Verified record
A 2010 southcoasttoday.com article named Robert Matias as the owner of Global Basement Waterproofing Co., a family-owned business in Dartmouth. In it he said a storm like the one covered could keep a company busy from six months to a year, because people were still calling after they got insurance companies involved.
“"A storm like this could keep a company busy from six months to year, because people are still calling after they get insurance companies involved," said Robert Matias, the owner of Global Basement Waterproofing Co., a family-owned business in Dartmouth.”
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1 change recorded — last scanned Sep 25, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Global Basement. 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
Basement waterproofing5.0
Retaining walls5.0
Bulkhead replacement4.8
Brick and 1850s fieldstone foundations repointed4.8
Structural carpentry4.8
Owner-led communication4.8