The Fifth Fuel

The Fifth Fuel The Fifth Fuel specializes in all things home performance. With years of industry experience and kno Our nation’s most cost effective and untapped resource.

At the Fifth Fuel we believe that improving energy efficiency in buildings is the fastest, first, and most important step to achieving the bottom line of sustainability. By maximizing the efficiency of your home or commercial space, you will save money and help improve our environment by reducing the carbon footprint your building leaves on our world. Improving energy efficiency is the first and most important step toward achieving sustainability in buildings and organizations.

Deciding between cellulose and spray foam for your attic? Learn the pros and cons of each insulation type, and find out ...
02/13/2026

Deciding between cellulose and spray foam for your attic? Learn the pros and cons of each insulation type, and find out which solution is best for improving comfort and energy efficiency in your home.

R-value, the standard for insulation, is just the start. For DC Metro homes, discover recommended R-levels, the power of...
01/30/2026

R-value, the standard for insulation, is just the start. For DC Metro homes, discover recommended R-levels, the power of air sealing, and more from The Fifth Fuel.

Learn how air leaks, crawl spaces, and poor insulation affect indoor air quality in Northern VA, DC, and Metro-MD homes....
12/23/2025

Learn how air leaks, crawl spaces, and poor insulation affect indoor air quality in Northern VA, DC, and Metro-MD homes. Find out how air sealing and crawl space encapsulation from The Fifth Fuel can help.

Save energy this winter with attic insulation in Northern VA, DC, and Metro MD. Learn about the best types of attic insu...
12/16/2025

Save energy this winter with attic insulation in Northern VA, DC, and Metro MD. Learn about the best types of attic insulation and how an attic air sealing contractor can help.

Address

8521 Quarry Road
Manassas, VA
20110

Opening Hours

Monday 6am - 5pm
Tuesday 6am - 5pm
Wednesday 6am - 5pm
Thursday 6am - 5pm
Friday 6am - 5pm

Telephone

(703) 991-4772

Website

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