People have come to rely on the outstanding results and excellent service from John's Construction since 2005. Proudly serving homes and businesses throughout New Haven County and Fairfield County, including the towns of Madison, Guilford, Clinton and New Haven. John's Construction delivers a wide variety of construction services customized to meet your needs. We make improve properties everywhere we go. Give us call to learn how we can transform your home or business. When storms hit, your roof loses a little bit of its life span.