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.
Gelco Chimney Liner & Rebuild in Frisco: What to Know First
We provide independent Gelco chimney liner and rebuild service in Frisco, with most liner replacements quoted and scheduled within 48 hours and rebuilds typically running three to five days once parts are confirmed. Every job starts with a written price, a written scope, and a written warranty before any work begins - no exceptions, no surprises. This page is for Gelco owners in Frisco, Starwood, and nearby who need straight information on what’s failing, what it costs, and what documentation they’ll walk away with. Call (940) 290-7230 for a free estimate or a free second opinion on any written quote you’ve already received.
How Gelco Products Fail - and How We Fix Them
- Gelco UltraPro rigid stainless liners in Frisco’s clay-heavy soils often show bottom-section corrosion where condensation pools below the damper throat. The UltraPro’s 304-grade lower collar wasn’t upgraded to 316L until the 2019 series, so pre-2019 installs in homes with gas inserts are particularly prone. We section-scan with our camera to confirm wall thickness, then replace with 316L equivalent or transition to DuraFlex Pro if the flue run has offsets that make rigid pipe a fight.
- Gelco flexible liners in the MultiFlex series develop longitudinal seam splits near the top third of the flue, especially where Frisco’s summer heat cycles meet winter gas condensation. The MultiFlex uses a locked-seam construction that can work-harden at stress points. We find the split with a down-flue camera pull, mark the footage timestamp for your record under Haven Standard Clause 4, and sleeve or replace depending on whether the split has propagated past two feet.
- Gelco ProForm poured refractory liners crack at the smoke chamber shoulder where the flue narrows - a geometry issue, not a materials defect. The ProForm’s castable mix sets hard but can’t flex with thermal expansion at that angle. We chip out the failed section, inspect the surrounding brick for spalling, and re-pour with HeatShield Cerfractory Foam or switch to a stainless insert if the surrounding masonry is too compromised to hold a new cast.
- Gelco chimney caps and chase covers in the Classic and Premier lines let water track under the lid during Frisco’s March and October wind-driven rain events. Water hits the liner top, accelerates corrosion at the flue collar, and masks as a liner failure when it’s actually a cap flashing problem. We replace the cap with a proper overhang and screen height, then re-evaluate the liner - sometimes saving the owner a full replacement.
- Gelco oval-to-round adapter transitions on fireplace insert installs loosen at the mechanical joint after three to five years of thermal cycling. The adapter’s draw-band clamp wasn’t designed for the expansion range of Frisco’s temperature swings, which can run 40 degrees in a single winter day. We reseat with a proper tailpipe extension and add a locking-band secondary restraint, documented in the photo record so the next tech knows what was modified.
Our Gelco Chimney Liner & Rebuild Process

- 1
Camera-scan inspection (NFPA 211 Level 2). Corrine or one of our techs runs a camera the full flue length, narrating findings in real time. The footage is archived under Haven Standard Clause 4, with timestamps keyed to problem areas.
- 2
Written findings with hand-sketched flue diagram. Corrine still sketches flue profiles in her truck notebook - a habit from Queens that now gets scanned into your job file. Measurements, material calls, and failure mode are named before any dollar figure is discussed.
- 3
Parts decision: OEM Gelco versus quality aftermarket. We stock Gelco-compatible components through Haven’s buying network, but we’ll specify DuraFlex or HeatShield equivalents when the application calls for it. As an independent Gelco service provider, we’re not bound to factory parts that don’t fit the job.
- 4
Written price, scope, and warranty delivered before work starts. Haven Standard Clause 1: have it in writing. You’ll know the labor hours, material specs, and warranty terms before anyone unpacks a tool.
- 5
Installation or rebuild with photo documentation. Every stage is photographed - old liner extraction, masonry condition, new component fit, and smoke test results. These go into your permanent record, not our marketing folder.
- 6
Final smoke test and 365-Day Done Right Promise activation. We pressurize and observe. If it’s not done right, we make it right. The promise is stamped on every job, and it starts the day we finish.
Before
AfterWhat Gelco Chimney Liner & Rebuild Costs in Frisco
| Service | Typical Range in Frisco | What Moves the Price |
|---|---|---|
| Gelco flexible liner replacement (single flue, standard height) | $2,800 - $4,200 | Flue length, number of offsets, whether the damper frame needs modification |
| Gelco rigid stainless liner (UltraPro or equivalent) | $3,400 - $5,100 | Elbow count, insulation wrap requirement, top plate fabrication |
| Partial chimney rebuild (firebox to shoulder) | $4,500 - $7,800 | Brick matching, lintel replacement, whether the smoke chamber is involved |
| Full chimney rebuild above roofline | $8,500 - $14,000 | Height, scaffolding complexity, cricket or saddle rebuild, cap specification |
| Gelco liner repair (seam sleeve, collar replacement, adapter reseat) | $680 - $1,900 | Accessibility, whether camera confirms localized damage or hidden extension |
These are real Frisco ranges based on jobs we’ve completed in Starwood, Newman Village, and along the Preston Road corridor. Every estimate is free, and we honor our Free Second Opinion on any written estimate you’ve already received. Call (940) 290-7230 for an exact quote.
Why Frisco Homeowners Call Level Two Chimney Frisco for Gelco Work

We’ve inspected and cleaned more than 38,000 chimneys since 2009, and the ones that stick in Corrine’s notebook are the Gelco jobs where the camera found something the flashlight missed - a MultiFlex seam split three feet down, a ProForm shoulder crack behind a layer of soot. The camera doesn’t guess. Neither do we.
Our techs are background-checked, uniformed, and assigned by name. You get a text when they’re en route. Calls are answered by a live person, 24/7. Materials come through Haven’s buying network - Gelco, DuraFlex, HeatShield, Olympia Chimney, Famco, Copperfield - so we’re specifying what’s right for the flue, not what’s left in the warehouse. Every job carries the 365-Day Done Right Promise and a documented photo record under Haven Standard Clause 4. We’ve been doing this since 2009, years before insurers or regulators asked for it.
FAQs
No. As an independent Gelco service provider, we use OEM-compatible or equivalent-spec parts, and we document everything. Gelco’s warranty covers manufacturing defects, not who installs it. We keep serial numbers and install photos in your file in case a factory claim is ever needed. Call (940) 290-7230 if you want us to review your warranty terms before we start.
Most Gelco liner replacements in Frisco are completed in one day, with the crew arriving between 8 and 9 a.m. and finishing by late afternoon. Full rebuilds run three to five days depending on masonry cure times and weather. We don’t rush cure times - Haven Standard Clause 3 requires workmanlike completion, and that means letting refractory or mortar set before the next stage. Call (940) 290-7230 to check current scheduling.
It depends on what the camera shows. Localized seam splits under two feet, collar corrosion above the damper, and adapter loosening are all repairable. Wall thinning below 24-gauge equivalent, cracks extending past the smoke chamber shoulder, or multiple seam failures mean replacement is the honest call. We show you the footage and explain which category you’re in before quoting either option. Call (940) 290-7230 for a free inspection.
We carry Gelco-compatible flexible and rigid liners, collars, top plates, and adapters through Haven’s buying network. For Frisco’s climate, we also stock DuraFlex Pro flexible and HeatShield refractory as alternatives when the application calls for better corrosion resistance or a poured solution. We don’t promise a specific brand until we’ve seen your flue - the right part follows the inspection, not the other way around. Call (940) 290-7230 to schedule.
Unlined chimneys in Frisco - common in homes built before 1985 - are a carbon monoxide and fire risk. NFPA 211 requires a liner for any vented appliance. If your chimney has a clay tile liner with cracks, missing sections, or gaps at the mortar joints, it’s functionally unlined. Our camera inspection confirms liner condition in about 45 minutes, and the footage is yours to keep whether you hire us or not. Call (940) 290-7230 to book.
Written by Corrine Halstead, Owner, Level Two Chimney Frisco at Level Two Chimney Frisco, serving Frisco and nearby areas.





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