Air Sealing

 

The Benefits

Many homes have drafts and air leaks caused by holes and gaps throughout the house, especially in the attic and basement. Leaking air can often account for up to 30 percent of a home’s heating and cooling costs and can sometimes be the equivalent of having a window open to the outside all year round.

Air sealing is the process of closing these gaps and holes before insulation is added. Sealing these drafty areas of the home before adding insulation can further increase the effectiveness of the thermal envelope. The home’s thermal envelope is the barrier that keeps heat inside during the winter and outside during the summer. It also keeps cool, air conditioned air inside your home during the hot months. The effectiveness of your home’s thermal envelope is affected by how much air is leaking out of the home and how much insulation is present in the attic and walls.

Think of insulation as a sweater and air sealing as a wind breaker. If you go outside in a sweater and the wind blows, you’ll still get cold because the air penetrates through the sweater. However, if you put a wind breaker over the sweater and the wind blows, you’re still comfortable because the wind breaker stops the air from penetrating through the sweater, letting the sweater keep you warm.

 

Available Rebates and Incentives

If during your home energy assessment it was recommended that you have drafty areas of your home sealed, targeted air sealing is available to you through the program at no-cost.

 

Next Steps

  • 1

    Sign and return the contract provided to you during your assessment. If you need a replacement contract, contact the Energy Specialist or Contractor that conducted your assessment.

  • 2

    The assigned Mass Save approved installation contractor will contact you to schedule your recommended improvements or if you’re working with a Home Performance Contractor, contact them to schedule your work.

  • 3

    After the work has been completed, we encourage you to request a quality assurance inspection by calling 1-866-527-SAVE (7283). This is offered at no cost to ensure your satisfaction.

Or, if you’d like to choose your own installation contractor:

  • 1

    Select an Independent Installation Contractor.

  • 2

    On your contract, list the selected contractor in the applicable area, then sign and return the contract. You will be contacted by your selected contractor to schedule the recommended work.

  • 3

    After the work has been completed, we encourage you to request a quality assurance inspection by calling 1-866-527-SAVE (7283). This is offered at no cost to ensure your satisfaction.