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.
Before
After
Before
After
Before
AfterWhy Cherry Hill Homeowners Choose DuraFlex Chimney Cleaning
Cherry Hill Duraflex service typically runs $180-$340 for a standard sweep and inspection, with most jobs completed in a single visit by technicians who know these stainless liners inside and out. Hearthstone Chimney Co. is an independent DuraFlex service provider - not authorized, sponsored, or endorsed by the manufacturer - and we’ve installed and serviced DuraFlex stainless liners and chimney components across Cherry Hill for years. We know which system fits each flue and how they fail. Call (856) 543-2929 to book.
Cherry Hill was built almost entirely during a single concentrated suburban boom in the 1960s and 1970s, triggered by the 1961 opening of Cherry Hill Mall and rapid Philadelphia-area flight to Camden County suburbs. That means the township has an unusually dense concentration of similarly-aged masonry chimneys, most now 50-60 years old and hitting the same critical deterioration window simultaneously. A large share of those homes later converted from oil-fired furnaces to natural gas without relining the chimney, leaving original terra cotta flue tiles sized for high-temperature oil exhaust now venting cooler gas appliances. The result: condensation, acidic byproduct buildup, and accelerated liner failure. DuraFlex stainless liners were the right fix for many of these chimneys, but only if they were installed correctly and only if they’re maintained by someone who understands the product.
Why Trust Hearthstone Chimney Co. for Your DuraFlex Chimney Cleaning?
We know DuraFlex products because we’ve worked on them for years in Cherry Hill homes - from the split-levels near Springdale Road to the colonials over in Barclay Farm where the fireplaces run nearly as old as the subdivision itself. Russell Haines, our owner, picked up his trade fundamentals at Los Angeles Trade-Technical College before spending the better part of two decades working chimneys up and down the East Coast. He and our crew have served Cherry Hill long enough to recognize the patterns: which DuraFlex installs were done right, which were rushed, and which are showing the early signs of trouble that a less experienced sweep might miss.
We use genuine DuraFlex stainless liner components and manufacturer-matched caps and top plates whenever they’re available, plus high-quality UL-listed aftermarket parts for standard fittings. Our Level-2 camera inspections end with photos you can see and a plain-English verdict - documented like an engineer, explained like a craftsman. If the flue is fine, we tell you it’s fine. If it’s not, we tell you exactly why and what it will take to fix it. The chimney either draws the way it should, or it does not - and we will not leave until we know which.
Every job is backed by our 90-Day Done Right Promise in writing, no arguing. Background-checked, uniformed technicians. Most jobs completed in a single visit. No-hassle upfront pricing - the number on the estimate is the number on the invoice.
Common DuraFlex Chimney Cleaning Problems We Fix in Cherry Hill
- Liner corrosion at terminations. DuraFlex stainless liners corrode fastest at the top and bottom terminations, where years of moisture and acidic flue gases attack the metal. In Cherry Hill, we see this constantly on exterior chimneys where the original DuraFlex cap or top plate was never sealed correctly during install. The corrosion starts invisible from the ground, but a camera inspection catches it before the liner fails completely.
- Kinked or compressed flexible liner. DuraFlex Pro and DuraFlex Plus flexible relining systems need careful handling during installation. We’ve found crushed sections in Cherry Hill homes where the liner was forced down a tight flue too fast, creating creosote traps and restricting draft in wood-burning fireplaces. In a 1970s split-level off Springdale Road, our tech swept a wood-burning fireplace connected to an 8″ DuraFlex stainless liner and found heavy glazed creosote plus a crushed section where the liner had kinked during the original install. We removed the creosote with rotary poly brushes, replaced the failed DuraFlex top plate and cap with a new stainless cap, and re-sealed the flashing; the draw improved immediately and the homeowner could burn safely through the winter.
- Failed or missing insulation wrap. DuraFlex Insulated Flexible Liner systems depend on proper insulation to maintain flue temperature. In Cherry Hill’s older neighborhoods like Erlton, we regularly find uninsulated exterior runs where the wrap was omitted or has degraded. Cold flue walls mean rapid creosote buildup and poor draft on cold starts - the fireplace smokes into the room until the flue finally warms up.
- Loose or corroded cap and flashing assemblies. DuraFlex chimney caps, top plates, and flashing components are the first line of defense against water. When they loosen or corrode, wind-driven rain from Delaware Valley nor’easters enters the flue and masonry, causing rust staining and spalling. Cherry Hill’s freeze-thaw cycles make this worse every winter.
- Cross-contamination in dual-flue chases. Cherry Hill’s tract developments are full of single-wythe brick chimneys with clay tile liners designed to serve both a living room fireplace and a basement mechanical-room flue in the same chase. When one flue gets relined with DuraFlex and the other doesn’t, or when both were relined by different contractors at different times, we check carefully that flues aren’t cross-contaminated and that both are drawing correctly after decades of uneven use.
DuraFlex Parts & Our Repair-vs-Replace Approach
We stock DuraFlex-compatible parts locally for fast turnaround on Cherry Hill jobs: stainless caps, top plates, flashing kits, and connector components for both 6″ and 8″ liner systems. Our rule is simple. If a DuraFlex liner is sound, we clean it, re-seal it, and repair it. If it’s corroded, kinked, or uninsulated in an exterior chase, we recommend relining rather than chasing repeated repairs. A repair that buys you two seasons before the next failure is no bargain.
We use genuine DuraFlex stainless liner components and manufacturer-matched caps and top plates whenever they’re available. For standard fittings like clamps and flashing, we use high-quality UL-listed aftermarket parts that meet the same specifications. Nothing is recommended without camera evidence you can see for yourself. Call (856) 543-2929 for an exact quote - estimates are free.
Our DuraFlex Service Process - Step by Step
- 1
Diagnosis with camera inspection. We run a Level-2 camera through the full length of your DuraFlex liner, documenting corrosion, kinks, creosote buildup, and termination condition. You get photos and a plain-English verdict.
- 2
Repair or install with DuraFlex-compatible components. We clean with rotary poly brushes sized for your liner diameter, replace failed caps and top plates with genuine or matched parts, and re-seal all terminations.
- 3
Draft and flow testing. We verify the chimney draws correctly under operating conditions - not just theoretically, but with the fireplace running or the appliance cycling.
- 4
Warranty documentation. Your 90-Day Done Right Promise goes in writing before we leave. If it’s not right, we make it right. No paperwork to dig up, no arguing.
DuraFlex Products We Service & Install in Cherry Hill
We work on the full DuraFlex line: DuraFlex Stainless Steel Chimney Liner Kits in 6″ and 8″ diameters, DuraFlex Insulated Flexible Liner systems, DuraFlex Pro and DuraFlex Plus flexible relining systems, and DuraFlex chimney caps, top plates, and flashing components. We stock the most common replacement parts for Cherry Hill’s 1960s-1970s housing stock, where these systems were installed during the gas-conversion wave of the 1980s and 1990s. If we need to order a specialty component, we tell you upfront how long it takes.
We Also Service These Brands
DuraFlex is not the only system we know. We service and install HeatShield cerfractory flue repair systems and Gelco chimney products with the same hands-on experience. Our crew doesn’t depend on one brand name - we match the right product to the right chimney, whether that’s a DuraFlex reline, a HeatShield resurfacing, or a Gelco cap and damper assembly. Done right, and we stand behind it.
FAQs - DuraFlex Chimney Cleaning Service in Cherry Hill
Is Hearthstone Chimney Co. authorized by DuraFlex?
No. We are an independent chimney company - not authorized, sponsored, or endorsed by DuraFlex. We service DuraFlex products based on years of hands-on experience with their components and failure modes, not on any manufacturer relationship.
Can you clean a DuraFlex stainless liner without damaging it?
Yes. We use rotary poly brushes sized to your liner diameter, not stiff wire brushes that can score stainless steel. The key is matching the brush to the flue size and creosote type - glazed creosote needs a different approach than flaky stage-one buildup. We’ve cleaned DuraFlex liners in Cherry Hill homes for years without incident - and our Chimney Cleaning & Sweep process protects your liner every time.
What causes creosote to build up so fast in a DuraFlex-lined fireplace?
Usually one of three things: uninsulated liner in an exterior chimney (cold flue walls), poor draft from a kinked or crushed section, or burning unseasoned wood. In Cherry Hill, the uninsulated exterior run is the culprit we find most often on 1970s-era installs. A camera inspection tells us which one you’ve got.
How do I know if my DuraFlex liner needs replacement or just cleaning?
Corrosion holes, kinks that can’t be straightened, or missing insulation on an exterior chase mean replacement. Surface creosote on a structurally sound liner means cleaning. We show you the camera footage and explain which category you’re in. Nothing is recommended without evidence you can see. Call (856) 543-2929 to schedule - estimates are free.
Do you replace DuraFlex caps and top plates, or just the whole liner?
We replace caps, top plates, and flashing components all the time without touching the liner itself. If the liner is sound and the termination failed, that’s a repair, not a relining job. We’ll tell you honestly which you’ve got.
Can you service a DuraFlex liner that was installed by another company?
Yes. We service DuraFlex liners regardless of who installed them. In fact, some of our most important fixes in Cherry Hill have been on liners installed by contractors who are no longer in business or who didn’t seal the terminations correctly in the first place.
How much does DuraFlex chimney cleaning cost in Cherry Hill?
Standard DuraFlex chimney cleaning and inspection in Cherry Hill typically runs $180-$340, depending on creosote severity, accessibility, and whether cap or top plate work is needed. More complex repairs or relining work are quoted upfront after inspection. We offer $50 off any repair over $250, a permanent 5% senior and veteran discount, and a free second opinion on any written estimate. Call (856) 543-2929 for an exact quote - estimates are free.
Book Your DuraFlex Service in Cherry Hill, NJ
Call (856) 543-2929 any time - a live person answers 24 hours a day, 7 days a week. We’ll schedule your DuraFlex inspection, show you what we find, and give you a plain-English verdict with upfront pricing. A square deal: no surprises on the bill. We’ll be there when we say.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Cherry Hill since 1984.