Chimney Installation Services in Connecticut
Whether you need a single chimney cap secured before the next windstorm or a full wood stove and liner setup put in from scratch, the install is the part that decides whether your chimney works for 5 years or 25. We see the difference every week — usually on jobs we’re called in to redo.
We’re GMT Chimney Sweep Services. We’ll measure, recommend the right materials for your specific setup, pull the permits, and give you a written estimate before we touch anything. No upselling you into a fancier system than the job calls for.
Why Chimney Installation Isn't a DIY Job
Here’s the honest truth. We see a lot of “before” pictures from homeowners who tried to install a chimney cap themselves, or had a handyman put in a liner that wasn’t sized right, or bought a wood stove off the internet and rigged the venting. Most of the time, what we’re called in to fix costs more than it would have to do it correctly the first time.
Chimney installation is one of those jobs where the part you can see is maybe 20% of what matters. The other 80% — clearances, sizing, code compliance, draft, sealing — is invisible until something goes wrong.
What goes wrong when chimney installs are done poorly
- Wrong-sized liners. A liner that’s too big draws poorly and lets condensation form. A liner that’s too small creates dangerous backdrafts. Sizing it right takes a measurement, not a guess.
- Caps that blow off. Connecticut wind isn’t kind to undersized or improperly secured caps. We replace blown-off caps almost every winter.
- Wood stoves vented into existing chimneys that can’t handle them. Old masonry flues weren’t built for modern high-efficiency stoves. Without the right liner, you’ve got a fire risk and a draft problem.
- Bad flashing. Done wrong, it leaks. Done right, it’s invisible for 30 years.
- Carbon monoxide issues. Gas appliances especially — install the venting wrong and CO comes back into the house.
- Insurance and code problems. Most CT towns require permits and inspections for new chimney work. Skip them, and you’ve got problems at sale or claim time.
A good install is one you forget about, because nothing ever goes wrong.
How We Do Chimney Installation in Connecticut
GMT is a Connecticut chimney company, run by people who live here. Same winters, same wood stoves, same old houses you do. We do chimney installs the way we’d want one done at our own house — the right size, the right materials, the right way the first time.
When you call us for a chimney installation — whether it’s a cap, a liner, a stove, or a full new chimney — we start with a real look at what you have, what you need, and what makes sense for your budget. Then we give you a written estimate before any work starts. No “while we’re up there” surprises, no upselling you into something fancier than the job calls for.
If a basic chimney cap installation is what you actually need, that’s what we’ll quote. If you’re being told you need a full liner replacement when a repair would do, we’ll tell you that too. That’s how we’d want to be treated.
Every Chimney Installation Service We Offer
Most homeowners searching “chimney installation near me” don’t actually need a whole new chimney — they need a specific part installed or replaced. Here’s the full list of what we install across Connecticut.
Chimney Cap Installation
The cheapest piece of your chimney, and the one that prevents the most damage. A proper chimney cap keeps water, animals, and debris out of your flue — and the difference between a $40 hardware-store cap and a properly-fitted, properly-secured one is the difference between five years of trouble and twenty years of peace.
We install single-flue caps, multi-flue caps, custom stainless and copper caps, and full chimney covers. If you’ve been searching “chimney cap installers near me” or “who installs chimney caps,” that’s us. We’re chimney cap installers across all of Connecticut, and most jobs we can finish in a single visit.
Typical chimney cap installation cost in CT: $200 to $800 depending on size, material, and whether we’re replacing one cap or capping multiple flues.
Chimney Rain Cap Installation
Same idea as a standard cap, designed specifically to keep rain and snow out of the flue. Critical in Connecticut where freeze-thaw cycles will quietly destroy any chimney that’s letting water in. If your existing rain cap is rusted, dented, or missing, we can replace it.
Chimney Liner Installation
This is the big one, and it’s the install that gets done wrong most often.
A chimney liner is the inside of your flue — the part that actually contains heat, smoke, and gases as they vent up and out. Liners deteriorate over time. They crack from heat. They corrode from acidic gas exhaust. And once they’re compromised, you’ve got a fire risk, a CO risk, and a chimney that doesn’t draft right.
We’re chimney liner installers across Connecticut, and we install:
- Stainless steel liners — the most common choice. Corrosion-resistant, durable, code-compliant for wood, pellet, gas, and oil. UL 1777 listed.
- Aluminum liners — cost-effective for certain gas appliance setups. Not suitable for wood.
- Clay tile liners — traditional, affordable, but harder to install retrofit. Mostly used in new construction.
- Cast-in-place liners — premium option that creates a smooth, seamless flue. Best for badly damaged chimneys where a traditional liner won’t work.
If you’ve been searching “chimney liner installation near me,” or “chimney lining installers” — we cover the whole state.
Typical chimney liner installation cost in CT: $1,500 to $5,000. Stainless steel for an average single-flue retrofit usually lands around $2,500. We’ll give you the exact number after we measure.
Wood Stove and Chimney Installation
If you’re putting in a new wood-burning stove or replacing an old one, the chimney side of the install matters as much as the stove itself. We handle the full job — the stove, the connector pipe, the liner if needed, the cap, and the permits.
Federal tax credit: Right now there’s a 30% federal tax credit (up to $2,000) on qualifying wood and pellet stove installations. If we’re installing a stove that qualifies, we’ll tell you and give you the paperwork you need to claim it.
We’re chimney installers for wood stove setups across Connecticut — wood burning stove chimney installation, pellet stoves, inserts, free-standing units. If you’ve got a stove, we’ll install the chimney to make it work safely.
Chimney Insert Installation
Converting a drafty open fireplace into an efficient, sealed system with an insert is one of the best upgrades you can make to a Connecticut home. We do chimney insert installation for both wood and gas inserts, including the venting, liner, and connection work that makes the whole system run right.
Gas Chimney Installation
Gas appliances vent differently than wood. The exhaust is acidic and damages unprotected flues fast — which is why most gas appliances need a properly sized stainless or aluminum liner, not just the existing masonry chimney.
We do gas chimney installation across CT — new gas fireplace systems, direct-vent setups, gas stove venting, and conversion work when you’re switching from oil or wood to gas. The install has to meet code, vent safely, and pass inspection. We handle all of it.
Fireplace Chimney Installation
For new construction, additions, or full chimney replacements, we build complete fireplace and chimney systems — masonry chimney installation, pre-fab metal chimneys, full venting systems for traditional open hearths or sealed fireplaces.
Masonry Chimney Installation
A full masonry chimney — brick, block, or stone — built from the foundation up. This is the heaviest install we do, and the most permanent. Done right, a masonry chimney lasts a hundred years.
Metal / Pre-Fab Chimney Installation
For homes without an existing masonry chimney, or for additions where building masonry doesn’t make sense, we install pre-fabricated metal chimney systems. We’re metal chimney installers across Connecticut — Class A insulated stainless, double-wall, triple-wall — whatever your appliance and clearances require.
Chimney Pipe Installation
Chimney pipe — the connector pipe between an appliance and the chimney itself — has to be the right diameter, the right material, and the right clearance from combustibles. We install it as part of stove and fireplace installs, or as a standalone repair when existing pipe has corroded or pulled away.
Chimney Flashing Installation
Flashing is what seals the chimney to the roof. Done wrong, it leaks — and chimney leaks are some of the most expensive interior damage we see in CT homes. We install proper step flashing and counter flashing when chimneys are new, when roofs are replaced, or when existing flashing has failed.
Typical chimney flashing installation cost in CT: $300 to $1,000 depending on chimney size, roof pitch, and whether we’re sealing around an existing chimney or installing on a new one.
Chimney Fan Installation
For chimneys with persistent draft problems — usually older homes, tall buildings, or specific architectural quirks — a chimney fan can solve what no amount of cleaning or lining will. We install draft-inducing chimney fans when the situation calls for it, though most homes don’t need one. We’ll tell you honestly if you do or don’t.
Why Connecticut Homeowners Trust Us With Installations
You’re letting somebody build a permanent piece of your house. We get that, and we don’t take it lightly.
- Free written estimates. No obligation, no pressure, no upsell.
- Certified and fully insured. Every installer is trained, background-checked, and properly covered.
- 200+ verified five-star Google reviews. Real Connecticut homeowners, real names. Read them.
- Code-compliant, permitted work. We pull the permits, we pass the inspections, and we leave you with paperwork your insurance carrier and future buyer will want to see.
- Honest sizing and material recommendations. If a stainless liner is overkill for your setup, we’ll tell you. If clay tile is the wrong choice, we’ll tell you that too.
- Tax credit guidance. If you’re installing a qualifying wood or pellet stove, we’ll help you with the 30% federal tax credit paperwork.
- We live here. Connecticut neighbors, Connecticut winters, Connecticut homes. If we mess up, we hear about it at the grocery store.
“GMT did an outstanding job installing a new liner in my chimney. Their price was nearly half of what other companies quoted, and the work was excellent. My chimney wasn’t drafting correctly, which caused my water heater to break. After the liner was installed, the issue was completely resolved. Highly recommend for their fantastic work!” — Verified Google review
What Chimney Installation Costs in Connecticut
Honest answer: it depends on what you’re installing. Here’s the rough range homeowners pay in CT, based on what we see and what the industry data shows.
Installation | Typical CT Cost Range |
|---|---|
Chimney cap installation | $200 – $800 |
Chimney rain cap installation | $200 – $600 |
Chimney liner installation (stainless) | $1,500 – $5,000 |
Chimney liner installation (cast-in-place) | $5,000 – $7,000 |
Wood stove + chimney install | $2,000 – $8,000+ |
Chimney insert installation | $2,500 – $6,000 |
Gas chimney installation | $1,500 – $4,500 |
Chimney flashing installation | $300 – $1,000 |
Full masonry chimney build | $5,000 – $15,000+ |
Pre-fab metal chimney install | $2,500 – $7,000 |
Chimney fan installation | $1,200 – $3,000 |
These are ballpark numbers. The actual quote depends on the size of your chimney, the height, the materials you choose, and what (if anything) needs to come out before the new install goes in. We’ll measure, look it over, and give you a real written estimate before any work starts. That part is free.
Looking for Chimney Installers Near Me? We're All Over Connecticut.
We serve homeowners across the state — Hartford, New Haven, Bridgeport, Stamford, Waterbury, Norwalk, Danbury, New Britain, West Hartford, Greenwich, Fairfield, Manchester, Meriden, Bristol, Milford, and pretty much everywhere in between.
If you’ve been searching “chimney cap installation near me,” or “wood stove chimney installation near me” — give us a call. Odds are we’re in your area this week.
What Our Connecticut Neighbors Are Saying
Pull 4–6 of the strongest verified Google reviews — prioritize ones that mention installation work (liners, caps, wood stoves) over general cleaning reviews. Star rating, reviewer name, date in card format
What a GMT Installation Actually Looks Like
Six steps, every job. Nothing fancy — just done right.
We come look first.
Free estimate, no obligation. We measure, we check what you have, and we tell you what the job actually requires. Sometimes the answer is “you don’t need a full install, just a repair.”
We give you a written estimate
Materials, labor, permits, timeline. You’ll know what it costs before we start.
We pull the permits.
Most chimney installation work in CT requires a permit. We handle the paperwork and the town inspection.
We install it right.
Proper sizing, proper sealing, proper code compliance. We use materials that meet UL standards and we don’t cut corners on the parts you can’t see.
We test the system
Draft test, smoke test, CO check where appropriate. The install isn’t done until it’s working the way it should.
We clean up and walk you through it.
Drop cloths come off, debris goes with us, and we show you what was done and how to maintain it
Questions Connecticut Homeowners Ask About Chimney Installation
How long does a chimney installation take?
Depends entirely on what’s being installed. A chimney cap install is usually 1–2 hours. A liner installation runs 4–8 hours, sometimes a full day for a tricky setup. A full wood stove and chimney install typically takes 1–2 days. A masonry chimney build can take a week or more. We’ll tell you the realistic timeline when we estimate.
Do I need a permit for chimney installation in Connecticut?
For most installation work, yes. New chimneys, liner replacements, wood stove installs, and pre-fab chimney systems all typically require a town permit and inspection. We pull the permit and handle the inspection — it’s part of the job, not an add-on.
What's the best chimney liner material?
For most Connecticut homes, stainless steel is the right answer — it’s durable, code-compliant for almost any fuel type, and lasts 15–25 years with normal use. Aluminum is cheaper but only works for certain gas applications. Cast-in-place is excellent for badly damaged chimneys but expensive. Clay tile is mostly for new construction. We’ll recommend what fits your specific setup.
Can I install a chimney cap myself?
You can, but in our honest opinion, you probably shouldn’t. The cheap caps from a hardware store are often the wrong size, and improperly secured caps blow off in CT wind. Plus, most chimney work that involves the roof has a real fall risk. A proper professional chimney cap install from us runs $200–$800, and it’s done right the first time.
How much does a chimney liner installation cost in Connecticut?
Most CT homeowners pay between $1,500 and $5,000 for a stainless steel liner installation. The exact number depends on chimney height, flue size, what fuel you’re venting, and whether we have to remove an old liner first. We’ll give you a written quote during the free estimate.
Do you do gas chimney installation?
Yes. Gas chimney installation is one of our specialties — new gas fireplace systems, direct-vent setups, conversions from oil or wood to gas. Gas exhaust is acidic and needs the right liner; we know what works.
Can you install a wood stove and the chimney for it?
Yes. We’re chimney installers for wood stove setups — we do the stove, the connector pipe, the liner, the cap, and the permits. If your stove qualifies for the 30% federal tax credit, we’ll help you with that paperwork too.
Do you install chimney inserts?
Yes. Chimney insert installation — wood, gas, or pellet — including the liner and venting. Inserts are one of the best efficiency upgrades you can make to an old open fireplace.
How much does chimney flashing installation cost?
Most chimney flashing installations in CT run $300 to $1,000, depending on chimney size, roof pitch, and whether we’re flashing a brand-new chimney or replacing failed flashing on an existing one.
Are you licensed and insured?
Fully. GMT Chimney Sweep Services is a certified, licensed, and insured Connecticut chimney installation company. Happy to send proof if you want to see it.
Do you offer financing for chimney installation?
For larger jobs — full chimney builds, complete wood stove systems, multi-thousand-dollar liner replacements — we can talk about financing options when we estimate. Just ask.
Let's Get You a Real Estimate
Chimney installation is one of those jobs where doing it right the first time costs about half what doing it twice costs. The hard part is knowing what “right” actually looks like before the work starts — which is exactly what a free estimate is for.
Whether you’re putting in a new cap, a liner, a wood stove, or a full system, we’ll measure, talk through your options honestly, and put it all in writing before you commit to anything.
Call (860) 891-2757 and you’ll get a real person on the phone. Or fill out the form below and we’ll get back to you the same day.