Energy Efficiency Starts with Better Insulation

At LandMark General Contractors, we specialize in premium spray foam insulation for homes and commercial properties across Washington D.C., Maryland, and Northern Virginia. Our spray foam solutions deliver unmatched energy efficiency, comfort, and long-term savings—perfect for the Mid-Atlantic’s humid summers and chilly winters. Whether you’re updating an older home or insulating new construction, our certified team ensures lasting performance and superior comfort for every project.

Free Inspection

Call Us Before Winter

Homeowners in the DC, Maryland, and Northern Virginia region should contact LandMark General Contractors before winter hits to ensure their home or business is properly insulated for the cold months ahead.

Once temperatures drop, frigid air can seep through gaps and uninsulated spaces, forcing heating systems to work overtime and driving up energy costs.

Installing spray foam insulation before winter creates a seamless air and moisture barrier that prevents drafts, protects plumbing from freezing, and reduces the risk of ice dams forming on your roof. It also helps maintain steady indoor temperatures, eliminates cold spots, and keeps your home warm and comfortable even during extreme weather.

Early installation ensures materials cure properly and keeps your home ready to withstand winter conditions efficiently and safely

Call Us

(240) 354-5543

Why Choose Spray Foam Insulation?

Spray foam insulation is a two-in-one solution that insulates and seals your building envelope in a single application. Unlike fiberglass or cellulose, spray foam expands to fill every gap and crevice, minimizing energy loss and air infiltration.

Key Benefits:

Exceptional Energy Efficiency: Spray foam’s high R-value per inch keeps indoor temperatures stable and HVAC usage low, cutting heating and cooling costs by up to 30%.

Air and Moisture Barrier: Creates an airtight seal that prevents drafts, moisture intrusion, and condensation.

Improved Indoor Air Quality: Reduces the infiltration of pollen, dust, and outdoor pollutants—ideal for allergy sufferers.

Mold and Pest Resistance: Prevents mold growth and deters pests that thrive in humid environments.

Soundproofing and Comfort: Enhances quiet and comfort in your home or office.

Perfect for Homes and Businesses Across the DMV

From Washington D.C. row houses to Maryland suburban homes and Northern Virginia offices, each project we complete follows industry-leading insulation standards. Spray foam insulation offers long-lasting benefits ideal for:

New construction projects
Retrofit and renovation upgrades
Attics, crawlspaces, and basements
Commercial and multi-family buildings

Our technicians understand the unique energy demands of the DC, MD, and VA region, providing tailored solutions that meet local code requirements and improve property efficiency year-round.

We Use The BEST Materials

Introducing CertainTeed Synthetic Roofing Felt Underlayment

The cornerstone of our roofing upgrade is the installation of CertainTeed’s Synthetic Roofing Felt Underlayment.

This advanced underlayment provides a robust layer of protection against leaks and water damage, outperforming traditional felt by offering greater tear resistance and stability.

By choosing this superior product, the community center now benefits from enhanced roof longevity and superior weather protection, essential for Maryland’s diverse climate conditions.