Get matched with top insulation install or upgrade pros in Potomac, MD

"David and his team installed dense-packed fiberglass insulation in our flat-roofed attic, using the drill-and-fill method. He was prompt, responsive, and did a great job explaining our options. He charged a competitive rate, and we were really impressed with the whole experience of working with him. Our house had a significant temperature problem on the second floor because of the lack of insulation (hot in the summer and freezing in the winter), and the difference was noticeable right away once he finished installing the insulation, which was great. I would definitely recommend hiring him!"

"Very well. Originally contacted them to do home energy audit as part of PEPCO program. Very thorough and informative. We knew we needed insulation in the attic, and some other issues. There was no "hard sell," just clear information. The insulation work itself exceeded my expectations. The crew was very professional and informative."

"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."

"Diaz and his crew were fantastic - we've hired them several times over the years because they are reliable and do a great job with an eye for details. We had new hardwood flooring and carpet installed in our home in addition to having the entire interior and exterior of the house repainted. They always leave the repair/renovation site very tidy. Would hire them again!"

"We hired ROI Construction for replacement windows and were satisfied overall. They were open to price negotiation (we had competing bids) and flexible on scope, we added shutters at a reasonable cost. One install issue came up, but they resolved it within a couple weeks. Communication was steady throughout. Would definitely consider working with them again."

"In January of this year, I had another company come and take out the old insulation and install the blown-in insulation. However, they botched up the job and we found ourselves constantly vacuuming the insulation that was coming down through all the recess lights. They hadn’t bothered to seal them correctly. They also created so much mess removing the old insulation; so we had to move to the basement while cleaning up the main floor from the messy job they did. That’s when Dan was called in to remove the blown in kind and install the blue jeans insulation. Dan suggested the blue jeans batts, knowing my chemical sensitivity. I hadn’t known such insulation existed and am grateful he did to minimize exposure to chemical. I was very impressed from the moment I saw the crew wearing a suit that was clearly designed to protect them. Dan’s crew discovered that the other insulation company had not properly removed all the old insulation company, and Dan could have charged me more for the extra removal work, but he stuck with the quoted price and did an amazing job. He made sure I would not be affected by the removal of the old blown-in insulation(have asthma). This time no dust was created while removing the blown-in insulation. I can’t say enough about Dan and his crew. I am so grateful to him and his crew. Dan is honest, professional, empathetic, and is meticulous about getting job done right. I would most highly recommend him to anyone for any type of insulation work."

"The experience with USA Insulation was very positive from start to finish. From the first call, the owner, Brian, spent time discussing my questions about the company’s services and insulation products. Mike came on time for an estimate and also helpfully discussed our questions about cutting into a plaster ceiling, what would happen if asbestos or animal intrusion were discovered, covering light fixtures and other initial install work, R-levels, insulation types, etc. After getting quotes from two other well-reviewed and professional companies, we had follow-up questions for Mike about foam insulation and caulk to seal potential cracks and openings, which he helpfully answered by email. Mike was always quick to say what extra services that we would not benefit from. USA Insulation does not install access hatches after cutting a ceiling access point, unlike the other two companies. However, USA Insulation gave the most competitive bid at the outset, and gave us confidence about how they would handle anything unexpected and stay close to their estimate. Because they are popular, they could not come to Northwest DC for a couple of weeks after we decided to move forward. They were worth the wait. The two-person crew that came arrived on time, were very professional tidy, and patiently walked through my questions confirming the products being used, R-levels, light covers, and letting me take a look and take photos at each work stage. They covered floors and furniture before starting, and took out debris and vacuumed once they finished. They also installed some insulation in our basement where we had done some plumbing work behind the walls. When I asked them to add as much R-19 insulation that could fit between the pipes and wall, they obliged and carefully tucked as much as they could – a process that included contorting into awkward spaces to insert the insulation. Because our attic’s roofline and beams prevented the team from installing 4 out of the 6 light covers, Brian reduced the final cost. It has been a week since the insulation was installed, and we are pleased with the comfort of our room temperature now. We are very pleased with USA Insulation’s services."

"I highly recommend Mann-In for any of your HVAC needs. We used them for reducting our entire home, as well as replacing our entire HVAC system and they certainly exceeded all of our expectations! Buck is one of the most knowledgable HVAC technicians I have ever met, and he carefully reviewed and explained everything to us to fully ensure of our comfort and satisfaction before any of the work was to be done. Buck performs the initial consultations and went out of his way to fully explain and resolve all questions and concerns. Chuck, the owner of the company, was fully involved throughout the entire process (from start to finish). Chuck came out to our house to perform a full inspection and came up with a very creative and well thought out design for rerouting the ducts in our home. Mann-In was able to accommodate reducting our home in ways several other highly-rated HVAC companies could not. They are true experts in HVAC and really care about the work they perform. The technicians that performed the reducting of our home and installation of the new HVAC system did a fantastic job. They were very courteous, thorough and clean (they even vacuumed the rooms they worked in daily). It has been several months with the new system and new ducts and we are beyond happy. The air is so much cleaner, temperature is fully regulated in every room, and we fully trust Mann-In to take care of us for all of our future servicing needs. Thank you Mann-In!"

"It only took an hour and a half to blow in the fiberglass insulation. <br /> The only downside was the cleanup wash't very good, as we had to vacuum the hall and the stairs after they left. <br />"

"After checking Angie's List and with the Better Business Bureau, I called DeVere. Within just a few days Joel arrived at our door to look at what was needed and to give us an estimate. At no time did we feel pressure to sign on the dotted line. Joel was professional and obviously knows the business. Once we received Devere's insurance certificate we scheduled the work. Armando and a helper arrived in their work truck and proceeded to rip out all the old insulation and replace it with the new materials they had brought. It was a horribly messy job getting rid of the old insulation but the crew did it without complaint. Once they were done not a trace of material was left behind. The new insulation not only looks great but it does a good job of keepint the bathroom much warmer than it has in the past. Armando and his helper also did a terrific job wrapping the pipes. Neighbors have experienced burst water pipes this winter due to the bitter temperatures and I have DeVere's crew to thank for not having to worry about ours. We could not be happier and just wanted to say thank you."