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 Sweep in Long Beach: What to Know First
We provide independent DuraFlex chimney sweep and inspection in Long Beach, typically completing a standard sweep and Level 1 inspection in 90 minutes to two hours. A routine DuraFlex sweep in Long Beach runs $189 – $289, and we give you a written price before any work starts, so the number you approve is the number on the invoice. We’re not affiliated with or authorized by DuraFlex, and we’ll never pretend otherwise: as an independent DuraFlex service provider, our job is straight facts about what your flue needs, nothing more.
This page is for Long Beach homeowners with a DuraFlex liner, usually installed as a stainless steel replacement for an older clay tile flue. You’ll find what actually fails on these liners, what we do about it, and what you should expect to pay. Hank Delano and the crew have been sweeping DuraFlex liners in Long Beach for years, from Craftsman fireplaces in Belmont Heights to newer gas units near the waterfront. Need a sweep? Call (562) 317-7262.
How DuraFlex Products Fail – and How We Fix Them
DuraFlex makes a solid product, but no liner lasts forever. Here’s what we actually see on Long Beach chimneys, series by series:
- DuraFlex 316L smooth-wall liners: corrosive condensate at the base. These are common as wood-burning fireplace replacements in older Long Beach homes. The smooth-wall design moves smoke efficiently, but in Long Beach’s marine air the temperature differential between the hot flue gases and the cool ocean breeze can produce acidic condensate where the liner meets the appliance. Left alone, that turns into pinhole corrosion in as little as eight years. We sweep these with polypropylene brushes to avoid scratching the smooth wall, then bore-scope the lower 18 inches. If we find early-stage pitting, we tell you plainly, and the fix is usually a HeatShield or Gelco resurfacing, not a full liner tear-out.
- DuraFlex 430 flexible corrugated liners: creosote packing in the corrugations. The 430 series is a workhorse for wood stoves, and it’s been installed in Long Beach since the early 2000s. The corrugated profile has more surface area than smooth wall, and creosote settles into the valleys. In a dry Southern California climate, that creosote can harden into a glassy stage-three glaze that a standard sweep won’t fully remove. We address this with a stiff wire brush pass, then a rotary whip if the build-up is heavy, and we’ll check that the liner hasn’t ovaled from repeated heating. A warped corrugation can’t be restored; it gets a section re-sleeved, not re-crimped.
- DuraFlex DL (double-wall) liners: connector slippage at the appliance collar. The DL series pairs an inner liner with an outer air gap, which is great for insulation but creates a classic weak point: the connector fitting where liner meets stove or insert. On Long Beach earthquake retrofits, we’ve seen connector bands slip when the chimney stack shifts, even a half inch. That gap lets the liner pull away from the appliance, which means smoke can enter the chase instead of the flue. Our inspection routine checks that connector first, and if it’s slipped, the repair is a mechanical re-secure, not a liner replacement. We’ll show you the borescope footage either way.
- DuraFlex 316Ti titanium-stabilized liners: weld seam separation after burn bans and quick reheats. The 316Ti is the premium line, built for high heat. Where we see failures is in situations where a homeowner burns hot after a long off-season, especially if the liner is sized tight to the flue. The sudden thermal shock stresses the longitudinal weld. We see hairline seam separation on borescope inspection more often in Long Beach homes near the water where damp spring air keeps masonry cool while the liner heats fast. If we find a seam gap, that’s a liner integrity issue, not a cleaning one, and we’ll recommend the appropriate repair with no pressure. We’ll also tell you what’s still safe to burn and what isn’t.
- OEM vs. aftermarket parts: here’s what matters for your warranty. DuraFlex’s warranty covers liner material defects but does not cover labor or damage from improper cleaning or installation. If your liner is still under warranty, we recommend OEM connector kits and top plates for any repair work, because mixing aftermarket pieces can void a claim. The parts cost is usually $30 to $80 more per fitting, and you should know that number up front. On out-of-warranty liners, quality aftermarket connectors are often fine, and we’ll state exactly which brand and spec we’re installing before we install it.
Styles & brands we work with





Our DuraFlex Chimney Sweep Process
Here’s how a DuraFlex job runs from the call to the close-out, no surprises in between:
- 1
Call and book. A live person answers, not a voicemail tree. We set a window, and we show up inside it, background-checked techs in uniform.
- 2
Arrive and assess. We lay down drop cloths and run the vacuum before tools come off the truck. Then we check the firebox, damper, and accessible liner section by eye.
- 3
Inspect by camera. Every DuraFlex sweep includes a borescope inspection. You see what we see on a screen in real time. If the liner is clean, we tell you that. If it’s not, you see exactly where and why.
- 4
Clean to spec. We brush from the top down with brushes sized to your liner’s diameter and profile. Smooth-wall liners get poly brushes; corrugated gets wire. Creosote is bagged and removed, not left on the roof.
- 5
Document and price. After the sweep, we deliver a written inspection report with photos and a written price for any repair we recommend. Nothing gets approved on a verbal handshake. You decide, we document.
- 6
Guarantee the work. Every repair we complete carries the 365-Day Done Right Promise in writing. If a covered repair fails within one full year, we return at no charge, no argument.
See the difference
Before
After
Before
After
Before
AfterWhat DuraFlex Chimney Sweep Costs in Long Beach
Here are the numbers we quote on the phone, no runaround:
- Standard DuraFlex sweep with Level 1 inspection: $189 – $289 depending on flue height and fuel type.
- Sweep + Level 2 camera inspection: $349 – $449, and the video report is included, not an upcharge.
- Heavy creosote removal (stage 2 or 3): add $100 – $180. Glaze removal is time and tooling, not markup.
- Connector repair or re-secure: typically $185 – $340 parts and labor, depending on the fitting.
- HeatShield or Gelco resurfacing (when the liner has pinholes but the structure is sound): quoted per job based on camera footage, never guessed over the phone.
What moves the price is flue height, access (roof pitch matters), and how much build-up we’re removing. What doesn’t move the price is us deciding it should go up after we start. Call (562) 317-7262 for an exact quote, free of charge.
Why Long Beach Homeowners Call Flint Chimney Co Long Beach for DuraFlex Work
We run on The Garrison Standard, the same code every Garrison Partners location follows since 2002. That’s not a marketing line; it means you get a written price before any work starts, a full-year written guarantee on every repair, and a free return visit if a covered repair fails. We also keep a live person on the phone 24 hours a day, seven days a week, because chimney problems don’t file for business hours.
We specify materials by job, not by margin. If a DuraFlex liner has small defects, we’ll tell you whether HeatShield or Gelco resurfacing is a better call than a full replacement, and we’ll show you the camera footage to prove it. Hank started doing chimney work across Southern California after learning the trade at Los Angeles Trade-Technical College, and he’s never stopped hauling a wire brush collection that borders on excessive. He keeps it because the right brush for a 316L smooth-wall flue is not the right brush for a 430 corrugated liner, and guessing is how liners get damaged. Clean flue, honest report, that’s the whole job.
FAQs
No. A professional sweep using brushes sized to your liner’s profile will not void a DuraFlex warranty, provided the sweep is documented and no corrosive chemicals are introduced. We only use mechanical cleaning and document every sweep with before-and-after photos, which is exactly what a warranty claim would require if a material defect ever surfaced.
If you’re under warranty and we find damage, we’ll tell you whether it looks like a manufacturing defect and what documentation you’d need. Call (562) 317-7262 to schedule, and we’ll keep your records straight.
Once a year is right for most Long Beach homes that burn wood. Our marine air and long dry season mean creosote isn’t just a cold-climate problem; it forms every time a fire burns below about 250°F at the flue wall, and many Long Beach evenings start with a low, slow fire. A yearly sweep keeps stage-two build-up from ever reaching stage-three glaze, which is far more expensive to remove.
If you burn only gas, you can go two years between sweeps, but the annual Level 1 inspection still matters for your liner’s condition. We’ll tell you straight if you can wait. Call (562) 317-7262 for an honest read on your schedule.
Most DuraFlex liner problems we see in Long Beach do not require full replacement. Slipped connectors, early-stage pinholes, and minor seam separation can often be handled with re-securing, HeatShield or Gelco resurfacing, or a section re-sleeve. Full replacement is a last recommendation, not a first one. We show you the camera evidence before you spend anything, so you can see the decision for yourself.
No repair is ever approved without a written price in hand. Call (562) 317-7262 to get a straight camera look at your liner.
Most sweeps in Long Beach are booked within three to five business days, and we run appointments inside the window we give you. If there’s an active problem, like smoke backing into the house or a liner concern spotted on a home inspection, tell the person on the phone and we’ll do everything possible to see you sooner. There’s a live person answering around the clock, so you’ll never wait until Monday to talk to someone.
Call (562) 317-7262 and we’ll get you on the schedule.
Every repair we complete, whether on a DuraFlex liner or any other system, carries a written guarantee valid for one full year from the service date. If a covered repair fails within that period, we return at no charge and make it right. The guarantee is included on every repair invoice, in writing, with the coverage terms stated plainly. There’s no fine print to dig for.
If you’re in Long Beach and want DuraFlex work done under a documented, written guarantee, call (562) 317-7262.
Written by Hank Delano, Owner, Flint Chimney Co Long Beach at Flint Chimney Co Long Beach, serving Long Beach and nearby areas.