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 & Sweep in Clifton: What to Know First
DuraFlex chimney cleaning and sweep in Clifton typically runs $189 to $329 for a standard annual sweeping with a Level 2 camera inspection included, and most jobs are completed the same week. If the camera finds a liner problem, you’ll get a written repair price before any brush touches the flue, never after. That’s how we’ve worked since 2009, and it’s the only way we know how to run a chimney company.
This page is written for homeowners in Clifton who have a DuraFlex liner, a DuraFlex chimney cap, or a DuraFlex-connected appliance and want the straight answers on cleaning, inspection, and what actually goes wrong with these systems. We’re an independent DuraFlex service provider, not a manufacturer affiliate. Call (551) 282-9640 and you’ll talk to a live person who can schedule a sweep or answer a question about your liner.
How DuraFlex Products Fail - and How We Fix Them
DuraFlex makes good products. But every liner system has weak points, and in Clifton’s climate (wet winters, freeze-thaw cycles, gas-fired appliances running all season), those weak points show up faster than the brochure suggests. Here’s what we actually see when the camera goes down a DuraFlex flue.
- DuraFlex 316L stainless liners and corrosive condensate. Gas appliances produce acidic condensation. If the liner wasn’t sized right or the appliance short-cycles, that condensation sits on the 316L alloy and eventually eats pinholes through it. On camera, it looks like tiny dark freckles along the lower third of the liner. Our fix: document the pinholes with photos, check the appliance venting setup, and quote a liner replacement only if the corrosion is structural. If it’s surface-level, we tell you that plainly and note it for next year’s inspection.
- DuraFlex AL29-4C liners and warped inner walls. This alloy handles high-efficiency gas condensate well, but it’s thinner than 316L. We occasionally see warping in Clifton homes where the water heater and furnace share a flue and the combined exhaust heat exceeds what the liner was rated for. The symptom is a rippled, wavy appearance on the camera feed halfway up. Our fix: confirm the appliance setup, verify the liner diameter, and if the warp is minor, we document it and recommend monitoring. If it’s compromised, we write a replacement quote with a proper sizing calculation, not a guess.
- DuraFlex chimney caps and rust at the mounting collar. DuraFlex caps are stainless, but the hardware and the collar where the cap seats against the flue tile are vulnerable. In Clifton, we get enough driving rain and snow that water pools at the collar, and once the sealant breaks down, rust follows. On camera, you’ll see orange staining running down from the cap area. Our fix: remove the cap, inspect the flue tile underneath, replace the mounting hardware with stainless fasteners, and reseal with a high-temp silicone rated for exterior chimney use.
- DuraFlex rain caps and animal entry. DuraFlex makes a standard mesh rain cap, but the mesh spacing doesn’t stop small birds, and raccoons can pry a loose cap off entirely. We’ve pulled nests out of DuraFlex-lined flues in Clifton more than once, and a nest sitting on top of your liner is both a drafting problem and a fire hazard. Our fix: remove the nest (with photos for you), sweep the liner clean, and if the cap is damaged, quote a replacement cap with a finer mesh that still meets code for airflow.
- DuraFlex liner insulation and creosote bonding. Uninsulated DuraFlex liners in exterior chimneys run cold. Cold liners mean creosote condenses faster and bonds harder. In Clifton, where a lot of homes have exterior-mount chimneys on the side wall, this is the single most common reason we see Class III creosote buildup in DuraFlex systems year after year. Our fix: mechanical creosote removal with the proper brush diameter for the liner, followed by a camera pass to confirm the flue is clean, and a written recommendation on whether insulation wrap makes sense for your setup.
Our DuraFlex Chimney Cleaning & Sweep Process

Every DuraFlex job we run in Clifton follows the same sequence. It’s not complicated, but each step matters. Clause 4 of the Haven Standard requires a photo record on every job, and that’s been our default since before it was a named standard.
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You call (551) 282-9640. A live person answers, takes your address in Clifton, and asks what you’re seeing or smelling. No phone tree, no voicemail.
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We arrive and lay down floor protection. Background-checked, uniformed techs. You know who’s in your home. We text when we’re on the way, and the tech’s license number is on the work order before they walk in.
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Level 2 camera inspection first. The camera goes down the flue before any brush touches it. This tells us the exact internal condition of your DuraFlex liner, the creosote class, and whether there’s any damage we need to flag. You see the photos. They’re yours.
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Written price and scope before work starts. If it’s a straightforward sweep, the price was standard and known before we even arrived. If the camera found something, we write it up: what it is, what it costs, what happens if you wait. You sign off or you don’t. That’s Clause 1 of the Haven Standard, and we don’t deviate.
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The sweep, done right. If you approved the work, we run the correct brush for your liner diameter, remove the creosote and soot, and vacuum everything out. If the camera found a repair need, we’d have already quoted it and you’d have approved it, so that gets handled in the same visit if parts are on the truck.
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Post-sweep camera pass and photo record. We run the camera again to confirm the flue is clean. You get a documented photo record showing before and after. That’s your file. It’s also our file, so next year’s inspection has a baseline to compare against.
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AfterWhat DuraFlex Chimney Cleaning & Sweep Costs in Clifton
We post prices because the alternative is what this industry has done for decades: get the tech in the door, then “find” problems. That’s not how we work. Here’s what DuraFlex systems typically cost in Clifton.
- Standard chimney sweep with Level 2 camera inspection: $189-$279. Includes the full sweep, camera documentation, and your photo record. One story, easy roof access, straightforward flue.
- Standard sweep plus creosote removal (Class II or III): $249-$329. The heavier the creosote, the more mechanical removal is needed. We won’t know the class until the camera goes down, but a photo in the work order keeps it honest.
- DuraFlex chimney cap replacement (part and labor): $245-$495. Depends on cap size, roof pitch, and whether the mounting collar needs replacing too. The cap is the most common replacement on DuraFlex systems because Clifton weather beats on it year-round.
- DuraFlex liner inspection with no sweep needed: $149-$199. If you just moved in or just had a sweep and want the camera verification, this is the stand-alone inspection.
What moves the price: the roof pitch in your part of Clifton, the height of the flue, how bad the creosote is, and whether a cap needs replacing at the same visit. What doesn’t move the price: anything we invent after you’ve already said yes. The written price before work starts is the price you pay. Call (551) 282-9640 for an exact quote. We’ll put it in writing before we schedule anything.
Why Clifton Homeowners Call Level Two Chimney Clifton for DuraFlex Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009, and every one of them came with a written price before work started and a documented record when it was done. That’s not a marketing line. That’s the file cabinet. Corrine Halstead has been running camera inspections in Clifton long enough to know what a DuraFlex liner looks like when it’s failing and when it’s just dirty. The camera doesn’t guess. Neither do we.
Every job is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right. That’s stamped on every work order. We also handle HeatShield and Gelco systems, so if your DuraFlex liner is beyond repair and you need a different brand’s product, we’ll photograph why and write the quote either way. We don’t upsell you into a liner replacement you can’t see. We show you the photos. We tell you, plainly, if it can wait a year or if it can’t. And we put that in writing.
Free second opinion: bring us a competitor’s written quote for any DuraFlex chimney work in Clifton, and we’ll tell you honestly whether it’s fair, high, or missing something. That’s free, and it comes from someone who actually runs the camera, not a sales rep.
FAQs
No. DuraFlex warranties cover manufacturing defects in the liner material, not normal maintenance. A proper chimney sweep with the correct brush for your liner diameter is standard care that keeps the warranty claim alive if a material defect ever does appear. We sweep DuraFlex liners in Clifton every week and photograph everything, so your maintenance record is documented if you ever need to file a claim.
Once a year if you burn wood, even occasionally. If the home has a gas appliance venting through the DuraFlex liner, the sweep interval can go to every two years, but an annual camera inspection is still smart because gas condensate corrosion shows up gradually and is easy to miss without a look inside. Call (551) 282-9640 and we’ll give you a written recommendation based on your actual setup, not a generic card.
Yes. The Level 2 camera inspection shows us the entire interior of the liner, and the photos are yours. If we see corrosion pinholes, warping, or a seam that’s separating, you’ll see it on the screen too. We don’t recommend a replacement without camera evidence you can look at yourself. If we tell you it needs replacing, you’ll have the photos to prove it. If it doesn’t, we’ll say so in writing.
Most sweeps in Clifton are scheduled within 3 to 7 days, depending on the season. Fall and early winter book up fast, so if you’re reading this in October or November, don’t wait to call. Burning season in Clifton arrives with the first cold snap, and that’s when we’re busiest. Call (551) 282-9640 and a live person will get you on the schedule with a written confirmation.
Written by Corrine Halstead, Owner, Level Two Chimney Clifton at Level Two Chimney Clifton, serving Clifton and nearby areas.





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