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 Huntington: What to Know First
We provide independent DuraFlex fireplace services in Huntington, from gas fireplace tune-ups to firebox repairs and full insert installations. Most DuraFlex jobs we book are completed in a single visit, with upfront pricing agreed before we start. We don’t sell you a liner you don’t need, and we don’t quote a repair without showing you the camera footage first.
This page is for Huntington homeowners who already know they’ve got DuraFlex components in their fireplace system and want a technician who recognizes the part numbers without looking them up. If you’re in Huntington Bay, West Hills, or anywhere along the North Shore where the salt air works on everything metal, we’ve likely serviced a DuraFlex unit on your street. Call (631) 776-4075. A live person answers, 24 hours a day.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex 304 and 316 alloy chimney liners - the 304 series, common in Huntington gas conversions from the early 2000s, develops pinpoint corrosion at the flex points where condensate pools. The 316 holds up better but costs more upfront. We camera every foot to find the breach, then sleeve or replace with matching alloy so your warranty terms stay intact.
- DuraFlex DVL double-wall stovepipe connections - the telescoping section on DVL assemblies loosens over seasons of thermal cycling, especially in Huntington’s freeze-thaw winters. You smell smoke in the room but see no visible leak. We reseat with fresh DuraFlex compression bands and test with a smoke pencil; no guesswork.
- DuraFlex PelletVent Pro termination caps - the factory cap on pellet installations clogs with ash fines faster than the owner expects, and the pressure switch trips. We’ve found the 3-inch and 4-inch Pro caps in Greenlawn and South Huntington homes with this exact pattern. We clean the cap properly or upgrade to a higher-flow termination if the run is long.
- DuraFlex SLF smooth-wall liner top plates - the SLF system’s top plate sealant ages out after 15-20 years, which is right where many Huntington split-levels and capes are now. Water tracks down the smooth wall and stains the firebox. We pull the plate, reseal with high-temp silicone rated for the SLF expansion range, and document the condition for your records.
- DuraFlex gas insert flex connectors - the OEM corrugated stainless connector fatigues at the shutoff valve thread, a known issue on certain production runs. We stock the correct DuraFlex OEM replacement and the compatible brass alternative; we explain the cost difference and let you choose. Either way, we leak-test to 0.5 psi and hold it.
Our DuraFlex Fireplace Services Process
- 1
Call and schedule. A live person answers, asks what you’re seeing or smelling, and books a window. We confirm you’re in Huntington and note any DuraFlex model numbers you have handy.
- 2
Level-2 camera inspection. Our technician arrives uniformed and background-checked. We run a camera through the flue or disassemble the fireplace front to inspect the firebox, documenting everything with photos you can see on the spot.
- 3
Plain-English verdict and upfront pricing. We show you the problem, name the DuraFlex part involved, and quote the repair before any work begins. The number on the estimate is the number on the invoice.
- 4
OEM or quality aftermarket parts selection. We stock common DuraFlex components and can source same-day for less common sizes. If a HeatShield or Gelco solution makes more sense for your specific failure, we explain why.
- 5
Repair, test, and cleanup. We complete the work, pressure-test or smoke-test as appropriate, and leave the work area cleaner than we found it.
- 6
Written guarantee. You get the 90-Day Done Right Promise in writing - if it’s not right, we come back, no arguing, no paperwork chase.
What DuraFlex Fireplace Services Costs in Huntington
| Service | Typical Range in Huntington |
|---|---|
| DuraFlex gas fireplace tune-up and safety check | $89-$175 |
| DuraFlex liner inspection with camera (Level-2) | $225-$325 |
| DuraFlex firebox or refractory panel repair | $350-$650 |
| DuraFlex insert removal and reinstallation | $450-$750 |
| DuraFlex liner section replacement (per floor) | $800-$1,400 |
What moves the price: accessibility (crawl space vs. full basement), how many stories the flue runs, and whether we find secondary damage once we’re inside. We don’t speculate upward to cover ourselves. If the job’s simpler than expected, your bill reflects it.
Estimates are free. Call (631) 776-4075 for an exact quote on your DuraFlex system.
Why Huntington Homeowners Call Hearthstone Chimney Co. for DuraFlex Work
We’ve been answering the phone with a live person for over 42 years, and we plan to be in Huntington thirty years from now. That changes how you treat a customer.
Our technicians know DuraFlex part numbers without thumbing through a catalog because they’ve replaced enough of them in Huntington’s older homes. When a DuraFlex component isn’t the right solution, we have HeatShield and Gelco materials on the truck too. Every job ends with photos you can see and a plain-English verdict. The 90-Day Done Right Promise is in writing - if it’s not right, we make it right, no arguing. A clean chimney isn’t a luxury - it’s just the job done right.
FAQs
No. As an independent DuraFlex service provider, we follow manufacturer installation and repair specifications, and we document our work with photos. Warranty coverage depends on proper installation and use of correct materials, not on who performs the service. If your DuraFlex liner or component is still under warranty, we note the serial numbers and install method so your claim stays valid. Call (631) 776-4075 for an exact quote - estimates are free.
Most DuraFlex repairs we complete in a single visit, usually two to four hours on site. If we need to order a specific DuraFlex part - an unusual SLF diameter, for instance - we schedule the return visit promptly and don’t charge a second trip fee. We’ve learned to stock the common sizes because Huntington’s housing stock is predictable once you’ve worked here awhile.
We recommend replacement when the liner has multiple breach points, the alloy has thinned below manufacturer minimums, or the cost of spot repairs approaches 60 percent of a new installation. We show you the camera footage and explain which condition yours is in. Sometimes a HeatShield resurfacing is the smarter middle path, and we’ll say so if it is.
We stock the common DuraFlex flex lengths, DVL connectors, and termination components on our trucks. For less common sizes - certain PelletVent Pro configurations or older 304 alloy diameters - we source same-day or next-day from regional distributors. We don’t start a job until we have the correct part in hand.
Once a year, before the heating season starts. Gas fireplaces burn cleaner than wood, but the DuraFlex venting system still accumulates debris, and the burner orifices can drift out of spec. Huntington’s coastal air adds corrosion risk to metal components. Our $89 Seasonal Tune-Up covers the inspection, cleaning, and safety check for most DuraFlex gas units.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Huntington and nearby areas.




Before
After
Before
After
Before
After