Builders, Contractors and Rehab Specialists

Keystone is your window and door solution. We built our reputation with builders and contractors on great service, quality products and direct responsibility. If that’s what you’re looking for in a professional partner, you’re looking for Keystone. Call us or stop by the showroom for a price quote. No matter what size project, we would love the opportunity to earn your business. You won’t be disappointed!

• Fax window schedules to 206-860-8788 or use our online free estimate form below.
• Bring your clients to the Keystone showroom at 2215 4th Avenue South in Seattle for browsing and expert consultation in a professional setting. Position us as your partner to improve client satisfaction and referrals.
• Get cash back when you sign up for our Keystone Bucks Rewards Program exclusively for contractors.

Contact us today for more information.

Keystone Windows & Doors General Contractor’s License: #KEYSTWD9840L
Contractor’s Bond ($12,000) Bond #SB6893 with CBIC
Insurance ($1,000,000) Commercial
Liability/Property Damage Policy # LO710026371 with Atlantic CAS INS CO.