Harmony Home Improvement

Reinventing Homes in Old Mystic, Connecticut

Welcome to Harmony Home Improvement, Old Mystic's premier provider of superior home improvement services. For over two decades, our comprehensive roofing, siding, window, door, and gutter installations have consistently met the high standards of discerning homeowners.

Dedicated to High-Quality Standards

We cater to homeowners aged 30 to 70 who value outstanding quality. Our Google Guaranteed, background-checked team upholds our GAF Master Elite Roofing Contractor status, emphasizing our commitment to providing unparalleled service.

Proficiency in Full-Scale Home Improvements

We specialize in complete replacement services, dramatically improving your home’s aesthetics, functionality, and lifespan.

Unwavering Warranties for Your Confidence

Every project undertaken by Harmony Home Improvement is supported by robust, industry-leading warranties, further reinforced by an additional labor warranty. This unwavering commitment gives our clients complete peace of mind and satisfaction in our work.

Upholding a Reputation of Trust and Excellence

Our ongoing commitment to superior service has earned us an A+ rating from the Better Business Bureau, along with numerous five-star reviews on Google, GAF’s website, Angie’s list, and other esteemed review platforms.

Embark on Your Home Improvement Journey with Harmony Today

If you’re in Old Mystic, Connecticut, and considering a home improvement project, Harmony Home Improvement is your trusted partner. Contact us today for a consultation, and understand why discerning homeowners consistently choose us for their home improvement needs. With Harmony Home Improvement, you can expect honesty, remarkable craftsmanship, and unrivaled quality. We look forward to helping you transform your home into the living space of your dreams.



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.


Book your free estimate online today!


Contact us via this website.


(860) 645-8899