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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AfterDuraFlex Chimney Cleaning & Sweep in Cherry Hill: What to Know First
As an independent DuraFlex service provider, Hearthstone Chimney Co. cleans and sweeps DuraFlex chimney liners, caps, and venting systems throughout Cherry Hill, typically scheduling within a few days and completing most jobs in a single visit. Our Level-2 camera inspections come with photos you can see and a plain-English verdict - no surprises on the bill, and no work recommended without evidence you can examine yourself. Most DuraFlex sweeps and inspections run between $189 and $349 depending on the system configuration and what we find.
This page is for Cherry Hill homeowners who have a DuraFlex liner or venting product and need it cleaned, inspected, or cleared of creosote and soot before burning season. If you live in an older colonial in Barclay Farm, a split-level near Kingston, or anywhere in between and your fireplace or appliance vents through DuraFlex, we have worked on your exact setup. Call (856) 543-2929 - a live person answers, 24 hours a day.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SW and DuraFlex 316Ti flexible liners develop creosote glazing in Cherry Hill’s freeze-thaw climate when homeowners burn unseasoned hardwood or run appliances at low output for long periods. The 316Ti titanium-stabilized alloy resists corrosion, but the corrugations trap glazed creosote that standard brushes skid over. We use a rotary polypropylene whip system sized to the liner’s exact diameter, followed by a Level-2 camera pass to verify the flue is clean wall-to-wall.
- DuraFlex Pro and DuraFlex UltraPro relining systems can pull away from the top plate or thimble in homes with settlement-prone soils common to Camden County’s clay-heavy ground. The gap draws room air, cools the flue, and accelerates creosote buildup at the joint. We reseat the termination, seal with high-temp silicone rated to 600°F, and document the repair with photos - not guesswork.
- DuraFlex oval-to-round adapters in oil-to-gas conversion jobs (common in 1970s Cherry Hill ranches) accumulate sulfur-laden soot that narrows the effective flue diameter. The adapter’s seam is a collection point. We pull the adapter when accessible, clean it separately, and gauge the remaining flue size against the appliance’s BTU rating - a step many sweeps skip.
- DuraFlex chimney caps and chase covers with the factory mesh spark arrestor clog with cottonwood seed and leaf debris from the mature canopy along Route 70 and the Cooper River watershed. Restricted airflow causes smoky backups and incomplete combustion. We remove the cap, clean the mesh with a wire brush and compressed air, and check that the DuraFlex termination height still meets code after any prior roofing work.
- DuraFlex smooth-wall rigid sections used in some newer Cherry Hill construction develop longitudinal soot streaks where factory joints were not fully sealed during original installation. The streaking indicates bypass airflow that reduces draft and deposits combustible material on hidden surfaces. We mark each joint with a paint pen during inspection, reseal with OEM DuraFlex high-temp sealant or quality aftermarket equivalent, and retest draft with a digital manometer.
Our DuraFlex Chimney Cleaning & Sweep Process
- 1
Call and schedule. A live person answers, 24/7. We ask the DuraFlex model or series if you know it, the appliance type, and when you last had service. We quote a no-hassle upfront price range before booking.
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Arrival and setup. Our background-checked, uniformed technician arrives in a marked van, lays drop cloths, and inspects the appliance and venting path. We identify whether your system uses DuraFlex SW, 316Ti, Pro, UltraPro, or rigid smooth-wall - each demands different tooling.
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Level-1 or Level-2 inspection. Every sweep includes at least a Level-1 visual inspection. We recommend Level-2 (camera inspection) for DuraFlex systems over ten years old, after any chimney fire, or before a real estate transaction. You see the photos; we give a plain-English verdict.
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Cleaning with brand-appropriate methods. Rotary whips for corrugated flexible liners, specialized brushes for smooth-wall, hand cleaning for adapters and terminations. We use professional-grade tools from Copperfield and Famco - no hardware-store substitutes that can damage thin alloy walls.
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Post-sweep testing and documentation. We run a final camera pass, check draft with a digital gauge, and provide a written condition report. If we find a failing component, we explain whether OEM DuraFlex parts or quality aftermarket from Olympia Chimney or Gelco are appropriate for your situation.
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Cleanup, guarantee, and next steps. We vacuum, remove drop cloths, and leave the work area as we found it. Every job carries our 90-Day Done Right Promise in writing - if it’s not right, we come back. No arguing, no paperwork chase.
What DuraFlex Chimney Cleaning & Sweep Costs in Cherry Hill
| Service | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex Level-1 sweep & inspection | $189 - $249 | Single appliance, straight run, accessible cap |
| DuraFlex Level-2 sweep with camera inspection | $279 - $349 | Multiple appliances, offset flue, older system needing documentation |
| Creosote glazing removal (heavy buildup) | Add $75 - $150 | Requires rotary chemical treatment or second pass |
| Cap/termination cleaning and reseal | $89 - $165 | Accessibility, height, whether adapter needs reseating |
| DuraFlex adapter removal and reinstallation | $140 - $220 | Location, condition of existing fasteners, need for new sealant |
Factors that increase cost: multi-story chimney runs, buried cleanout doors in finished basements common in Cherry Hill’s 1960s-1980s stock, and systems requiring two technicians for safe roof access. We tell you before we start. The number on the estimate is the number on the invoice. Call (856) 543-2929 for an exact quote - estimates are free.
Why Cherry Hill Homeowners Call Hearthstone Chimney Co. for DuraFlex Work
We’ve served Cherry Hill and nearby communities for over 42 years, and we plan to be here in thirty more. That changes how we treat every job. Our 90-Day Done Right Promise means if the sweep uncovers an issue we missed or the fix doesn’t hold, we return - in writing, no arguing. Russell Haines and our technicians know DuraFlex products from hands-on work, not a catalog, and when a DuraFlex part is back-ordered or discontinued, we source quality equivalents from HeatShield, Gelco, or Olympia Chimney rather than leave you waiting through burning season. Photos you can see, a plain-English verdict, and a square deal: no surprises on the bill. The chimney either draws the way it should, or it does not - and we will not leave until we know which.
FAQs
No. As an independent DuraFlex service provider, we follow manufacturer cleaning guidelines and use tools rated for thin-alloy stainless liners, which preserves warranty coverage. Using uncertified sweeps or hardware-store brushes can scratch or deform corrugations, and that is what voids protection. If you have warranty paperwork, we’ll note our service methods to support any future claim. Call (856) 543-2929 to schedule - estimates are free.
Replacement becomes necessary when the camera shows holes, separations, or wall thinning below manufacturer minimums - typically after a chimney fire or decades of corrosive venting. Cleaning is sufficient when buildup is the only issue and the alloy is sound. We show you the camera footage and explain which category you’re in. If replacement is needed, we quote DuraFlex, HeatShield, and Gelco options so you can compare. Call (856) 543-2929 for an inspection.
Not always. For termination hardware, adapters, and sealants, quality aftermarket parts from Olympia Chimney or Gelco meet the same temperature and corrosion specs at lower cost. We use OEM DuraFlex when the part is proprietary or warranty coverage depends on it, and we tell you which path we’re taking before we order. No hidden substitutions. Call (856) 543-2929 to discuss your specific repair.
The National Fire Protection Association recommends annual inspection; sweeping frequency depends on use. In Cherry Hill, where many homeowners burn weekends from November through March, we typically see creosote buildup requiring cleaning every one to two years. Oil and gas appliances venting through DuraFlex need less frequent sweeping but still annual inspection for soot and debris. We’ll tell you where your system falls after we inspect it. Call (856) 543-2929 to book.
Glazed creosote hardens into a fuel source. A chimney fire in a DuraFlex liner can overheat the alloy, causing it to separate from the top plate or develop pinholes. Carbon monoxide can leak through gaps. These are real risks, but we don’t scare-sell - we show you what we find and let the camera footage speak. If your system is clean and sound, we tell you so. Call (856) 543-2929 for an honest assessment.
Ready to have your DuraFlex chimney cleaned and inspected by a crew that knows the product and stands behind the work? Call Hearthstone Chimney Co. at (856) 543-2929. A live person will answer, 24 hours a day, and we’ll get you scheduled at a time that works. Estimates are free, and most jobs are completed in a single visit.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Cherry Hill and nearby areas.