Chimney & Fireplace Services in New London, CT — Steady, Skilled Care for Safety
Chimney Inspection
“How do I know if my chimney actually needs a checkup?”
Homeowners often wonder this when everything seems fine. The truth is, many chimney problems hide where you can’t see them—like minor creosote buildup, small liner gaps, or moisture starting to seep into the crown.
During an inspection, we check the flue, liner, smoke chamber, crown, masonry joints, flashing, and damper operation. This full approach ensures nothing is overlooked.
Earlier this year, a chimney looked perfect from the living room, but inside, the liner had begun separating. Catching it early meant a simple repair instead of a major rebuild.
Upshot: Understanding what’s happening inside your chimney is the most reliable way to prevent hidden issues.
Chimney Repair
Are Tiny Cracks Really Something to Worry About?
Small cracks often look harmless at first. But even narrow openings can allow heat, smoke, and moisture to travel where they shouldn’t. Over time, seasonal temperature swings and repeated exposure to water can widen those cracks, slowly weakening the chimney’s structure from the inside out.
In the Montville Street area, we addressed minor liner cracks and repointed aging mortar before moisture had a chance to spread. Installing a new crown and cap sealed the system and helped protect it from future exposure.
Upshot: Catching cracks early keeps routine repairs from turning into structural concerns.
Chimney Cleaning
If I Barely Use My Fireplace, Is Cleaning Still Necessary?
Even light fireplace use creates creosote. Add moisture, debris, or nesting material, and airflow can become restricted without any obvious warning. That’s often when homeowners start noticing odors, smoke backing into the room, or uneven burns.
Near Hempstead Street, we cleaned a chimney in a historic home that hadn’t been serviced in years. Thick creosote buildup inside the flue was limiting draft. After cleaning, airflow improved, the fireplace burned cleaner, and the homeowner felt comfortable using it again.
Upshot: Regular cleaning keeps your chimney operating safely, even if it’s only used occasionally.
Chimney Maintenance
What Does Regular Chimney Maintenance Actually Do?
Maintenance is about prevention. It focuses on identifying small issues—worn seals, early crown damage, loose caps, or minor moisture entry—before they turn into repairs.
During a routine visit near City Hall, we noticed early flashing deterioration. Replacing the flashing and sealing small gaps prevented water intrusion during the next heavy storm.
Upshot: Consistent maintenance helps keep chimney issues predictable and repair costs manageable.
Level 2 Chimney Inspection
When Is a Level 2 Chimney Inspection Necessary?
Level 2 inspections are recommended after severe weather, appliance changes, or during real estate transactions. Using camera equipment, we inspect liner joints, offsets, and flue surfaces that aren’t visible during a standard inspection.
Near Fort Trumbull, a homeowner requested a Level 2 inspection before selling their home. We discovered a hidden obstruction caused by bird nesting, corrected the issue, and documented the repair—allowing the sale to move forward without delays.
Upshot: A deeper inspection provides clarity when conditions change or decisions depend on chimney safety.
Chimney Crack Repair
How Does Chimney Crack Repair Actually Work?
Chimney cracks don’t all mean the same thing. Some affect surface masonry, while others run deeper into the liner or smoke chamber. The key is understanding where the crack is, why it formed, and whether it’s allowing heat, smoke, or moisture to move into areas it shouldn’t.
In a home near Montville Street, what looked like simple exterior cracking turned out to be early liner separation caused by freeze–thaw pressure. We stabilized the liner, repointed the surrounding mortar, and sealed the crown to stop water from feeding the problem. Addressing the cause—not just the visible damage—helped restore safe draft and prevented further deterioration.
Takeaway: Effective crack repair isn’t about patching what you see—it’s about correcting the conditions that caused the crack in the first place.
Chimney Leak Repair
How Can I Tell If My Chimney Is Leaking?
Chimney leaks aren’t always obvious right away. Musty smells, rusted components, or ceiling stains are often the first signs. In coastal areas, leaks commonly originate from damaged crowns, failing flashing, or missing caps.
Near Burritt Street, a homeowner dealt with recurring ceiling stains despite previous roof repairs. Once the chimney crown was sealed and the flashing corrected, the issue stopped completely.
Upshot: Identifying the true source of a leak early prevents water damage from spreading.
Chimney Cap Installation
Do I Really Need a Chimney Cap?
Chimney caps help keep rain, animals, and debris out of the flue while also improving draft and reducing downdrafts.
At a waterfront home on Arch Street, repeated bird nesting had become a recurring issue. Installing a stainless-steel cap solved the problem immediately and noticeably improved airflow.
Upshot: A properly fitted cap offers simple, year-round protection for your chimney.
Thinking About Chimney Care in New London
Every chimney ages differently, especially in a city like New London, where historic homes sit alongside newer construction. One thing remains consistent: chimney issues are far easier to manage when identified early. With over 12 years of experience, our CSIA (Chimney Safety Institute of America) and NFA (National Fire Academy) certified specialists provide inspections, repairs, cleaning, maintenance, and installations designed to keep your chimney safe, reliable, and performing at its best—protecting your home and everyone inside it.
Honest Feedback from Our Clients
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

Service Areas
We provide services across multiple areas in the Connecticut, serving both residential and commercial customers. Please check our service area map or contact us to see if we cover your location.


