Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Gold Seal Waterproofing. 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
Gold Seal Waterproofing is an Auburn-based basement waterproofing contractor — foundation crack repair and sump pump installation — run by Paul R. Beauregard (also doing business as DMS Construction), who the Better Business Bureau lists with 40 years in business, dating to 1985. It holds a BBB A+ rating, though it isn't a BBB-accredited business. The handful of reviews describe careful, honest work. A 2026 review describes a hole patched in an 1910 home's original foundation, with Paul praised for his knowledge of older foundations. Another 2026 review describes Paul giving an honest opinion that a rocky site made the job difficult and recommending other companies that might handle it better rather than taking the work anyway. A 2024 review describes foundation repair for a wet basement completed the same day as the estimate, at a price well below a phone quote from a larger company, and a 2023 review describes a basement leak fixed quickly and reasonably. An undated account describes a rough, uncovered sump basin replaced with an enlarged, covered one and a new pump within a week of the quote. With only four reviews on Google plus one outside mention, spanning 2023 through 2026, it's a small written sample — but every one is positive, and the recurring theme is honesty about scope: recommending other companies rather than taking on work that isn't a good fit. For foundation crack repair or basement waterproofing in the Worcester area, that's a meaningful signal even with limited volume.
“Highly recommended. Paul was able to visit my home and provide a very reasonable quote within a day. Work was completed in one day the following week. I had a rough, uncovered sump basin and pump needed upgrade. Paul replaced pump and installed an enlarged, covered sump basin... The new unit is incredibly quiet and has been working great. - Meghan Langley”
Paul was very knowledgeable about old foundations (1910 house) and patched a hole we had. If we need more waterproofing we will definitely call him again.
Paul let me know his honest opinion on the work and reported because of the rocks it is a difficult job- Explained whatever potential solutions that he could think of and recommended other companies that might be handle the work. Appreciated the honesty and him taking his time to explain things.
Needed foundation repair that was causing a wet basement. Paul came out quickly to do an estimate and then said he could do the work right then and there. His quoted price was significantly less than a quote from a larger company that gave me an estimate over the phone. He repaired the problem quickly and professionally and did a thorough inspection of the rest of the foundation as well. I recommend Gold Seal Waterproofing highly. It is clear that Paul takes pride in his work and does an excellent job at a reasonable price.
Fixed leaking in our basement quickly and for a very reasonable price.
Specializes in
Also offers
Service area
Languages
1 change recorded — last scanned Jul 5, 2026.
State-verified Home Improvement Contractor license since 20254.0
Next-day response to window water entry5.0