Contact Us

Contact us for any of your windows and doors replacement needs in Greater Toronto Area – GTA and Southwestern Ontario. Call us at 1 (800) 383-6041 or submit your questions, using the form below:

Greater Toronto Area Telephone: 647-383-7675
Toll Free Telephone: 1-800-383-6041
Email: info@onstarwindowsdoors.com
Address:
318 John St
Thornhill, ON L3T 0B1