Turn Your Basement Into Your Favorite Room
Let OSSA help you design and build a space that adds value and meaning to your home
Premier basement builder for Northern virginia.
We Proudly serve Loundoun, Fairfax and Prince William County
What Can You Turn It Into?
3D Design
Design the space where memories begin
Framing & Insulation
We build the bones that support your vision.
Drywall, Taping & Painting
Smooth finishes, ready for your personal touch.
Electrical & Lighting
Wired for comfort and built to code
Egress Windows & Code
Bright, safe, and fully compliant.
Finish Carpentry & Touches
The difference is in the details.
Your basement holds more than air and boxes it holds potential!
Real Families. Real Transformations.
From idea to Celebration
in just 3 Easy Steps
1. Design
Personalized FREE consultation + 3D Design
2. Quote
Transparent pricing, clear timelines, monthly payment options
3. Build
2-week start guarantee, daily updates, and spotless cleanup
⭐⭐⭐⭐⭐ Rated 5 on Google & 4.8 on Homeadvisor
2,000+ Happy Projects
Why OSSA? – Trust Builders
1 Years Warranty
Licensed & Insured
Monthly Payment Options
3D Designs
Our team is here to answer your questions and help you get started on turning your vision into reality.
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Service Area
Fairfax, Loundoun, Prince William County
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