• 15121 Marlboro Pike, Upper Marlboro, MD 20772
    260 East Boulevard North Hagerstown, MD 21740
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Whole-House Air Sealing in Maryland & Washington, DC

Are your energy bills higher than normal? Is it drafty and uncomfortable in your home? You may need to seal air leaks.

Accurate Insulation offers whole-house air sealing in Upper Marlboro and Hagerstown, MD, and the Washington, DC, metro area. Sealing is an effective way to reduce energy consumption by reducing air leakage in homes.

Get a Free Insulation Estimate from Accurate Insulation in Maryland!

What Is the Air Sealing Process?

Technician setting up a red blower door in a home's front doorway.Air leakage, or infiltration, is outside air that enters a house through cracks and openings.

The recommended strategy in both new and old homes is to reduce air leakage as much as possible and provide controlled ventilation as needed.

Air sealing involves using a blower door, which includes a fan that pulls air out of the house and allows outside air to flow in through unsealed cracks and openings.

With smoke pencils, our mechanics can find these leaks and seal them. This helps homeowners reduce energy consumption and prevent moisture condensation problems, uncomfortable drafts and uneven heating or cooling.

What Are the Biggest Sources of Energy Loss?

Although windows, doors and outside walls contribute to air leakage, the biggest holes are usually hidden and connect the house to the attic, crawl space or basement.

The key is to identify these areas during the design process, assign responsibility for sealing holes and check to make sure the air sealing was done effectively. Usually, all big holes are sealed first, then the large cracks and penetrations and, finally, the smaller cracks and seams.

Infographic showing where warm air escapes from a home and where cold air gets in.

What Are the Benefits of Air Sealing?

Air infiltration can account for 30% or more of a home’s heating and cooling costs and contribute to problems such as:

  • Moisture infiltration
  • Mold and mildew development
  • Infiltration of dust, pollen and other debris
  • And more

Reducing infiltration can help significantly cut annual heating and cooling costs, improve interior comfort and contribute to a healthier indoor environment.

Schedule Whole-House Air Sealing Services for Homes & Businesses in Maryland & Washington, DC

Accurate Insulation offers BPI energy auditing and whole-home air sealing in Washington, DC, and surrounding areas in Maryland, including Frederick, Baltimore, and Annapolis.

We want to help you make your home as energy-efficient and comfortable as possible.

Contact us to learn more about our air sealing and insulation services or schedule a home inspection.

Products We Install

Our insulation team adds energy efficiency, comfort & value to homes & buildings.

Spray Foam

Accurate Insulation is proud to be a leading installer of spray foam insulation.


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

Radiant Barrier

We can help keep your home cooler and more comfortable with an attic radiant barrier.

Garage Doors

When you turn to Accurate Insulation for garage doors, you work with a great team.


No matter your gutter needs, the Accurate Insulation team has you covered.


Accurate Insulation is proud to be a leading supplier of quality window blinds.

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