Building and Remodeling

Servicing customers large and small in central New Hampshire.

Decosta Construction LLC
50 Highland Street
Plymouth, NH 03264


Septic Systems

Septic systems in New Hampshire can be a real challenge because of the ledge and soil conditions, the Presby systems save space and are so efficient we can get closer to the water table than any other method available.We have 20+ years working with and installing septic systems in New Hampshire.  We are certified installer of subsurface disposal system in the State of New Hampshire.

Contact Us today to discuss your septic system install.