Verified record
ESI Waterproofing and Masonry Restoration, Inc. is a Boston-based masonry, waterproofing, and historic restoration contractor self-reporting 39 years in business since 1987, serving commercial and residential clients across Greater Boston. The company is DCAMM certified, with registrations in General Contracting, Historical Masonry, Masonry Painting, Waterproofing, and HVAC, plus a long list of manufacturer certifications including SIKA, 3M, and Thermal-Chem approved-contractor status. The review history is small but detailed and comes largely from repeat commercial clients. One 2023 review describes engaging the company for a range of projects from $30,000 to $500,000 over three years, each delivered as proposed, on time, and within budget. Another describes repointing work on two buildings with strong project-manager communication, and a 2024 review describes correcting unforeseen issues on a building over 100 years old. A scaffold-services company also credited the team with being easy and professional to coordinate with on site. Worth asking about before booking: the written review count is modest given the company's long tenure, so it's worth asking for recent project references directly, particularly for residential-scale work given the review history's commercial lean. For Boston-area property owners with masonry, waterproofing, or historic restoration needs, the depth of certifications and the track record on large, complex projects point to an established, specialized operator.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from ESI Waterproofing and Masonry Restoration, Inc.. 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
ESI is an outstanding company. They are consistently responsive, staffed with knowledgeable experts, and deliver work of exceptional quality. I highly recommend ESI for any project—large or small—as their team has the experience and capability to handle virtually anything with professionalism and precision.
ESI has done work for our property multiple times with great results. It is a field that if you do not know what you're are doing you will have problems. We did have some unforeseen issues due to the age of the building over 100 years old and ESI was able to correct them one way. The correct way. I cannot say enough to express my satisfaction with them. Pricing and completion of work is what they do very well. I strongly recommend them.
We have engaged ESI for a number of projects in the last 3 years. These have ranged from $30,000 projects to $500,000 projects. Regardless of the size of the project, they have always done exactly what they proposed, on time and within budget. We would highly recommend them!
ESI repointed 2 buildings for us. They did a great job and I would use them again with no hesitation. The project manager was great especially his communication. They did a great job and did exactly what they said they would do. They delivered on time, on budget withe great quality. Rob
ESI is valued resource and are extremely knowledgeable
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1 change recorded — last scanned Jul 1, 2026.
Basement waterproofing5.0
Retaining walls5.0
Bulkhead replacement4.8
Brick and 1850s fieldstone foundations repointed4.8
Structural carpentry4.8
Owner-led communication4.8