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4 Years In Business

Company Details

  • Verified Licenses


  • Mon: Open 24 Hours
  • Tue: Open 24 Hours
  • Wed: Open 24 Hours
  • Thu: Open 24 Hours
  • Fri: Open 24 Hours
  • Sat: Open 24 Hours
  • Sun: Open 24 Hours
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Service Details

  • Residential Work
  • Commercial Work

Areas of Expertise

  • Comprehensive Energy Audits
  • Blown-in Insulation
  • Air-Sealing
  • Attics
  • Crawlspaces
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Credit Cards Accepted
  • Save 75%

    Save 75% on Any energy saving project* *Must use BGE or PEP ...

    Claim This Deal


13 Verified Reviews
  • 5
  • 4
  • 3
  • 2
  • 1

Highly rated for

  • Quality
  • Value
  • Customer Service
Showing 1-10 of 13 results
5.0 Daniel L. Ellicott City, MD

did a nice clean job

5.0 Suzanne L. Silver Spring, MD

Definitely choose Terra Insulation! Josh, Dylan, and Brandon were all fantastic to work with. They removed existing insulation in two attics that was covered in mouse droppings, sanitized both, added baffling, sealed holes, blew in cellulose insulation, and sealed all entry points. They explained all the options and pricing clearly, gladly answered my MANY questions with patience, took care of the rebates with the utility companies, which significantly reduced the total cost, were super flexible with scheduling, very clean, and professional. There were no surprises or hidden costs. I was extremely happy with Terra's workmanship and professionalism and would hire them again without question.

4.0 Derrick T. Rockville, MD

Didn’t actually use them, talk to them over the phone

4.5 Nicole T. Gaithersburg, MD

Terra Insulation was great to work with. We knew the upstairs of our 50 year old house was cold and needed more insulation. Dylan came by and after looking in the attic said we needed at least 12 more inches and some other improvements to make a difference. He gave us a quote which was one of the higher of the 3 we got but then told us about the Pepco program that provided funds for improvement. They came out and conducted a blower test to see if we qualified for a energy improvement program. We ended up paying 1/3 of the quoted cost with the Pepco incentive. Out of the three contractors, Terra Insulation was the only one certified and worked with Pepco Home performance ENERGY STAR program. They were fast, completed the project in one day and cleaned up after themselves. We put 1/3 down before the job and when finished we accidental paid the full amount. When we realized what happened we called and they refunded the first 1/3 immediately. Honest and reliable. If you need insulation, you want to call Terra Insulation and ask about the ENERGY STAR program. You won’t be sorry. Thank you Terra Insulation. Our house is much warmer and bills are lower this winter.

5.0 Debra H. Silver Spring, MD

Very professional and provided a thorough assessment of my insulation needs. Excellent customer service.

4.5 Aurora A. Towson, MD

Very professional came promptly, use multiple methods to contact me. Would use again

5.0 Roxanne R. Bethesda, MD

Friendly skilled crew. They were efficient and very tidy, despite the messy nature of the work. They took photos of the attic throughout the process. Extremely glad I hired them

4.5 Linda R. Silver Spring, MD

I needed a company that would blow insulation into the walls of my basement. Terra Insulation did the job for me. The technicians were expert at drilling the holes, adding the insulation and clean up. They were professional and informed me of when they were taking a break, etc. They even replaced the disks and added drywall paste to ready the walls for my painter. I highly recommend this company for its dependability and expert installation.

5.0 Shaun H. Burtonsville, MD

They were on time and kept things clean throughout the process. Great bunch of guys. I would use them again.

5.0 John S. Bethesda, MD

They took the time to explain the options and inform my decision-making. They answered all of my questions with patience and good humor. I believe I have received great value for the money I have spent. They were flexible when I wanted to make a change once work had begun. Since the house has been air sealed and insulated we have been warm and comfortable. I highly recommend Terra Insulation for your insulation needs.


Terra Insulation
Terra Attic Systems

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