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 Huntington: What to Know First
We provide independent Gelco chimney repair in Huntington, with most jobs completed in a single visit and upfront pricing that matches the final invoice. Typical turnaround from call to repair is three to five business days during peak season, faster for active leaks or structural concerns. We’re not the cheapest outfit in Suffolk County, and we don’t try to be - we price the work so we can use proper materials and come back if something isn’t right.
This page is for Huntington homeowners who already know they have Gelco components in their chimney system - perhaps a Gelco stainless liner, cap, or damper installed years ago - and need straight talk about what’s failing, what it costs to fix, and whether the repair is worth doing. If you’re on West Neck Road, in Southdown, or near Huntington Harbor with a Gelco product showing wear, call (631) 776-4075. We’ll send a technician with Gelco experience, not a trainee figuring it out as he goes.
How Gelco Products Fail - and How We Fix Them
- Gelco UltraPro stainless liners develop pinhole corrosion at the flex joints after fifteen to twenty years, especially in Huntington homes where salt air from the Sound accelerates metal fatigue. The homeowner smells smoke or sees staining at the thimble. We cut back to sound metal, install a new Gelco or DuraFlex section with proper overlap, and pressure-test before we leave.
- Gelco ProChimney caps - the galvanized models in particular - lose their mesh screening to rust at the weld points. Squirrels get in, or rainwater does. We stock the stainless Gelco replacement caps, but we’ll also show you the Famco and Copperfield equivalents if the budget’s tight. The mounting flange on Gelco caps is slightly narrower than Olympia’s, so the base course needs rebedding or you’ll get a gap.
- Gelco top-sealing dampers suffer cable fray where the control line exits the firebox through a sharp-edged thimble. The damper won’t open fully, or the handle spins free. We replace the cable assembly with OEM Gelco parts - the aftermarket cables are cheaper but the ferrule size is wrong and they slip within a season. Russell Haines learned this the hard way on a job in Cold Spring Harbor years back.
- Gelco chimney crown sealant applications crack at the flue interface because the original installer skimped on expansion joint material. Water gets behind the sealant, freezes, and pops it off in sheets. We grind to bare concrete, install a proper bond break, and resurface with HeatShield CrownCoat or pour a new cast-in-place crown if the structural integrity is gone.
- Gelco smoke chamber parging - where a previous contractor used Gelco’s refractory mix - sometimes delaminates from oil-soaked brick in older Huntington fireplaces. The surface looks intact until you probe it. We remove the failed parge, treat the substrate with a bonding agent, and reapply with HeatShield Cerfractory Foam for a smoother, more durable surface that draws properly.
Our Gelco Chimney Repair Process
- 1
Call and schedule. A live person answers, 24 hours a day. We ask about the symptoms, the age of the Gelco installation if you know it, and whether you’re seeing water, smoke, or draft problems. We book a two-hour arrival window.
- 2
Level-2 camera inspection. Our technician runs a camera the full length of the flue, photographs every Gelco component, and explains what he’s seeing in plain English. You see the images on a tablet. No verdict is given without evidence you can see yourself.
- 3
Parts decision. If Gelco OEM is available and cost-effective, we quote it. If lead times are long or the part is obsolete, we propose quality aftermarket from DuraFlex, HeatShield, or Famco - never builder-grade substitutes - and explain the trade-off.
- 4
The repair. Background-checked, uniformed technicians complete most Gelco repairs in a single visit. We protect your floors, work methodically, and don’t leave until the system is tested and drawing properly.
- 5
Documentation and guarantee. You get photos, a written summary, and the 90-Day Done Right Promise in writing. If it’s not right, we come back. No paperwork to find, no arguing.
- 6
Cleanup and close. We haul away debris, run a final draw test, and review the invoice with you before you pay. The number on the estimate is the number on the invoice.
What Gelco Chimney Repair Costs in Huntington
These are real ranges for Gelco-specific work we’ve done in Huntington, not bait-and-switch estimates that balloon on site:
- Gelco cap replacement (stainless): $340-$520
- Gelco liner section repair / flex joint replacement: $680-$1,400
- Gelco top-sealing damper cable replacement: $280-$450
- Crown resurfacing over Gelco sealant removal: $720-$1,100
- Smoke chamber parging (HeatShield Cerfractory): $1,200-$1,800
- Full chimney rebuild with Gelco liner replacement: $4,500-$7,200
What moves the price: accessibility (steep roof, tight chase), extent of hidden damage found during inspection, and whether Gelco OEM parts are still in production for your series. We don’t recommend work without camera evidence, and we’ll tell you plainly when something can wait. Call (631) 776-4075 for an exact quote - estimates are free.
Why Huntington 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 in thirty more. That changes how you treat a customer - you don’t burn a relationship for one job.
Our technicians know Gelco’s product evolution: which series used galvanized before stainless, which dampers have the narrow mounting flange, where the factory welds tend to crack. When Gelco parts are back-ordered, we have relationships with DuraFlex, HeatShield, and Famco to keep your job moving. The 90-Day Done Right Promise means if we miss something, we make it right in writing, no arguing. A clean chimney isn’t a luxury - it’s just the job done right.
FAQs
No - Gelco’s warranty on materials expired years ago for most Huntington installations, and using an independent service provider like us does not affect any remaining coverage on recently installed components. We document our work with photos in case you ever need to file a claim. Call (631) 776-4075 if you’d like us to review your paperwork.
Yes, for most series, though some galvanized caps and early damper assemblies are obsolete. We stock common Gelco stainless caps and cables, and when OEM is unavailable we use quality aftermarket from DuraFlex, HeatShield, or Famco that meets or exceeds original specifications. We’ll tell you before we order if there’s a lead time.
Replacement is only necessary when the structural shell is compromised - spalled brick through multiple wythes, shifted foundation, or liner failure combined with inaccessible flue damage. Most Gelco issues we see in Huntington are localized: a failed cap, a cracked crown, a corroded liner section. The camera inspection shows you exactly which category you’re in. Call (631) 776-4075 for a free evaluation.
Active water intrusion gets priority scheduling, typically within two to three business days. We carry temporary flashing sealant and cap covers to stop damage until permanent repair, and we complete most Gelco repairs in a single visit once parts are confirmed. Seasonal demand peaks in October, so September scheduling is smartest if you’re not actively leaking.
There is no Gelco-authorized dealer network for chimney repair - Gelco manufactures components, not a service program. As an independent Gelco service provider, we’re free to recommend the best solution for your chimney, not just the Gelco catalog. That might mean a HeatShield crown repair where Gelco only offers sealant, or a DuraFlex liner section that outlasts the original. Our loyalty is to the repair done right, not to a parts contract.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Huntington and nearby areas.




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