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A homeowner who was skeptical going in wrote in March 2026 that after the crack was fixed, the water stopped — and that they pointed a neighbor with the same problem to Cornerstone. That is the job this Fitchburg outfit gets called for: water coming through a foundation crack, and old basement walls that have given up their mortar. Its Massachusetts home improvement contractor registration, #219077, is active. Google's seven ratings average 5★, and the written ones run from late March to early July 2026. In July 2026 a customer had a basement wall repaired after more than 95 years of mortar loss, and said the crew also prepared the walls on the outside and around the entryway steps, where there were significant holes and possible rodent in-roads. Another, in March 2026, had an old fieldstone basement repointed in two days and called the work clean and efficient. Three of those reviewers name Ed. One says he did exactly what he said he would do, stayed communicative the entire time and went beyond the original scope; another describes him as patient on the phone and quick to respond; a third mentions an open line of communication through the job. Price comes up twice — an April 2026 customer called it reasonable and had the problem fixed the same day, and a March 2026 customer called it fair. One thing to square before calling: the company's own site describes it as "a new business committed to quality and community" while listing a service area across Connecticut, Massachusetts, New Hampshire and Rhode Island. Ask how far out of Fitchburg they travel and who would actually be doing your job. Its Angi and HomeAdvisor pages each show 5.0 from five ratings, but the HomeAdvisor profile mirrors the Angi one — the same five reviews, which Angi describes as sourced from Google — rather than a second set of customers. For a homeowner around north-central Massachusetts with a leaking foundation crack, a fieldstone wall needing repointing, or a basement in rough shape, this is a straightforward call. Pin down the scope and the price before work starts, and confirm they cover your town.
Cornerstone did wonderful work repairing a wall of my basement that had begun to lose the mortar after over 95 years. They also prepared the walls on the outside and around entryway steps where there were significant holes and possible rodent in-roads. I'm so very happy with the work that Cornerstone did, and all in 2 half days. Thank you, Edward. I much appreciate your help securing my basement and your extra care to help me with the loose steps. That was above and beyond. Keep doing lovely work to save basements all over Massachusetts.
Very polite and reasonable in price fixed problem same day ,very great with the communication on every step of the work being done best part its fixed ,highly recommend cornerstone
I was skeptical at first but, after the crack was fixed, the water stopped. I’m pretty impressed. My neighbor had the same issue, i recommended them to cornerstone.
Cornerstone repointed my old fieldstone basement and brought it back to life. The tech did it in 2 days and was so clean and efficient. Great work, would absolutely recommend!!!
Very reliable and true on what he does! Ed is honest and does amazing work. He also keeps open a great line of communication which is even better
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1 change recorded — last scanned Sep 4, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Cornerstone Foundation Crack Repair. 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
Step and staircase rebuilds5.0
Basement waterproofing5.0
Retaining walls5.0
Renovates century-old structures5.0
Wood and block retaining walls4.9
Foundation drainage4.1