Connecticut Helical Pile is a locally owned helical pile installer based in Ellington, Connecticut, serving the whole state. Its website says it is not a franchise and focuses on installing helical piles.
The site lists use cases including decks, home additions and complete foundations, pergolas and pool houses, garages and barns, ground-mounted solar, ADUs, modular and tiny homes, and commercial projects. It also installs piles for foundation stabilization and underpinning. After each job it provides PDF installation reports for engineers and inspectors, and it works with contractors, engineers and architects.
An instant quote option is on the site, and the phone number shown is +1860-288-9511. Ask to see a sample installation report, how pile capacity is determined for your soil, and whether an engineer's design is included for the building permit. These are general suggestions, not statements about this company's practice.