Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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 Mehlville, MO
We provide independent DuraFlex service across Mehlville, and the one thing that sets our DuraFlex work here apart is the housing stock itself. Most Mehlville chimneys started life as bare clay-tile flues in brick ranches built between roughly 1950 and 1975, so when a DuraFlex flexible stainless liner is already in place, we’re usually looking at a later retrofit sitting inside original tile that has had no real attention since. That changes how we inspect, clean, and re-secure a liner. Call (866) 596-7310 to book a sweep. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.

Why Mehlville Residents Choose Us for DuraFlex Service
We’re an independent chimney service, not a DuraFlex dealer and not affiliated with the manufacturer in any way. What we bring is hands-on familiarity with this brand’s flexible stainless systems and a clear read on how they age in Mehlville’s older flues. Our technicians have up to 12 years of experience, and the work is inspection-first: a methodical, top-to-bottom look at the full flue before any brush goes in. That habit catches liner cracks, packed creosote, and blockages before they turn into a chimney fire or a carbon monoxide problem. We install DuraFlex liner systems for full relining too, so a cleaning visit that turns up a crushed or corroded liner doesn’t get handed off to someone else.
We also carry the parts that fit the equipment: OEM DuraFlex components for terminations, caps, and couplings wherever they’re available, and quality aftermarket hardware only for generic pieces like clamps and sealants. Scheduling is straightforward. You tell us what the fireplace is doing, we book a sweep and a Level 2 inspection, and you get a written estimate before any repair starts.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common DuraFlex Chimney Cleaning Problems We Solve in Mehlville
- Spalling clay tile around the liner. In original 1950s-70s Mehlville flues, the tile surrounding a DuraFlex liner is often the part that fails first, not the liner. Freeze-thaw cycles crack the mortar and let water behind the tile, where it works on the liner’s outer surface.
- Rusted, seized dampers. Many of these brick ranches switched to forced-air gas heat long ago and the fireplace sat unused. Decades of disuse leave damper hardware frozen shut and the liner-top termination corroding.
- Nests, stale soot, and acidic creosote. A fireplace can look untouched from the living room while the flue behind it holds animal nests and old soot packed against the liner. Humid summers let that residue go sour and acidic between heating seasons.
- Crown and flashing deterioration. A cracked crown or failed flashing lets water track down the flue and corrode the liner at its top section, and it’s a frequent cause of a liner-to-cap connection that works loose.
- Liner separation and loose caps. When a retrofit liner was installed years ago without a proper top plate, wind and settling can pull the termination loose. We re-secure or re-cap before that becomes a water intrusion problem.
DuraFlex Service in Mehlville: What Local Conditions Mean for Your Equipment
Here’s the local detail that shapes every DuraFlex call we take in Mehlville. The bulk of the housing is post-war brick and brick-veneer ranches and split-levels built between roughly 1950 and 1975, most of them now on a second or third owner. Those homes were built with clay-tile flues, and most were never relined. So when a DuraFlex liner is already present, it is almost always a later retrofit, and the original clay tile around it is what ages out first. We look at the surrounding masonry with as much attention as the liner itself, because a stainless liner can be in fine shape while the tile and mortar holding it are washing out. Homes on their second or third owner in these tracts tend to have deferred chimney maintenance as the norm, and a sweep is often the first trade to touch the flue in a very long time. We treat it that way, starting with what the masonry and the liner are actually doing.
DuraFlex Models & Products We Service in Mehlville
We service the full range of DuraFlex flexible stainless liner products you’d find inside a Mehlville flue: the DuraFlex SW smooth-wall liner, the DuraFlex Pro double-wall liner, the DuraFlex 316L all-fuel liner, and the standard single-wall flexible liner. In practice that means we inspect and clean whatever’s installed, then choose parts that fit the specific liner rather than forcing a generic cap or coupling onto it. We use OEM DuraFlex components for terminations, caps, and couplings where they’re available. If a liner is sound, we clean it, re-secure it, and re-cap it. If it’s crushed, corroded through, or the surrounding clay tile is failing, replacement is usually the honest answer.
See the difference
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After
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After
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AfterDuraFlex Service Pricing in Mehlville
Pricing is per job by a written estimate, and the estimate is free. What drives the cost is condition, not square footage: a flue packed with heavy soot and nests takes longer than a maintained one, and Level 2 Inspection, creosote removal, and cap installation each carry their own line. A sweep on a fireplace that’s been serviced is the lightest job. One that hasn’t been touched in years, with a damaged crown and a loose cap, takes more time and more materials. We put the scope and the final price in writing before any work begins, so nothing is added later without your say. Call (866) 596-7310 for an exact quote. Estimates are free.
Serving Mehlville, MO – Our Local Coverage Area
We serve Mehlville and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Mehlville
A summer smell usually means stale soot, creosote, or a nest is sitting in the flue against the liner, and the humid air pulls that odor back into the room through the firebox. The fix is a full sweep plus a Level 2 inspection to confirm there’s no water intrusion or liner damage behind it. Call (866) 596-7310 to book it.
Yes, in the sense that the inspection has to cover both the liner and the surrounding tile. A bare flue is checked surface to surface, while a DuraFlex installation means checking the liner itself and the clay tile and mortar around it, since the masonry is often the older, weaker part. That’s why we run a top-to-bottom Level 2 inspection on any chimney with a liner in it.
Most of these homes converted to forced-air gas heat years ago, so the fireplace sat unused and the damper never moved. Decades of disuse, humidity, and freeze-thaw swings corrode damper hardware and the cap, and a cap that’s cracked or missing lets water run straight down onto the liner’s top. We clean and free seized hardware where we can and replace what’s actually failing.
Yes. A flexible stainless liner is cleaned with brushes and methods matched to it rather than the heavier tools used on bare tile, and the inspection that precedes the sweep tells us what we’re working around. If the liner already has a defect, we stop and show you before anything adds to it.
Get it inspected before spending money on a guess. Spalling tile means water is getting in and the mortar around the liner is failing, which is the most common serious finding in Mehlville’s 1950s-70s flues. Depending on what the camera shows, the honest answer may be repointing, re-crowning, or relining, and sometimes the work can safely wait a season. Call (866) 596-7310 for a free estimate.
Service Areas Near Mehlville
Because Mehlville sits in the middle of south St. Louis County’s older brick tracts, we cover the nearby communities with the same housing stock and the same DuraFlex needs: Mehlville itself, plus Lemay, Affton, Webster Groves, Clayton, and St. Louis. If you’re not sure whether your address is in range, call and we’ll let you know. The same inspection-first approach applies to every one of them.
Book Your DuraFlex Service in Mehlville Today
If your fireplace smells smoky, your cap looks tired, or the flue simply hasn’t been swept in far too long, get it looked at properly. Call (866) 596-7310 for a free estimate on a sweep, a Level 2 inspection, or creosote removal. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by the team at Hawk Chimney Sweep.