K-One Design Build

6923 Old Dominion Dr,
Mc Lean, VA

Store hours
Monday 9:00am - 5:00pm
Tuesday 9:00am - 5:00pm
Wednesday 9:00am - 5:00pm
Thursday 9:00am - 5:00pm
Friday 9:00am - 5:00pm
Saturday By Appointment
Sunday By Appointment
Monday-Friday 9:00am - 5:00pm
Saturday-Sunday By Appointment
* Hours subject to change
Why choose K-One Design Build
  • Expertise: With over 30 of experience in the industry, we bring a wealth of knowledge and expertise to every project. We are not just windows installers, we build new homes and major additions and have architects and structural engineers in house.
  • Customized Solutions: We tailor our services to meet the unique needs and preferences of each client, ensuring personalized and effective solutions.
  • Quality Assurance: Our commitment to using only the highest-quality materials and the latest technology guarantees the best results for every project.
  • Timely Delivery: We pride ourselves on our ability to complete projects on schedule, providing clients with peace of mind and predictability.
  • Exceptional Customer Service: Our dedicated team is always ready to assist and address any concerns, making the entire process smooth and stress-free for our clients.
Additional information
Sales offered
  • Homeowner Sales
  • Consumer Financing
  • Product Showroom
  • Installation Services
  • Installation Services – Andersen Certified

Mc Lean Windows & Doors | Remodeling & Replacement Installation Contractor

Andersen Certified Contractors — the best window installers in your area

Start your home improvement project the right way with the best window contractors in your area. Andersen Certified Contractors are hand-picked by our team of industry experts and receive in-depth product training and resources. This means they can find the right products for your project and provide the best window installation (or door installation) possible.

Backed by the #1 trusted window and door brand1

We design and test all our products to hold up to the realities of everyday life. This includes our windows, entry doors, patio doors, big doors, and sliding glass walls. And Andersen Certified Contractors will make sure everything is properly installed so it all performs just as it was designed to.

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1 2022 Andersen brand surveys of U.S. contractors, builders, architects & homeowners