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Silverline Waterproofing Specialist is a Boston waterproofing and foundation company. In a 2023 review, a customer said they interior waterproofed the entire basement and the damp wall dried out with no more mold. In another 2023 review, a customer said they repaired a crack in the foundation with epoxy and water no longer comes into the basement. In a 2023 review, a customer thanked Ron at Silverline for installing a French drain in the basement. In another 2023 review, a customer said they installed a foundation drain and exterior waterproofed two walls of the house. In a 2023 review, a customer said they installed a French drain to the rear of the property and sorted standing water issues. A 2023 review describes a slab foundation job quoted at $15K for 2-3 days. The customer wrote that Jahmar Henry asked for an additional $6K after a small crack appeared, took $7,500 and then another $6,500 for supplies, and that "they never showed up again to finish the project." The customer wrote that a promised refund check had not arrived as of 12/21/2023.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Silverline Waterproofing Specialist. 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
We would give a negative rating if possible. We're told that our slab foundations will be raised in 2-3 days duration and quoted for $15K. Jahmar Henry (who knows if real name was provided to us) showed up with two Spanish-speaking workers on 11/6/2023 to dig. After they dug, there was a small crack in the foundation, and he asked for additional $6K. After negotiation, we agreed to pay $20K in total to raise the foundation. He took our $7,500 on 11/6/2023 claiming to place order for supplies then left. They returned on 11/7/2023 to put the tart on the trench and Jahmar took our another $6,500 saying more building supplies were needed. He told workers to cover up the trench while waiting for the supplies and told us he ordered 10-yard concretes which would be delivered on Saturday, 11/11/2023. Guess what - they never showed up again to finish the project. He kept telling us the suppliers cancelled on him again and again; at the end he said he would refund us. Guess what - check for the refund never arrived as of today 12/21/2023!! What a rip off!!! We recommend folks to stay away from this company as far as possible! Writing this review only hope no more hard-earned money gets robbed in front of your face.
We would give a negative rating if possible. We're told that our slab foundations will be raised in 2-3 days duration and quoted for $15K. Jahmar Henry (who knows if real name was provided to us) showed up with two Spanish-speaking workers on 11/6/2023 to dig. After they dug, there was a small crack in the foundation, and he asked for additional $6K. After negotiation, we agreed to pay $20K in total to raise the foundation. He took our $7,500 on 11/6/2023 claiming to place order for supplies then left. They returned on 11/7/2023 to put the tart on the trench and Jahmar took our another $6,500 saying more building supplies were needed. He told workers to cover up the trench while waiting for the supplies and told us he ordered 10-yard concretes which would be delivered on Saturday, 11/11/2023. Guess what - they never showed up again to finish the project. He kept telling us the suppliers cancelled on him again and again; at the end he said he would refund us. Guess what - check for the refund never arrived as of today 12/21/2023!! What a rip off!!! We recommend folks to stay away from this company as far as possible! Writing this review only hope no more hard-earned money gets robbed in front of your face.
Repaired crack in my foundations with epoxy and happy with outcome and they were the best quote I received.
Big thanks to Ron at silverline installed a French drain in my basement I'm very happy with the results.
Repaired crumbling foundations and did a excellent job.
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2 changes recorded — last scanned Sep 24, 2026.
Basement waterproofing5.0
Retaining walls5.0
Bulkhead replacement4.8
Brick and 1850s fieldstone foundations repointed4.8
Structural carpentry4.8
