On Time Insulation Services, Inc.

On Time Insulation Services, Inc. is a Holliston, MA insulation contractor run by owner Marco Araujo, working across MetroWest and Greater Boston. The company describes itself as offering spray foam, blown-in and fiberglass insulation, insulation assessments and old-insulation removal, and its Massachusetts Home Improvement Contractor registration (#196098) is active in the state registry under the company's own name. Angi and HomeAdvisor each show a 4.9-star average across 24 ratings, Thumbtack 4.9 across 14, and in February 2026 a r/WorcesterMA poster answered a request for an insulation contractor with a plain "Call OnTime Insulation." Homeowners who hired Marco describe the same pattern year after year: a first visit that doubles as an education in insulation options, a quote he holds to, and a crew that shows up when promised. In a 2021 review, one customer said Marco priced several versions of the project so they could choose; another that year said the estimate came in right within budget after he walked them through the types of insulation on the market. A March 2021 reviewer who added onto their house said he quoted blown-in insulation four months ahead and stuck to that price. The work itself spans attics, basements, crawl spaces and rubble-foundation cellars, with a 2022 reviewer describing fiberglass pulled out of a basement and replaced with blown-in foam by a two-man team, and a 2020 reviewer having both closed-cell spray foam and blown-in cellulose installed to what they called a high standard. Older accounts add the details that build trust. In a June 2020 review, a homeowner said Marco's quote was not the cheapest but he was the one with the highest integrity, and that when the attic foam was not perfect he came back and fixed it. A September 2018 Thumbtack reviewer hired the company for spray foam on a ceiling with severe ice dams and noted Marco also repaired and repainted a water-damaged accent wall. The newest written account, from July 2025 on Thumbtack, was posted before the work started and praises the responsiveness and clear communication during the quoting stage. The complaints are mild and specific. Two November 2021 reviewers docked points: one for old insulation left on the ground and a crew that arrived without long enough tubing for a steep driveway and had to run it from the neighbor's, the other saying the work was good but scheduling and communication could be improved. Worth confirming before booking: the company's own site says 6 years in business while Angi and HomeAdvisor say 10, and HomeAdvisor lists a self-reported trade license number (CS-113065) that differs from the registry-verified HIC number. For a MetroWest homeowner weighing spray foam or blown-in for an attic, basement or crawl space, this is a well-regarded, owner-run choice. Ask for the crew's cleanup plan and site access needs up front, and get the schedule in writing.