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 Liner & Rebuild in Leesburg: What to Know First
We’re an independent DuraFlex service provider in Leesburg, and yes, we repair, reline, and rebuild chimneys running DuraFlex products. A typical DuraFlex liner replacement in Leesburg takes one to two days on-site and runs $1,800 to $3,400 depending on flue height, access, and whether we’re also rebuilding the crown or smoke chamber. We write the price down before work starts, and we show you the camera footage that justifies every dollar. This page is for homeowners in Leesburg whose DuraFlex liner is failing, was flagged during a home inspection, or is original to a house built in the last 20 years and now showing its age. Call (571) 601-3174 and we’ll schedule the Level 2 camera scan first.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex 316L flexible liner seam separation at the first elbow. The single-wall corrugated profile on DuraFlex 316L handles offset flues well, but we regularly see seam separation where the liner passes through the smoke chamber and takes its first bend. The corrugation folds catch creosote, the metal fatigues at the fold line, and exhaust finds a gap. Our fix: we pull the liner, inspect the full length on the roof, and replace the compromised section or the full run depending on what the camera shows.
- DuraFlex Smooth Wall liner cracking at the tee connection. In Leesburg homes that burn wood seasonally, the Smooth Wall line’s lock-seam can develop hairline cracks right at the tee snout where the appliance connects. It’s not a manufacturing defect; it’s thermal cycling plus hardware that was overtightened at install. We replace the tee and reseat the connection with the correct torque, not just a new clamp.
- DuraFlex Pro liner pitting from condensate drip in unused flues. Gas and oil flues that vent through a DuraFlex Pro liner without a properly sized cap trap rainwater and condensate. In Leesburg, we see pitting concentrated on the inner corrugation valleys within three to five years when the cap is missing or mis-sized. We replace the liner, verify the cap sizing, and photograph the old liner sections so you can see exactly what happened.
- Improper DuraFlex-to-clay-tile mortar transition. When a contractor slaps a DuraFlex liner down an existing clay-tile flue without removing the old tiles or properly sealing the top plate, the liner expands and contracts against broken tile edges. That friction cuts the liner wall over time. We see this on older Leesburg homes near the Balls Bluff Battlefield area where original clay liners are still in place. Our fix includes removing obstructing tile, insulating the annulus, and resetting the top plate to DuraFlex’s install tolerances.
- Aftermarket rivets and clamps that DuraFlex never specified. Cheap pop rivets and generic band clamps corrode faster than the liner itself, especially with the humidity swings we get in Leesburg. When we open a flue and see mismatched hardware, we replace it with stainless fasteners rated for the liner’s alloy. The liner might still be good; the hardware isn’t.
Our DuraFlex Chimney Liner & Rebuild Process
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Call and schedule the Level 2 inspection. We answer live at (571) 601-3174, 24/7. You get a named tech and a text when we’re on the way.
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Camera scan, from the firebox to the cap. Every DuraFlex job starts with the camera, per Haven Standard Clause 4. We look at the liner walls, the seams, the tee, the top plate, and the flue cap. Corrine Halstead will show you the footage herself, frame by frame if you want, and tell you what’s failing and what can wait.
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Written scope and written price before anything gets touched. Clause 1 of the Haven Standard means you get the number on paper before we order a single part. No verbal ranges, no surprises at the end.
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Parts decision: OEM DuraFlex or quality aftermarket where it’s actually better. We stock DuraFlex OEM components for warranty continuity. Where an aftermarket stainless cap or top plate outperforms the OEM option for less money, we tell you and let you choose. We don’t bury parts upgrade decisions in a line item.
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The repair or rebuild, done in one or two days. We remove the old liner or rebuild the damaged masonry, install the new DuraFlex run, seal the top plate, and set the cap. We photograph the finished work from the roof and the firebox.
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Draft test and documentation. We run a smoke test to confirm draft, then hand you the photo record: before and after images, the liner certificate if applicable, and the written warranty. The 365-Day Done Right Promise applies from that moment.
BeforeAfterWhat DuraFlex Chimney Liner & Rebuild Costs in Leesburg
Here are the numbers we actually write on proposals in Leesburg, not ballpark figures from somewhere else.
- DuraFlex 316L flexible liner replacement, single story: $1,800-$2,600
- DuraFlex Smooth Wall liner replacement, two story: $2,400-$3,400
- DuraFlex Pro liner for gas/oil flue, including cap: $1,600-$2,400
- Liner repair only (tee replacement, seam patch, hardware reset): $350-$900
- Partial rebuild (crown, top courses, smoke chamber parge + liner): $3,000-$5,500
- Full chimney rebuild from the roofline up: $8,000-$18,000 depending on height, brick matching, and access
What moves the price: flue height, roof pitch and access, whether the old clay tiles need to come out, and whether the crown or smoke chamber is also failing. We’ll tell you in writing which of these apply to your chimney. Estimates are free, and a Free Second Opinion on any competitor’s written estimate is always available. Call (571) 601-3174.
Why Leesburg Homeowners Call Level Two Chimney Leesburg for DuraFlex Work
Because we show you the camera footage before we ask you to write a check. Every DuraFlex job we do in Leesburg starts with a documented photo record, ends with a documented photo record, and includes the 365-Day Done Right Promise if something isn’t right. We’ve done this since 2009, and 38,000-plus chimneys later, the process hasn’t changed: camera down the flue, price written down, work done right, proof in your hands. Our techs are background-checked, uniformed, and trained specifically on DuraFlex, HeatShield, and Gelco systems, so if a liner isn’t the right fix, we’ll tell you what is. Corrine Halstead runs the Leesburg crew, and she’s the one who will walk you through what the camera found. The camera doesn’t lie, and neither does the price she writes down before she starts.
FAQs
Repairs done by an independent contractor using non-OEM parts can void remaining DuraFlex warranty coverage on the affected component. That’s why we stock DuraFlex OEM parts for repairs where warranty continuity matters, and we only use stainless fasteners and clamps rated for the liner’s alloy. If your liner is still under warranty, we’ll flag that before we touch anything and give you the choice: OEM repair through us, or a warranty claim path we can document with camera footage and measurements.
One to two days for a straightforward liner swap on a single-story or two-story home. If we’re also rebuilding the crown or parging the smoke chamber, add a day. Weather can stretch roof work, but we set the schedule in writing before we start and we text you when the tech is on the way.
It depends on what the camera shows. Seam separation, cracked tee connections, and pitted sections can sometimes be repaired for under $900. If the liner has multiple compromised points, thinning walls over more than a third of its length, or damage from tile friction, replacement is the honest call. We’ll show you the footage and let you decide, and the written price will reflect exactly what we’re doing. Call (571) 601-3174 for a free estimate.
Yes, that’s most of our DuraFlex work in Leesburg. We inspect the existing liner, determine whether the original install was done to spec, and tell you what’s still good versus what needs to come out. A lot of DuraFlex failures here trace back to install shortcuts, not the product itself.
No. We source from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield through Haven’s buying network. If a HeatShield resurfacing or Gelco repair is the better fix for your flue, we’ll say so and price it accordingly. Most of the time in Leesburg, when the liner’s already DuraFlex, the cleanest repair is another DuraFlex run done correctly.
Written by Corrine Halstead, Owner, Level Two Chimney Leesburg at Level Two Chimney Leesburg, serving Leesburg and nearby areas.