If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
Terra Insulation helps homeowners across Maryland and Northern Virginia improve comfort, lower energy bills, and solve insulation and airflow problems the right way. We specialize in attic insulation, air sealing, crawlspace insulation, duct sealing, and energy audits using blower door testing and infrared diagnostics. Our team focuses on fixing the root causes of energy loss, not just adding more insulation. We are fully licensed, bonded, and insured and take pride in honest recommendations, quality workmanship, and long-term results.
Overview
Hired 49 times
Serves Rockville, MD
Background checked
6 employees
6 years in business
Business hours
SunClosedMon8:00 am - 5:00 pm
Payment methods
This pro accepts payments via Check, Credit card, PayPal, and Stripe.
Customers rated this pro highly for professionalism, work quality, and responsiveness.
Good 4.1
23 reviews
5
70%
4
4%
3
4%
2
13%
1
9%
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Kiya a.
Jul 7, 2026
•
Hired on Thumbtack
Job well done. My home feels much better as a result of the insulation and energy saving upgrades.
Details: Residential • Improving energy efficiency • Managing moisture • Attic • 2 rooms • Need professional's recommendation
Insulation Installation or Upgrade
Ray A.
3 days ago
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Hired on Thumbtack
Very satisfied with the work. The administrative aspect with rebates and financing etc is a little cumbersome, but the quality of work is excellent. Already noticing the difference
Details: Residential • Improving energy efficiency • Attic • 1 room • Batt, Rolled, or Reflective insulation
Insulation Installation or Upgrade
Lana D.
Jul 20, 2025
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Hired on Thumbtack
From start to finish Terra Insulation was really responsive, knowledgeable and efficient. I needed my attic insulated and the drastic difference in the temperature upstairs as jaw dropping. The upstairs used to be 4-5 degrees warmer than the main floor but now it’s the same. Saving me money on my energy bill as well. Thank you Terra Team!
Details: Installation • Attic • Insulation • Optimize energy efficiency
Weatherization
Tyler G.
Nov 14, 2021
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Hired on Thumbtack
The guys from Terra Insulation know what they are doing. They showed up on time and spent several days making sure everything was done to a professional standard. Not only did they get the job done but I was able to receive a large-sum rebate for improving our home’s efficiency. I would highly recommend if you live in an old house, to call Terra Insulation.
Details: Residential • Improving energy efficiency • Attic • Entire home • Need professional's recommendation
Insulation Installation or Upgrade
Madie P.
Apr 15, 2021
•
Hired on Thumbtack
Jeremy and his team were great to work with! They came and did some testing and gave us a quote a couple of months ago. I loved that they provided multiple different options at different price points that worked for us. We didn’t get the work done as soon as we would have liked (our dog got sick and vet bills added up), but Jeremy continued to work with us on a timeline so we could get the job done! Work was completed in one day and the crew was super friendly, and really went above and beyond! Would definitely recommend Terra!
Details: Residential • Improving energy efficiency • Attic • Entire home • Need professional's recommendation
Terra Insulation's reply
Thanks Madie !
Insulation Installation or Upgrade
Credentials
Background Check
Joshua Friddle
FAQs
What is your typical process for working with a new customer?
Contact us to schedule a free in person estimate !
What education and/or training do you have that relates to your work?
All of our technicians are BPI trained.
How did you get started doing this type of work?
Jeremy and Josh met on a service trip in Patagonia and quickly bonded over their love of basketball, crazy entrepreneurial ideas, and the outdoors. On that trip, they vowed to start a business together and believed there were many overlooked opportunities in the home service sector.
Fast forward a few years, Jeremy was on his computer and read a paper about the staggering environmental benefits of updated insulation. So, he looked upstairs and realized that his own insulation is painfully out of date. He then called 8 different installation contractors and none of them even picked up the phone!
Jeremy decided to call up his old friend, Josh, and Terra Insulation was born. Josh is BPI certified and Jeremy brings years of experience to the team.
We believe that by providing great customer service and by taking the time to do quality installations, we can make it easy for customers to update their insulation, slowing global warming.
We are also donating a portion of our revenue to environmental non-profits to further protect the planet from the dangerous effects of global warming
