Harmony Home Improvement


At Harmony Home Improvement, we bring over two decades of experience in delivering exceptional residential roofing and exterior home improvement services to our valued customers. Our unwavering commitment to excellence is reflected in our utilization of premium building materials and factory-certified installations. We create a harmonious balance between our customers, contractors, and the community, making us the most trusted name in Connecticut.


At Harmony Home Improvement, we know you have options when it comes to who you hire for your exterior renovation projects. When you're considering hiring a contractor, it's natural to have some concerns and fears, like:

As a leader in the residential roofing and home exterior improvement industry, Harmony Home Improvement is dedicated to delivering exceptional quality and unparalleled customer service. All of these questions and considerations are valid and common, and our team of experienced craftsmen is fully committed to your comfort and satisfaction. Our transparent pricing, use of high-quality materials, licensing, insurance, and factory training brings peace of mind to homeowners who choose us.

Our commitment to excellence is evident in our numerous certifications and awards, including recognition as a GAF Master Elite® Contractor,  CertainTeed ShingleMaster®, and TAMKO Pro Certified Contractor. These accolades are a testament to our expertise and unwavering commitment to customer satisfaction.

We are proud to offer our customers the strongest, longest-lasting warranties in the industry, backed by the manufacturers of the superior products we use. Our certifications and exceptional workmanship are not only recognized by the manufacturers but also by our satisfied customers, as we work to create a harmonious balance between customer, contractor, and community.

We also take pride in being a GAF Certified Green Roofer™, making every effort to recycle waste and minimize our impact on the environment. Whether you need roofing, siding, or other home exterior services, trust Harmony Home Improvement to bring your vision to life.

Need help? call us today!

(860) 645-8899



For your convenience, we are now offering online booking for estimates! Book your free roofing, siding, windows, doors, or deck consultation right on our website.


Five-Star Reviews

At Harmony Home Improvement, we understand the value of family and having a place to call home. We treat our customers like we would treat our own family, providing the latest home improvement and roofing, siding, windows, doors, and decking products installed with expert workmanship. Our customer testimonials share the stellar experience you can expect when choosing us for your exterior remodeling project.


Just had Harmony replace my entire roof as well as three skylights. From the quoting process through delivery of material and install the process was smooth and most importantly to me the communication was clear. The crew was timely, friendly and left my yard in great shape. Can’t recommend them enough and actually I’m talking with them now about my gutters!

Andrew Fritsch

We hired Harmony to re-side our house. Dennis was professional and knowledgeable during the quoting process. They were in the same price range as two other companies we had quote the project, but were slightly lower in cost. We ended up choosing Harmony because we felt most comfortable with Dennis. The siding team showed up on time every day and only needed 3 1/2 days to complete the project. The house looks great and there were absolutely no issues throughout the entire project. We would highly recommend Harmony and will use them again for future projects at our home.

Kyle Raczkowski

We recently hired Harmony to replace our roof and install vinyl siding and new gutters. Our experience with Harmony was exceptional. The quality of work was top-notch. Dennis kept us informed of every aspect of the job. He was always available (24×7) to answer questions and continually stopped on-site throughout the job to inspect progress and ensure we were satisfied. Most importantly he is honest and caring; a quality sometimes absence in the home improvement business. I am happy to recommend Harmony Home Improvement.

Jim Peterson

Overall, very pleased with how everything went and I really appreciated Dennis’ no BS approach to things. Some of my windows are showing their age and I will most likely be giving Harmony a call again when the time comes to tackle that project. If you’re in to hiking at all, ask Dennis about his adventures in the White Mountains!

Ross Pieper

Could not recommend Harmony highly enough! I recently had recurring wind damage to my roof (installed by a different contractor), which ultimately required a complete roof replacement. Harmony stood out from the first conversation. Dennis was extremely responsive, prompt, worked up a thorough and competitive proposal, and literally went out of his way to assist with the insurance claim. Perhaps most importantly, however, it was the overall customer experience – their attention to detail, low-pressure approach, and competence and professionalism – that left you feeling like they were more concerned about servicing the customer than just getting another sale.

Mark Forbes
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When it comes to your home, choose the best! From roofing to siding, to windows, doors, and decks, we are Connecticut's top choice for exterior renovations.

8000 +
Completed Projects
21 +



    Book your free estimate online today!


    Contact us via this website.


    (860) 645-8899