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Top-Rated Insulation pros in Mifflintown - Updated Nov 2026

Avatar for LG Investment Group dba Draft Stoppers
LG Investment Group dba Draft Stoppers
4.4(
7
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Mifflintown, PA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

Draft Stoppers Insulation is your local insulation expert in Central PA!! We have over 20 years experience in the insulation business. We are locally owned, not a national franchise like most of our competitors. So, whether it's residential or commercial, we treat every customer like family. That means you will receive top-notch quality, service and fair prices. \n\nDraft Stoppers uses only the best quality products to complete quality installations including insulation removal, insulation replacement, fiberglass and cellulose blown-in insulation, fiberglass batt, spray foam, polystyrene foam board, and air sealing services. \n\nContact us today to get your FREE estimate.

Cathedral Ceiling
Cathedral Ceiling
Bedroom before
Bedroom
Response time1 day
Response rate88%
46 neighbors recently requested a quote
Avatar for Iron Valley Spray Foam LLC
Iron Valley Spray Foam LLC
5.0(
1
)
Spray Foam Insulation - Install

Serving Mifflintown, PA and surrounding areas

Approved

Free estimates

Offers commercial services

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. \nYou will find us to be competitively priced with close attention to the details. \nOur reputation is based on service, safety, and quality, regardless of how large or small the job. \nWe look forward to building a lasting relationship and guarantee your satisfaction! \n

1 neighbors recently requested a quote
Avatar for Air-Tight, LLC
Air-Tight, LLC
4.7(
16
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Mifflintown, PA and surrounding areas

In business since 2008

"I contacted six companies for estimates to remove attic insulation, air seal and sanitize the attic, and blow in new insulation to R49 specs. Air-Tight's estimate was in the middle of the pack. Justin Wolfe, owner and CEO of Air-Tight LLC, gave me an estimate over the phone, answered every one of my follow up questions, and scheduled my work within the week. He stopped by at the beginning and end of the job. The crew did exactly what he said theyâ d do and were very mindful of my property. My neighbors commented on how nice they left the area. He even sealed an area under my steps and at the back of my home where Iâ d seen chipmunks enter and had an opportunity to sell more work when I asked him to check the attic above my garage but said I didnâ t need it and stayed with his original estimate. I recommend Air-Tight LLC without hesitation and am thankful I chose them."
BONUS ROOM ABOVE GARAGE
FULL CUT 2X4 INSULATION
VAULTED CEILNG
VAULTED CEILING
SLOPED CEILING

+2

Response time4 days
Recommended by93%of homeowners
Avatar for Bullseye Garage Doors
Bullseye Garage Doors
5.0(
9
)
Blown-In Insulation - Install or Upgrade

Serving Mifflintown, PA and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"Had a great experience oz explained everything and was very helpful with any questions I asked.. Cody was also helpful they had great team work .. we had them insulting our attic and they were great with cleaning up and my house even looked better after they left. I can?t wait to see how much we are going to be saving in the future.. thanks again guys"
Outside of Door
Fully Opened
Finished Product!
Duct Protection
Finished Product

+5

Response time1 day
Avatar for Mavrix Construction LLC
Mavrix Construction LLC
5.0(
3
)
Spray Foam Insulation - Install

Serving Mifflintown, PA and surrounding areas

Free estimates

Small jobs welcome

Credit card accepted

At Mavrix Construction, we believe hiring a contractor should be stress-free. We specialize in professional spray foam insulation across Pennsylvania, managing every detail of your project from first call to final walkthrough.\n\nWe answer our phones. We show up when we say we will. We communicate every step of the way. And we don't consider a job finished until you're satisfied.\n\nOur commitment is simple — competitive pricing, quality work, and the kind of customer service that's rare in the trades industry.\n\nWhen you choose Mavrix, you're choosing a team that treats your property like our own.

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Avatar for Spray Foam Genie of Central PA
Spray Foam Genie of Central PA
4.8(
4
)
Spray Foam Insulation - Install

Serving Mifflintown, PA and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Spray Foam Geni went over and beyond our expectations. Our project involved tearing out nasty pink rolled insulation before any spray foam could be applied. Several contractors looked at the project, but most werenâ t interested in the extra prep work. We asked a lot of questions and Stephen Mills, the general manager, answered all of them. It was hot in the building, but the crew never complained. When finished, they cleaned up thoroughly. We are so happy with Spray Foam Genie and their team. Itâ s now a pleasure to work in the building. Itâ s fresh and comfortable. Thank you for a great job. As for the PRICE, QUALITY, SERVICE and SCHEDULE itâ s an A++++ all the way!"
Closed Cell Foam Applied to a Metal Shop
Attic Decking Applied
New Walls and Attic
New Walls and Attic
Rig

+3

Response time3 days
Response rate100%
Recommended by75%of homeowners
Showing 1-10 of 22
Insulation FAQs, answered by experts

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

Your house may be cold even if the heat is on because of bad insulation, gaps in doors, small holes pulling hot air from the home, or excess humidity. The heater itself might be malfunctioning. For this problem, you’d need to talk to an HVAC pro. If you have a gas heating system (most do) this should be considered an urgent job as natural gas could be leaking in your home.

Monolithic slabs don’t require insulation, but many homeowners choose to have their contractors install insulation under the slab during construction. This can help improve home efficiency even more and keep indoor temperatures more stable. Slab foundations are more energy-efficient than uninsulated crawl spaces and basements, and insulated slab foundations are more energy-efficient than insulated crawl spaces and basements.

Air duct insulation typically lasts for 10 to 15 years or even longer, depending on the material and maintenance. It's important to conduct periodic inspections to check for signs of deterioration, such as water damage, tears, or general wear. If you find any of these issues, it may be time for repairs or a full replacement. You might also consider upgrading your insulation even if it's in good shape to improve your home's energy efficiency and enhance your HVAC system's performance with newer, more effective materials.

Insulating your basement walls offers numerous advantages that make the project well worth it. By adding insulation, you can reduce the chances of moisture damage to the house's structure and lower the odds of mold growth. You'll also add comfort to the space by reducing temperature swings and increasing your home's energy efficiency, potentially reducing your energy bills to earn your investment back.

The Mifflintown, PA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.