Welcome to The Fifth Fuel!
Heating and cooling accounts for nearly half of all home energy use, according to the US Energy Information Administration. There are many older and historic homes throughout Northern Virginia and Metro DC that lack adequate insulation, air sealing, and moisture protection.
The Fifth Fuel is a locally owned and operated company that has earned a strong reputation throughout DC, Falls Church, Alexandria, McLean, and beyond for providing effective energy efficiency solutions. We have over 30 years of experience in home performance and are highly skilled in getting to the root of home energy efficiency issues. The Fifth Fuel is certified by both BPI (Building Performance Institute) and RESNET (Residential Energy Services Network), ensuring a high level of expertise on each and every energy saving project.
Our team’s services are designed to make homes more energy efficient, comfortable, and durable. Energy efficiency upgrades benefit homeowners for decades and often pay for themselves in energy savings! Our energy conservation experts insulate attics, wall cavities, floors, and basements to make better use of your energy dollars. We encapsulate crawlspaces to save energy and promote indoor air quality, and air seal homes to prevent drafts and uneven indoor temperatures.
Do you want to get to the root of home energy efficiency issues? Call The Fifth Fuel today at to get started!
What is the Fifth Fuel?
See Our Latest Projects
What We Do
Air sealing is the most cost-effective way to increase home comfort and energy efficiency.