Most homeowners never think about their chimney liner until something goes wrong. Yet this hidden part of your chimney is what keeps smoke, gases, and extreme heat safely contained. When clay flue tiles crack, stainless steel liners deteriorate, or mortar starts breaking down, the risk of a chimney fire or carbon monoxide leak rises quickly.
At GMT Home Services, we’ve spent more than 12 years helping over 3,000 Connecticut families protect their homes with professional chimney liner repair and relining. From small cracks to complete liner replacement, our CSIA-certified technicians know how to keep your fireplace safe and efficient all year long.
Your chimney liner—sometimes called a flue liner—acts as the first line of defense between the intense heat, smoke, and corrosive byproducts of burning wood or using a heating appliance and the walls of your home.
Not all chimneys were built with liners. Many older chimneys, especially those with clay tile liners, require updates to meet safety standards.

The NFPA warns that most chimney fires happen when damaged flues or creosote buildup go unchecked. Before starting your fireplace this fall or winter, get your chimney inspected by a CSIA-certified sweep.
Schedule your free Level 2 inspection now and burn wood with peace of mind.

If your chimney hasn’t been inspected recently, hidden damage could already be compromising your safety. Look for warning signs like:
A damaged chimney liner left unrepaired can lead to severe structural damage and more expensive labor costs later.

At GMT Home Services, we match the repair method to your chimney’s condition. Our chimney liner repair services include:
For chimneys with a square flue or fireplaces requiring a larger stainless steel liner, we customize the fit to ensure efficiency and safety.

When snow and ice seep into tiny flue liner cracks, they expand with freezing temperatures, causing severe structural damage to chimneys.
Protect your home before the next freeze — ask GMT Home Services about chimney liner repair and relining options.

Chimney repair costs vary based on liner type, chimney size, and the extent of the damage. Factors include:
While a minor chimney liner crack repair is less expensive than replacing damaged flues, delaying service can quickly increase the total cost. In most cases, relining reduces future repair costs and helps avoid emergencies before the next fire in your fireplace.

Our team combines over 12 years of hands-on experience with the latest repair technologies to deliver proper repairs every time. With more than 3,000 Connecticut families served, we’ve built our reputation on trust, reliability, and expert craftsmanship.
Homeowners trust GMT Home Services for chimney liner repair because we provide:
We don’t just repair—we educate homeowners so their chimneys remain safe, efficient, and structurally sound for years to come.

Connecticut storms can drive water leaks into chimneys, breaking down chimney mortar and damaging clay tile liners. If you notice stains on walls or ceilings, your chimney liner may already be compromised.
Book a chimney inspection today before small cracks lead to costly repairs.

Most chimneys will eventually need some level of liner repair. If you’ve noticed cracked flue tiles, smoke leakage, or are simply concerned about fire hazards, it’s time to have your chimney inspected.GMT Home Services – Connecticut’s trusted experts in chimney liner repair, inspections, and relining. Protecting homes, one chimney at a time.
Signs include cracks in flue tiles, water leaks, crumbling chimney mortar, or smoke escaping into your home. A chimney inspection by a CSIA-certified technician can confirm if repairs are needed.
It depends on the damage. Small cracks or damaged mortar joints can often be repaired, but severe or widespread damage usually requires a new chimney liner.
Chimney liner repair costs vary based on the liner material, extent of damage, and labor costs. Minor clay tile repairs are more affordable, while installing a stainless steel liner may cost more upfront but prevents costly repairs later.
Yes. While clay flue tiles are common in most chimneys, stainless steel liners offer better durability, resist water damage, and handle high temperatures and thermal stress more effectively.
In many cases, normal wear and tear or creosote buildup isn’t covered. However, if your liner was damaged by a chimney fire or sudden event, your policy may cover the repair costs.
The National Fire Protection Association (NFPA) recommends annual chimney inspections and regular maintenance. This helps catch small cracks and prevent fire hazards before they lead to severe structural damage.
Ignoring a damaged flue liner can lead to chimney fires, carbon monoxide leaks, and structural damage to your chimney. Over time, repair costs increase significantly.
Regular maintenance is key to avoiding leaks and water damage. Schedule annual inspections, clean debris from chimney caps and step flashing, check for cracks in roofing cement or caulking, and ensure your shingles surrounding the chimney are intact. Prompt flashing repairs protect your fireplace, roof, and home structure.
EXCELLENT Based on 356 reviews Posted on Daniel JacobTrustindex verifies that the original source of the review is Google. GMT Chimney Services 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!Posted on Gary SandersonTrustindex verifies that the original source of the review is Google. Outstanding service with Joe he was very helpful and I would recommend gmt and JoePosted on Kevin HealyTrustindex verifies that the original source of the review is Google. We had Joe work on a gas fireplace in our new home. He was prompt, polite, and a pleasure to deal with. I would absolutely use this company again and felt he went above and beyond to assist usPosted on josh aTrustindex verifies that the original source of the review is Google. 3.5 stars Not the worst not the best experience.. the guys that came and did inspection were great and knowledgeable, the guys that came and did the liner were also great.. Juan that came to check out my fireplace and put on the caps was excellent.. the guys that came and did the pointing, and outside work did ok work but didnt communicate with us... never rang doorbells or gave us calls, not good communication.... this comapny expect you to be home almost at all times says they will work with you in times so, scheduled a day to come work and needed someone to be home wife took day off and they tried to tell us no one was home didn't even knock or ring door bell... just left tried to tell us no one was home and that they rang door bell and knocked.. we have cameras and ring door bell and wife took day off.. one week goes by no calls nothing gave us 30 min notice called abut 9a.m to show up around 930... again the workers were all pretty good but the communication between them the lady in the office and home owners should be better.. she Called and asked for payment job wasn't complete.. caps were not install.. Juan came out again was great did what he had to do and bill was paid.. I'd love to use them again for a cleaning because the work was ok and some of the guys doing the work. But they need to realize that people work for a living and cant be home at all times and some of the workers and the office need to be able to communicate with the home owners and possibly each other a bit better.. the pricing was average better then some others and work was overall ok.. if your someone that can be home often this company will be perfect for youPosted on MariaTrustindex verifies that the original source of the review is Google. Joe was fantastic and very quick! Looking forward to using this service again!Posted on Toby CarotenutoTrustindex verifies that the original source of the review is Google. Very good service, installed a liner in a few hours. Very professional. Would use again!Posted on saikiran sikaTrustindex verifies that the original source of the review is Google. Nice workPosted on Ravi GopieTrustindex verifies that the original source of the review is Google. Joe came to check my fireplace since I wanted to make sure I was good for the season before lighting it. He did a wonderful job of explaining that the fireplace was safe to use this year and advised me of when to contact them for a cleaning. He checked the firebox, and explained what was happening in the flue. I will certainly be calling GMT again for my future cleanings because of this interaction. Joe was friendly and warm, and did a great job explaining how to use the fireplace.Posted on אילן חרוביTrustindex verifies that the original source of the review is Google. Great service! Joe is a real professional. Very thorough and with a lot of patience. Recommend with all my heartPosted on Krushna PatiTrustindex verifies that the original source of the review is Google. I would highly recommend GMT services. Joe is not only very professional and knowledgeable as well as respectful of time. The fact he got the job done within minutes shows how experienced he is.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more