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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Before
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AfterWhy Hempstead Homeowners Choose DuraFlex Chimney Cleaning
We provide independent DuraFlex chimney cleaning and repair service throughout Hempstead and Nassau County, with no manufacturer authorization and no corporate script. Our crew works on DuraFlex 316L, AL 29-4C, Pro, and DTC liner systems every week, so we know exactly how these liners fail in local chimneys and what actually needs done. That means you get a straight answer from Wendell Pike, the owner, not a sales pitch from a franchise that rotated in last spring. Call (516) 963-1068 and you’ll talk to a live person who’s been inside more Hempstead flues than he can count.
Why Trust Top Hat Chimney for Your DuraFlex Chimney Cleaning?
DuraFlex liners live inside the flue, so most of the work happens where you can’t see. That’s why camera inspection is standard on every job we do. Wendell learned the trade at Southwestern College in Chula Vista, then spent the better part of two decades driving out to Hempstead, including plenty of calls near Hofstra University where older homes and older chimneys tend to go hand in hand. He knows these liner systems from roofline to appliance collar, and he’ll tell you straight when a job doesn’t need doing. We use genuine DuraFlex components whenever availability allows, and we never void a manufacturer warranty by stuffing in a mismatched part. The 90-Day Done Right Promise is in writing on every job, and the price you hear on the phone is the number on the invoice. One call brings the crew back if something isn’t right.
Common DuraFlex Chimney Cleaning Problems We Fix in Hempstead
- Creosote buildup on corrugated DuraFlex 316L liners. The corrugations in a 316L flexible liner catch creosote faster than smooth walls, especially after seasons of low-temperature wood burning. Hempstead homeowners who run their stoves at a lazy idle see second and third-degree creosote form inside those ridges within a single season. We brush it out, scope the liner with a camera, and tell you if the buildup is routine or a sign that your burn habits need adjusting.
- Pinholes and seam corrosion in DuraFlex AL 29-4C gas vent liners. High-efficiency gas appliances produce acidic condensate. When an AL liner sags even a few inches, that condensate pools in the low spot and eats through the aluminum from the inside. We pulled one from a Hempstead split-level that had pinholes along the lower five feet, all from condensate sitting in a sag. The homeowner smelled gas and called us. The fix was a new liner with proper slope support, not a patch.
- Liner sagging or kinking from missing top plate support. A DuraFlex liner needs a proper top plate and support clamp at the crown. Cheaper installations skip the support, and the liner’s own weight pulls it into a kink or an S-curve over time. That restricts draft, traps creosote, and accelerates corrosion. We see it a lot on Hempstead homes where the liner was installed during a quick fuel-conversion job.
- Soot accumulation around misaligned DuraFlex DTC connections. The Direct Connect kits are shorter liners that tie a stove into an existing flue collar. If the connection isn’t seated square, soot and creosote collect right at the joint. The homeowner sees smoke spill on startup and assumes the stove is bad. Most of the time it’s just a DTC connection that needs realigned and sealed properly.
- White crust near the bottom of AL liners. That white residue is dried condensate carrying dissolved aluminum oxide. It tells us the liner is being eaten from the inside, usually because a high-efficiency appliance is venting through a liner that’s too large or improperly sloped. If you see white crust at the base of your DuraFlex AL liner, call us. It won’t heal itself.
DuraFlex Parts & Our Repair-vs-Replace Approach
We stock or can quickly source genuine DuraFlex connectors, top plates, rain caps, and liner sections for the 316L, AL 29-4C, Pro, and DTC lines. When a quality aftermarket connector meets or exceeds the OEM spec, we’ll use it and tell you we’re doing it. When a DuraFlex liner shows structural corrosion, multiple pinholes, or kinked sections, we recommend replacement over patching. Patching a corroded liner is like putting a bandage on a tire with three nails. On the other hand, a dirty but structurally sound 316L liner just needs a proper sweep and a camera check. The camera footage and a plain-English verdict, every time, no exceptions. If it doesn’t need doing, we’ll tell you. Call (516) 963-1068 and we’ll walk you through what we’re seeing.
Our DuraFlex Service Process - Step by Step
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Diagnosis. We start with a video inspection of the full liner run, from rain cap to appliance connection. For DuraFlex 316L, we’re looking for creosote depth, ridge damage, and kinking. For AL liners, we’re checking for pinholes, seam separation, and condensate pooling. You see every frame of footage and get a plain-English explanation of what it means.
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Repair or install. If it’s a parts job, we use genuine DuraFlex components or aftermarket parts that meet spec. If it’s a full reline, we size the new liner to the appliance, not the old flue. That sizing matters more than people think, especially on Hempstead oil-to-gas conversions where the old flue is way oversized for the new appliance.
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Test. After any repair or install, we run the appliance and check draft with a manometer. We’re not guessing. We’re measuring. Then we do a final camera pass to confirm the liner is seated, sloped, and secure from top to bottom.
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Warranty. Every DuraFlex job gets the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Wendell and the crew back at no charge. No fine print, no phone tree, no runaround.
DuraFlex Products We Service & Install in Hempstead
We service and install the full DuraFlex lineup: the 316L Flexible Chimney Liner for wood-burning appliances, the AL 29-4C Gas Vent Liner for gas furnaces and water heaters, the Pro 316L Smooth Wall Liner for higher draft efficiency, and the DTC Direct Connect Liner Kit for stoves tied into an existing flue. Our trucks carry the common connectors, top plates, and caps for these systems, so most Hempstead jobs are done in one visit. The less common parts get ordered and installed within the week.
We Also Service These Brands
Top Hat Chimney works across the liner brands trusted in Nassau County. Alongside DuraFlex, we install and service HeatShield and Gelco systems regularly, plus Olympia Chimney, Famco, and Copperfield components. Being multi-brand means we recommend the liner that fits your appliance and flue, not the one we happen to have on the truck.
FAQs - DuraFlex Chimney Cleaning Service in Hempstead
No. We are an independent DuraFlex service provider serving Duraflex in Hempstead and Nassau County. We’re not affiliated with or authorized by the manufacturer. What we are is experienced. Our crew works on DuraFlex liners every week and has been doing so for years. We know how these systems fail locally and how to fix them right the first time.
We prefer genuine DuraFlex components for liner repairs and replacements whenever availability allows. When a quality aftermarket connector or top plate meets or exceeds the OEM spec, we’ll use it, but you’ll always know exactly what’s going in and why. We won’t put a mismatched part in your flue to save a few dollars and we won’t void your warranty doing it.
A standard DuraFlex 316L cleaning and Level 2 camera inspection takes about two hours from setup to final walkthrough. A full liner replacement on a typical Garden City Duraflex service area two-story runs a single day. Larger jobs, like a reline with multiple appliance connections or chimney rebuilding around the liner, can stretch to two days. We’ll give you a straight answer when we scope the job. Call (516) 963-1068 for a free estimate.
We service the 316L Flexible Chimney Liner, the AL 29-4C Gas Vent Liner, the Pro 316L Smooth Wall Liner, and the DTC Direct Connect Liner Kit. Each has its own failure patterns. The 316L builds creosote in its corrugations. The AL line corrodes from acidic condensate when it sags. The Pro’s smooth walls reduce buildup but still need annual sweeping. The DTC kits fail most often at the connection joint.
Only if it’s done wrong. Cleaning a liner with the proper brush size and a camera inspection afterward won’t void a DuraFlex warranty. What voids warranties is letting the liner corrode, kink, or build creosote until it’s structurally unsafe. Regular service is what keeps a warranty valid. The camera footage and a plain-English verdict, every time, no exceptions.
A Chimney Cleaning & Sweep with DuraFlex 316L camera inspection in Hempstead typically runs $180 to $340. Relining jobs start higher, depending on liner length, diameter, and access. We give you the full price before a single tool comes off the truck, and it’s the same number on the invoice. $40 off any repair over $200, and 10% off always for seniors and veterans. Call (516) 963-1068 for an exact quote. Estimates are free.
Book Your DuraFlex Service in Hempstead, NY
If you own a home in Duraflex in Franklin Square or Hempstead with a DuraFlex liner, don’t wait until the smell of smoke or gas tells you something’s wrong. Call (516) 963-1068 and talk to a live person, around the clock. Wendell Pike puts his name on the work, runs into you again on Saturday, and backs every job with the 90-Day Done Right Promise. Free estimates, no trip charge inside the county.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Hempstead and Nassau County since 1999.