American Precision Developers

American Precision Developers is a Cambridge design-build firm co-founded in 2021 by Estenio Lima, a master carpenter and licensed construction supervisor, and Sara Yoffe, a lawyer, real estate broker and licensed construction supervisor; its Massachusetts home improvement contractor registration is active. Google shows 5 stars from 21 ratings, and Angi shows the same from 12, with an "Approved" badge and about 5 years on the platform. The clearest thread across two dozen reviews is aging-in-place bathroom work done with real specificity: one homeowner had a 1980s tub/shower combo in her mother's condo gutted and rebuilt into a walk-in shower with a new vanity, fan, medicine cabinet and lighting, and singled out Sara for patience with her mother's questions and for straightforward, fair pricing from someone who'd done "a lot of home renovations" before. Another describes converting a bathtub into a walk-in shower with grab bars and low thresholds for a father-in-law, with Sara handling the city permitting and Stan running the crews on schedule. Several reviewers describe multi-year, multi-project relationships rather than one-off jobs: one homeowner lists three separate large projects over two to three years — a main-level kitchen, dining and living room remodel; a basement water-damage restoration and mudroom rebuild; and a bathroom, primary bedroom and family room remodel — crediting both Sara and Estenio with listening carefully and offering design suggestions. Another paid roughly $40,000 for a primary bathroom renovation, with Sara setting up direct vendor accounts and a trade discount for tile, and Stan catching and fixing small imperfections without being asked, over a running text thread. A West Cambridge homeowner describes a full basement-plus-three-floors renovation aimed at an energy-efficient result for a young family. The harder, more custom jobs get real detail too: fitting a stove hood and tiled backsplash into what one reviewer called "a very difficult space," and building a custom cabinet with frosted-glass doors for a rooftop condo's third floor, both completed on schedule and on budget. Nothing negative shows up across the written record. The one specific timeline detail on file: a full bathroom accessibility renovation took about two weeks start to finish, with the crew keeping the adjacent kitchen usable throughout — worth asking about if timing matters for your project.