The Best Window Companies in Ajax

Handpicked Top 3 Window Companies in Ajax, ON. Our 50-Point Inspection includes everything from checking reviews, ratings, reputation, history, complaints, satisfaction, trust and cost to the general excellence. You deserve only the best!


61 Stockbridge Crescent, Ajax, ON L1T 2G8

Since 1998

Window Replacement, Window Installation, Door Installation, Door Replacement, Casement Windows, Single Hung Windows, Double Hung Windows, Awning Windows, Single Slider Windows, Double Slider Windows, Bow Windows, Bay Windows, Energy Efficient Windows, Steel Entry Doors, Fiberglass Doors, Sliding Patio Doors, Hinged Patio Doors & Storm Doors

Offers Free Estimates - Installs High-Quality Windows of All Shapes, Sizes & Types with a Minimum of Interruption to your Life - Serves in Aurora, Markham, Mississauga, Oakville, Richmond Hill, Scarborough, Toronto, Vaughan, Ajax & Pickering

Discount: 50% Off on All Windows

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We got 10 triple pane energy efficient windows. We are happy with the quality of the windows, and how fast the window installers installed our windows. Customer service via email, phone and text messages was excellent. Thank you Thermo Bilt Windows & Door.
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845 Westney Road South, Unit 4, Ajax, ON L1S 3M4

Since 1973

Vinyl Windows, Aluminum Windows, Shaped Window, Wood Windows, Windows, Double-Hung Windows, Single-Hung Windows, Bay Windows, Window Installation, Bow Windows, Casement Windows, Awning Windows, Glass Doors, Entry Doors, Replacement Windows, Picture Windows, Energy Efficient Windows, Exterior Doors, Door Installation & Door Replacement

Provides Quality Services with the Highest Level of Workmanship & Customer Service - Uses Quality Materials & Quality Installers to get the Job done Right the First Time

License #B2355

Mon - Fri 9:00 am - 5:00 pm
Sat & Sun Closed

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75 Bayly Street West, #307, Ajax, ON L1S 7K7

Since 2003

Tilt and Turn Windows, Entrance Doors, French Doors, Sliding Doors, Vertical Sliding Sash Windows, Residential Windows, Commercial Windows, Composite Windows, Aluminum Windows, Door Installation, Door Replacement, Window Installation, Window Replacement, Picture Windows, Energy Efficient Windows, Garden Windows & Casement Windows

Serves in Toronto, Oshawa, Pickering, London, Hamilton, Brampton & Milton - Dedicated to Provides Quality Products & Services from Start to Finish

Mon - Sun 9:00 am - 5:00 pm

All their products are manufactured according to old craftsman traditions.
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