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.

Improve comfort, cut energy costs, and protect your home with attic insulation and crawlspace encapsulation. Discover ho...
11/25/2025

Improve comfort, cut energy costs, and protect your home with attic insulation and crawlspace encapsulation. Discover how these upgrades make a lasting difference, with The Fifth Fuel.

Upgrade your Bethesda home’s comfort and energy efficiency with expert insulation, air sealing, and energy audits from T...
11/18/2025

Upgrade your Bethesda home’s comfort and energy efficiency with expert insulation, air sealing, and energy audits from The Fifth Fuel. Trusted in Montgomery County since 2008.

Discover what’s making your home inefficient or uncomfortable. Schedule an energy assessment with The Fifth Fuel for tai...
10/08/2025

Discover what’s making your home inefficient or uncomfortable. Schedule an energy assessment with The Fifth Fuel for tailored fixes and long-term savings.

🚨Urgent: The $1,200 insulation tax credit ends Dec 31, 2025. Don’t miss your chance to save! Book an appointment with Th...
09/24/2025

🚨Urgent: The $1,200 insulation tax credit ends Dec 31, 2025. Don’t miss your chance to save! Book an appointment with The Fifth Fuel today and schedule your home energy upgrade before the deadline!

The $1,200 insulation tax credit now ends Dec 31, 2025. Act fast to upgrade your home and claim your savings before it’s too late!

Tired of hot upstairs bedrooms? Learn why second floors overheat in summer and how insulation, air sealing, and crawl sp...
09/02/2025

Tired of hot upstairs bedrooms? Learn why second floors overheat in summer and how insulation, air sealing, and crawl space upgrades from The Fifth Fuel can keep your home cool and energy costs low.

Energy upgrades from The Fifth Fuel cut air leakage by 28% across 200 Fredericksburg townhomes, improving comfort and ef...
06/18/2025

Energy upgrades from The Fifth Fuel cut air leakage by 28% across 200 Fredericksburg townhomes, improving comfort and efficiency in aging multifamily housing.

Learn about the many benefits of crawl space encapsulation through one of our satisfied clients. Call our team of experts today to get started with a free in-home assessment.

Get answers to common insulation questions: types, costs, benefits, and more. The Fifth Fuel in Northern Virginia, Metro...
02/28/2025

Get answers to common insulation questions: types, costs, benefits, and more. The Fifth Fuel in Northern Virginia, Metro Maryland, and DC helps you maximize home efficiency.

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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