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 Repair in Frisco: What to Know First
We provide independent Gelco chimney repair in Frisco, typically scheduling within 3-5 business days and delivering a written price before any work starts. Most Gelco repairs run $340-$1,800 depending on whether we’re repointing mortar joints, rebuilding a spalled crown, or replacing compromised flashing. The camera goes down the flue on every visit, and you get the footage and our written scope before we quote a dollar.
This page is for Frisco homeowners who bought a Gelco chimney cap, chase cover, or liner system between 2015 and 2023 and now need repair work. Maybe water’s coming through the chimney chase in Starwood after a spring hailstorm, or the Gelco Multi-Flue cap on your Stonebriar home has pulled away from the flue wall. Wherever you are in Frisco, call (940) 290-7230 for a free estimate. Corrine Halstead and our crew have been working Gelco systems here for years.
How Gelco Products Fail - and How We Fix Them
- Gelco Multi-Flue cap mesh separation. The stainless mesh on these caps can fatigue at the weld points after 6-8 North Texas summers of thermal cycling, 105°F down to hard freezes. We see this on homes near Legacy West and in Panther Creek. Our fix: remove the cap, re-weld or replace the mesh with a heavier-gauge aftermarket equivalent sourced through our Haven buying network, then re-bed with proper counter-flashing. OEM mesh is available, but the aftermarket spec we use outlasts it in Frisco’s expansion-contraction climate.
- Gelco chase cover corner rust-through. The pre-fabricated chase covers on 2016-2019 Gelco installations used a 24-gauge galvanized steel at the drip edges that doesn’t hold up to Frisco’s occasional ice accumulation plus the alkaline runoff from concrete tile roofs common in newer builds. We fabricate a replacement chase cover in 304 stainless or copper, measured to your chase, with a cross-break to shed water. The camera doesn’t guess. Neither do we - we photo-document the rust pattern before quoting so you see why replacement beats patching.
- Gelco single-flue cap fastener backing out. The self-tapping screws Gelco specs for masonry attachment can back out of soft Texas limestone or deteriorating mortar joints, especially after vibration from nearby construction. In Frisco’s Frisco Square and The Trails neighborhoods, we’ve found caps tilted 15 degrees with live ember exposure. We re-seat with expansion anchors into sound masonry, or if the course is too far gone, we repoint first under Clause 1 of the Haven Standard - written scope, written price - then re-attach.
- Gelco liner collar corrosion at the thimble. Gelco’s stainless flex liners with factory thimble collars can show crevice corrosion where condensate pools at the appliance connection, particularly on 80% furnaces in unconditioned Frisco attics during shoulder seasons. We cut back to sound metal, install a DuraFlex or HeatShield transition collar with proper slope to drain, and run a new camera pass to confirm the joint. OEM Gelco collars are 4-6 week lead time; our aftermarket solution ships in 48 hours and carries the same 10-year material warranty.
- Gelco crown wash cracking at the flue interface. Gelco’s poured-concrete crown wash, when installed over a clay flue liner without proper expansion joint material, cracks vertically within 3-5 years as the flue heats and the concrete doesn’t. Frisco’s clay soils transmit foundation movement to the chimney stack, accelerating the split. We grind out the crack, install a bonded expansion joint, and re-pour with a polymer-modified crown mix rated for 150 freeze-thaw cycles. On two Starwood jobs last year, we caught this before water reached the smoke chamber.
Our Gelco Chimney Repair Process

- 1
Call and schedule. A live person answers, 24/7. We book a 2-hour arrival window and text you when the tech is en route.
- 2
NFPA 211 Level 2 inspection with camera. The tech runs a camera from the firebox or appliance connection to the crown, documenting liner condition, mortar joints, crown integrity, and any Gelco component failure pattern. You get the footage on a tablet before we discuss findings.
- 3
Written scope and price. Corrine or the tech sketches the flue diagram by hand, notes measurements, and delivers a written price with parts specified - OEM Gelco or aftermarket equivalent, with the trade-off explained. No work starts until you sign.
- 4
Repair with documented steps. We photograph each stage: before, during, after. For a Gelco cap reinstallation, that’s the stripped flue top, the anchor embedment depth, the torqued fastener, and the water-test result.
- 5
Final camera pass and test. Another camera run confirms the repair hasn’t introduced obstruction or misalignment. Gas appliances get a draft reading; wood fireplaces get a smoke-puffer test.
- 6
Photo record and warranty. You receive a documented photo record under Haven Standard Clause 4, plus the 365-Day Done Right Promise in writing. Payment is due only after you review and approve the completed documentation.
Before
AfterWhat Gelco Chimney Repair Costs in Frisco
| Repair Type | Typical Range | What Moves the Price |
|---|---|---|
| Gelco cap mesh re-weld / replacement | $340-$580 | Mesh gauge, single vs. multi-flue, access height |
| Chase cover replacement (stainless) | $720-$1,400 | Chase dimensions, material (304 SS vs. copper), pitch |
| Mortar repointing / tuckpointing (local) | $480-$950 | Linear feet, joint depth, scaffold need |
| Crown wash rebuild with expansion joint | $680-$1,200 | Crown size, flue count, polymer additive spec |
| Partial chimney rebuild (above roofline) | $1,400-$3,200 | Brick match, liner exposure, cricket complexity |
These are real Frisco numbers from jobs we’ve completed in Starwood, The Trails, and near Panther Creek - not national averages padded for negotiation. Every estimate is free, and we honor our Free Second Opinion on any competitor’s written quote. Call (940) 290-7230 for your exact figure.
Why Frisco Homeowners Call Level Two Chimney Frisco for Gelco Work

We’re independently owned and operated, not a franchise, and we’ve been holding to the Haven Standard since 2009. That means background-checked, uniformed techs with license numbers you can verify; a written price before any work starts; and a documented photo record on every visit under Clause 4.
We know Gelco’s product lines because we’ve repaired hundreds of them across Frisco. When an OEM part is back-ordered or overpriced, we have quality aftermarket alternatives through DuraFlex, HeatShield, and our Haven buying network - procured specifically to keep customer prices honest, not to cut corners. And if something’s not right, the 365-Day Done Right Promise means we make it right. No voicemail trees, no “call for a quote” runaround. Just the inspection, the evidence, and the written price.
FAQs
No - provided the repair uses equivalent or OEM-spec materials and doesn’t alter the system’s listed design. As an independent Gelco service provider, we document every part spec and installation detail so your warranty record stays clean. Call (940) 290-7230 if you need us to review your original installation paperwork.
OEM Gelco caps and chase covers typically ship in 5-10 business days; specialty liner collars can stretch to 4-6 weeks. We stock common aftermarket equivalents that meet or exceed Gelco spec and ship in 24-48 hours, with the same material warranty. We’ll quote both options and let you decide.
Most Gelco systems we see in Frisco are repairable if the structural masonry is sound and the liner is intact. Rebuilding enters the conversation when we find spalled brick through multiple courses, a shifted or detached liner, or crown failure that has allowed water into the smoke chamber for multiple seasons. The camera footage tells the story - we show you before recommending either path.
NFPA 211 calls for annual inspection for all chimney systems, regardless of brand. In Frisco, we recommend pre-burning-season checks because our hard freeze-thaw cycles stress mortar and crown materials more than steady-cold climates. Gelco stainless components resist corrosion well, but the masonry they protect doesn’t. Call (940) 290-7230 to book before the first fire.
Water intrusion through a failed Gelco cap or crown crack damages the flue liner, smoke chamber, and surrounding framing - not immediately, but predictably. Carbon monoxide can leak through deteriorated mortar joints. Chimney fires start in cracked flues where creosote accumulates behind the break. We don’t scare-sell; we show you the camera footage and let the evidence speak. If work can safely wait, we’ll say so in writing.
Written by Corrine Halstead, Owner, Level Two Chimney Frisco at Level Two Chimney Frisco, serving Frisco and nearby areas.





Before
After
Before
After