Sunrooms & Additions

Indoor comfort, outdoor bliss!

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Why build a sunroom or addition?

  • To Expand Living Space

    Sunrooms and additions create versatile new areas that can be customized to fit your lifestyle.

  • To Enhance Your Home's Value

    A thoughtfully planned and executed sunroom or addition can significantly increase your home's resale value.

  • To Connect with Nature

    Sunrooms and additions allow you to soak up natural light, enjoy fresh air, and appreciate the changing seasons from the comfort of your own private sanctuary.

We proudly offer and install Porch Conversions 4-track windows and doors that transform any outdoor space into a sunroom!

With custom feature, plenty of ventilation options, and durable flex vinyl glazing - you can enjoy your outdoor space for more of the year in full comfort and 100% peace of mind! Watch the product walkthrough video or view our features PDF to learn more.

Sunroom Features PDF
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Robert:

"This entire project was superior to anything I have ever seen. The cost estimate, drawings, county regulation requirements, quality of construction, communication, and respect of my property and family were incredible. We are so happy and highly recommend Fortress Construction!"

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Sunroom & addition features we build

Falls Church Addition - Deck - Garage - Fence2

Vinyl Sunrooms & Additions

Unlike wood or other materials, vinyl siding does not require painting, staining, or sealing.

Falls Church Addition - Deck - Garage - Fence9

Wooden Deck & Fence

Easily entertain dinner guests in the privacy of your own backyard.

Falls Church Addition - Deck - Garage - Fence8

French Doors

Enjoy a seamless connection between your indoor and outdoor living spaces.

composite porch

Custom Air Control

Give your sunroom or addition the air control it needs to keep from getting stuffy on hot summer nights.

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We make your new sunroom or addition stress free

  • 1

    Call Us

    Our free no-obligation estimate helps us understand your vision for your outdoors.

  • 2

    Proposal

    You receive an itemized proposal with a free 3D rendering.

  • 3

    Development

    We begin developing your project after receiving the down payment.

  • 4

    Completion

    You enjoy your new hosting and living area!

Steve Olekszyk:

"We are very pleased with the results. The build took a few months due to the scope of the work and because it was winter with short, very cold days. The day-to-day crew was very knowledgeable, efficient, and the result of their work is a build with very high quality."

Ready to get started?

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What you can expect with Fortress Construction:

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Family-Owned Business

We treat you the way every customer deserves to be treated.

20+ Years of Experience

Have peace of mind that you are getting the best construction techniques on your project.

2-year Labor Warranty

We stand behind our work for 2 years.

Locally Sourced Products

No big-box stores for us: we source local high-quality materials.

Custom Sunrooms
Additions in Northern Virginia

Ready to transform your home with a stunning sunroom or addition? At Fortress Construction, we specialize in creating customized outdoor living spaces that bring the beauty of nature indoors.

Whether you’re dreaming of a cozy sunroom for year-round enjoyment or a spacious addition to expand your living area, our expert team will work closely with you to design and build the perfect space to suit your needs and style.

Let us help you create a truly exceptional outdoor area for retreats.