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American Form Corporation is a Rhode Island concrete foundation contractor that describes itself as the largest foundation builder in the state. Its Better Business Bureau profile lists a Rehoboth, Massachusetts address plus a second location in East Providence, Rhode Island. The company's own website says it was founded in 1962; its Better Business Bureau profile instead puts its start date at 1978 — worth asking about directly. It works on residential and commercial foundations, retaining walls, sea walls, septic system retaining walls, swimming pool foundations, flatwork, and stamped concrete, and says it belongs to the Rhode Island Builders Association. It carries an A+ Better Business Bureau grade, though it isn't BBB-accredited, and a BuildZoom score of 90. BuildZoom lists a Rhode Island general contractor license, #GC-2087, for residential and commercial work, and separately lists license #2087, last checked with an expiration date of July 2022. Confirm the status of that older license and how long the company has actually been operating before signing a contract.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from American Form. Use it to sanity-check bids, then get the real number in writing.
Not sure which you need? Start with an inspection — many reputable companies assess free, and independent assessments run up to $500.
The wall run getting the drain — a full 30×40 ft basement is about 140 ft.
Estimated range
$7,600 – $15,000
Typical waterproofing project around $11,300
Specializes in
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2 changes recorded — last scanned Sep 11, 2026.
Basement waterproofing5.0
Retaining walls5.0
Bulkhead replacement4.8
Brick and 1850s fieldstone foundations repointed4.8
Structural carpentry4.8
Owner-led communication4.8