D P & Sons Excavation

Massachusetts has no foundation-contractor license, but any contractor must be Home Improvement Contractor (HIC) registered. Structural work, such as piers or wall stabilization, requires a Construction Supervisor License and a building permit from the Millis Building Department, with PE-stamped drawings for significant repairs. Because the Charles River, Bogastow Brook, and surrounding wetlands and floodplain run through town, exterior excavation, regrading, or drainage discharge near those resources falls squarely under the Conservation Commission and the Wetlands Protection Act. River-corridor lots may also involve floodplain review, so confirm jurisdiction before any outside dig-out.

Millis is in the MetroWest band southwest of Boston, where labor runs moderately, below Boston proper but above central Massachusetts. Crack injection on a poured wall typically runs $400 to $900 per crack, the most common job here. An interior perimeter French drain with a sump pump usually lands between $8,000 and $20,000 depending on linear feet. A sump pump alone runs about $1,200 to $3,000, more with battery backup. Bowing or cracked wall stabilization with carbon-fiber straps or steel beams typically runs $5,000 to $12,000.

Massachusetts requires a written contract and a Home Improvement Contractor registration for most residential foundation repair & waterproofing work; ask for the registration number and check it before paying a deposit.

More on permits, costs, rebates and common questions, plus every other foundation repair & waterproofing contractor serving the town, on the Foundation Repair / Waterproofing in Millis page.