I had them redo the vapor barrier in my crawlspace and add insulation. They were professional, great to work with, and reasonably priced. I will use them again!
About The Fifth Fuel
The Fifth Fuel provides excellent service for attic insulation upgrades. The team is responsive, professional, and fairly priced. They are meticulous and leave the house cleaner than before. Customers are pleased with the end result, often praising the installation crew for their fantastic work. The crew is prompt and courteous, taking the time to explain the process. Recently, customers have highlighted the impressive performance of the crew, who worked diligently even in challenging conditions. The team has received commendations for their attention to detail and efficiency, making a significant difference in the comfort of homes. Customers also appreciate the clear estimates, on-time scheduling, and clean work each day, as well as the help with Dominion energy rebates and competitive quotes. Overall, The Fifth Fuel is highly recommended for a great insulation experience, promising both short-term and long-term savings.
Reviews
Prompt, excellent service! Our crew was fantastic. On time, thorough and conscientious!
We had 5th Fuel out to seal and reinsulate our attic and crawl space. The process was pretty straightforward. The estimate and scheduling were clear, they showed up when they said they would, and left the house super clean at the end of each day. We’re happy to be heading into winter with a better insulated home.
Photos

Hours
Good to know
- on-site services
- accepts credit cards
- energy efficiency experts
Location
8521 Quarry Road, Manassas, VA 20110
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