare, and which ones a homeowner should never ignore.
How DuraFlex Products Fail – and How We Fix Them
DuraFlex is known for its aluminum and stainless steel flexible liners and venting, and in West Palm Beach the combination of salt air, humidity, and seasonal use creates a specific pattern of wear. Here’s what we see most often on gas fireplace repair calls:
- DuraFlex 304 stainless liner pitting near the termination cap. Salt-laden air off the Atlantic accelerates corrosion where the liner meets the cap, even on stainless. We’ve pulled liners in West Palm Beach homes along Flagler Drive that looked fine from the firebox but had dime-sized perforations near the top. The fix is a section replacement or full liner swap, done with materials rated for coastal exposure.
- DuraFlex aluminum liner kinking behind the firebox. Aluminum liners are lighter and easier to work with, but a kinked section restricts draft and can cause the fireplace to shut down intermittently or produce a lazy yellow flame. This shows up in homes where the original install routed the liner through a tight offset. We straighten or replace the run and verify draft with a manometer before closing up.
- DuraFlex direct-vent termination screens clogged with salt residue and debris. West Palm Beach’s coastal air leaves a fine gritty film on vent screens that doesn’t happen inland. A clogged screen starves the burner and can trigger the spill switch. We clean or replace the screen and test the full vent path.
- Failed factory gaskets on DuraFlex adapter collars. The gasket material breaks down faster in humid climates, and a failed gasket lets combustion gases seep into the wall cavity instead of going up the flue. We see this on older DuraFlex vented gas logs. Replacement is straightforward, but it requires pulling the unit forward and resealing with high-temp silicone rated for gas appliance use.
- Improperly modified DuraFlex runs from previous handyman repairs. We’ve found flex liners spliced with aluminum tape, sections joined with sheet-metal screws, and liner runs wedged into masonry with no insulation wrap. These are fire hazards, plain and simple. Our fix is to cut out the improvised section and rebuild the run to the manufacturer’s original specification using proper couplers and support.
Styles & brands we work with





Our DuraFlex Gas Fireplace Repair Process
When we come out for a DuraFlex gas fireplace repair in West Palm Beach, here’s the sequence. No shortcuts, no surprises.
- 1
Identity confirmed at the door. You’ll have our technician’s name and photo before we arrive, and they’ll show a photo ID badge when you answer. No exceptions, ever.
- 2
Full system inspection. We check the burner, pilot assembly, gas valve, thermocouple or thermopile, venting path, and the entire DuraFlex liner run from firebox to termination cap. We use a camera to inspect the liner interior when access allows.
- 3
Written diagnosis and price. Before any work starts, you get a written price. If the issue is minor and safe to defer, we’ll tell you that too. We don’t manufacture urgency.
- 4
Parts decision. For DuraFlex components, we use OEM parts when they’re available locally or within a reasonable lead time. When an OEM part is backordered or discontinued, we’ll explain the quality aftermarket alternative and get your approval before ordering.
- 5
Repair and test. We complete the repair, then run the fireplace through a full startup and shutdown cycle. We check draft, flame pattern, and gas pressure. For liner work, we verify the entire run with a camera before sealing the wall or chase.
- 6
Cleanup and written guarantee. We leave the workspace cleaner than we found it. Every repair carries a written guarantee, and if the repair fails within the coverage period, the second visit is free. That’s the 365-Day Done Right Promise.
See the difference
Before
After
Before
After
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AfterWhat DuraFlex Gas Fireplace Repair Costs in West Palm Beach
Straight numbers, because that’s what homeowners actually want.
- Diagnostic visit with camera inspection: $89 – $129, credited toward the repair if you proceed
- Thermocouple or thermopile replacement: $185 – $275 depending on access
- Pilot assembly rebuild or replacement: $220 – $380
- Gas valve replacement: $310 – $520
- DuraFlex liner section repair: $340 – $700 depending on length and access
- Full liner replacement (aluminum): $900 – $1,600
- Full liner replacement (316 stainless steel): $1,400 – $2,300
What moves the price: how accessible the firebox and chase are, whether we’re working behind drywall or in an open chase, and whether the liner run has tight offsets. Salt-corrosion damage near the coast adds labor because corroded fittings often need to be cut out rather than unthreaded. Every quote is written before work starts, so the number we give you is the number you pay. Call (728) 203-8687 for a free estimate.
Why West Palm Beach Homeowners Call Alcott Chimney West Palm Beach for DuraFlex Work
Ruben Castellano has been working chimneys full-time since his days at Los Angeles Trade-Technical College, and he’s served West Palm Beach long enough to know which homes off Southern Boulevard have original clay-tile flues and which ones got retrofitted with DuraFlex in the early 2000s. We carry and install the trade brands chimney professionals actually specify, DuraFlex included, along with HeatShield resurfacing and Gelco sealants for when the problem isn’t just the liner but the masonry around it. Every technician who comes to your door is background-checked and identity-verified under the Threshold Standard, and you’ll know their name and see their photo before the truck rolls up. We answer the phone with a live person around the clock. And every repair is backed by a written guarantee with a free return visit if it fails. That’s the whole point: certainty instead of guesswork. As Ruben puts it, “If I wouldn’t put it in writing, I won’t say it to your face – and the other way around.”
FAQs
In most cases, no. DuraFlex warranties cover material defects in the liner or venting components, not labor or components like gas valves, pilot assemblies, or burners. A properly performed repair using compatible parts does not void the liner warranty. We document every repair and can provide photos and notes if you need them for a warranty claim.
If our camera inspection shows perforations, separated seams, or corrosion that covers more than a few inches of the liner run, replacement is the honest call. Small isolated damage can sometimes be addressed with a section repair, but a liner that’s failing in multiple spots isn’t worth patching. We’ll show you the camera footage and explain what we’re seeing. Call (728) 203-8687 and we’ll give you a written quote either way.
Yes. We keep common DuraFlex couplers, adapter collars, and termination caps on the truck, and our local supply chain in South Florida means most OEM and approved aftermarket parts arrive within three to five business days. If a part is backordered, we’ll tell you the real timeline before you commit to anything.
Usually not. Intermittent shutdown is typically a thermocouple, thermopile, or spill switch issue rather than a liner problem. In West Palm Beach specifically, we also see this from clogged termination screens due to salt residue and debris. We diagnose the exact cause during the inspection rather than guessing.
Most non-emergency repairs are scheduled within two to five business days. If you smell gas or suspect a leak, leave the house and call your gas utility first, then call us at (728) 203-8687. Someone answers that line 24 hours a day.
Written by Ruben Castellano, Owner, Alcott Chimney West Palm Beach, serving West Palm Beach and nearby areas.