Expand Your Space to Suit Your Needs

Schedule home addition services in McLean & Annandale, VA

Is your family outgrowing your current home? Instead of moving, consider a custom home addition to gain more square footage. K-One Design & Build is a leading provider of home addition services in McLean & Annandale, VA. After we create a one-of-a-kind design for your space, we'll handle everything from pouring a new foundation to hooking up new plumbing and electrical components.

If you need a home addition, construction services are just a phone call away. Dial 888-327-5554 now to discuss your needs with a member of our staff.

How can our crew help you?

No home addition construction project is too big or too small for our skilled contractor to complete. For example, you can count on us to:


  • Bump out a room to make it a little bigger
  • Build one full room from start to finish
  • Add a second floor to your home



Trust us to complete every step of your project, from creating a custom design to putting the finishing touches on your space.

Planning to add guest rooms, workspaces or living areas? Contact us today to schedule custom home addition services.

We made it easy to expand your square footage

Adding onto your home is a big project, but the pros at K-One Design & Build make the home addition construction process simple. We'll take care of every detail, including...


  • Architectural designs
  • 3D models
  • Structural modifications
  • Foundation work
  • Roofing work
  • Electrical and plumbing extensions
  • Interior finish work


Plus, we'll make sure your addition integrates seamlessly with the rest of your home. You'll have the extra space you need in no time. Request our home addition services in McLean, Alexandria or Annandale, VA today.