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Does My Home Need Air Sealing?

air sealing the space between the ceiling and wallProper air sealing is critical to your comfort and your home’s energy efficiency and indoor air quality.

Air leaks through poorly insulated walls, drafty windows and doors, or openings made for pipes, wires or other services can let heated or cooled air escape while letting unconditioned outdoor air and pollutants inside.

Locating Air Leaks in Your Home

A professional energy audit is the best way to find air leaks and areas with inadequate insulation in your home, using tools like blower door tests and thermal imaging.

You can also find some air leaks yourself, however, by using a candle or an incense stick on a windy day and checking near doors, windows and other openings for erratic flame or smoke movements.

Common air leaks in a home include:

  • Drafty windows and doors
  • Poorly sealed openings for pipes and wires in exterior walls
  • Dryer vents and exhaust fan openings
  • Holes drilled for pipes and wires in the attic
  • Chimney and flue openings in the attic
  • Poorly insulated walls, ceilings and floors
  • Poorly insulated attic floors, rafter cavities and partition cavities
  • Soffits for recessed lighting
  • Outlet and light switch openings

If your home has multiple small leaks, it can have an effect similar to leaving a window open while using the heater or air conditioner. Properly sealing these leaks can significantly reduce your heating and cooling costs.

How To Seal Air Leaks Yourself

Many smaller, obvious air leaks can be sealed yourself with simple tools. Here are a few tips to get started:

  • Use weatherstripping to seal drafty doors and windows
  • Use caulk to seal around door or window trims
  • Use caulk to seal small openings around pipes or wires in the attic and exterior walls
  • For larger openings, use a combination of foam and caulk
  • Install door sweeps to seal the bottom of doors
  • Install foam gaskets behind outlet and switch covers

For more thorough air sealing, consider hiring a professional. They have the tools and equipment to find hidden air leaks and seal them properly, including those in potentially dangerous areas, such as around recessed lighting, flues or chimneys.

Air Sealing Services in Sacramento, CA

At Gold Star Insulation, we can help you find potential air leaks with an energy audit and seal them using the best tools and techniques for the situation. We offer affordable, reliable air sealing and insulation services throughout the Sacramento area.

Contact us today at 916-229-8445 for an appointment!

Where should you insulate in your home? Check out our interactive infographic:

Products We Install
Energy Audits

Our team can help you save money with a home energy audit and air sealing services.


Our insulation team installs batt and blown-in fiberglass insulation.


Environmentally friendly and effective, cellulose works well in homes and buildings.

Spray Foam

Gold Star Insulation is a leading installer of spray foam insulation in the Sacramento area.

Radiant Barrier

An attic radiant barrier can help keep your home cooler and more comfortable.

Insulation Removal

Gold Star Insulation provides home insulation removal services.

Air Sealing

We are committed to saving you money by sealing your attic—which is the main source of air leaks in the home.

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