Gelco Chimney Liner & Rebuild Nationwide

Gelco Chimney Liner & Rebuild in Greenwich: What to Know First

We provide independent Gelco chimney liner installation, replacement, and partial or full rebuilds throughout Greenwich, CT. Most Gelco liner jobs in Greenwich take one to two days on site, depending on whether we’re sleeving an existing flue or rebuilding masonry around it. A stainless steel Gelco liner replacement in this area typically runs $2,600 to $5,200, and a partial rebuild adds $1,400 to $3,800 depending on how much brick and crown work the chimney needs.

Call (516) 399-5497

This page is for Greenwich homeowners who already have a Gelco liner or firebox system and want straight answers about repair versus replacement. If you’re looking at a flue that’s delaminating, a liner that’s rusted through, or masonry that’s spalled past the point of patching, call (516) 399-5497 and we’ll put a camera down it before we quote anything.

How Gelco Products Fail - and How We Fix Them

Gelco makes a range of stainless steel chimney liners, and we see a few failure patterns repeat across Greenwich homes. These are the ones that send owners to us most often:

• Gelco 316Ti flexible liner with pinhole corrosion at the connector band. This happens when a liner was installed without a proper top plate or when the connector wasn’t sealed against flue-gas condensation. In Greenwich, where shoulder-season fires burn low and cool, condensation sits on the liner wall longer than it does in colder climates. The fix is a new liner section with a properly fitted connector and a top plate that actually drains.
• Gelco rigid liner sections that have separated at a seam. Rigid liners are fine products, but they don’t forgive a settling chimney. Greenwich has its share of older homes on clay-heavy soil, and when a chimney settles a quarter inch, a rigid liner joint can open. We find this with a camera, then decide whether to re-secure the section or replace it with a flexible liner that tolerates movement.
• Gelco firebox panels cracked from thermal shock. This is common when owners convert a wood-burning fireplace to gas logs and the firebox wasn’t rated for the conversion. The panel cracks, and the crack becomes a path for heat to reach framing. We replace the panels with the correct refractory material and verify clearance before we finish.
• Flue tile behind a Gelco liner that’s spalling and pushing against the liner wall. The liner does its job, but the original clay tile behind it is failing. This shows up as a bulge in the liner seen on camera, or as a liner that’s getting harder to sweep. The correct fix is a partial rebuild of the flue with the liner reset, not just a sweep-and-go.
• Gelco liner installed undersized for the appliance. We see this more than we’d like: a liner sized for a small wood stove, then the homeowner upgrades to a larger insert and the liner can’t move the volume of exhaust. That creates backdrafting and a creosote problem that no sweep will solve. We verify liner diameter against the appliance specs and replace with the right size.

Our Gelco Chimney Liner & Rebuild Process

1. 1
   The call. You tell us what you’re seeing: flue gas in the house, a rust stain on the wall, a liner that’s visibly sagging. We schedule a diagnostic visit and give you a two-hour arrival window with a text when the tech is on the way.
2. 2
   The camera scan. We run a camera down the flue and record everything. You see the footage with us, in real time. No description, no interpretation. You see the crack, the gap, the rust.
3. 3
   The written scope. Based on what the camera shows, we write a scope that says exactly what we’ll do, what parts we’ll use, and what it costs. If a Gelco OEM part is the right call for warranty continuity, we use it. If a DuraFlex or HeatShield component matches or exceeds spec at a better price, we tell you that and let you decide. Written price before anyone touches a brush.
4. 4
   The work. Liner removal, flue prep, new liner installation, any masonry rebuild that’s needed, crown repair or replacement, cap if needed. Our techs are background-checked and uniformed. They lay drop cloths and clean the work area before they leave.
5. 5
   The documented record. When we’re done, we run the camera again. You get before and after photos, the written scope, the written warranty, and the invoice. That record is Clause 4 of the Haven Standard, and we’ve kept it on every job since 2009.
6. 6
   The follow-up. If anything isn’t right within 365 days, we come back and make it right. That’s not a phrase. It’s stamped on the paperwork.

Before

After

What Gelco Chimney Liner & Rebuild Costs in Greenwich

Here’s what we charge in Greenwich, in writing, before we start:

• Gelco flexible stainless liner replacement, single flue: $2,600 to $4,100
• Gelco liner replacement with partial rebuild (top 8 to 12 courses, crown, cap): $4,200 to $6,800
• Full chimney rebuild with new Gelco liner: $8,500 to $14,500 depending on height, access, and brick match
• Firebox panel replacement (Gelco-compatible refractory): $900 to $2,200
• Chimney crown replacement with liner reset: $1,600 to $2,800

What moves the price: chimney height, whether we need a lift or staging, how much masonry has to come apart, and whether we’re matching historic brick (Greenwich has plenty of that). If you bring us a written estimate from another company, we’ll give you a free second opinion on it. Call (516) 399-5497 for a written quote before you decide anything.

Why Greenwich Homeowners Call Level Two Chimney Greenwich for Gelco Work

Corrine Halstead, our owner, started documenting cracked smoke-chamber photos years ago and still keeps the first one taped inside her truck’s glove box. That habit is why we show you the camera footage instead of describing it. The camera doesn’t guess. Neither do we.

We’ve inspected and cleaned more than 38,000 chimneys since 2009, and every one has a written price before work starts and a documented record when it’s done. We answer the phone 24/7, and the person who answers is a person. For Gelco work specifically, our techs know the liner family well enough to spot a seam separation or a condensation problem before they pull the old liner out. And when a Gelco OEM part isn’t the smartest choice, we’re honest about it. We work with DuraFlex and HeatShield materials too, and we’ll tell you which one fits your chimney and your budget without a loyalty pitch.

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