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Professional Air Sealing Services in Central Pennsylvania

Along with adding or upgrading your insulation, air sealing is one of the most important things you can do to improve your home's comfort, health, and energy efficiency and is most often overlooked by homeowners and contractors.

 

If your home feels drafty, unevenly heated, or expensive to keep comfortable, the problem may not be your insulation—it may be air leakage. At Draft Stoppers, we provide professional air sealing services in Central Pennsylvania to help homeowners stop energy loss, improve comfort, and reduce heating and cooling costs year-round.

 

We proudly serve homeowners across Mifflin County, Juniata County, Perry County, Snyder County, Union County, Centre County, Dauphin County, Cumberland County, Huntingdon County, Franklin County, Fulton County, and Blair County, including communities like Lewistown, Burnham, Reedsville, Mifflintown, Port Royal, Newport, Millerstown, Selinsgrove, Shamokin Dam, Lewisburg, State College, Bellefonte, Harrisburg, Camp Hill, Mechanicsburg, Altoona, and surrounding areas.

What Exactly is Air Sealing?

 

Air sealing is the process of finding and sealing all the little holes, gaps, and seams in your attic floor and ceiling, around windows & doors, and any other air intrusion areas. A properly sealed home will allow less unconditioned air(cold) to meet conditioned air(hot) preventing condensation and improved conditions allowing warmer temperatures in the winter and cooler temperatures in the summer.

 

Even small leaks can add up to major energy loss. According to energy studies, uncontrolled air leakage can account for 20-40% of a home's heating & cooling costs.

 

Air sealing can help with overall air quality in your home and make it an overall healthier place to live--in your home.

 

Air sealing has many benefits—but it’s also highly technical, specialized work, and it takes place in some hard-to-reach parts of your home. So you’ll get the best, most effective results when it’s performed by an experienced professional.

 

Our Air Sealing Process

 At Draft Stoppers, we don’t guess—we diagnose. Our professional air sealing process includes:

 

 1. Home Assessment & Leak Detection

 

We inspect your home for common leakage points. When needed, we use blower door testing and building science techniques to pinpoint problem areas.

 

 2. Targeted Sealing

 

 We use high-performance materials such as:

 

 One- and two-part spray foam

 Fire-rated sealants

 Weatherstripping

 Rigid blocking materials

 

Each material is selected for the specific application to ensure durability and safety.

 

3. Verification & Quality Control

 

After sealing, we verify improvements and ensure all work meets best practices for energy efficiency and building performance.

 

Why Choose Draft Stoppers?

 

 We are a locally owned and operated company specializing in air sealing, insulation, and whole-home energy efficiency solutions across Central Pennsylvania.

 

 

✔ Experienced professionals

 

✔ Building-science-based approach

 

✔ Fully licensed and insured

 

✔ Honest recommendations

 

✔ Local knowledge of PA homes and climate

 

 

From historic homes in Lewistown to newer builds in State College and Mechanicsburg, we understand how Central PA homes are built—and how to make them perform better.

 

 

 

Air Sealing + Insulation = Maximum Results

 

 

Air sealing works best when paired with proper insulation. Many homeowners mistakenly add insulation without addressing air leaks, which reduces its effectiveness.

 

 

Draft Stoppers offers:

  • Attic air sealing and insulation upgrades

  • Dense-pack wall insulation

  • Blown-in fiberglass and cellulose

  • Spray foam insulation

  • Crawl space and basement sealing

 

 

We design complete solutions—not band-aids.

 

 

Serving Central Pennsylvania

 

 

We proudly serve homeowners throughout:

 

Mifflin County: Lewistown, Burnham, Reedsville

 

Juniata County: Mifflintown, Port Royal

 

Perry County: Newport, Millerstown

 

Snyder County: Selinsgrove, Shamokin Dam

 

Union County: Lewisburg, Mifflinburg

 

Centre County: State College, Bellefonte

 

Dauphin County: Harrisburg, Hershey

 

Cumberland County: Mechanicsburg, Camp Hill

 

Huntingdon, Franklin, and Fulton Counties and beyond

 

 

If you’re unsure whether you’re in our service area—just ask!

Yes...it's definately worth it

 

  1. HEALTHIER, MORE EFFICIENT HOME-Provides for an overall healthier, more comfortable, more energy efficient home. You will notice less draft with less overall air movement immediately.

  2. COST vs BENEFITS-The cost to air seal your entire home is the best $500 or less you can spend towards a more comfortable home. And whenever you upgrade your attic insulation alongside it, you will notice a large difference in comfort and energy savings immediately.

  3. REDUCED CONDENSATION-An airtight seal can prevent moisture and condensation thus reducing the chance of getting mold, mildew, and bacteria to grow which results in better air quality inside your home.