Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Warren Design Build. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$23,000 – $35,000
Typical remodeling project around $29,000
Warren Design Build is a design-build company whose website lists Berlin, Framingham, Acton and Weston among the towns it serves. A 2026 customer wrote on Google that they hired the company for a renovation because Carl told them, “I’ve never designed a project I haven’t built,” and that after taking their deposit and starting the design work, Carl and Sara told them by email that they would not complete the build. That 2026 customer said Carl and Sara did not call to discuss the change. When the customer asked for the deposit back, the company refused and said it would charge additional fees exceeding the deposit, a decision the customer said left them without a builder and delayed the project. On its Houzz profile, the company describes over 30 years of experience designing and building homes. Its Massachusetts home improvement contractor registration, number 124041, is active on the state registry, with Carl Warren as the holder of record.
We hired Warren Design Build for a renovation based on clear representations that they would both design and build the project. Carl told us, “I’ve never designed a project I haven’t built,” and we relied on that in moving forward. After taking our deposit and starting the design work, Carl and Sara informed us by email that they would not complete the build. They did not call to discuss the change. When we asked for our deposit back, they refused and stated they would charge additional fees exceeding the deposit. Their decision left us without a builder and delayed our project. We do not recommend Warren Design.
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2 changes recorded — last scanned Sep 28, 2026.
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