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.
Before
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AfterGelco Chimney Liner & Rebuild in Shelton: What to Know First
We provide independent Gelco chimney liner & rebuild in Shelton, typically completing most jobs in a single visit with no-hassle upfront pricing agreed before we start. A Gelco liner replacement runs $2,800-$4,500 depending on flue count and height; partial rebuilds start around $3,200. We’re not here to sell you a full rebuild when a targeted liner repair will do - Russell Haines and our techs assess what the chimney actually needs, show you the photos, and fix only that.
This page is for Gelco owners in Shelton, Huntington Center, and the older neighborhoods along the Housatonic who’ve been told they need major chimney work and want a second opinion from someone who knows these products cold. Call (475) 265-6822 - a live person answers, 24 hours a day.
How Gelco Products Fail - and How We Fix Them
- Gelco UltraPro stainless liners develop seam separation at the flex points after 15-20 years of Shelton’s freeze-thaw cycles. The factory weld at the corrugation weakens, not from bad material but from thermal cycling in tall, uninsulated flues common in the 1970s colonials off Route 110. We cut out the failed section, match the gauge and alloy (304 or 316L, verified), and splice with an overlap joint that outlasts the original.
- Gelco smooth-wall rigid liners in oil-burning setups suffer bottom-end pitting where condensation pools. The UltraPro rigid series has a known vulnerability at the first joint above the appliance connector - the male end collects sulfuric condensate and thins from the inside out. We pull the damaged lower section, inspect the remaining run with a camera, and replace only what’s eaten through. No full-system upsell.
- Gelco flexible liners in gas conversions collapse at the offset when the original masonry chimney has a sharp dogleg. The Gelco flex is quality material, but it wasn’t designed to navigate some of the 90-degree offsets we see in Shelton’s pre-war bungalows near downtown. We measure the offset with a laser, run a mandrel to confirm clearance, and upsize or switch to a DuraFlex Pro if the bend radius is too tight for Gelco’s standard flex.
- Gelco liner top plates and storm collars leak at the seal after a decade of UV and ice. The Gelco OEM silicone sealant hardens and checks; water follows the flue wall and rots the surrounding masonry. We remove the plate, reflash with copper or stainless depending on exposure, and bed the new plate in a high-temp sealant rated for 600°F continuous - not the hardware-store caulk some crews use.
- Gelco liner systems in exterior chimneys on north-facing walls lose draft because the air column stays cold. This isn’t a liner defect, but it’s a Gelco system we see often in the raised ranches off Bridgeport Avenue. We verify with a draft gauge, then install a listed insulation wrap or switch to a double-wall air-insulated liner if the flue is too tight for wrap. The fix is measured, not guessed.
Our Gelco Chimney Liner & Rebuild Process
- 1
Call and schedule. A live person answers, asks what you’re burning, how old the system is, and whether you’ve had a recent sweep. We book a Level-2 inspection with camera.
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Camera inspection and verdict. Our tech runs a 360-degree camera the full length of the flue, photographs every joint, every offset, every area of concern. You see the images on a tablet while we explain what we’re looking at. Russell’s rule: tell me what it is, fix what needs fixing, leave the rest alone.
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Parts decision. If Gelco OEM is available and cost-competitive, we quote it. If lead times stretch past burning season or the original spec is discontinued, we source quality aftermarket from our DuraFlex, HeatShield, or Olympia Chimney inventory - always listed, always warranty-safe for the application, never builder-grade.
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The repair. Background-checked, uniformed technicians complete most Gelco liner replacements and partial rebuilds in a single visit. We protect floors, contain dust, and work methodically. No shortcuts around fire safety.
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Post-repair test. We run a smoke test or draft test depending on fuel type, verify clearances to combustibles, and document the results. You get a written report with photos.
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The guarantee. Every Gelco liner & rebuild job carries our 90-Day Done Right Promise in writing - if it’s not right, we make it right, no paperwork, no arguing. That’s the Keystone Standard.
What Gelco Chimney Liner & Rebuild Costs in Shelton
| Job Type | Typical Range | What Moves the Price |
|---|---|---|
| Single-flue Gelco flexible liner replacement | $2,800-$3,800 | Flue height, number of offsets, access (roof pitch, attic tightness) |
| Multi-flue Gelco liner system | $4,200-$5,600 | Second flue, connector work, appliance changeout |
| Gelco liner repair (sectional splice, bottom replacement) | $1,400-$2,200 | Extent of damage, whether camera shows adjacent sections are sound |
| Partial chimney rebuild with Gelco liner | $3,200-$5,500 | Courses above roofline, crown condition, scaffolding needs |
| Full chimney rebuild with new Gelco liner | $8,500-$14,000 | Height, footing condition, exterior finish (brick, block, stone veneer match) |
These are Shelton-market ranges for real jobs we’ve completed, not bait-and-switch numbers. The estimate we give is the invoice you pay. Call (475) 265-6822 for an exact quote - estimates are free, and we honor our standing offers including $50 off any repair over $250 and a permanent 5% senior and veteran discount.
Why Shelton Homeowners Call Hearthstone Chimney Co. for Gelco Work
We’ve been answering the phone with a live person for over 42 years, and we plan to be here when your next question comes up. The 90-Day Done Right Promise isn’t a marketing line - it’s in writing, and we’ve honored it on jobs that cost us money because the alternative is not who we are.
Our techs know Gelco products specifically, not just “stainless liners in general.” They also carry DuraFlex, HeatShield, and Olympia Chimney inventory, so if your Gelco spec is backordered or the application calls for a different approach, we pivot without delay. Background-checked, uniformed, most jobs done in one visit. Photos you can see, a plain-English verdict. A square deal: no surprises on the bill.
FAQs
No - as an independent Gelco service provider, our listed-component repairs preserve any remaining manufacturer warranty on materials. Gelco’s warranty covers defects in the liner itself; our workmanship guarantee covers the installation. We document everything so there’s no dispute if a claim arises.
Most single-flue Gelco liner replacements in Shelton are completed in one day, start to finish. Multi-flue systems or jobs requiring masonry repair may extend to two days. We’ll tell you which yours is before we start.
We repair Gelco liners when the damage is isolated - a failed lower section, a separated joint, a damaged top plate. We replace when the camera shows multiple failure points, thinning across the run, or when the liner is the wrong spec for the current appliance. The camera decides, not the sales pitch. Call (475) 265-6822 to schedule an inspection.
We cross-reference to current Gelco stock or match spec with DuraFlex, HeatShield, or Olympia Chimney equivalents that are UL-listed for your fuel type and appliance. We don’t leave you hunting eBay for obsolete parts.
Annually for solid fuel, every two years for gas or oil - more often if you notice draft issues, staining, or odd smells. In Shelton’s climate, with freeze-thaw and coastal humidity, the liner and masonry interface needs regular eyes on it. Call (475) 265-6822 for a free estimate.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Shelton and nearby areas.