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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%
42 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

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

"The crew at Bullseye did a great job adding additional insulation to my attic space. They got my home back up to the proper Rvalue, they also added some vents to help with air flow. Very professional and clean up was great. Can't wait to see the savings on my heating and cooling bills!"
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

The primary reason that insulation saves you money over time is that it reduces your energy bills by making your home more energy efficient. A crucial part of an insulation system is a properly installed vapor barrier. Local building codes dictate whether your insulation requires a vapor barrier based on the type installed. While some high-quality wool insulation may not technically need a vapor barrier, most municipalities still require one to meet code.

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

You won’t find anything inside a cupola on a house because it’s hollow (think of an upside-down cup), allowing air to ventilate out of a roof via vents and light to come in via windows. They also usually have a base, vents around the middle (usually louvers), and a pointed cap at the top.

Mineral wool has an excellent life expectancy of up to 50 years, provided it's kept dry and free of pests. Compared to fiberglass, with a life span of 20 to 30 years, mineral wool stacks up well for long-term cost savings. Sheep wool maintains a similar life span to fiberglass, while estimates for hemp wool insulation life expectancies are all over the board, ranging anywhere from 20 to 100 years.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: 

  • If the insulation is over 15 years old

  • If the insulation is wet or moldy

  • If it is vermiculite insulation

  • If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

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.