Home Additions

High quality home addition design and build in Connecticut for over 40 years.  Allow your home to grow with your family.

Connecticut Home Additions


Home Additions are some of the largest home remodeling projects a homeowner can undertake. We have experience creating add-on spaces of all kinds including bedrooms, three-season rooms, garages, and in-law apartments.

Over 40 years of successful construction and remodeling have taught us to:

  • Work with you to design a beautiful space that is functional for your specific needs
  • Be transparent with our pricing, including providing you an itemized proposal
  • Work with expert and reputable sub-contractors with whom we have long-term relationships
  • Warranty our work for a minimum of two years from project completion and promise that we will stand behind the quality of our work even after that.

At Mainville Construction & Remodeling LLC we take the guess work and stress out of the equation. Our process starts with a footprint, structural design and a detailed list of all design objectives. We then provide a 3-dimensional print so that our clients can see their vision come to life. Once the design and layout have been determined, we then work closely with the homeowner to determine what products and materials are best suited for your home. Our goal is to build a home addition or three season room in Connecticut that is exactly what you are looking for, down to the smallest detail.

We only work with the high quality, reputable sub-contractors.  We have had relationships with many of our construction partners for decades.  And we will always complete continuous quality control to ensure your project is completed to our strict standards.

We will also always stand behind the quality of our work once your job is complete!

Call For a Quote:

(860) 539 9988

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Contact Us

263 Foxboro Dr. Newington, CT 06111

Lead Safe EPA Certification