Spray Foam Insulation in Lowell, MA

I have been doing business with Star Insulation for over five years and I’m always more than satisfied with their quality of work. Star insulation is my go-to company when I need insukators.

I am ecstatic with the work done at my home by Star Insulation. I had gutted a 12x12 addition in my home back to the studs and found virtually no insulation anywhere. Star came out and gave me an estimate on Closed Cell Spray Foam Insulation and got me a price quickly and even was willing to work that price down to match a competitor I had quote the same work. Their scheduling process was quick and simple and even better yet, one of their foremen came back the following morning to make sure things were good and was happy to spot spray a couple areas that were a bit thinner than the rest near my windows and door framing. Room feels like a completely different space temperature and air wise. I am already planning to give them a call when I am ready to redo my finished basement. Thank you to the Star Team that helped us on our project.

The Neeco Crew 4 - JR, Juan and Ismael had worked the last day 2 days at our Scituate, MA home insulating the attic with duct sealing, propavent, added 6 inch fiberglass batting. They also took care of our attic door in our room over garage with 2 inch thermal barrier and the kneewall with 2 inch thermal barrier as well. Sealed gaps in the bedroom with dormers in the small closets. Crew 4 took care of adding a bath fan hose and a new attic stair cover. They also took care of the exterior doors with free weatherstripping. The energy savings are real even with our 15 year home we built. This crew was professional and experienced in this type of work. Very grateful for the work they did. I recommend them to any homeowner. This will save us $ during the winter and summer for sure. Greatly appreciated!

After the energy assessment gained from Mass Save, my partner and I decided to change some major home appliances like AC, water heaters, Inductions stove from them to reduce energy use. We got rebates and were grateful!

Paul Tavares did an amazing job throughout the entire project me……me and my husband were really impressed by not only his service, but by his knowledge and thoroughness….. Anytime we had a question or there was a concern throughout the entire project. He was always time when you go with his responses and help guide us through the entire process. We really appreciate having him on the team and can’t stop singing his praises. My husband is the one who actually told me to give him a shout out on your reviews.

I hired OnTime Insulation to spray the inside of my metal garage. They sprayed 2" of closed cell insulation. I received 3 quotes from 3 different insulation companies and they were all close in price. OnTime was the lowest estimate by about $150. They were pleasant, flexible, and did top quality work (see photos). I would highly recommend them and if I ever need insulation again in the future, I will call them first.

Marco and his team helped me in a pinch on short notice and accommodated a time sensitive insulation project. The guys who did the work, were kind and professional, and worked incredibly hard in unseasonably hot temps to get the job done. All while doing it, after there day had already been completed. The only constructive criticism I would provide is— initial communications via email were a bit ambiguous. While Marco and the team made it work, there were duplicative email threads that had different answers and when I was triple confirming date and them, there was no response and I had to call Marco directly. Ultimately, it worked out and I’m grateful for the team but it made the scheduling more stressful than it needed to be. Overall the work was great and the team too, insulation was done well and that’s what matters.

Stellar work from the start with the estimate and options: Marcos provided the best options and worked within my budget. Then came the crew who worked for 2 days, did a fantastic job, and cleaned up. I have had problems with contractors doing poor work and/or running with my money. You can trust OnTime insulation for a job well done.

Insul-Kings came out And evaluated my home for insulation. They helped enroll us into Mass Save program Which paid for 100% of the work for my 2 family home. The entire process took about a month, but they were able to get the work done in a few days. Have turning your head on we have definitely noticed a difference in our home. I highly recommend this company

Insul-Kings is wonderful to work with. They called in the morning to narrow the arrival time, which is very considerate. Nate and his crew arrived on time and CRANKED like a well oiled machine. I have a 4' crawl space. You can barely crouch. No problem! That's why God invented knee pads. They foamed and installed the insulation like it was their own home. It was a work of art. and came out better than I imagined. They patiently indulged my "old man" inquisitiveness. The crew represented Insul-Kings very well. I highly recommend them

We highly recommend Insul- Kings. We had an issue WITH ANOTHER COMPANY who installed our closed cell insulation in our attic. Chaz went above and beyond to answer a myriad of questions about the issues we had. He was kind,caring and knowledgeable. He provided critical safety information regarding the rework that the other company did not. We only wish we had hired Insul-Kings for the original installation.

I’d put off fixing a hole in our kitchen ceiling for months, assuming it would be a multi-day hassle with furniture to move and dust everywhere. I finally found Marcio and Flavio, and wow, what a great experience. They were responsive, insured, and incredibly easy to work with. I asked for quotes on Wednesday, signed on Friday, and by Monday night the job was done — plastered, painted, spotless, and perfect. No mess, no stress, just efficient, high-quality work. Highly recommend them for anyone looking for fast, professional results.

Absolutely amazing clean work. Had dozens of holes on my exterior walls and they made them disappear. Didn’t have to repaint the entire wall and matched multiple different colors to make it look like the wall wasn’t even touched. Would absolutely recommend

This is the third project Master Plastering has done for us. Fast, efficient, fairly-priced work. Reliable, on-time. Good clean-up. Professional communications. We would not hesitate to hire them again for plastering and paint work.

I was referred by my neighbor because I had issues finding someone reliable. The best decision that I have made in 2025 since I'm very picky about life itself. They were professional, on time, and friendly.

The job was exquisitely done, by extremely professional workers. I will definitely highly recommend this company, and will gladly support again

From start to finish truly professional service that deserves 6 stars to be honest.