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Best insulation pros near Dallastown, PA

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TRUSTED BY DALLASTOWN, PA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon56
    Verified insulation services reviews

Top-Rated Insulation pros in Dallastown - Updated Nov 2026

Avatar for Q Insulation Contractors, Inc.
Q Insulation Contractors, Inc.
4.8(
25
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Dallastown, PA and surrounding areas

In business since 2020

Free estimates

"Courteous, diligent, professional and fair priced. Without reservation I would highly recommend Q-insulation. They installed rock wool insulation in all the ceilings and on the vertical attic walls in our historic brick victorian. They were prompt, on time and treated my home like it was their own. Thank you Valeria and the crew."
Response time2 days
Recommended by92%of homeowners
Superior Insulation
4.9(
68
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Dallastown, PA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"The gentlemen from Superior Insulation discovered a missing piece of duct work that was causing air from the cold air return of our geothermal heating unit to be pulling air from the unconditioned attic space above our second floor bedrooms.  My husband installed the duct work.
They put blown in insulation above our family room, above our second floor bedrooms and on top of duct work inside knee walls running the length of the house and also did spray foam insulation around some small doors into knee walls.
The work done by Superior Insulation decreased our energy usage by 40%.
We would recommend Superior Insulation to anyone.
"
Recommended by95%of homeowners
Avatar for Insulation Geniuses
Insulation Geniuses
4.6(
9
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Dallastown, PA and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"All punctual, polite, professionals, hard working, amicable, Alfredo Sotto was our installer and his crew member Ernie did an exemplary, and they were really neat. The co-owner Jeff who personally came to our house was informative. Phil gave the initial presentation on Monday May 8 he was very detailed and very convincing."
Another Happy Homeowner!
Aeroshield NASA Grade Insulation
Energy Star Attic Seal Process
Gable Attic Fan - SOLAR POWERED!  Runs for FREE and 25 Year Warranty!
AeroShield Installed over Blown-In gives you the right protection forever with it's LIFETIME Warranty!

+37

Recommended by88%of homeowners
Windsor Insulation, LLC
5.0(
3
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Dallastown, PA and surrounding areas

In business since 2023

Free estimates

Small jobs welcome

"I recently needed attic insulation installed; I reached out to several companies for quotes. Dallas came out right away and gave me a complete honest rundown on my issues. I had just purchased this home only to understand my situation was dire, he gave me a great price and even offered to change his schedule to get this project done quickly. He showed up within just a few days and did an incredible job, his team is very professional and even installed a new bath fan i needed. Thank You Windsor Insulation company, my house is noticeably warmer and I couldn't be happier. Great Job and I recommend Windsor Insulation 100%"
After Photo 1
After Photo 2
Before Photo 1
Before Photo 2
Before Photo 2

+7

Response time1 day
Recommended by33%of homeowners
Avatar for Bullseye Garage Doors
Bullseye Garage Doors
5.0(
9
)
Blown-In Insulation - Install or Upgrade

Serving Dallastown, 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 Dallastown, 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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Insulation FAQs, answered by experts

Whether plaster walls should be insulated depends on whether the walls are at particular risk of moisture problems. In many cases, you can insulate plaster walls, while in others, it's a poor decision because of the lack of a vapor barrier. Choose a reputable insulation contractor to help you decide if and how to proceed to increase your home's energy efficiency.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

While insulation is required for all exterior walls in a house, it is not typically required for interior walls. Local and state building codes mandate that new construction homes have adequate insulation in exterior walls and ceilings to suit the local climate.

However, there are several benefits to adding insulation to interior walls. It is excellent for sound-dampening between rooms and can help with temperature control by maintaining a regulated temperature in specific rooms and lowering heat transfer between adjacent areas. Insulating interior walls can also contribute to the overall energy efficiency of your home.

How to dispose of insulation depends on a few factors, including the condition of the material. While you can simply bag up and throw away many kinds of insulation, some municipalities offer recycling, so it's worth checking with yours. If there are contaminants such as asbestos in your insulation, abatement and specialized disposal are often necessary.

Garden blankets and frost cloths are the best things to use to protect trees and plants from frost. They are made from polypropylene fabric, which is lightweight, breathable, and dries fast. If you can’t get garden blankets or frost cloths before the freeze, you should use lightweight blankets, sheets, or towels.

The Dallastown, PA homeowners’ guide to insulation services

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