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 Chimney Cleaning in Northampton, PA | Top Hat Chimney
We provide independent Northampton Chimney Cleaning & Sweep with DuraFlex liner inspection across Northampton Borough, and the one thing that separates our DuraFlex work here from anywhere else is what’s behind the liner. Most Northampton row homes still carry the original coal-era clay tile underneath a DuraFlex liner installed during the 1980s conversion wave. That tile was never glazed or sized for gas, so creosote and soot pile up in the gap between tile and liner where a standard brush never reaches. If you own a DuraFlex-lined chimney in Northampton, call (484) 859-1367 and we’ll put a camera up there to show you exactly what’s going on.
Why Northampton Residents Choose Us for DuraFlex Service
Wendell Pike started Top Hat Chimney in 1999 and has been inside more Northampton chimneys than he can count, plenty of them over near Lincoln Avenue where the old rowhouses still stand shoulder to shoulder. We work on DuraFlex liners every week in Northampton, and that matters because DuraFlex installed inside a 1910 coal chimney behaves differently than the same product in a newer suburban chase. Wendell knows the liner-to-appliance sizing and connection points that pass local inspections, and he knows when a liner section can be repaired versus when it’s done. Our DuraFlex sales & service work is independent of any manufacturer program, which means we call it straight: repair what’s sound, replace what isn’t.
Every job gets a written 90-Day Done Right Promise. Every call gets a live person, any hour. The quote you hear on the phone is what you pay when the truck leaves. No franchise rotating in from out of state, no price change at the door.
Common DuraFlex Chimney Cleaning Problems We Solve in Northampton
- Pinhole corrosion along 304L liner seams. Northampton basements run damp, especially in the row homes built tight against the neighbor’s wall. Higher-efficiency gas furnaces vent cooler exhaust, and that condensation eats at the seam welds on older DuraFlex 304L liners. We find pinholes with a camera before they become a carbon monoxide problem.
- Disconnected Pro Connect joints from the 1980s. When the Atlas Cement plant scaled down and Northampton converted from coal to gas en masse, a lot of liners went in fast. Pro Connect adapters that never got secured to the appliance collar pull away over time. We see this constantly on the borough blocks, and it means furnace exhaust venting into the brick chase instead of up and out.
- Kinked or collapsed flexible sections under old slate crowns. Snow loads on those century-old slate crowns shift with every freeze-thaw cycle the Lehigh Gap sends through. Over years, that repeated weight cycling kinks semi-rigid aluminum sections. The liner looks fine from the top down until you get a camera inside.
- Rain cap and top plate rust-through. Exposed fasteners on older DuraFlex caps lose their coating fast in Lehigh Valley acid rain. Once the fastener goes, water follows it down into the chase and hits whatever’s below, often the top of the liner itself.
- Creosote accumulation behind the liner. This is the Northampton signature. The annular gap between the original coal tile and the DuraFlex liner traps soot and creosote where you can’t see it and a standard sweep won’t get it. It needs a camera inspection to even find, and a proper cleaning once you do.
DuraFlex Service in Northampton: What Local Conditions Mean for Your Equipment
Here’s the thing about Northampton Borough that changes DuraFlex work, and it’s not true a mile outside town. The borough grew as Atlas Cement company housing, rows of brick workers’ homes put up fast between the 1890s and 1920s. Those chimneys were built for coal, with unglazed clay tile flues. When Atlas scaled down in the 1980s, the conversions happened in a rush. Many homes got a DuraFlex liner slid into the existing coal tile, but nobody removed the original tile or resized it for gas. That leaves an annular gap between the old tile and the liner where soot and creosote collect behind the liner itself. We see this on Chestnut and Main Street blocks more than anywhere else in the Lehigh Valley. If your Northampton home got its liner in the 1980s and no one has ever put a camera behind it, there is almost certainly something back there worth seeing.
Freeze-thaw does the rest of the damage. Cold air funnels through the Lehigh Gap and works on the mortar joints, the crowns, and the chase brick. The DuraFlex liner itself holds up reasonably well, but everything around it moves, and a liner that was sized tight to a shifting chimney gets stressed. Annual inspection before heating season is not a suggestion here. It’s the only way to catch a pulled joint before the furnace runs.
DuraFlex Models & Products We Service in Northampton
We service the full line of DuraFlex products installed across Northampton: the DuraFlex AL 316Ti stainless chimney liner, the 304L flexible liner, Pro Connect appliance adapters, and the DuraFlex rain cap and top plate kit. Those are the four we pull out of Northampton chimneys most often. We install genuine DuraFlex-branded liner sections when replacement is called for. For connection hardware, top plates, and caps, we use equivalent-grade stainless aftermarket pieces when they match the gauge and alloy. That keeps Northampton turnaround fast without cutting corners on metallurgy.
We handle Chimney Repair in Northampton like liner joints and short section replacements when the rest of the liner still has sound wall thickness. We will not sell you a full re-line because one joint pulled loose. That’s the difference between a sweep who works the same streets you do and a national outfit that quoted on the phone.
DuraFlex Service Pricing in Northampton
In Northampton, a DuraFlex chimney cleaning and Level 2 camera inspection usually runs $229 to $349 for a single-flue home, and $279 to $429 for a two-flue, depending on liner condition and how much creosote sits behind the old tile. If we find liner damage during the inspection, the quote covers exactly what needs fixing, no package deals. Our free estimate includes the camera footage and a plain-English verdict on what’s urgent and what can wait. Call (484) 859-1367 and we’ll give you a firm number before a single tool comes off the truck.
$40 off any repair over $200. Free second opinion on any written estimate. No trip charge inside our service county. 10% off for seniors and veterans.
Serving Northampton, PA - Our Local Coverage Area
We’re based in the Northampton area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - DuraFlex Chimney Cleaning in Northampton
Yes, and arguably more than a modern chimney. The gap between the original coal tile and the liner traps soot and creosote out of reach of a standard sweep, so annual work means a camera inspection and a cleaning that addresses what’s behind the liner, not just what’s inside it. Once a year, burn or no burn. Call (484) 859-1367 to get on the schedule before burning season.
Depends on where the hole is and what the wall thickness looks like around it. A pinhole along a seam in an otherwise sound 304L section can often be patched or have a short section replaced. If the corrosion runs long or the liner has thinned across a wide area, we’ll tell you it’s time. We repair before we replace, and we’ll show you the camera footage so you can see why. If it does not need doing, Wendell will tell you. If it does, he will get it done right.
Not necessarily. A liner installed during the 1980s coal-to-gas conversion wave was often sized for the old appliance and never resecured when a newer furnace went in. Local inspectors in Northampton look for proper liner-to-appliance connections and correct sizing. We see plenty of 1980s liners that passed no inspection at the time because none was required. If you’re not sure whether yours meets current code, call (484) 859-1367 for a Level 2 inspection and we’ll tell you plainly.
You may smell furnace exhaust in the basement, see rust staining around the appliance collar, or hear a rattle when the furnace kicks on. Some pulled joints show nothing at all until the carbon monoxide detector goes off. If your Northampton home has a liner from the 1980s and you’ve never had the connection checked, that’s the first thing we look at. Call (484) 859-1367 and we’ll bring the camera.
Mostly the chimney. The DuraFlex liner flexes, but the mortar joints, brick, and crown around it do not, and freeze-thaw movement stresses the liner where it passes through shifting masonry. Over time, that stress can kink flexible sections or work a joint loose. The liner isn’t the weak point, but it takes the strain from a chimney that is. Annual inspection in Northampton catches that strain before it becomes a failure.
Service Areas Near Northampton
Top Hat Chimney serves Northampton Borough and the surrounding Lehigh Valley communities. If you’re in Allen, Catasauqua, Palmerton, East Allen, or Slatington, we’re close by. See our Northampton service area page for full coverage details, or check DuraFlex service in Allen and DuraFlex service in Catasauqua for specifics.
Book Your DuraFlex Service in Northampton Today
A live person answers around the clock, and it may well be Wendell himself. Call (484) 859-1367 for a free estimate, a firm upfront price, and a date on the calendar. Northampton chimneys don’t wait well, and neither should you.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Northampton since 1999.





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