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High-Quality Window Replacement from Christian Siding

Manassas and Neighboring Areas in Northern Virginia, Maryland, and D.C.

Windows add aesthetic and functional appeal to every home and commercial building. Letting in extra light has positive effects on the human body and mind. However, cracked, broken, or otherwise inefficient windows end up wasting homeowners and business owners money in high energy bills. That’s why Christian Siding LLC offers high-quality window replacement in Manassas and other areas around Northern Virginia.

Why New Windows

Replacing your home’s old, drafty windows with beautiful, energy-efficient Northern Virginia replacement windows from Christian Siding is a very smart investment! Here are five great reasons to install replacement windows in your home.

  1. Cut monthly heating and cooling bills by up to one-third
  2. Stay warmer all winter and cooler all summer
  3. Reduce exterior noise infiltration
  4. Eliminate window maintenance
  5. Enhance the curb appeal of your home

Make the call to Christian Siding today to start the process of upgrading your tired old windows with new, energy-efficient replacement windows.

The glass packages available in replacement windows installed by Christian Siding include some of the most advanced features available today. At the heart of our replacement windows is a technologically advanced glass called Low-E (low emissivity) glass. Low-E glass maximizes your home’s efficiency by reducing the amount of heat entering or escaping. Microscopically thin layers of oxidized metal are applied to the glass surface, allowing filtered light to pass through while reflecting most heat energy back to its source – an incredibly efficient way to reduce energy loss.

Windows manufactured from vinyl represent the largest market share in the replacement window business. High-quality structural vinyl is affordable, strong and provides very good energy savings, with moderate to high R-values to help reduce heating and cooling costs.

  • Economical cost
  • No painting or maintenance required
  • Outstanding energy efficiency
  • Wide variety of styles
  • Custom fit and sizing

Thanks to advanced manufacturing techniques, fiberglass windows are among the strongest and most energy-efficient windows available. Fiberglass window components are extremely durable and can be readily fabricated and customized. The resins comprising fiberglass window components are smooth and capable of accepting a wide variety of custom, color-through colors.

  • Stronger than wood or vinyl
  • Better insulating properties than wood
  • Maintenance-free and rot-proof
  • Expands and contracts uniformly, allowing the frame to maintain its integrity
  • Can be painted after installation

Upgrade to New Windows Today!

Schedule Your Free Estimate

Window Styles

Single / Double Hung

  • Sashes slide vertically
  • In a single-hung window, only the bottom sash moves


  • Hinged at the top
  • Opens outward


  • Box-style window that extends outward from a wall
  • Creates a sunny spot for plants


  • One or both sashes slide horizontally
  • Ideal for small spaces

Bay / Bow

  • Combination of three or more units that curve outward
  • Used to increase views and natural light
  • Adds architectural interest


  • Hinges are located on one side
  • Opens outward


  • Large, stationary panel
  • Often used in combination with other windows

Bay Window Extensions

  • Extensions of bay windows outwards
  • Often used in combination with other windows
  • Allows more light to come into home as well as expands living space

Get Your Windows Replaced Today!

Schedule Your Free Estimate