Your chimney is the heart of your fireplace system—and Protecting it starts at the very top, so be sure to install your chimney cap correctly. At GMT Home Services, we specialize in chimney rain cap installation for every style of chimney, from single flue to multi-flue systems. Whether you need to install it for the first time or replace an old one, our roofing and chimney professionals deliver safety, precision, and long-lasting results.
A chimney cap is more than just a cover—it’s your chimney’s first line of defense. Proper installations help:
Keep rain out of your chimney flue and masonry.
Block animals, leaves, and debris from penetrating the chimney flue.
Stop sparks and embers from escaping and damaging your roof.
Reduce downdrafts and improve your home’s safety and efficiency.
From a stainless steel chimney cap to a galvanized steel chimney cap, the right choice prevents damage to the top layer of chimney brick and saves you from costly repairs down the road.

“Snow and freeze-thaw cycles in Hartford County take a toll on your chimney. Stop cracks before they start with professional rain cap installation.”
Not every chimney is the same, which is why chimney caps come in several different designs to match your flue and crown. Homeowners often ask about the 7 different styles of chimney caps, and here’s how each one works:
Bolt-on single flue chimney cap – Secured with four L-shaped braces that clamp directly to the flue tile, this is one of the most common and durable options.
Slip-in chimney cap – Slides snugly into the flue tile without bolts, making installation straightforward.
Adjustable bolt-on chimney cap – A flexible version designed to fit both square and rectangular flues.
Multi-fit chimney cap – A universal option that adapts to homes with varying flue sizes.
Multi-flue chimney cap – Installed with masonry screws into the chimney crown, this style covers multiple flues with a single cap.
Sealing damper chimney cap – Provides an airtight seal that reduces energy loss while keeping out moisture and debris.
Universal chimney cap – Works across most round and rectangular flues with flanges that create a tight, secure fit.

Thinking about a DIY chimney cap installation? While it may look simple, The process requires precision and the right tools, so make sure to start the installation process with a clear plan. Here’s how professionals at GMT Home Services typically install a chimney cap safely and securely:
Pro Tip: Always clean the chimney crown before installing a new cap. Dirt, cracks, or uneven masonry can prevent a snug seal and shorten the cap’s lifespan.

“Wind-driven storms in New Haven County can push rain straight into unprotected flues. Keep your home safe with a custom-fitted chimney rain cap.”
One of the most common questions we hear is: “How much does chimney rain cap installation cost?” The answer depends on the style, material, and type of chimney you have. At GMT Home Services, we believe in transparent pricing, so here’s what you can expect:

While some homeowners attempt DIY installation—using a drill bit to screw the masonry screws, trying to finally tighten the bolts protruding on their own—the reality is that improper installation can cause drafts, leaks, or even a damaged flue. Hiring a pro ensures:
The chimney cap attached is the correct size for your single flue chimney or multi flue chimney cap.
The cap is aligned with following ranges of dimensions for round chimney flue and rectangular flues.
Proper use of masonry screws, flanges, and braces for a secure fit.
Ensures bolt on chimney caps to cap style’s installation guides for complex chimneys.
Full compliance with local codes and safety regulations.
Our team brings years of hands-on experience, installing chimney caps of every style while ensuring compliance with trusted industry standards, including NFPA fire codes and CSIA best practices.

Even the best cap requires upkeep. We recommend:
Inspecting your steel chimney cap close annually for rust or wear.
Cleaning the screen and mesh so air can flow freely.
Replacing old or damaged caps—especially after harsh winters.
Scheduling yearly chimney sweeps to keep the chimney flue clear.

Whether you need a chimney rain cap, a multi fit chimney cap, or a custom solution for square or rectangular flues, GMT Home Services is here to help. Your chimney protects your family—let us protect your chimney with expert chimney cap installations done right the first time.
Chimney rain cap installation protects your flue and masonry from water damage, debris, and animals. A properly installed chimney cap also prevents downdrafts and keeps sparks from escaping, making it a crucial part of chimney safety.
To install a multi flue chimney cap, professionals measure the crown, position the cap over both flues, and secure it with masonry screws drilled into the crown. This style covers multiple flues at once and is often custom-fitted.
An adjustable bolt on chimney cap is a flexible design that can expand to fit both square and rectangular flues. It’s popular because it can accommodate these chimney caps on chimneys with unique dimensions.
Yes. A band around brick chimney cap is designed to fit tightly around the outside of the chimney, making it a good option when flue tiles are uneven or when you want to cover the entire chimney top instead of just one flue.
The Draft King stainless steel chimney cap is a premium option known for its durability and weather resistance. Stainless steel construction makes it one of the best long-term investments for protecting your chimney crown and flue.
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