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 Pasadena, CA | Flint Chimney Co Pasadena
We provide independent DuraFlex chimney cleaning and repair across Pasadena. Nobody pays us to favor one liner brand over another, which means when we tell you a DuraFlex liner is sound or shot, you’re getting a straight answer. The work here gets specific because Pasadena’s pre-1940 chimneys were built for coal, not for the gas and wood stoves burning in them now. Call (626) 657-5513 for a flat quote before any tool comes off the truck.
We’ve been under the Garrison Standard since 2002. That means a written price first, a written guarantee on every repair, and a uniformed tech who shows up on time. Our DuraFlex sales & service work runs from quick sweeps to full liner tear-outs in Bungalow Heaven, Madison Heights, and over by the Arroyo Seco. If you’re searching for a crew that treats a 1924 Craftsman chimney like the structural system it is, you’ve found us.
Why Pasadena Residents Choose Us for DuraFlex Service
Hank Delano spent his early twenties in the HVAC and sheet metal program at Los Angeles Trade-Technical College and has been cleaning chimneys for going on eighteen years. His crew has worked everything from Craftsman bungalows near the Arroyo Seco to Spanish Colonials in Madison Heights. That matters when you’re dealing with a DuraFlex liner inside a fireplace that was originally built for nothing but wood.
Pasadena’s housing stock gives us a very particular kind of repetition. We see the same four or five chimney layouts over and over, and we know exactly where a DuraFlex liner will kink on a tight 1920s smoke chamber offset. We carry genuine DuraFlex clamps, top plates, and caps, plus UL-listed stainless aftermarket equivalents so we’re not waiting on a parts house when your liner needs a fast repair. Written price first. Full-year guarantee on repairs. That’s the whole deal.
Styles & brands we work with





Common DuraFlex Chimney Cleaning Problems We Solve in Pasadena
- Creosote glaze on 316L liner walls. Pasadena’s wood-burning season is sporadic, and when a fireplace sits idle for months at a time, creosote hardens into a glaze that a standard brush won’t touch. This is the most common issue we see on DuraFlex 316L liners in this city. Chemical glaze remover followed by a rotating brush gets the flue back to drawing.
- Liner kinking at offset smoke chambers. Original single-wythe brick chimneys in Pasadena often have tight, offset flue dimensions. If a DuraFlex liner was pulled through one of those offsets years ago, it can oval or kink over time. We diagnose this with a Level 2 camera inspection, because you can’t see a kink from the roof.
- Pitting inside AL29-4C liners on gas appliances. High-efficiency gas appliances produce acidic condensation. If the liner wasn’t sloped right or lacks proper drainage, that condensation sits and pits the interior of an AL29-4C liner. We see this on gas fireplaces and furnaces across Pasadena’s older homes.
- Tears at connection points after seismic activity. When old masonry shifts, even a few millimeters, it can abrade a flexible steel liner where it connects to the top plate or appliance collar. After any tremor that’s strong enough to rattle windows, a camera inspection is the cheapest insurance you can buy in Pasadena.
- Squirrel and bird nesting in uncapped flues. In Bungalow Heaven and Madison Heights, original chimneys frequently lack proper caps. Chimney swifts and squirrels claim them every spring. We remove the nest, inspect the liner for damage, and install a multi-flue cap with an animal guard so it doesn’t happen again.
DuraFlex Service in Pasadena: What Local Conditions Mean for Your Equipment
Here’s the Pasadena-specific fact that matters for DuraFlex owners: this city requires a mechanical permit for relining a chimney when you change fuel type, and a Level 2 inspection is mandatory after any earthquake that causes visible cracks or spalling. Walk any block in Bungalow Heaven and you’ll see it. Homes from the 1910s and 1920s were built with unlined or clay-tile flues, and decades later someone pulled a DuraFlex liner through without pulling a permit. Now the liner has shifted, or the old tile behind it has cracked, and nobody has ever verified the thing is still safe. Our DuraFlex work always starts with a Chimney Inspection in Pasadena to verify permit status and check post-quake flue integrity. If the previous liner job wasn’t permitted, we’ll tell you plainly what that means and what it takes to make it right. The flue either draws or it doesn’t. Let’s find out which.
DuraFlex Models & Products We Service in Pasadena
We work on the full DuraFlex flexible liner line: 316L stainless, AL29-4C stainless, DuraFlex Pro, and Smooth Wall. Every one of them turns up in Pasadena, and every one fails in its own way. We keep genuine DuraFlex replacement components on hand when the supply house has them, and when they don’t, we carry equivalent UL-listed aftermarket stainless parts in the truck so a repair doesn’t stretch into a two-week wait. Our rule on liners: if more than 30 percent of the circumference shows thinning or corrosion, we replace rather than patch. We’ll show you the camera footage that justifies the call.
See the difference
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AfterDuraFlex Service Pricing in Pasadena
A standard DuraFlex chimney cleaning in Pasadena typically runs $189 to $279 depending on liner length and condition. If glaze removal is required, add $75 to $150 for chemical treatment. Level 2 camera inspections run $149 to $199 and are worth every dollar on a pre-1940 chimney. Full liner replacement, when a liner is genuinely shot, starts around $1,900 and climbs based on flue height, access, and the condition of the original masonry. Every job gets a written flat price before we start, so the invoice number is the number you approved. Call (626) 657-5513 for an exact quote for your chimney.
Serving Pasadena, CA - Our Local Coverage Area
If you need a Chimney Sweep in Pasadena, we’re based in the area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – DuraFlex Chimney Cleaning in Pasadena
No. Cleaning and repair of an existing liner inside an existing masonry chimney doesn’t require a permit in Pasadena. Permits come into play when you change fuel type or reline a chimney that was never permitted for its current use. Ask us and we’ll tell you exactly where your chimney stands before any work begins. Call (626) 657-5513 for a straight answer on your specific setup.
Santa Ana winds don’t directly increase creosote production, but they do change how often Pasadena homeowners use their fireplaces. A warm, dry wind pushes people to skip fires for weeks at a time, and those long idle periods let soft creosote harden into a glaze that’s harder to remove. We see more glazed 316L liners in Pasadena after warm stretches than after cold ones. Call (626) 657-5513 for a sweep and inspection before the next burn season.
Yes and yes. A squirrel can’t chew through stainless steel, but nests block the draft and hold moisture against the liner wall, which accelerates corrosion at the contact point. Missing caps on Bungalow Heaven chimneys make this an every-spring occurrence. We remove the nest, inspect the liner, and install a proper cap with an animal guard. Call (626) 657-5513 if you’ve had a visitor in your flue.
The hairline cracks in the brick don’t necessarily mean your DuraFlex liner is compromised, but Pasadena’s seismic code requires a Level 2 inspection after any earthquake that causes visible cracks or spalling. The liner is what channels smoke, but if the masonry around it has shifted, the liner’s connection points could be torn or abraded. We won’t guess at that. We send a camera down. Call (626) 657-5513 to book the inspection.
Different service. The AL29-4C is a gas liner, and gas doesn’t produce creosote. What gas does produce is acidic condensation that can pit the liner from the inside. We inspect AL29-4C liners with a camera and clean out any debris, but the service is less about creosote removal and more about verifying drainage and interior integrity. Call (626) 657-5513 to have your gas liner checked.
Service Areas Near Pasadena
We work all over the San Gabriel Valley and the edge of Los Angeles proper. Beyond Pasadena itself, our crews cover DuraFlex service in Glendale, DuraFlex service in Burbank, along with Arcadia, Highland Park, and East Los Angeles. If you’re within a reasonable drive of our Pasadena shop, we’ll come out. Check our Pasadena service area page for the full list of neighborhoods we cover.
Book Your DuraFlex Service in Pasadena Today
We answer the phone. We show up on time. We put the price in writing before we start. And every repair carries the 365-Day Done Right Promise: if a covered repair fails within a year, we come back free. Call (626) 657-5513 now for a free estimate on your DuraFlex chimney cleaning in Pasadena.
Written by Hank Delano, Owner at Flint Chimney Co Pasadena, serving Pasadena since 2002.