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TRUSTED BY THURMONT, MD HOMEOWNERS

  • Average homeowner rating star icon3.9
    Average homeowner rating
  • Verified reviews icon63
    Verified insulation services reviews

Top-Rated Insulation pros in Thurmont - Updated Nov 2026

Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Thurmont, 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."
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
Response time1 day
Response rate100%
121 neighbors recently requested a quote
Avatar for Tri-State Builders
Tri-State Builders
4.6(
104
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Thurmont, MD and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Stephen and his team did a fabulous job of insulating a space behind a bedroom wall and adjacent bathroom wall that was completely uninsulated. We suffered through two cold winters that heaters couldn't solve in these rooms. Stephen evaluated the project efficiently and then oversaw the work. It was performed beautifully by the team and they cleaned up before leaving. Everything was immaculate. Most impressed with this company and this project manager."
 Kitchen
Barber Addition
Rowland Addition
Custom Home
Traska Addition

+36

Response time3 days
18 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Atlas Home Energy Solutions
Atlas Home Energy Solutions
4.1(
34
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Thurmont, 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!"
Visual Inspection of all Areas of your Home
Attic Insulation and Air Sealing
Infrared Camera Inspection
Attic Spray Foam
Blower Door Whole House Air Leakage Test

+11

Response time1 day
Recommended by87%of homeowners
Avatar for ROI Construction LLC
ROI Construction LLC
4.1(
18
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Thurmont, MD and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"We had a great experience with ROI Construction sales representative David Burke. David was very knowledgeable about ROI's porducts and services. We look forward to getting our attic insulation project completed and will provide a more thorough review at that time. Thanks, Tim"
Additional Photos
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+19

51 neighbors recently requested a quote
Recommended by90%of homeowners
Accurate Insulation - Home Facebook
4.2(
152
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Thurmont, MD and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"We needed insulation applied only to the underside of the house at this time. The guy who came out to give an estimate was great. The guy that came out to do the spray job (I expected a team and got just one guy) was super nice. The spray foam would appear to be difficult to manage during application as some spots only have a skim of insulation while others seem to have 7 inches of it. The office..... trying to get any information from that office.... was a hassle way beyond my wildest nightmares. Getting the estimate took days, getting scheduled took days. They have only one person working to do all of the scheduling and she "is out of the office" during a whole heck of a lot of "our office hours are from...". Figuring out what I needed to know to pay online took pulling teeth. It was the best price I got and it will make a world of difference to that house structure and its moisture issues.... but good grief!"
Response time2 days
Recommended by97%of homeowners
Avatar for Atlas Home Energy Solutions LLC
Atlas Home Energy Solutions LLC
4.9(
106
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInsulation - Install or Upgrade+1 more

Serving Thurmont, MD and surrounding areas

In business since 2009

Free estimates

Warranties offered

"Between Brad K., the company’s support team, and the crews who come out to do the job and execute the work, you cannot select a better company to help you make your home energy efficient and reduce your utility bills by insulating the house and sealing your duct work. As for Brad K., the job begins with Brad coming to your house and conducting an Energy Audit. This gives everyone a far better understanding as to what needs to be done in your home. And, Brad concludes with conducting a “ Test Out,“ to see the improvements. Pepco will offer you a partial rebate for the work completed and they are very satisfied with a 20% reduction. As for us, we hammered Brad with dozens of questions over the course of time before and after we ratified an agreement. In every case, Brad was extraordinarily responsive especially with him being burdened performing audits throughout the day and being offsite. We couldn’t be happier with Brad’s performance. The same goes for the inside team including Jeff, Gordon and Ashley. And, everyone of the guys and their team leads who came to the house not only focused on executing their expertise, but were also very customer focused. In our case, the “test out demonstrated a 36% reduction,“ and Brad believes the partial rebate will be even greater. A Little Constructive Feedback Here: Be sure to ask and fully understand what needs to be done prior to the crews arriving. We had three teams over three days (not in a row) and learned at that moment what more needed to be done to fully finish the job. This will minimize to virtually eliminate any further challenges for the crews and yourselves. However, the job was completed. Over the next 45 days or so, after our utility bill fully cycles, we look forward to seeing the results of Atlas’s work and the reduction in our utility bills. Atlas Home Energy Solutions is Your Best Buy. We are certainly available to provide any further references. RichandJames Peterson Silver Spring, MD (301) 592-1616 Email: [email protected]"
Additional Photos
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Additional Photos

+16

Response time3 days
Response rate100%
Recommended by97%of homeowners
Avatar for Handy Development llc
Handy Development llc
4.9(
9
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Thurmont, MD and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"The team arrived slightly early to be well prepared to start the job on time. As they began they laid down protective barriers to keep the home clean. While in the attic they blew in the insulation with an even consistent barrier, ensuring that all locations with infrastructure were well covered. As they wrapped up the job, they cleaned behind them as they closed up the attic, removed the floor coverings and were on their way. The only way I can tell they were here is that the heat runs less in the winter and the air conditioning runs less in the summer. I would recommend this process and this team to anyone who owns a home and has not insulated their attic."
Fairfax va Install
Martinsburg wv ( Attic barrier
Martinsburg solar fan installed
Winchester Va radiant install
Salem Virginia install

+45

Recommended by100%of homeowners
Showing 1-10 of 33
Insulation FAQs, answered by experts

A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It’s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.

Although it’s not required, air ventilation in a finished basement can help improve the air quality, prevent moisture and mold issues, keep musty odors away, and also maintain the air quality throughout the rest of your home. Proper ventilation will help maintain the value of your investment in finishing your basement. Try basement ventilation methods like installing vents or a dehumidifier for best results.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

A garage ceiling needs a vapor barrier if it’s a heated garage or if you’re installing insulation in the ceiling. Without a vapor barrier, you risk moisture issues and mold growth. If you have an unheated garage and don’t plan on installing insulation that could get wet and harbor mold, the ceiling doesn't need a vapor barrier.

It's essential to use insulation materials specifically designed for air ducts. Common types of duct insulation materials include fiberglass, foam board, and reflective foil. These insulation materials have the right properties to withstand the temperature and airflow conditions within the ductwork. Using the appropriate insulation not only ensures efficient temperature control but also prevents potential safety hazards or the release of harmful particles into the air.

The Thurmont, MD homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.