Harmony Home Improvement

Harmony Home Improvement

Harmony Home Improvement
225 Oakland Rd Ste 304, South Windsor CT, 06074 USA


About Us

Harmony Home Improvement is dedicated to offering superior products and services to our valued customers. We specialize in commercial and residental steep slope roofing, siding, and window installation. We are a fully licensed and insured company in the state of Connecticut, and service the entire state. All of our installations come with the longest factory backed labor and material warranties. Please take a moment to view some of our completed job photos, we are very proud of our work. Please contact us if we can help you with any of our services. Thank you.

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*Contractors enrolled in GAF certification programs are not employees or agents of GAF, and GAF does not control or otherwise supervise these independent businesses. Contractors may receive benefits, such as loyalty rewards points and discounts on marketing tools from GAF for participating in the program and offering GAF enhanced warranties, which require the use of a minimum amount of GAF products. Your dealings with a Contractor, and any services they provide to you, are subject to the Contractor Terms of Use.

Customer Reviews

4.7 (46)

Google Reviews

Contractor reviews from customers on Google

  • "Dennis and his team were absolutely amazing! We would recommend them to anyone looking to get their roof done. They went above and beyond to help us in such a short notice and we are forever thankful. If you need your roof done look no further because Harmony Home Improvement is the place to go! Thanks again Dennis and we look forward on calling you for future projects we need done ❤️"

    - H.S, Apr 25, 2023

  • "I was due for a roof replacement and gave Harmony a call to get a quote. Spoke to Dennis, answered a few quick questions and then set up a time to meet. When he came to my house to discuss he had already come up with estimates based on satellite images of the roof. No BS, he just explained the process, answered a couple questions I had, and then he gave me multiple options based on the different brands of roofing material, as well as the different warranty options. I loved having one page that very clearly laid out different options, and what the price would be for each option. Much more transparency than I'm used to. On top of that, the price I paid ended up being a bit better than other quotes I received. They also added an additional vent to the roof so that I can have my handyman add some piping so my bathroom fans vent outside, rather than just in to the attic like they currently do. Initially one shingle was slightly curled after the installation, and when I mentioned it to Dennis he said that it would most likely flatten itself out within a day or so, and sure enough, by the next day it had flattened out and that spot looks as good as the rest of the roof. If I were to nit pick a few of my tall grassy plants along the walkway by the back porch got a little beat up. But it may have been unavoidable. They did put up some sheeting to protect the plants along the side of the house and seems like they did the best they could. Also, the vent that was installed for the bathroom ceiling fans wasn't placed exactly where we had initially discussed, so my handyman will definitely need to use some extra piping to get from where the fans are to where the vent was placed. Fortunately I don't think this will be a big deal. 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!"

    - R.P, Jun 16, 2022

  • "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 (24x7) to answer question and continually stopped on-site throughout the job to inspect progress and insure 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."

    - J.P, May 26, 2022

See All
4.6 (72)

GAF Reviews

Contractor reviews from customers with verified GAF purchases

  • "Customer asked us not to share his/her review."

    - X.X, | Wethersfield CT
    Dec 9, 2021

  • "Customer asked us not to share his/her review."

    - X.X, | Vernon CT
    Dec 7, 2021

  • "Professional%2C Knowledgeable%2C Friendly Contractor"

    - R.A, | Glastonbury CT
    Aug 27, 2021

4.6 (72)

GAF Reviews

Contractor reviews from customers with verified GAF purchases

  • "Customer asked us not to share his/her review."

    - X.X, | Wethersfield CT

  • "Customer asked us not to share his/her review."

    - X.X, | Vernon CT

  • "Professional%2C Knowledgeable%2C Friendly Contractor"

    - R.A, | Glastonbury CT

  • "Timely and clean"

    - J.G, | Vernon CT

  • "Customer asked us not to share his/her review."

    - X.X, | South Windsor CT

  • - P.M, | South Windsor CT


    - T.V, | Southington CT

  • "Customer asked us not to share his/her review."

    - X.X, | VERNON CT

  • "Customer asked us not to share his/her review."



    - J.P, | East Hartford CT


    - J.M, | Southington CT


    - G.C, | Newington CT

  • - R.T, | Plantsville CT

  • - F.D, | plainville CT

  • - W.N, | vernon CT


    - J.W, | wethersfield CT

  • "Excellent in all respects"

    - O.F, | bolton CT

  • "Customer asked us not to share his/her review."

    - X.X, | rocky hill CT

  • - V.T, | South Windsor CT


    - P.S, | Unionville CT

  • "Professional & Knowledgeable Contractor/Excellent Installer"

    - B.M, | Glastonbury CT

  • "Harmony Home Improvement was very professional, and up to date with technology, using it for a quick and concise estimate, was on time for all appointments and followed trough on all contractual obligations."

    - J.B, | Rocky Hill CT

  • - N.D, | Marlborough CT

  • "Customer asked us not to share his/her review."

    - X.X, | Manchester CT

  • "Professional & Knowledgeable Contractor"

    - N.L, | Rocky Hill CT

  • - B.L, | Plainville CT

  • "acted in a professional and courteous manner. Very good, cleaned up job. Fair price."

    - D.B, | Vernon CT

  • "Customer asked us not to share his/her review."

    - X.X, | East Hartford CT

  • "did not conform to time limit didn't show up when they said they would. Roof leaks around chimney now will not fix. Now can see out under eave. was not not that before always have an excuse why it not their fault. Roof was fine but old so decided to change. Bad decision."

    - S.R, | Vernon CT

  • "Are safetly minded Quick turn around, Quility"

    - E.S, | Tolland CT

  • "Customer asked us not to share his/her review."

    - X.X, | Columbia CT

  • "Were very professional and did what was agreed to on the contract."

    - J.P, | Unionville CT

  • "Customer asked us not to share his/her review."

    - X.X, | Columbia CT

  • "Do what they say"

    - G.D, | East Hartford CT

  • "Are professional and reasonable. Project completed satisfactorily."

    - A.M, | Windsor CT

  • - D.A, | Amston CT

  • - W.B, | Lebanon CT

  • "deliver a quality job at a competitive price."

    - G.D, | Manchester CT

  • "Customer asked us not to share his/her review."

    - X.X, | Glastonbury CT

  • "realized I had leadks in my roof and completed the job right away"

    - B.M, | Vernon CT

  • "are very professional"

    - S.T, | Newington CT

  • "were on target with my needs."

    - J.L, | West Suffield CT

  • "do a great at a fair price"

    - J.D, | Vernon CT


    - B.D, | South Windsor CT

  • "Provde a great value."

    - D.R, | Colchester CT

  • "do the best work neat and clean up great"

    - E.H, | Enfield CT

  • "Good price and service"

    - R.T, | Harwinton CT

  • "the staff worked efficently and answered all my questions very professional"

    - C.N, | New Britain CT

  • "Customer asked us not to share his/her review."

    - X.X, | Norwich CT

  • "would cherish the protection qualities of this product to pressure the investments they have namely a home"

    - M.P, | Windsor CT

  • "met the expectations they promised"

    - J.T, | Wethersfield CT

  • "Did what they promised and on time. Very good workers."

    - J.B, | Marlborough CT

  • "would be amazed at the professionalism and the end results"

    - M.W, | Windsor CT

  • "Did what they say they were going to do"

    - G.T, | West Suffield CT

  • "are highly responisive from the initial phone call for an estimate through completion of the installation they do not pressure you to sign contract"

    - T.P, | South Windsor CT

  • "Excellent installation and price"

    - P.S, | Enfield CT

  • "did a good job and completed it within one day."

    - A.P, | South Windsor CT

  • "are one of the best."

    - R.F, | Meriden CT

  • "Very professional and afforable"

    - D.B, | West Dover VT

  • "Customer asked us not to share his/her review."


  • "yes"


  • "theres company was recommended to me by a freidn"

    - A.W, | HARTFORD CT

  • "did a good job."


  • "Performed quality work in a short period of time. The clean up was amazing. I didn't find any scraps or nails around the house or lawn."

    - M.H, | East Hartford CT

  • "acted professionally and satisfied my questions."

    - J.D, | ROCKY HILL CT

  • "are very thoughtful and sincere gave careful recommendations and really understood my needs"


  • "Are professionals"

    - D.G, | Storrs Mansfield CT

  • "are excellent-great customer service-great job."

    - M.M, | Hebron CT

  • "very likely go beyond expectations."

    - C.M, | Lebanon CT

  • "did a good job. i hope will find out when it rains really hard if job was done right"

    - D.R, | Windsor CT

  • "Customer asked us not to share his/her review."


  • "I would not recommend them."

    - N.A, | CHESHIRE CT

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