Prolux Windows & Doors
“Denys was professional, responsive and has worked in the window and door industry for almost 20 years”
Best Window Installers near Nanaimo, BC
None of these companies is based in Nanaimo; they work from towns including Lantzville (14 km), Ladysmith (22 km) and Duncan (46 km).
10 companies listed · 2 open weekends · 9 rated 4.5+
Data verified October 31, 2026
Brownlow and Sons Contracting
“We've used Brownlow for several jobs and they go above and beyond.”
Starline Windows
“My Strata has had windows and patio doors replaced in the past 2 years with Starline Lantzville/Nanaimo.”
Sud Off Services
“Have had the lads from Sud Off Services do work for me a few times now - always on time , great work ethic and exceptionally reasonable rates .”
Island Solar Films
“The day-of installation was smooth, efficient, and the results exceeded my expectations.”
Integral Installations Inc
“I found his service to be professional , extremely reliable and mindful with a great attention to detail.”
Listed for homeowners in and around Nanaimo, BC, 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: Nanaimo, BC
The 10 companies on this page are rated from 4.4 to 5.0 across 302 reviews; 3 have 50 or more reviews and 9 are rated 4.5 or higher. 2 are open on weekends. Domain records put 4 websites of the companies on this page at ten or more years old; the oldest dates from 1996. 2 give free estimates and 1 is family- or locally-owned. We have a website on file for 9 of the companies on this page; 7 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 2 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.
Right Way Building
“Ryan removed a door ro the roof and put in a window with excellent structure.”
Sunshine Coast Doors & Windows
“Pat was very professional and knowledgeable throughout the entire process.”
Central Glass (Duncan) Ltd
“It was such a pleasure doing business with Central Glass, so refreshing to actually get a reply, a quote that stayed the same and was completed when promised, well worth the ferry ride from Salt Spring!”
Fenstur Windows and Doors
“What I loved the most was the lack of maintenance required even with wood, these windows and doors will last a very very long time (decades) before needing to be refinished.”
Why these companies made our list
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