Serving the Southcoast Since 1951

(508) 992-5770

Free Estimates

Mon-Fri: 8:00AM-5PM

Office Hours


Air Sealing

Your heated air could be leaking out through the cracks in your home. Be sure to air seal when you insulate to create both a thermal and air barrier to prevent heat leakage and drafts. Cold air coming in through the lower part of your home drives heated air out the top of your home.

Common Sources of Air Leaks

  • Plumbing
  • Electrical Wires
  • Top plates
  • Bottom Plates
  • Band joist
  • Light fixtures
  • Attic Hatches
  • Pull down stairs
  • Windows
  • Doors
  • Kneewall openings
  • Chimneys
  • Pipes
  • Foundation Cracks

Seal up your home to prevent drafts and heat loss

The dirt on the batt shows where air leakage occurs. Air escapes where ever two pieces of wood meet.
By foaming these cracks the air infiltration rate will diminish. Insulation is still needed to reduce heat loss.

Air Sealing Includes:

Foaming around pipes, wires, top plates and any other attic penetrations. Weather striping and insulating around doors, hatches, attic openings etc. Conducting a blower door test before and after air sealing to check air infiltration rates. Airsealing can be customized further to your home’s needs.

Air Sealing is an important step in making your home more energy efficient. Air sealing works with insulation in creating a full enclosed envelope around the conditioned air spaces in your home. Call us today for us to come and check your air infiltration rate.

Insulation Options

Attic Insulation

JM of New Bedord Co. has been insulating thousands of houses since 1951 and those that just insulated their attics saved on average 30%

Wall Insulation

Side wall insulation is not only good for reducing your energy bills, but it will also make you more comfortable in your home.

Basement / Crawl Space

Basement ceiling insulation is important to keep cold air out and floors warm on first floor. Many drafts enter a home through its basement.

Insultation Certifications

Massachusetts Certified Home Improvement Contractor (HIC) | Licensed | Construction Supervisor (Unrestricted) | BPI Certified | Nstar & National | Grid Certified Contractor through Masssave | EPA Lead-Safe Certified Firm | EPA Lead-Safe Certified Contractor

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