Serving Lake Harmony, PA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"They arrived at 8 am but the insulation did not arrive until 5pm. The project had to be finished two days later."
Serving Lake Harmony, 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 Lake Harmony, PA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Attis did an awesome job replacing the insulation in my attic crawl space and would definitely recommend them for any insulation needs!"
+6
Serving Lake Harmony, PA and surrounding areas
Approved
In business since 1989
Free estimates
Credit card accepted
"He was very very good! He was very prompt, and I would use him again."
Serving Lake Harmony, PA and surrounding areas
Approved
In business since 2020
Free estimates
Small jobs welcome
"My husband and I were very impressed with AMJ Construction. Anthony and his helpers took their time with removing the old doors, replacing it with the new one. They were meticulous about the work being done. The helpers were respectful and answered any questions we may of had. By the end of the job the work area was immaculate. Anthony’s assistant Tracy at the office was patient and very pleasant to work with. We will definitely hire AMJ Construction again for another project."
+17
Serving Lake Harmony, PA and surrounding areas
In business since 2021
Free estimates
Credit card accepted
"Very good. They responded quickly and gave me a quote. They did a great job expediting the work. Their workers were on time and courteous and did a great job. I would recommend them to anyone who needs old insulation replaced with spray foam insulation"
Serving Lake Harmony, PA and surrounding areas
In business since 2018
Free estimates
Warranties offered
"I am remodeling my entire home from the foundation up and out of all the jobs I have hired out F.B.I. was by far my best investment. The quality of the work is outstanding, the customer service was amazing (I had a ton of questions about every aspect of the spray foam and they were very patient with me), and to top it off their price was the best around. My husband and I noticed how much better the house was holding heat the day they left. Amazing work. Next year when I put my Addition on I will be hiring them again."
+18
Serving Lake Harmony, PA and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"Jimmy was very knowledgeable and patient in explaining what was needed in our crawl space. He tore all wet / moldy insulation ,replaced all rotten beams, installed the humidifier and did the entire encapsulation. He came on a weekend to meet with to explain the processes in person. ( we live out of state ) We Highly recommend this company."
+12
Serving Lake Harmony, PA and surrounding areas
In business since 2001
Free estimates
Credit card accepted
"Before selling my house, I wanted to upgrade the insulation in the crawl space. A fine job was done in installing & pest control. I found it a bit pricey. And I’m still waiting for a copy of the receipt. But good work."
+2
Serving Lake Harmony, PA and surrounding areas
In business since 2022
Free estimates
Credit card accepted
HomeStar Insulation Inc., is your go to team of professionals for all of your needs. We work tirelessly to meet and exceed your expectations and constantly strive for perfection. Give us a call today and let's get started!\n
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.
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