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 Easton: What to Know First
We provide independent DuraFlex fireplace services in Easton, Pennsylvania, for gas fireplaces, wood-burning units, fireplace inserts, and damper or firebox repairs. Most DuraFlex jobs we book are completed in a single visit, and we quote the full price before any work begins. We’re not the cheapest outfit in the Lehigh Valley, and we don’t try to be - we charge for the job done right, with DuraFlex-compatible parts that won’t void what warranty you have left. If you own a DuraFlex liner, insert, or gas log set in Easton and need service, repair, or an honest assessment of whether the unit is worth fixing, call us at (610) 756-1504. We’ve worked on DuraFlex products in the older homes near the Delaware Canal and in the newer construction up toward Forks Township, so we know how Easton’s freeze-thaw cycles and hard water affect these systems differently than they do in other markets.
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 liner) - crevice corrosion at the flex joints. In Easton, we see this more than DuraFlex’s marketing suggests. The SW’s 316Ti alloy resists acid well, but the corrugated flex sections trap condensation where the chimney runs through unconditioned attic space, which is common in the colonials near College Hill. We cut out the damaged section and splice in OEM DuraFlex SW with a factory-approved coupling, or we sleeve with DuraFlex Pro if the whole run is thinning. We don’t patch with generic flex - it voids the warranty and won’t nest properly.
- DuraFlex Pro (heavy-wall liner) - thermal expansion noise mistaken for “animals in the chimney.” The Pro’s heavier gauge makes it quieter than the SW under normal burn, but when it’s oversized for the appliance or the top plate was shimmed wrong during original install, the expansion tick can sound like a trapped squirrel. We see this in Easton’s 1980s and 90s splits where a Pro liner was retrofitted to a factory-built fireplace without proper top support. We pull the top, check the support plate spacing against DuraFlex’s 1/4-inch-per-foot spec, and reset it with the right hardware. Usually no new liner needed.
- DuraFlex DVL (double-wall black pipe) - inner wall separation at the slip joints. DVL is for interior venting, not chimney liner duty, but Easton homeowners call us when their gas insert starts sooting the glass or the CO detector chirps. The inner wall can pull back from the slip joint if the installer didn’t engage the locking tab fully, or if years of thermal cycling walked it loose. We inspect with a borescope, reseat or replace the affected section with new DVL (not aftermarket black pipe - the tolerances are wrong), and test draft and spillage before we leave.
- DuraFlex gas log sets - failed thermopile in the 18-inch and 24-inch vented units. The thermopile generates the millivolts to hold the gas valve open. After 8-12 years in Easton’s hard water areas (the city water runs high in mineral content), the pilot orifice crusts and the thermopile weakens. Homeowners get intermittent pilot dropout or a burner that won’t stay lit. We clean the pilot assembly with the right orifice drill size, test thermopile output under load, and replace with the DuraFlex OEM part or a White-Rodgers equivalent we know works. We don’t guess - we measure.
- DuraFlex insert surround panels - warped or discolored steel from overfiring. The factory panels are 22-gauge powder-coated steel. When a homeowner burns wet wood or runs the insert with the bypass open too long, the panels buckle at the corners or the finish chalks. DuraFlex doesn’t sell replacement surround kits for every vintage insert, but we fabricate matching panels from 20-gauge steel with a higher-temp powder coat, or we source through our Copperfield supply house if the series is still current. We match the reveal and mounting holes so it looks like it belongs there.
Our DuraFlex Fireplace Services Process
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Call and schedule. A live person answers, 24 hours a day. We ask the model number if you have it, the symptoms, and whether the unit is gas or wood. We give you a arrival window and a call-ahead.
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Level-2 camera inspection. Our tech arrives in uniform, lays down runners, and runs a camera through the flue or venting. You see the footage on the screen. We document cracks, corrosion, blockages, or install errors with photos you keep.
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Plain-English verdict and upfront price. Russell or one of our senior techs explains what’s wrong, what we recommend, and what it costs. If the fix can wait, we say so. If it’s unsafe to operate, we shut it down and tag it. No surprises on the bill.
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OEM or quality aftermarket parts selection. We stock common DuraFlex consumables - thermopiles, gaskets, DVL sections, flex couplings. For obsolete parts, we source through our distributor network or fabricate to spec. We never install a part we wouldn’t put in our own home.
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Repair, test, and document. We complete the work, run combustion analysis on gas units or a smoke test on wood, and give you a written report with photos. The 90-Day Done Right Promise goes into effect automatically.
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Cleanup and closeout. We haul away old parts, vacuum the hearth area, and review the work with you. If the flue is clear and the mortar is sound, that’s all the good news you need.
What DuraFlex Fireplace Services Costs in Easton
These are the ranges we see most often for DuraFlex fireplace work in the Easton area. Your exact price depends on access, parts availability, and what the camera shows.
- DuraFlex gas fireplace service and tune-up: $180-$260. Includes pilot cleaning, thermopile test, burner inspection, and safety check.
- DuraFlex thermopile or gas valve replacement: $340-$520. OEM part, installed and tested.
- DuraFlex SW liner section repair (splice or coupling): $580-$890. Includes camera inspection and written report.
- DuraFlex Pro top support reset or repair: $420-$680. Requires roof access; price varies with pitch and height.
- DuraFlex insert surround panel fabrication: $280-$450 per panel. Powder-coated to match.
- DuraFlex DVL slip joint reseat or section replacement: $240-$380. Draft test included.
We charge a flat $89 for our Seasonal Tune-Up special, which applies to most DuraFlex gas units. Every repair over $250 qualifies for $50 off. Seniors and veterans save 5% on every job, every day. We quote the full price before we start, and that’s the price on the invoice. Call (610) 756-1504 for a free estimate - we bring the camera, you get the facts.
Why Easton Homeowners Call Hearthstone Chimney Co. for DuraFlex Work
We’ve been in Easton long enough to know which DuraFlex installs were done by the same two or three contractors who dominated the area in the 1990s, and we know their common shortcuts. Our 90-Day Done Right Promise means if we miss something, we come back - in writing, no arguing. Our techs carry DuraFlex-compatible parts plus backup from HeatShield and Gelco for situations where a DuraFlex component is obsolete or the original design needs reinforcement. Most jobs finish in one visit because our trucks are stocked for what actually breaks. Russell Haines started this company in 1984 after learning the trade hands-on at Los Angeles Trade-Technical College, and he’s built it on a simple idea: tell people what their chimney needs, what it doesn’t, and do the work so you don’t have to think about it again. We’ll be there when we say. Photos you can see, a plain-English verdict. Done right - and we stand behind it.
FAQs
No. As an independent DuraFlex service provider, we use OEM or warranty-compatible parts and follow manufacturer installation specs. DuraFlex warranties cover defects in materials and workmanship, not who performs routine service or repair. We document our work with photos and serial numbers so any future warranty claim has clean paperwork. If you’re unsure about your warranty status, call us at (610) 756-1504 and we’ll help you check.
Most common DuraFlex parts - thermopiles, gaskets, DVL sections, SW couplings - are on our trucks or available next-day through our distributor in Allentown. Obsolete insert panels or discontinued liner sizes may take 3-5 business days. We never leave you without heat if it’s avoidable; if a part is delayed and the unit is unsafe, we’ll explain your temporary options clearly.
Replace it if the firebox is cracked, the heat exchanger is compromised, or repair costs exceed 60% of a new unit installed. Repair it if the issue is isolated - a failed thermopile, a warped surround panel, a loose DVL joint. We’ll show you the camera footage and give you both numbers so you can decide. No pressure either way. Call (610) 756-1504 for a free estimate.
Once per burning season if you use it regularly, per NFPA 211. Easton’s hardwoods - oak and maple from the surrounding county - burn relatively clean, but the freeze-thaw cycles here open hairline cracks in masonry that can affect draft and creosote buildup. We recommend a Level-2 inspection every two years even if you sweep annually. The $89 Seasonal Tune-Up includes a basic inspection; the full camera inspection is additional and worth it.
Delayed ignition, sooting, and carbon monoxide risk increase. The thermopile weakens gradually, so you may not notice the pilot struggling until it fails on the coldest night. We find spider webs in the burner orifices regularly in Easton homes near the river - the damp attracts them. Annual service prevents the emergency call. Call (610) 756-1504 to book before burning season fills our schedule.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Easton and nearby areas.




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