Serving Washington, DC and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Founders Insulation did a very good job on installing insulation in ceilings! They were careful, courteous and cleaned up."
+11
Serving Washington, DC and surrounding areas
Approved
In business since 1984
Free estimates
Warranties offered
"It was amazing, took all day to get the old insulation out, seal the holes, and refill with new insulation. Would recommend this company to anyone looking for a professional service to improve insulation and save money on heating and cooling costs."
+2
Serving Washington, DC and surrounding areas
Approved
In business since 2025
Free estimates
Warranties offered
Here at Koala Insulation of Washington DC, we pride ourselves on our professionalism, as well as our ability to complete every job to the homeowner's total satisfaction. We never leave a job unfinished, or a homeowner not 100% satisfied with our level of service. We handle insulation work in Washington DC and the surrounding areas - Call today!\n\n
Serving Washington, DC and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Home Genius Exterior just completed phenomenal work at my property!! Windows and insulation done. â Top notch service from the consultation, to the schedule work, the start of the tear down, the installing and the final clean up. Highly recommend this company for your home service. Thank you for the hard work and service!"
+9
Serving Washington, DC and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"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."
+1
Serving Washington, DC and surrounding areas
Approved
In business since 1974
Free estimates
Warranties offered
"This was the second time we hired ROI Construction LLC to work on our home and they did an excellent job both times. Originally our roof was replaced and ROI did a fantastic job, going above and beyond in making sure every detail was perfect. Recently we had the roof and skylights of an addition replaced. In both instances ROI charged less than the competitors and the workmanship was high grade. I highly recommend this company."
+19
Serving Washington, DC and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
We take great pride in our experience, home improvement, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. We specialize in all your outdoor needs from concrete installation and repair to all masonry needs. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
+28
Serving Washington, DC and surrounding areas
In business since 1986
Free estimates
Emergency services offered
"We had them install all the roofing and other hardware for a full Tesla solar roof. Once that project was going, we also had them do 5 outer window/door projects for us. All went well and we're happy we had them do everything!"
+509
Serving Washington, DC and surrounding areas
In business since 1907
Free estimates
Credit card accepted
"There was a problem initially with the radiant barrier installation - the first crew of two were installing 30" wide rolls lengthwise along the roof end to end instead of from ridge to eave as the manufacturer recommends and made a couple of other minor mistakes which were easily corrected. After talking to the manufacturer, the sales rep offered to take out what had been installed and re-install according to spec or continue as already done with sealing of all seams and a discount on the job. Done this way, the foil would not have the insulation properties per spec but would provide the radiant barrier I desired. I chose the letter option and the barrier work was continued by another crew on the 2nd day. On the 3rd day the crew finished up with the barrier then blew in the installation.
With the exception of the initial problem, the work was done neatly and professionally by courteous workmen who cleaned up completely after the job was done.
"
Serving Washington, DC and surrounding areas
In business since 2010
Free estimates
Credit card accepted
"I have worked with Mason and his excellent crew on several projects…a basement dig-out renovation, a kitchen renovation, brick repointing, four bathroom gut/renos, and a living room/dining room gut and renovation. Obviously, I value his thoughtful cogent input, his excellent crew of various superb artisans, and his "brace and suspenders” thoroughness, or I would not have come back to work with him so many times! He is instantly available and totally reliable. The results of the work speak for themselves… these rooms are perfect and perfectly put together. I would not consider working with any other company. His excellence has spoiled me:)"
+3
From average costs to expert advice, get all the answers you need to get your job done.
Budget for attic insulation costs based on factors such as attic size, insulation type, amount of insulation needed, labor, and more.
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Budget for radiant barrier costs based on factors such as foil type, attic size, material quality, ventilation type, labor, and more.
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