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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Before
AfterDuraFlex Chimney Liner & Rebuild in Pasadena: What to Know First
We provide independent DuraFlex chimney liner and rebuild service throughout Pasadena, with most liner replacements completed in one day and full rebuilds scheduled within a week. Every job starts with a camera-scan inspection and written price before any work begins, backed by our 365-Day Done Right Promise. This page is for Pasadena homeowners who’ve been told their DuraFlex liner has failed, are comparing quotes, or want to understand why their stainless steel liner is showing rust, gaps, or draft problems. Call (213) 459-6058 for a free estimate.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SW 304 and SW 316 flexible liners develop circumferential cracking near the first elbow above the smoke chamber, especially in Pasadena’s older Bungalow Heaven and Madison Heights homes where offset flues force sharp bends. The crack starts from thermal cycling, not defective material. We cut back to sound metal and install a factory sleeve or transition to a new DuraFlex section, documenting the weld pattern with photos.
- DuraFlex Pro 316Ti liners show titanium-stabilized alloy separation at the collar joints where previous installers overtightened hose clamps. The titanium content resists acid but not mechanical stress. We replace the collar with an OEM DuraFlex Pro coupling or a machined stainless alternative from our Haven buying network, then pressure-test the joint.
- DuraFlex SW smooth-wall liners suffer spalling of the interior weld bead in installations where Class III glazed creosote was burned off with aggressive chemical treatments. The bead surface pits, creating turbulence that accelerates soot buildup. We scope the full length, mark the damaged sections, and sleeve or replace depending on pit depth measured against NFPA 211 wall-thickness minimums.
- DuraFlex relining kits with top-mounted termination caps leak at the storm collar in Pasadena’s Santa Ana wind conditions, driving rainwater between the liner and clay tile. The cap itself is sound; the failure is sealant degradation from UV and thermal shock. We reseat the cap with high-temp silicone rated to 600°F and add a secondary cricket flashing where the chimney meets a sloped roof.
- DuraFlex liners in homes near the Arroyo Seco corrode faster from moisture trapped by heavy tree canopy and poor crown overhang. The 304 alloy versions show this first. We upgrade to 316 or 316Ti on replacement, extend the crown drip edge, and include a pull-down photo record showing the before condition, the new liner termination, and the corrected crown profile.
Our DuraFlex Chimney Liner & Rebuild Process
- 1
Camera-scan diagnosis. We run a chimney camera the full flue length per NFPA 211 Level 2, recording video and stills of liner condition, joint integrity, and masonry state. Corrine Halstead reviews the footage with you before quoting anything.
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Written scope and price. You receive a written price, written scope, and written warranty before work starts, per Haven Standard Clause 1. No exceptions.
- 3
Parts decision. We source DuraFlex OEM or quality aftermarket equivalents through our Haven buying network with Gelco, Olympia Chimney, and Famco. If your original DuraFlex is under manufacturer warranty, we use OEM to preserve coverage.
- 4
Installation or rebuild. Our crew installs the liner with proper centralizers, insulation wrap where required by code, and a new termination assembly. For partial or full rebuilds, we match existing brick and mortar profiles.
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Smoke and draft test. We verify proper draw with a manometer and visual smoke pellet test, documenting readings in your job record.
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Photo archive and guarantee. Clause 4 of the Haven Standard requires a documented photo record on every job. You get the files, plus our 365-Day Done Right Promise in writing.
BeforeAfterWhat DuraFlex Chimney Liner & Rebuild Costs in Pasadena
| Service | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex liner repair (sectional sleeve) | $1,400 - $2,800 | Accessibility of the damage point, need for scaffolding |
| DuraFlex full liner replacement (single flue) | $3,200 - $5,500 | Flue length, diameter, insulation requirements, termination type |
| DuraFlex liner + partial rebuild (crown, top courses) | $5,800 - $9,400 | Crown size, brick matching difficulty, flashing complexity |
| Full chimney rebuild with new DuraFlex liner | $12,000 - $18,500 | Height, scaffolding needs, hearth extension, permit requirements |
Pasadena’s hillside lots in Linda Vista and San Rafael often require extended scaffolding, which adds $800-$2,400. We itemize this in writing before you commit. Call (213) 459-6058 for an exact quote, estimates are free.
Why Pasadena Homeowners Call Level Two Chimney Pasadena for DuraFlex Work
We’ve inspected over 38,000 chimneys since 2009, every one with a camera down the flue and a written price before work started. Our technicians are background-checked, uniformed, and assigned by name, you’ll get a text when yours is en route. We carry DuraFlex, HeatShield, and Gelco materials so we’re not pushing one brand because it’s all we stock. The 365-Day Done Right Promise means if the liner fails because of our installation, we make it right. And our Free Second Opinion on any written estimate lets you bring us a competitor’s DuraFlex quote to compare against our scope and pricing.
FAQs
No, DuraFlex warranties cover manufacturing defects regardless of who installs or services the liner, provided the work follows their installation guidelines. We document our methods with photos to support any future warranty claim you might need to file with DuraFlex directly. Call (213) 459-6058 if you’d like us to review your warranty paperwork before we start.
Most single-flue DuraFlex liner replacements in Pasadena are completed in one day, with the crew arriving between 8 and 9 a.m. and finishing by late afternoon. Full rebuilds requiring scaffolding permits from the City of Pasadena typically schedule within 5 to 7 business days. We’ll give you a firm date in writing when you approve the scope.
We can repair sectional damage if the remaining liner wall thickness meets NFPA 211 minimums and the damage is accessible. The camera doesn’t negotiate, it just shows what’s there. If the scope shows pitting, cracking, or separation exceeding code limits, we’ll quote replacement and explain exactly why repair isn’t safe.
We stock common DuraFlex diameters and termination components at our Pasadena warehouse. Uncommon sizes or Pro 316Ti specialty collars ship within 2 to 3 business days through our Haven buying network. We never start a job without confirming parts in hand.
NFPA 211 recommends annual Level 2 inspection for solid-fuel systems, which includes a camera scan of the liner. In Pasadena, where many DuraFlex liners serve as inserts in unlined masonry chimneys, we also recommend inspection after any seismic event or if you notice draft reversal, smoke odor, or visible rust at the cleanout. Call (213) 459-6058 to schedule, estimates are free.
Written by Corrine Halstead, Owner, Level Two Chimney Pasadena at Level Two Chimney Pasadena, serving Pasadena and nearby areas.