Verified record
Robert Lamothe's work is in the spaces nobody wants to crawl into. A February 2021 customer had him spray-foam a crawl space and said the quote came back within a day. In an October 2019 review, a homeowner described an attic that had been losing heat for years — small, awkward, complicated by two skylights, and previously done by hand with fiberglass — reinsulated properly. The Spencer company describes itself as a family-owned insulation contractor working in open- and closed-cell spray foam, blown-in and mineral wool, insulation removal and thermal coatings, across central Massachusetts and into northeastern Connecticut. Its Massachusetts home improvement contractor registration, 196452, is active on the state registry. The written accounts run from September 2019 to February 2022, and they land on the same two things. Six of the fourteen mention showing up when promised — one wrote that he came when he said he would, explained what he was going to do, left an invoice and cleaned up the mess — and three others single out how clean the site was left. A November 2019 customer called, had a quote three days later, and the job was done in a single day. Insulation is not all of it. A December 2021 reviewer who hired him for insulation also had him finish a room above the garage. The most recent write-up, from February 2022, describes a 45-year-old kitchen rebuilt — cabinets, ceiling and walls, a new window, added insulation and new trim — but that reviewer opens by saying Robbie is his son-in-law, so it is family rather than an arm's-length customer. Two things about the star ratings are worth knowing. Angi's 5.0 from 14 reviews and HomeAdvisor's 5.0 from 14 are the same fourteen people on mirrored profiles, not twenty-eight customers, and a related-pros card further down Angi's own page shows this company as 4.87 from 15 rather than the header's 5.0 from 14. Angi's profile also advertises 7 years of experience where its own About text says over 19. For a crawl space, an attic or a bonus room over the garage that never holds heat, this is a small owner-run insulation outfit with a live state registration and a run of punctual, tidy jobs behind it. Since those accounts run 2019 to 2022, ask for a couple of recent local references, and have the quote spell out which foam goes where — open cell or closed cell — before the rig shows up.
“xpand at a compound annual growth rate of 7.8 percent through 2030. Residential construction and renovation projects represent a significant portion of this demand. The expansion enables the company to serve customers beyond its established service territory. Robert Lamothe, owner of Lamothe Spray Foam Insulation in Waltham, stated that the decision to extend coverage was driven by increased demand for professional insulation services in surrounding communities. “We’ve seen consistent interest from property owners looking for reliable insulation solutions. This expans”
To be transparent, Robbie is my son-in-law. We recently remodeled our 45 year old kitchen. Robbie and his crew installed all of the cabinets, replaced the ceiling and walls, installed a window and added insulation, and replaced the trim. I wish I could post a photo here to show the final outcome. He is extremely talented and doesn't cut any corners with his work. I would highly recommend him to anyone looking for a remodel or for spray foam insulation.
Robert was excellent to work with. In addition to the insulation we hired him to finish off a room above the garage. He did an awesome job. We are very happy with the work. With the winter upon as now we can definately see the difference with the spray foam verses traditional insulation in the other parts of the house. We highly recommend the product and Robert's company.
Robert and crew were excellent to work with. Robert came right out and submitted a quote within a day. He is friendly, easy going, and a hard worker. They did an excellent job Spray Foaming my crawl space. I highly recommend Robert Lamothe Insulation!
Where oh where do I start with Robert! There are TOO many good things to say about working with this man! The first time I ever used home advisor was find a contractor that could do spray foam insulation. Right off the back he contacted me very quickly regarding my inquiry (another pro took 4 DAYS) I loved that he explained the process to me (I was thinking of DIY foam), but didn t try to steer my decision to hiring a professional. He laid out the facts and let me choose. He was able to check out both my houses right away and followed it up with two quotes like he said he was going to do. It is the WORST when someone says they re going to do that but never do. I hate having to ask repeatedly. With Robert you don t have to worry about that. His quote came in at HALF of his competitors price! He was very helpful at providing me a multitude of different options on each house to fit all the requirements of the town. The spray foam insulation when finished came out beautifully and he left the place cleaner than when he started! But here s the kicker... Robert went above and beyond his insulation expertise. He seemed knowledgeable beyond just the insulation so I asked him if he was proficient in any other types of construction. Turns out he s a jack of all trades and knows his stuff! I needed some serious last minute help on my houses and Robert delivered. I was in shock! He helped with demo, framing, installed cabinets and doors, and coordinated with my other contractors to problem solve some issues. I couldn t be more thankful to have met him. It s hard to find great, fair, reliable, affordable contractors nowadays. Robert has old school work ethic though. He has pride in doing his best. I m so glad to have him part of my flipping team. You will not be disappointed if you hire Robert Lamothe I can promise you that! Things went so well with Robert that I used home advisor again to search for a plumber. That worked out just as well too!
I was very happy with the work they did!!
Specializes in
Also offers
Service area
Languages
Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
2 changes recorded — last scanned Aug 16, 2026.
Owner personally fixed a cracked window frame on site5.0
Attic insulation3.8
