Serving the Southcoast Since 1951

(508) 992-5770

Free Estimates

Mon-Fri: 8:00AM-5PM

Office Hours


A Weatherization Company Serving the Southcoast Since 1951

Performing high quality weatherization services designed to acheive optimal efficiency and performance to maximize results for residential and commercial customers.

Insulation for New & Existing Homes


Be sure to air seal when you insulate to create both a thermal and air barrier to prevent heat leakage and drafts.

Energy Audits

JM of New Bedford is a Mass Save Partner, providing complete home energy audits.


Let the experts at JM of New Bedford help you to identify and utlize energy efficiency upgrades from Mass Save and other Massachusetts rebate programs.

Since 1951

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.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.
"Customers place a lot of trust in people when they engage them to do work on their homes. It’s refreshing to work with someone who cares about what he is doing and wants to make sure things are done properly and to the customer’s satisfaction."
Elizabeth John
"I would like to express my appreciation and my many “thanks” to you and your company. Your workers who performed their duties at my home exemplified professionalism, care and diligence in their work ethics which speaks volume representing your company."
Gilberto Monteiro

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