4.5 
169 *The Angi rating for Insulation Service companies in Kensington, 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 Kensington, 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 March 30, 2026
Serving Kensington, MD and surrounding areas
Approved
In business since 2002
Free estimates
Warranties offered
"Outstanding work insulating both my basement and attic. If I ever again have the misfortune of needing to insulate anywhere in my home, I will reach out to Prudent Homes. Honest, reliable and technically competent."
Serving Kensington, 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 Kensington, MD and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"Highly recommend. Exceptional and professional service from their contractors and most especially by Nolan Walker (Performance Consultant). Nolan showed photos taken of my home's ductwork and insulation and provided a list of options and the cost of each project so that I could make a well informed choice of which projects to pursue. He took his time and was honest and understanding - not aggressive like other companies I have dealt with. His test-out and follow-up appointment was just as thorough. It was a pleasure working with him."
+16
Serving Kensington, MD and surrounding areas
Approved
In business since 2025
Free estimates
Warranties offered
Here at Koala Insulation of Washington DC, we pride ourselves on our professionalism, as well as our ability to complete every job to the homeowner's total satisfaction. We never leave a job unfinished, or a homeowner not 100% satisfied with our level of service. We handle insulation work in Washington DC and the surrounding areas - Call today!\n\n
Serving Kensington, 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 Kensington, 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 Kensington, 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 Kensington, 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 Kensington, 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 Kensington, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Credit card accepted
"They replaced our insulation while we were redoing the roof."
+5
From average costs to expert advice, get all the answers you need to get your job done.
Insulating your attic can improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you in Washington, DC.
New insulation makes your home more comfortable and boosts energy efficiency. Use this guide to budget for insulation installation costs in Washington, D.C.
The cost of blown-in insulation in Washington, D.C. varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
Attic insulation removal costs in Washington, DC, vary based on multiple factors, including why you're removing it and how easy it is to complete the task.
Insulating your attic can improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you in Baltimore, MD.
The cost of blown-in insulation in Baltimore, MD varies depending on the type of insulation, labor, prep work, and more. Learn more about the cost factors in this guide.
