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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AfterGelco Chimney Liner & Rebuild in Staten Island: What to Know First
We provide independent Gelco chimney liner and rebuild service throughout Staten Island, with most Gelco liner replacements and partial rebuilds completed in a single visit after our Level-2 camera inspection. As an independent Gelco service provider, we stock OEM-compatible Gelco parts and carry DuraFlex and HeatShield alternatives when a retrofit makes more sense than factory-matching. Our no-hassle upfront pricing means the estimate we give is the invoice you pay. If you own a Gelco liner system in a Staten Island home built before 1990, or you’re seeing rust flakes in the firebox or draft problems that started after last winter’s freeze-thaw cycles, this page is for you. Call (516) 613-3035 - a live person answers, 24 hours a day.
How Gelco Products Fail - and How We Fix Them
- Gelco Stainless Pro Series: weld-seam corrosion at the flex connector. We’ve pulled dozens of these in Staten Island’s salt-air neighborhoods like Tottenville and Great Kills. The marine air accelerates pinhole formation where the flex meets the rigid tee, usually at the 12-to-15-year mark. We cut back to sound metal, fit a DuraFlex or OEM Gelco replacement section, and pressure-test before we leave.
- Gelco Pre-Fab Metal Chimney Systems: chase pan failure letting water track down the annular space. The galvanized chase pans on older Gelco pre-fab installs weren’t designed for Staten Island’s driving nor’easter rains. Water hits the compromised pan, runs between the metal shell and the liner, and rots the wood chase from the inside. We replace with a copper or stainless Gelco-compatible pan, seal with high-temp silicone rated for freeze-thaw, and run a camera to confirm the liner itself survived.
- Gelco Flexible Liner (older 316Ti alloy): creosote glazing in offset flues. The 316Ti flex handles straight runs well, but in Staten Island’s Victorian-era homes with offset flues in neighborhoods like St. George, the corrugations trap glazed creosote where the offset kinks. That glazing insulates the liner, overheats the surrounding masonry, and spalls the brick. We remove the flex, rotary-deglaze the offset, and often upsize to a smoother-wall HeatShield cerfractory sleeve or a DuraFlex Pro liner with tighter corrugation profile.
- Gelco Thimble and Connector Plates: thermal fatigue cracking at the appliance adapter. These cast-iron or steel plates take the worst thermal cycling, especially on wood-burning inserts in Staten Island’s older bungalows. The crack is usually hairline and hidden behind the surround. We find it with the camera, pull the plate, and source either a Gelco OEM replacement or a machined aftermarket equivalent - whichever gets you a proper seal without a six-week backorder.
- Gelco Full-Wrap Insulation: compression and settlement in tall exterior chimneys. The wrap-and-mesh insulation system settles in exterior chimneys over 25 feet, creating a cold spot at the top third that condenses flue gases into acid. We see this on the two-story colonials in New Dorp and Oakwood. We strip the old wrap, re-insulate with fresh Gelco-compatible mesh-and-blanket or switch to a factory-insulated DuraFlex Pro if the liner itself is thinning, then re-certify the system to NFPA 211.
Our Gelco Chimney Liner & Rebuild Process
- 1
Call and schedule. A live person answers, day or night. We book your Level-2 inspection, usually within a few days during sweep season.
- 2
Camera inspection and photo report. Our tech runs a 360-degree camera the full length of your Gelco system. You see the footage. We mark timestamps for any breach, thinning, or joint separation, and give you a plain-English verdict - no jargon, no theater. If the chimney’s sound, I’ll say so. If it isn’t, you’ll hear that too.
- 3
Parts decision: OEM Gelco, DuraFlex, or HeatShield. We check Gelco lead times (sometimes 3-4 weeks for specialty tees) and quote both OEM and quality aftermarket options. You choose. No pressure either way.
- 4
The repair. Background-checked, uniformed techs complete most Gelco liner replacements and partial rebuilds in one visit. We protect your floors, use proper drop cloths, and work methodically - the way a liner install should be done.
- 5
Pressure test and documentation. Every Gelco liner job gets a smoke or air-pressure test to confirm draft and seal. We photo-document the finished work and email you the report.
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The 90-Day Done Right Promise. In writing, no arguing. If something isn’t right, we come back. That’s the Keystone Standard we’ve operated under since 1984.
What Gelco Chimney Liner & Rebuild Costs in Staten Island
Pricing depends on access, height, and whether we’re matching Gelco OEM or retrofitting with DuraFlex or HeatShield. Here’s what we typically see in Staten Island homes:
| Service | Typical Range |
|---|---|
| Gelco stainless liner replacement (straight flue, single story) | $2,800 - $4,200 |
| Gelco liner replacement with offset flue or two-story height | $4,000 - $6,500 |
| Gelco chase pan replacement with liner inspection | $1,400 - $2,600 |
| Partial chimney rebuild (above roofline) with Gelco liner reline | $5,500 - $9,000 |
| Gelco thimble/connector plate replacement | $380 - $720 |
| Level-2 camera inspection with written report | $289 - $350 |
What moves the price: scaffolding requirements on tall exterior chimneys, terra cotta flue removal when the existing liner is mortared in, and emergency scheduling during peak burning season. We give you the full number before we start - no surprises on the bill. Call (516) 613-3035 for a free estimate.
Why Staten Island Homeowners Call Hearthstone Chimney Co. for Gelco Work
We’ve been answering the phone with a live person for over 42 years, and we’ve been servicing Staten Island homes - including those older masonry fireboxes in Tottenville that have seen generations of hard winters - for well over a decade. Russell Haines and our crew know Gelco systems specifically: the part numbers that cross-reference, the lead times to plan around, and the failure patterns that show up in salt-air climates. Our 90-Day Done Right Promise is in writing with no arguing. Our Level-2 inspections end with photos you can see and a plain-English verdict. And because we also work with DuraFlex and HeatShield, we’re not locked into one manufacturer’s timeline when you need heat working before the next cold snap. Done right - and we stand behind it.
FAQs
No, a proper rebuild done by a qualified technician does not void the Gelco liner warranty, provided the liner is reinstalled to Gelco’s clearance and support specifications. We document every step with photos so you have a record if a warranty question ever arises. Call (516) 613-3035 if you need us to review your existing Gelco warranty paperwork.
Common Gelco tees, connectors, and flex sections usually arrive within 5-7 business days; specialty or discontinued items can stretch to 3-4 weeks. We keep DuraFlex and HeatShield equivalents in stock for situations where you can’t wait. We’ll tell you both timelines upfront so you can decide.
A Gelco liner can often be repaired if the damage is localized - a cracked thimble, a separated joint, or a small breach at the flex connector. If we find thinning across multiple sections, weld-seam corrosion, or insulation saturation, replacement is the honest call. We show you the camera footage and explain which category you’re in.
NFPA 211 calls for annual inspection of any chimney system, and we agree - especially in Staten Island, where salt air, freeze-thaw cycles, and older masonry accelerate wear. Gelco stainless liners in coastal neighborhoods like Tottenville and Great Kills often show corrosion 20-30% earlier than inland installs. A yearly Level-2 camera inspection catches it before it becomes a rebuild.
A compromised Gelco liner lets exhaust gases, including carbon monoxide, leak into wall cavities or living spaces, and it exposes surrounding masonry to acidic condensation that spalls brick and rots framing. In wood-burning systems, a breached liner also raises chimney fire risk by allowing creosote to accumulate in the chase. We don’t use scare tactics - we’ll show you exactly what the camera sees and tell you whether the repair is urgent or can wait until next season. Call (516) 613-3035 for a free estimate and honest timeline.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Staten Island and nearby areas.