Why Detecting Air Leaks Is Key to Saving on Energy Expenses

Why Detecting Air Leaks Is Key to Saving on Energy Expenses

With another unpredictable winter heading toward the Monmouth County area, you’re no doubt preparing your home for the cold season. Winter is the time of year when you most notice just how drafty your home is, especially around doors and windows.

Many hidden leaks are major sources of wasted energy, significantly increasing your heating bills. Here are a few tips for detecting air leaks in your home.


  • Check for any signs of daylight entering your basement, especially around the foundation.
  • Thoroughly check all windows, interior and exit doors by wetting your finger and holding it near the edges. Simple, yet effective.
  • Inspect the floor and ceiling for cracks where they meet the walls.
  • Check for gaps around all pipes or vents to the outside and where they enter the upstairs.


  • Check for cracks on all exterior corners and where the foundation meets the exterior.
  • Look for gaps where outdoor water faucets, pipes or vents enter the home.
  • Inspect corners where the exterior and chimneys meet.
  • Check for cracked or missing caulking around windows and check exterior door seals.


  • Caulk all windows and apply weatherstripping to all interior and exterior doors.
  • Carefully inspect (turn off the power) behind all electrical outlets and switch plates for loose or missing insulation.
  • Check the seals around any wall- or window-mounted air conditioners, kitchen and bathroom vents and fans and the clothes dryer vent connection to outdoors.


  • Add weatherstripping to the access door or hatch.
  • Check for compressed or missing insulation under the eaves and around chimneys.

Locating every hidden leak on your own can be impossible, so after you’ve dealt with all the air leaks you can find, schedule a home energy evaluation with your local HVAC contractor that includes a blower door test. A blower door test will depressurize your home, detecting air leaks and insulation gaps in locations you may have never thought to check.

For more expert advice on detecting air leaks in your home or for any home comfort issue, please contact Aggressive Mechanical Contractors. We have been serving the Monmouth area for more than 40 years.

Our goal is to help educate our customers in Monmouth County, New Jersey and surrounding areas about energy and home comfort issues (specific to HVAC systems).

Credit/Copyright Attribution: “dny3d/Shutterstock”

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