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.
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After
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AfterDuraFlex Fireplace Services in Roanoke: What to Know First
We provide independent DuraFlex fireplace services throughout Roanoke, from gas fireplace tune-ups to firebox repairs and insert conversions. Most DuraFlex jobs we book are completed in a single visit, and we quote upfront so the number on the estimate matches the number on the invoice. We’re not the cheapest option in the Roanoke Valley, and we don’t try to be - we fix it once, document what we did, and stand behind it for 90 days in writing.
This page is for homeowners running a DuraFlex gas fireplace, wood burner, or insert who need a technician who knows the difference between a DuraVent DuraFlex Pro and a standard DuraFlex SS liner without looking it up. If that’s your situation, call us at (540) 787-3302. A live person answers, 24 hours a day.
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 Pro aluminum gas liner - crevice corrosion at the flex joints. In Roanoke’s wet shoulder seasons, condensation sits in the valleys between corrugations where the aluminum thins fastest. We see this on 15-year-old Pro liners in Cave Spring and Grandin Road homes more often than the manufacturer literature suggests. Our fix: pull a camera first, then replace with a DuraFlex Pro section or, if the run is short and straight, a rigid DuraVent aluminum alternative that eliminates the flex points entirely. We show you the corrosion on screen before we quote.
- DuraFlex SS (stainless) wood-burning liner - thermal fatigue cracking at the collar weld. The 316Ti alloy handles acid well but the collar-to-body weld is a stress riser. After a decade of Roanoke’s freeze-thaw cycles, hairline cracks open at the top termination. We spot this with our Level-2 camera and replace the collar with an OEM DuraFlex part or a compatible Gelco termination if the homeowner wants a taller rain cap. Either way, the warranty stays intact because we don’t mix incompatible alloys.
- DuraFlex SL (smooth-wall) insert liners - reverse slope pooling. The SL’s low-friction interior is great for draft, but if the original installer pitched it wrong, condensation runs back toward the insert instead of out the cap. In Roanoke’s older Hollins and South Roanoke homes with shallow hearth depths, this is common. We re-pitch with adjustable elbows or, when the masonry allows, switch to a DuraFlex Pro smooth-wall with better drain fittings. The photos go in your report.
- DuraFlex direct-vent gas fireplace co-axial terminals - spider nesting in the intake. The screened intake on DuraFlex co-ax terminals sits low and horizontal, perfect for paper wasps and the spiders that eat them. We’ve pulled enough webbing from these in Roanoke’s wooded lots to know the factory screen mesh is too coarse. We clean the terminal, test combustion, and can install a finer aftermarket screen or a DuraFlex-compatible Famco guard that doesn’t restrict airflow. This is a 30-minute fix that prevents a no-heat call at midnight.
- DuraFlex factory-built chimney chase covers - galvanic corrosion at the storm collar. When a DuraFlex chase cover is paired with a dissimilar-metal storm collar or fastened with non-stainless hardware, the galvanic reaction eats the seal in five to seven years. Roanoke’s acid rain accelerates it. We replace with a Copperfield stainless chase cover and match the metals top to bottom, or use a Gelco cover if the chase geometry demands a custom bend. No more rust streaks down your siding.
Our DuraFlex Fireplace Services Process
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Call intake with a live person. We ask for the DuraFlex model or series if you know it, the fuel type, and what you’re seeing. We don’t book blind.
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Level-2 camera inspection on arrival. Our technician runs a camera the full length of the flue or liner, photographs every joint, termination, and firebox condition. You watch the screen. We explain what we see in plain English.
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Parts decision: OEM or quality aftermarket. If DuraFlex OEM is in stock or a two-day order, we quote it. If the failure is common and a HeatShield or Gelco equivalent meets the spec, we explain the trade-off and let you choose. We never install a part we can’t warranty.
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Repair with documentation. The technician completes the work, pressure-tests or smoke-tests as appropriate, and photographs the finished condition. Most DuraFlex repairs finish in one visit.
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Written report and 90-Day Done Right Promise. You get photos, a plain-English verdict, and our guarantee in writing: if it’s not right, we make it right. No paperwork to find, no arguing.
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Cleanup and final combustion or draft test. We leave the hearth cleaner than we found it and verify the system operates within manufacturer’s spec before we pack up.
What DuraFlex Fireplace Services Costs in Roanoke
| Service | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex gas fireplace tune-up & inspection | $89-$175 | Insert removal, remote diagnostics, vent run length |
| DuraFlex liner section replacement (gas Pro or SS) | $340-$780 | Roof pitch, number of bends, OEM vs. aftermarket |
| DuraFlex firebox or refractory panel repair | $280-$650 | Panel availability, crack severity, HeatShield vs. replacement |
| DuraFlex insert conversion (wood to gas or reverse) | $1,800-$3,400 | Gas line extension, liner sizing, permit requirements |
| DuraFlex termination or chase cover replacement | $220-$580 | Chase height, custom metalwork, access difficulty |
These are real ranges for the Roanoke market, not teaser prices. The only way to know your exact number is to see the system. Estimates are free, and we don’t charge to look. Call (540) 787-3302 for an exact quote.
Why Roanoke Homeowners Call Hearthstone Chimney Co. for DuraFlex Work
We’ve been on roofs in Roanoke since 1984. Russell Haines and our crew have worked on DuraFlex systems in this valley long enough to know which failures repeat and which ones surprise us. The 90-Day Done Right Promise means we put it in writing: if it’s not right, we come back. No forms to dig out of a drawer.
Our technicians are background-checked, uniformed, and carry OEM and quality aftermarket inventory for DuraFlex, HeatShield, and Gelco - so we’re not ordering parts after we tear your system apart. Most jobs finish in one visit. The price we quote is the price you pay. A clean chimney doesn’t announce itself. Neither does a problem - until it does. We’d rather find it on our schedule than on yours.
FAQs
No. As an independent DuraFlex service provider, we follow manufacturer installation and repair specs, use OEM or spec-compatible parts, and document our work. The warranty remains valid because we don’t cut corners on materials or clearances. If you have a specific warranty concern, we’ll review your documentation before we start. Call (540) 787-3302 and we’ll walk through it.
Most common DuraFlex termination collars, liner sections, and firebox components arrive in two business days from regional distributors. We stock HeatShield and Gelco equivalents for faster turnaround when the homeowner approves. If your system is down and weather is coming, we’ll tell you honestly whether to wait for OEM or proceed with a compatible part. Call for current availability.
Repair if the liner and firebox are structurally sound and the repair costs less than 40% of a comparable new installation. Replace if the liner has multiple failed sections, the firebox is cracked through, or you’re facing repeated service calls. We give you the camera evidence and a straight recommendation, not a sales pitch. Estimates are free - call (540) 787-3302.
Once a year, before burning season. DuraFlex gas systems don’t produce creosote like wood burners, but the burners, pilot assembly, and co-ax vent terminals collect dust and insect debris. In Roanoke’s pollen-heavy springs, we’ve found spider webs blocking intakes as early as June. Annual service keeps the warranty valid and catches the small problems before they become no-heat emergencies.
creosote accumulates in the corrugated valleys of DuraFlex SS and Pro liners, increasing chimney fire risk and accelerating corrosion. Skip three seasons and you may need a full liner replacement instead of a sweep. We document creosote buildup with photos so you can see exactly where you stand. Call (540) 787-3302 for a free inspection and honest assessment of whether you can wait.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Roanoke and nearby areas.