South Peak Roofing & Exteriors
“He masterfully transformed my decrepit old soffit, fascia, and eavestroughs into a thing of modern, elegant and - most importantly - vented beauty!”
Best Window Installers in Lethbridge, AB
10 companies listed · 7 in Lethbridge · 1 open weekends · 6 rated 4.5+
Data verified October 16, 2026
We are still growing
There are too few quality options within 25 km, so we have expanded area of coverage to up to 100 km from you. This includes Lethbridge and several other cities.
Chase Roofing & Exteriors
“Peter called and arranged my service call much sooner than originally planned.”
Overhead Door Company
“They were very accommodating and come by the same day and replaced both springs.”
Nail & Hammer Building Supplies Ltd.
“Always friendly and helpful, been a customer for many years and will continue to be.”
Anwad Inc.
Coulee Glass & Aluminum Ltd.
“Only place in town that took the time to help us”
Listed for homeowners in and around Lethbridge, AB, these 10 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: Lethbridge, AB
7 of the 10 companies we list are based in Lethbridge; the other 3 serve Lethbridge from Coaldale (16 km) and Magrath (30 km). 9 of the companies on this page have a rating, from 4.1 to 5.0 across 529 reviews; 2 have 50 or more reviews and 6 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (91%), quality (91%) and responsiveness (85%). The topics that come up most in reviews of the companies on this page are "price" and "estimates". 1 is open on Saturdays. 1 lists staff certifications (HAAG). 3 have ten or more years of experience, the longest 22 years. 2 offer financing or payment plans; 3 give free estimates and 3 are family- or locally-owned. We have a website on file for 9 of the companies on this page; 8 publish a contact page and 6 list a public email. 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 3 of the 10 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.
Prestige Windows & Doors
Bethel Windows & Doors
“Contacted a delightful young lady by the name of Carly who helped me obtain window latches from 1991 windows.”
Coulee View Windows & Doors
“A day and a half for 11 windows, the guys were fast and did an awesome job.”
Custom Windows & Doors Inc
“Great work on the window replacements in our home in2022!”
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
