Best Window Installers in Hamilton, ON
15 companies listed · 11 in Hamilton · 1 open 24/7 · 7 open weekends · 13 rated 4.5+
Data verified October 18, 2026
Arcana Windows & Doors
Award Windows Inc.
Everlast Windows and Doors
Gerry's Roofing & Siding Inc
C Windows Ltd.
Listed for homeowners in and around Hamilton, ON, these 15 companies fit and repair windows. Frame materials, glazing options and any credentials shown are taken from company websites; the customer lines are quoted from public reviews.

Area overview: Hamilton, ON
11 of the 15 companies we list are based in Hamilton; the other 4 serve Hamilton from Burlington (9 km) and Dundas (6 km). The companies on this page are rated from 4.4 to 5.0 across 1,900 reviews; 9 have 50 or more reviews and 13 are rated 4.5 or higher. The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "estimates". 1 is open around the clock; 7 are open on Saturdays and 3 on Sundays. 2 show a licence on their websites and 1 lists staff certifications (GAF). 4 have ten or more years of experience, the longest 15 years. 1 offers emergency call-outs; 2 offer financing or payment plans; 10 give free estimates and 2 are family- or locally-owned. We have a website on file for 14 of the companies on this page; 13 publish a contact page; 11 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Is the home visit and measurement free?
A no-cost quote is offered by 10 of the 15 companies on this page. It comes with a sales visit, so agree how long it will take before they arrive. Ask for the quote in writing on the day, itemized by window, and be wary of a discount that disappears the moment the visit ends.