
Serving Gwynn Oak, 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 Gwynn Oak, 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 Gwynn Oak, MD and surrounding areas
Approved
In business since 2023
Free estimates
Warranties offered
"We had insulation installed a week earlier by Koala. During the insulation, Jasper (insulator) suggested another area that we might consider installing blown-in insulation. We agreed and the second job was performed on Friday, the 24th. Jasper and Richard were on time, the insulation project was well done and they left the area very clean. Would use them again."





+9

Serving Gwynn Oak, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2004
Free estimates
Emergency services offered
"Prompt, courageous and provided exactly what I needed. There was little to no insulation nor room in the attic. I priced it out and started to wonder ‘..can I really do this job myself?’ Maybe 10 years ago but the price for Pink blown- in insulation was so good- I couldn’t afford not to have Home Genius Exteriors do the job. I am so happy to see that beautiful sea of pink insulation. Kudos"





+73

Serving Gwynn Oak, MD and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"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."





+1

Serving Gwynn Oak, MD and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"The team from Atlas did an excellent job of installing spray foam in my attic, adding additional loose fill in another portion of my attic, and sealing my ducts. Would certainly hire again for other insulation projects and highly recommend them."





+11

Serving Gwynn Oak, 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."




Serving Gwynn Oak, MD and surrounding areas
In business since 2011
Free estimates
Warranties offered
"It was a little more expensive than the two other bids I got, but I trusted the owner who, unlike the others, really listened to my concerns and preferences. Christian, the installer did a fast and efficient job above and beyond expectations. He was charming, hardworking, and fixed or repaired damaged or disconnected AC ductwork he discovered in pereparation for installing the insulation. He arrived on time, finished the job faster than I expected and did an immaculate job of cleaning up after the work."





+5
Serving Gwynn Oak, MD and surrounding areas
In business since 1986
Free estimates
Emergency services offered
"It was an absolute pleasure working with everyone at American Home Contractors (AHC). I had a very customized project requiring a very specific type of siding since I live in Georgetown, DC, and we have several layers of historic oversight required prior to permit issuance. In other words, this neighborhood is extremely difficult to work in due to all the regulations required to obtain a legal permit to do any external work on these historic homes. John Roda, AHC’s Project Coordinator, was my primary contact at AHC over the many months it took me to finally obtain my permit and begin deciding on how to obtain the siding necessary to meet permit specifications. He was extremely competent and patient throughout the entire process and worked closely with me and the Historic Preservation Office contact for Georgetown to ensure that we were meeting strict product demands while also staying within my budget. So many other companies either refused to work with me or were incapable of working with me on this project due to the difficulties I encountered while navigating the permitting process alone. AHC is different. They have stamina, courage, and endurance. High-quality people + high-quality materials= high-quality job with the added bonus of a decent price for what you are getting. In the end, my home looks absolutely stunning. Even more importantly, I now have the peace of mind that my home has good quality siding and is structurally sound. AHC actually had to remove the illegal Masonite siding (has a class-action lawsuit for the damage it has caused homes in the past) that was likely installed in ~1970-1980 without the issuance of a legal permit when the old pebble dash stucco was removed. They installed some beautiful cedar siding in its place. I spent many sleepless nights worrying about the damage the Masonite might have done to the furring strips and the old 1880s substrate in the lead-up to the installation. Thankfully, all was well and the installation was extremely efficient and successful. The AHC siding installers arrived at 7 am on the day of installation and worked tirelessly until 7 pm. We initially estimated the job would take ~ three days, and they finished in only a day. Their work ethic and workmanship on the installation were truly astounding, especially in an era when simple tasks are often drawn out and good work ethic and professionalism are touted ad nauseam by companies but rarely mobilized in practice. As a first time homeowner, I have gone through a lot of mental anguish with my home’s historic idiosyncrasies, particularly when I am in the process of gathering estimates for necessary maintenance work and wait weeks or even months to hear back from companies that overcharge for low-quality materials and unenthusiastic, inefficient labor. AHC is different. I heard back with my first estimate within days (during fall 2020 with the COVID pandemic raging on), the materials were excellent, the price was fair, and John was very enthusiastic and optimistic throughout the project’s duration even despite the multiplicity of hurdles we encountered with the ever-changing demands of the historic preservation specialists. The only upside of gathering competing estimates and meeting with all those contractors I met with initially is that when I finally found a gold standard contractor (AHC), I experienced the sheer relief of having a reliable contractor for my current and future projects and to wholeheartedly recommend to friends and family. I am so grateful to everyone at AHC who worked so hard to make what really seemed impossible and out-of-reach finally materialize. If you have a tough (or simple) project that you need to be done right and are torn between companies or are just starting your search for a reliable, five-star contractor, I can highly, highly recommend AHC based on my experience with them. You will not be disappointed."





+509
Serving Gwynn Oak, MD and surrounding areas
In business since 1907
Free estimates
Credit card accepted
"They were very thorough and went over with me that they were going to do and engaged me in the process. The staff was very good. There was this one guy who took his time to have discussions with me. He also called me on the telephone to make sure that I understood everything that was going on. They also took their time to follow up which was good.
I think their price is competitive to the market. They were very responsive. "
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