Custom Insulation Company, Inc.

Custom Insulation Company, Inc. has worked out of 16 Jacques Street in Worcester since 1985, and it holds Massachusetts Home Improvement Contractor registration 117804, verified active with the state registry in the company's own name. The Better Business Bureau has accredited it since May 1992 and grades it A+. Two things get done here: insulation — blanket, blown-in cellulose and closed- and open-cell spray foam — and seamless aluminium and copper gutters. Customers name the same people again and again. Eric Fleming handles most estimates: a 2025 customer working through two jobs, winterizing a three-season porch and swapping attic fiberglass for spray foam, described him offering several transparent price-point options and sending a team back when adjustments were needed. A 2022 reviewer had an energy audit first, then said Eric spotted a knee-wall they did not know existed and foamed it along with the attic, crawlspace and basement rim joists, adding cellulose to the walls and to a roof section that had been icing up. Nick quotes the gutter work — a 2026 customer had gutter repairs done the same week as the quote. On the crews, Oscar and Kevin come up twice in 2023, once for 1900 square feet of attic insulation over two days and once for careful work behind difficult aluminium siding. The technical detail in these accounts is unusually specific. A 2026 customer named the exact product — HFO closed cell foam, Accublock-150oc — and said old fiberglass was stripped and surfaces cleaned first, with no detectable VOC odour afterwards. A 2025 reviewer whose gas fireplace had been installed with no insulation behind it said three insulation specialists were contacted and only this company took the job, cutting the wall open, packing the void with blown-in mineral wool and patching it back. Another 2025 customer had mice-infested sunroom floor insulation replaced with closed cell and insulated sheathing, and was sent photographs of the removal and of the new work. Several jobs run through Mass Save. The numbers are consistent: Google shows 4.8 from 53 ratings, Angi and HomeAdvisor each show 4.7 from 79. Those last two are the same file — Angi and HomeAdvisor publish byte-identical pages here, so treat 79 as one count, not two. The only real blemish in the written record is mild: a 2022 gutter customer said parts shortages made the job take a while but it was finished to their satisfaction, and a 2022 spray-foam customer said a section was missed and the crew came straight back to fix it. For attic, wall, crawl-space or sunroom insulation and for gutters in central Massachusetts, this is a long-established, registry-verified company; ask for the written scope and the product spec, which its own customers say they get.