Serving the Southcoast Since 1951

(508) 992-5770

Free Estimates

Mon-Fri: 8:00AM-5PM

Office Hours


Over 70 of Years Serving the Southcoast

Welcome to the JM of New Bedford Family

Elwell Perry, Jr., Elwell Perry, Sr., Matt Perry
Our family started in the insulation business in 1951 when Elwell Perry Sr. founded Insulation Inc.; a company specializing in re-insulating homes with fireproof mineral wool. Also known as “rockwool,” this product is made from recycled steel slag, and is the only fireproof non-moisture absorbing, heavy density loose fill insulation. We use a variant of it today made by Amerrock and it continues to be the best choice for new and existing homes.

Mr. Perry managed the company for thirty-five years, always striving to perform high quality services that achieved the maximum results for his customers at a fair price. Since his retirement in 1987, Elwell Perry Jr. has been providing the same level of quality and value for which the company has come to be known. In the spring of 2010, JM of New Bedford welcomed Matthew Perry, the third generation. Over the years, our services have expanded to include residential and commercial roofing, new home insulation, and most recently air sealing and energy audits, all with the same quality, care and expertise.



Workers Compensation


General Liability




Massachusetts certified home improvement contractor (HIC)
BPI Certified in Building Analyst
BPI Certified in Home Envelope
Nstar & National Grid Certified Contractor
EPA Lead-Safe Certified Firm
EPA Lead-Safe Certified Contractor
Licensed Construction Supervisor

Service Area

Serving Southeastern Massachusetts, Greater Boston, Cape Cod and Rhode Island.

"Your team is made up of kind, professional, friendly and knowledgeable men who went the extra mile. They were here on time, explained everything that they were going to do and did it all and more to a high quality that I have raved about ever since."
Mary Jane Cayer
"I wanted to send a note of thanks and appreciation to you and your crew. True to your word the work men arrived prompt and prepared. Your crew were polite and accomodating. The supervisor, Amaro was especially considerate of my 1830 historic house and treated the siding with care."
Marie L. Sullivan

We provide FREE estimates and no project is too small.


Call Today

(508) 992-5770


423 Coggeshall St. New Bedford, MA


Monday-Friday 8am-5pm

Serving Southeastern, MA, Greater Boston & Cape Cod