Local business · South Weymouth, MALocal business · 87 Thicket St, South Weymouth, MA 02190
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Typical Greater Boston range for this kind of work, from regional averages — not a quote from Isabel Construction. 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
Wet basements and failing foundations are the whole of Isabel Construction's work: basement and crawl space waterproofing, structural and foundation repair, and the masonry and epoxy flooring that go with them. Don Isabel founded the South Weymouth company more than ten years ago, and its site says he has spent the past 20 years in the trade. On Porch, where the company is listed as a waterproofing contractor, it carries a 5.0 average across 43 ratings. It works from 87 Thicket Street in South Weymouth and names a service area running from Weymouth, Braintree and Quincy out to Rockland, Marshfield, Plymouth, Bridgewater, Brockton and Taunton, with Boston, Brookline and Somerville on the list as well. Its Massachusetts home improvement contractor registration, #184220, is active and held in Donald Isabel's name. One small thing to square up front: the company's own site puts it at about ten years in business, while the Porch profile says seventeen — worth asking which stretch is which when you call. For a homeowner with water coming into the basement or a foundation that needs shoring, this is a specialist rather than a general remodeler. Ask for the scope in writing with the drainage details spelled out, get the warranty terms on paper, and ask for a couple of nearby addresses where the same fix was done.
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No changes recorded yet — last scanned Aug 12, 2026.
Garage and mudroom additions3.9
Leaves homes quieter and draft-free4.5
Retaining wall finished in under four days4.6
Took on a pool rebuild other companies turned down4.9
Active state license3.3