AirSealing is the critical first step in reducing energy usage in a building. 

Plumbing and electrical penetrations through the home envelope allow conditioned interior air (heated or air conditioned) and unconditioned exterior air to flow in and out of your home. 

In addition, the top plates of every wall that intersects with the attic must be sealed as well. 

Read what the Boston Globe's Rob Robillard has to say in this 3/1/15 column 

Contact us today for help with airsealing in Concord and surrounding towns.

Rim Joist

The rim joist is the entry point for most winter time air leaks into the house (the blue arrows at the bottom of the house in the "common air leaks" picture to the left)

Warm air leaks out through the attic; cold air leaks in through the rim joist.  Watch the video for our solution.

Sealing Recessed Light

Sealing Chimney Chase

Seal up the gaps...seal in the savings

Sealing Wall Caps

Attic Stairs

AirSealing and insulating the attic access, either a pull down stair or an actual staircase, is one of the most important steps in improving the energy efficiency of your home. The picture below shows an insulated pull down staircase, a storage shelf and R49 cellulose insulation.

Video of finding and sealing wall caps