


Our passion derives from providing you the best in quality, style and service. King & Co. Inc will provide you with the latest product technology, materials and exceptional service for your residential, commercial and industrial needs. Whether you’re selling, renovating or looking to add value to your home, King & Co. Inc. will be there for you until the project is complete.
we offer
See the wide variety of high efficiency windows from the best manufacturers in the industry.
Choose one of our elegant steel entrance doors and you will enhance your home

Why customers choose us
Expert sales, service and installation
We carry a wide range of window products and customization options
Professional and clean installation process
Energy star windows with lifetime warranty
Friendly and understanding customer service
Reliable 24-hour emergency service

get a free quote today!
Call Us Today: 289-221-4721
or Fill out our Form and We'll Get Back to You with a Quote
about us
The De Marco Difference; A legacy that dates back to 1974. A successful name within the industry. We continue to grow with our experience and accomplishments.
For over 30 years our dedication to excellence, high quality products and great customer service, has remained the same. A proudly Canadian owned and operated company. King & Co. Inc. is a leading dealer and installer of superior vinyl windows and steel and fibreglass doors.
