
Serving Hummelstown, PA and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"Koala insulation workers are efficient, clean and professional!"

*The Angi rating for Insulation Service companies in Hummelstown, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Hummelstown, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on August 31, 2026

Serving Hummelstown, PA and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"Koala insulation workers are efficient, clean and professional!"

Serving Hummelstown, PA and surrounding areas
Approved
Super Service Award Winner
In business since 2007
Free estimates
Small jobs welcome
"My house is performing much better since the insulation. They handled all the rebate paperwork for us."





+6

Serving Hummelstown, PA and surrounding areas
Approved (Corporate)
In business since 2023
Free estimates
Warranties offered
"We are extremely satisfied with the whole process of our house being insulated. First we had the walls done, and then a couple weeks later we had our attic insulated. The crew were so nice, friendly, and knowledgeable. We are very satisfied with everything. Thank you, everyone."





Serving Hummelstown, PA and surrounding areas
Approved
Super Service Award Winner
In business since 2004
Free estimates
Warranties offered
"Joe and jason were very professional and made sure to clean everything perfectly while doing my attic insulation, I will be recommending them to everyone!"





+88

Serving Hummelstown, 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
Serving Hummelstown, PA and surrounding areas
Approved
In business since 2003
Free estimates
Credit card accepted
Keystone Enviro-Systems is a small family owned business. We specialize in cellulose and fiberglass insulation. We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!
Serving Hummelstown, PA and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"We are finishing our basement. We put up framing, insulation and paneling only to discover we had a condensation problem. We contacted a locally well known water damage and restoration company. After waiting two weeks, they called to tell us they were not interested in working with us. During these few weeks, we tore down the paneling and insulation. We contacted Superior Insulation after noticing their great reviews here on Angie's List. We talked to Rick who gave us an idea of what the solution was and set up an appointment to view the problem area. Once he saw the problem area, he decided on a slightly different solution. Contract signed 3/18/15. Work completed by Rick and Jim 3/30/15. They were very professional, thorough and nice to deal with. We are very happy with what they did.
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Serving Hummelstown, PA and surrounding areas
In business since 2008
"Had them blow insulation in my attic. Great price, completed it in a timely fashion, and did a great job cleaning up. All employees I dealt with were very friendly. Highly recommend."





+2
Serving Hummelstown, 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%"





+7

Serving Hummelstown, PA and surrounding areas
In business since 2001
Free estimates
Credit card accepted
"Excellent experience, who knew Orkin did insulation!"





+2
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