1620 Builders, Inc.

Whole-house rebuilds and big additions are what customers describe hiring 1620 Builders, Inc. for. The Plymouth, Massachusetts general contractor, which says it is run by Jonathan McKinney as president, holds 4.8 stars from 16 Google ratings and lists the South Shore, Cape Cod and the Islands as its area. In a December 2022 review, a Plymouth couple described the biggest of these jobs: a 1950s beach house gutted, brought up to code for a new third floor, reframed, resided and fitted with all new windows, a custom kitchen with walnut floating shelves handcrafted by the crew, and three new bathrooms, all during the pandemic's supply-chain problems. In a November 2023 review, another couple had their lower level finished with a bedroom, family room, full bath, exercise area and workroom. An architect wrote in April 2024 that Jonathan's team built a basement bathroom, a deck and new windows at their own home with fair, transparent pricing. More recently, a November 2025 customer had an ADU built for their mother at the quoted price, a December 2025 customer got a new sunroom on budget despite surprises in demolition and bad weather, and a January 2026 repeat client described a kitchen renovation and new flooring, with a few minor hiccups that Jonathan and his team addressed along the way. In November 2022, a customer in East Bridgewater said a crack formed across the ceiling below a load-bearing beam the company installed, and that none of their calls or messages were returned. Its Massachusetts home improvement contractor license, #156777, is active on the state registry. The BBB gives it an A+.