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C Mac, Inc. is a Foxboro outfit built around concrete and foundation work — its Procore Construction Network profile lists Concrete and Earthwork as its trades, and its Better Business Bureau file puts it at 31 years in business under sole owner Chris Mcnamara. The one detailed account on file is a 2023 Google review from a commercial client, Alpha Scale Co, crediting the company with more than 50 completed foundations and praising Chris's role in the partnership's success — a specific, if business-to-business, endorsement rather than a homeowner's. Google otherwise shows a 4-star average from its four ratings. The Better Business Bureau grades the company A+, though it is not listed there as an accredited business. Worth asking about: with only one detailed review on file, and that one from a commercial partner rather than a homeowner, it is worth requesting recent residential references before booking foundation or concrete work.
CMAC has done over 50 foundations for us at Alpha Scale Co. We can say enough about how valuable Chris has been to our success as a company.
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1 change recorded — last scanned Sep 17, 2026.
Step and staircase rebuilds5.0
Basement waterproofing5.0
Retaining walls5.0
Renovates century-old structures5.0
Wood and block retaining walls4.9