Verified record
Northeast LM Construction is a father-son general contracting and remodeling outfit working out of Plymouth for the South Shore, the kind of crew people call for a kitchen or bath gone from tired to done right, or an addition that needs one contractor running the whole job. Michael Cosgrove, with more than three decades as a general contractor, and his son Liam started the company in 2018; carpenter Ed Broderick joined in 2020. The six Google reviews on file, all five stars and running from 2023 to 2025, describe a consistent pattern: homeowners hiring the company for one project and coming back for several more. In a 2023 review, a couple credited Northeast LM as general contractor on a full home build. Reviews from 2024 describe a full bathroom gut and a front-steps-to-porch rebuild, a separate full bathroom renovation with regular project updates, a basement renovation paired with interior painting and new windows, and a roof, front steps and shed for repeat customers; a 2025 review cites new siding, hardwood floors, bathroom remodels, and a pergola-and-deck project, calling the work timely and within budget. Its Better Business Bureau file — opened in 2021, for a company seven years in business — carries an A+ letter grade, though the business is not BBB-accredited. One thing worth asking about directly: the company's Massachusetts home improvement contractor registration, verified against the state registry, currently shows expired. BBB's profile separately lists a self-reported registration number for the company; that's the directory's own listing, not a verification. Given the volume of repeat, multi-project customers and the specificity of the work described, Northeast LM reads as the call for anyone taking on more than one home project at a time — but confirm the registration is current, or ask directly what lapsed and when, before signing anything.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from NorthEast LM Construction. 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
We have had L & M Northeast Construction do several projects around our house, new siding, hardwood floors, bathroom remodels and the last project a pergola and new deck. They have always been extremely professional, timely and within budget. The finished projects are beautiful.
My wife and I recently purchased a new home and were in major need of some bathroom renovations. We were so so so happy with how the newly renovated bathrooms turned out! Not only was it beautifully done but Northeast LM Construction kept us updated and reached out for any decisions that needed to be made. Will definitely be utilizing them again!
We hired Michael and Liam aka L & M Construction to do a few projects at our home. We had brick steps at the front of our home and they removed them and built us a beautiful porch which changed the entire look of our home. The other job was a full gut of our bathroom. The work that they did was amazing! They were extremely clean, neat and efficient. When they left at the end of each work day, I was always amazed at how their work area was always cleaned up. I could not have been happier with their work.
We love Northeast LM!!! They did a full basement renovation for us and it came out stunning. Along with a complete interior paint job on our first and second floor along with new windows. Can’t recommend them enough!! Don’t trust anyone else with our home remodels
There is no one else my husband and I would use other than Northeast LM Construction! We have used them for numerous projects at multiple homes. From a new roof, new front steps, to the most beautiful shed I’ve ever seen- they do it all! We are now in the process of putting an addition onto our home. Mike and Liam have been quick to answer any and all questions, professional, and just an overall pleasure to work with. We are thankful we found such an incredible company to work with!
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Jul 17, 2026.
Basement transformation4.9
Fast emergency response4.9
Reviewers know the crew by name4.1