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Retrofit Insulation, Inc. describes itself as an existing-home specialist and a BPI Goldstar contractor that looks at heating, insulation and ventilation working together as one system. A recent customer said they found the company on a contractor list provided by MassSave, and that the scheduled work was completed promptly and thoroughly, including correction of a previous MassSave project from 2018 done incompletely. A 2026 customer wrote that the company weatherized their home through the Rhode Island Energy Weatherization Program, that the work took about 3 days, and that Junior, Gus and Shawn showed up when they said they would. A 2025 customer said the company added insulation and other weatherproof materials to the attic and to the rim joist in the basement, and weather-stripped the outside doors, through the Mass Save program. A 2025 customer said the company handled the MassSave rebates on their 145 year old home, and that Joe worked around other contractors while the home was under construction. A 2025 customer described air sealing, blown-in insulation and some door weather seal through Mass Save by a two-man crew. A 2025 customer wrote that the company did attic blown-in insulation and insulated the exterior walls, and said they noticed savings on their energy bills. A 2025 customer said the company came out immediately and rectified a bathroom fan issue under warranty. In 2017, a BuildZoom reviewer said their house was well insulated. On Google, the company holds 5 stars from 11 ratings.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Retrofit Insulation, Inc.. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,000 – $11,000
Typical exterior project around $7,500
Had an excellent insulation experience with Retrofit. Found them from a long list of contractors provided by MassSave. Scheduled work completed promptly and thoroughly, including correction of a previous MassSave project (2018) done incompletely.
We had RetroFit Insulation weatherize our home through the Rhode Island Energy Weatherization Program and have nothing but great things to say about these guys. The Crew, Junior, Gus and Shawn we’re fantastic, all very polite, courteous, and generally very professional. The Work took just about 3 days to complete, and communication was excellent throughout the process. The Crew was extremely punctual, always showed up when they said they would and completed what they said they would complete. In short, we could not have asked for a better experience. We highly recommend RetroFit for any weatherization project.
Retrofit Insulation came out through the Mass Save program and added insulation and other weatherproof materials to my attic, to the rim joist in the basement, and weather-stripped the outside doors. I can't emphasize enough as to how good Shawn and Paul were. They were professional, friendly, and extremely accommodating. You really never knew they were working in your home and when they were done, you never knew they were there. I never expected it to be so easy and glad they chose to pick up my Mass Save project. Also a shout out to Steve in the office for selecting this crew. I would highly recommend their company.
Joe and all the guys at RetroFit Insulation are awesome. They handled all the MassSave rebates and ensured I received everything that the program provides. We own a very old farmhouse with some daylight peaking through the exterior envelope in places. We spoke with several local Insulation companies prior to finding RetroFit. We are so happy we didn’t settle for the others. Joe gave me a master class on insulation. His industry knowledge of construction, insulation, codes and the MassSave program is unsurpassed. Retro-Fit worked tirelessly to seal the small gaps throughout our 145 year old home. Joe worked with us and our schedule as our home was under construction and some areas were not accessible at times. In short, they worked harder than they needed to because Joe wanted to make sure everything was perfect while he worked around other contractors in various stages of construction. Joe’s communication was excellent and his crews ALWAYS showed up when they said they would and completed what they said they would complete. I highly recommend RetroFit for any insulation project.
I highly recommend Retrofit Insulation, Inc. for home Weatherization. The owner, Joe, and his team are excellent. They did a thorough job weatherizing my home and I was very happy with their work.
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1 change recorded — last scanned Oct 9, 2026.
Window replacement4.6
Full renovations4.6
Bathroom renovations4.6