Concrete foundations, excavation and site work for homes, additions, garages and ADUs across Greater Boston & Southern NH — poured straight, square and on schedule.
17
Years in business
200+
Foundations poured
100%
Licensed & insured
98%
On-time completion
02 — What we do
Full houses, additions, garages and ADUs — formed and poured straight, square and level. Your framing crew's best friend.
From full-lot digs to hand excavation under an existing house: grading, trenching, shoring and the groundwork every build stands on.
Poured-concrete walls that hold back earth and hold a straight line — engineered forms, real drainage, clean strips.
Additions and structural work beyond the foundation, delivered with the same schedule discipline we bring to concrete.
03 — How we build
We walk the lot, read the drawings, and return a line-item estimate you can actually hold us to.
Dig, grade, and shore — the site set up so forms go in right and trucks get where they need to be.
Layout checked twice, forms braced to hold, concrete poured in the right sequence at the right rate.
Forms off, walls waterproofed, site backfilled — and a foundation your framers will thank you for.
04 — Reviews
5.0
Based on Google reviews
“AC poured the foundation for our addition. They showed up exactly when they said they would, the walls came out straight and square, and they left the site cleaner than they found it. Our framer had zero complaints — which never happens.”
Mark D. — 2 months ago
“They handled the excavation and a retaining wall at our place. Tight lot, big elevation change, nervous neighbors — and it all went smoothly. Great communication from the first walkthrough to the final grade.”
Sarah K. — 4 months ago
“I'm a general contractor and AC is the only crew I call for foundations. Their work is consistently level and to spec, and they hit dates. On a schedule-driven build, that reliability is worth everything.”
James R. — 6 months ago
“We got three quotes and AC wasn't the cheapest — but they were by far the clearest about scope and timeline. No surprise costs, finished on schedule despite two weeks of rain. Would absolutely hire again.”
Laura M. — 8 months ago
“Basement underpinning on our 100-year-old house. Scary project, zero drama. They shored everything carefully, explained each step, and the new slab and walls look fantastic.”
Dave P. — a year ago
Read all reviews on Google
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Service area
Lexington · Newton · Burlington · Needham · Milton · Arlington · Carlisle · Saugus · Swampscott · Ipswich · Newburyport · Hudson · Southern NH
