4.5 
199 *The Angi rating for Insulation Service companies in Olney, MD 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 Olney, MD 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 October 16, 2025
Serving Olney, MD and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Founders Insulation did a very good job on installing insulation in ceilings! They were careful, courteous and cleaned up."
+11
Serving Olney, MD and surrounding areas
Approved
In business since 2023
Free estimates
Warranties offered
"Ryan and Jasper were both very professional. The insulation job was performed over two days, and the team did a great job! I have already planned to hire KOALA again for the next rehab!"
+9
Serving Olney, MD and surrounding areas
Approved
In business since 2023
Free estimates
Warranties offered
"Very prompt. Gave us a great price and did a wonderful job installing insulation in a tight area. Would definitely hire him again."
Serving Olney, MD and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Great! Job was complete .... removal of existing 50+ year old insulation, air sealing attic, baffle installation, installed 18 inches new fiberglass blown insulation, and new whole-house fan. Job started and completed as proposed. Crew on-time, quietly performed their work, and left spaces clean when done. Definitely worth the cost as noticeable improvement in second floor temperature and humidity readings."
+1
Serving Olney, MD 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 Olney, MD and surrounding areas
Approved
In business since 2002
Free estimates
Warranties offered
"The company did an assessment that we did not need as much insulation as we thought. The gave us a better approach which was cheaper and more efficient."
+93
Serving Olney, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2004
Free estimates
Emergency services offered
"Leo, the insulation job was superb, the crew was very professional."
+73
Serving Olney, MD and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"Our first interaction with Atlas was with Shannon. As knowledgeable and personable as one could hope for. She clearly explained cost effective measures to better insulate our house. We opted for sealing and insulating our attic and weather stripping a number of doors. We were very pleased with the workmanship and the energy savings they produced. They also helped us get a PEPCO credit which reduced the overall cost of the job. A winner!"
+11
Serving Olney, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Credit card accepted
"Brian and his team is good in his work. He communicate well. Mark is well experienced person working in the team. I would recommend Mark for home insulation work."
+5
Serving Olney, MD and surrounding areas
Approved
Free estimates
Credit card accepted
"We had Xanvria remove the old insulation in our attic, air seal the attic, and install new R-49 batts. They did a really good job, were professional, and explained what they were doing along the way. Everything came out clean and we?re very happy with the work. I would definitely recommend them."
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