New Home & Commercial Construction in Middlebury & Danbury, CT Concrete foundation contractor and custom home builder Connecticut Foundations offers residential, commercial and industrial foundation construction services in the Middlebury & Danbury, CT area. For over 50 years, we've been a reliable choice for retaining walls, sidewalks, slabs and other poured concrete additions. Our team has the equipment, the skill and the dedication to get the job done. No structure can stand the test of time without a solid foundation. Start your project out on the right foot and call Connecticut Foundations today. We're standing by to get started on your concrete foundation construction work.