Middletown, CT (860) 883-8910
When we originally built our house, I loved the green siding we choose. Needless to say, 35 years later I was not so fond of it. John redid the siding on our house and it came out so wonderful that two of my neighbors went to him for the same thing.
- Mary C. from
   East Hampton, CT

Middletown Connecticut Based General Contractors, Providing Middlesex County & Surrounding Areas with High Quality Home Improvement and Construction for Generations.

From simple door replacements to complete new homes!

Demcon has the experience to get the job done on time and within your budget. Located in Middletown, Connecticut, John DeMelis specializes in all phases of construction including New HomesAdditionsHome RemodelingRoofingSiding,Wood FlooringWindow ReplacementsReplacement DoorsTrim Work, and Decks.

John DeMelis and his Experienced Team

Generations of excellence! We have the experience and expertise to help Connecticut homeowners that need new roofs, new siding, new windows, home improvements, etc. We work on our own homes. Our neighbors ask us to work on their homes. Our friends and relatives ask us to work on their homes. And their friends ask us to... well, you get the picture.

Proud to be Middlesex County's Premier Home Improvement Company

We started in the Home Exterior and Interior Remodeling business, as that part of our business grew and grew and grew, we formed Demcon, LLC in 2010 to focus solely on helping homeowners. Today, we have become Middlesex County's Premier Home Improvement Company.

John DeMelis leads the team of Residential Specialists who work with homeowners to solve their exterior issues, improve energy efficiency, eliminate or reduce maintenance, and design a new exterior look for their homes.

The entire team at Demcon, LLC (which stands for DeMelis Construction) is committed to your complete satisfaction with your new roofsiding, windows, doors, skylights, porches & sunrooms, room and second story additions and gutter systems.

Proudly Serving Middlesex County & All of Connecticut

Middletown, East Hampton, Cromwell, Berlin, Higganum, Durham, Madison, Middlefield, Old Saybrook, Portland, Haddam, Guilford, Meriden, Glastonbury, and Colchester.

©2019 John DeMelis General Contractor dba Demcon, LLC (CT)
We do floor sanding in Middletown, East Hampton, Cromwell, Berlin, Higganum, Durham, Madison, Middlefield, Old Saybrook, Portland, Haddam, Guilford, Meriden, Glastonbury, and Colchester.
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