Verified record
A basement that had seeped for years, a crawl space, a wall that puddled near the furnace every heavy rain — the jobs customers describe with Premium Waterproofing and Foundations are about keeping water out of the house. In a July 2024 review, a homeowner wrote that two other companies had tried and failed on an ongoing basement leak before James came out, gave a quote and fixed it. The company works out of 145 Middlesex Ave in Somerville and, on its own site, covers foundation repair, basement waterproofing, drainage systems, masonry and step repair, chimney work and retaining walls for homes and businesses across the inner Boston suburbs, from Cambridge and Medford out to Newton, Lexington and Revere. The written reviews run from July 2024 to June 2025. April 2025 customers described a wall leak traced to its source and sealed with a waterproof barrier, mold behind a storage shelf treated along with the moisture causing it, and a crawl space waterproofed. A September 2024 reviewer said seepage they had lived with for years was finally resolved; another that month, whose indoor waterproofing system had been overwhelmed and basement flooded, said the installation team did not leave until everything was put back as it had been. Foundation and masonry work runs alongside it: August 2024 reviewers described a repaired foundation crack and a foundation waterproofed at what one called a reasonable price, three 2024 reviews cover chimney repairs and a chimney replacement, and a June 2025 customer had new granite steps set in place of crumbling concrete ones. One thing to settle before you call. The Better Business Bureau's profile for the company carries an 'Important information' notice saying that, according to information in BBB files, it appears the business is no longer in business; the same page lists James Smith as manager and one employee. The company's own site is still up and lists a full service area, so confirm they are trading before you plan around them. If you have a wet basement or a cracked foundation in the inner suburbs, this is precisely the work the 2024–2025 reviews describe. Check first that they are still operating, then get the scope, the drainage detail, the price and the warranty in writing before any digging starts.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Premium Waterproofing and Foundations. 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
New granite steps replaced our crumbling concrete ones. The edges are clean, support is solid, and it really stands out now.
We wanted to finish our basement but had to deal with occasional damp spots. Their waterproofing service gave us the green light to move forward confidently with renovations.
Mold started showing up behind a storage shelf, and we were shocked to find hidden moisture. Their basement waterproofing experts not only treated the mold but tackled the cause to stop it for good.
Water used to leak through the basement wall during heavy rain, creating puddles near the furnace. They found the source of the leak and applied a waterproof barrier that worked instantly.
I was impressed with their fast response and attention to detail. The waterproofing solution they installed has already stood up to two storms without a single issue. Definitely recommend them!
Specializes in
Also offers
Service area
Languages
1 change recorded — last scanned Aug 15, 2026.
Chimney rebuilds3.1
State-verified active Home Improvement Contractor licenseNot yet rated
Basement waterproofing5.0
