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 Inspection in Santa Clarita: What to Know First
We inspect DuraFlex chimney liners in Santa Clarita homes as an independent service provider, not a factory rep. A full camera inspection of a DuraFlex liner system typically runs $189 – $349 depending on whether it’s a standard visual check or a full Level 2 inspection with video documentation, and we complete most inspections within a single visit. You get a written price before we touch anything, and photos of whatever the camera finds so you can see it yourself.
This page is for Santa Clarita homeowners who’ve got a DuraFlex liner already installed, or found one listed on an inspection report, and want to know whether it’s still doing its job. If that’s you, call (661) 430-6125 and we’ll talk it through before we book any work.
How DuraFlex Products Fail – and How We Fix Them
DuraFlex makes a solid product, but every liner has its failure points. Here’s what we actually find on inspection calls in Santa Clarita:
- DuraFlex 316Ti alloy liners develop pinhole corrosion at the seam welds. This is the most common issue we find in the Santa Clarita Valley, where cool nights and warm days create condensation cycles inside the flue. The 316Ti alloy handles high heat well, but repeated heating and cooling takes a toll on the welded seams. Our fix: we camera the full length of the liner, map each pinhole, and quote a section replacement or full reline depending on what the video shows.
- DuraFlex Smooth Wall liners separate at factory joints after years of thermal expansion. The Smooth Wall series uses interlocking sections that can work loose in taller chimneys. A separated joint lets flue gases and heat escape into the cavity between the liner and the chimney chase, which is a fire hazard. We spot this on camera with a slight misalignment in the liner wall, then pull the affected section and reset it or replace the joint band.
- DuraFlex Pro Series caps and top plates rust out faster in Santa Clarita than the liner itself. The caps on Pro Series kits are often the first component to fail, especially on exposed chimney tops. We’ve replaced dozens of rusted DuraFlex top plates while the liner below was still serviceable. It’s worth checking the cap before assuming you need a full liner replacement.
- Aftermarket or mismatched connector boots cause liner sag in Santa Clarita heater flues. When a liner is attached to a furnace or water heater with a boot that isn’t rated for the same temperature range as the DuraFlex liner, the connection point becomes a weak link. We find this often enough that we check the connector boot on every inspection, regardless of what brand the liner is.
- Improper initial installation causes more DuraFlex failures than manufacturing defects. Liners kinked during installation, liners run without proper standoff brackets, liners undersized for the appliance, all of it shortens the liner’s lifespan dramatically. We can’t always tell from the outside, which is why we run the camera on every single DuraFlex inspection. If the install was bad, we document it and quote a fix that follows the manufacturer’s installation specs to the letter.
Styles & brands we work with





Our DuraFlex Chimney Inspection Process
- 1
You call and talk to a person. A live voice answers at (661) 430-6125, day or night. We ask what you’re seeing, what’s burning, and whether you’ve had any work done before.
- 2
We arrive with a written pricing sheet, not a guess. Before a single tool comes off the truck, you know what the inspection costs. The invoice number matches the price you approved. No door pricing games.
- 3
We run a camera through the full liner length. This shows us the condition of the DuraFlex inner wall, every joint, and the connection points at both ends. We record it and we show you the footage.
- 4
We check what’s above and below the liner too. Crown, cap, flashing, the appliance connection, and the clearances around the liner. A DuraFlex liner doesn’t work in isolation, and problems above or below the liner often cause what looks like a liner problem.
- 5
You get photos, an honest report, and a written quote. If it needs a repair, we tell you what the camera showed and what we’d do. If it doesn’t need anything, we tell you that too.
- 6
If we repair something, it’s guaranteed for a full year. Two cameras, one written report, one price. That’s the whole visit.
See the difference
Before
After
Before
After
Before
AfterWhat DuraFlex Chimney Inspection Costs in Santa Clarita
| Service | Typical Range |
|---|---|
| Level 1 visual inspection (no camera) | $149 – $189 |
| Level 2 camera inspection of DuraFlex liner | $189 – $249 |
| Level 2 inspection with full video report | $249 – $349 |
| DuraFlex liner section replacement (parts + labor) | $400 – $1,100 depending on access and liner diameter |
| DuraFlex Pro Series cap replacement | $180 – $320 |
What moves the price: roof pitch, chimney height, whether the liner runs through an enclosed chase or an easy-access masonry chimney, and whether we need to remove a cap or crown section to get the camera in. Nobody in Santa Clarita should pay for a mystery. Call (661) 430-6125 and we’ll give you an exact number before we schedule the truck.
Why Santa Clarita Homeowners Call Flint Chimney Co Santa Clarita for DuraFlex Work
We’ve been cleaning and inspecting chimneys for going on two decades, and for several years now we’ve covered Santa Clarita and the surrounding canyon communities. We’ve worked on enough DuraFlex installs in Stevenson Ranch and Valencia to know where these liners fail before we even put the camera up. When we see a DuraFlex liner in a house, we know which joints to check first, which caps tend to rust in this climate, and whether the install was done right or whether somebody took shortcuts.
Every repair we make comes with a written guarantee that’s valid for a full year, and if a covered repair fails during that year, we return at no charge. No arguing, no fine print. We work with HeatShield and Gelco as backup products when a DuraFlex liner needs a different solution, but we never push a material because it has a better margin. We quote the material the job actually needs.
Clean flue, honest price – that’s the whole job.
FAQs
No. An inspection by an independent Santa Clarita chimney company does not void a DuraFlex warranty. What voids warranties is improper installation, unauthorized modification, or using the liner outside its rated application. We document everything with photos so if you ever need a warranty claim, you have evidence from an independent inspection.
Yes. DuraFlex connectors, caps, top plates, and replacement sections are still available through chimney supply channels, and as an independent DuraFlex service provider we order them directly. For some older DuraFlex models, we may recommend a current equivalent part if the exact original isn’t made anymore. Call (661) 430-6125 and we can tell you if your liner’s parts are still in production.
We replace a liner when the camera shows pinholes or corrosion across more than about a third of the liner’s length, or when joints have separated in multiple places. A single bad section or one failed cap is usually repairable. We’ll show you the video and let you see the decision yourself before we quote any work.
Most camera inspections run 45 minutes to an hour and a half, depending on roof access and how many things we’re checking. You’ll get the report and photos before we leave the driveway, not days later.
You need the camera. A visual look can’t show you what’s happening inside the liner, and that’s where DuraFlex failures start. Cracked seams, pinholes, separated joints, none of that is visible from the top or bottom. We run the camera on every DuraFlex inspection because anything less is a guess dressed up as a check.
Written by Hank Delano, Owner, Flint Chimney Co Santa Clarita at Flint Chimney Co Santa Clarita, serving Santa Clarita and nearby areas.