Quality Windows & Doors. Great Service. Exceptional Value.

Our energy-efficient windows and doors keep costs down. Low E, argon gas filled windows provide the highest performance maximum energy cost savings.




Windows & Doors in Sudbury Ontario

Your Best Choice for Quality Windows & Doors in Sudbury, ON

Gainer Windows & Doors provides residents of Sudbury, Ontario with quality windows, doors, roof, and siding for new construction. We also update weathered or worn-down exteriors. You’ll love our reliable service, quality products, and competitive pricing. We offer competitive pricing for all Windows & Doors in Sudbury ON. Give us a call today at 705-990-2916

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Courtesy of Gainer Windows & Doors.


The windows we install enhance the look of your home and increase energy efficiency.

Our experienced roofing specialists fix damaged roofs and install new ones.
We offer various entryway options to give you the opportunity to update your house doors.
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Update the look of your exterior by installing these three components.

About Gainer Windows & Doors in Sudbury

We are a well-established company that installs doors, windows, siding, and roofs for homeowners in Sudbury, Ontario. Our home remodelling process is simple: We provide a free quote for your requested exterior service, perform the needed installations, and service what we sell. We take pride in the incredible service and excellent workmanship we deliver to our customers.

We understand the amount of investment that goes into remodelling the exterior of a house. When you choose us to install or update your home, you get the value and quality you deserve. You can expect the results you want and deserve at a fair price.

When it comes to the brand of doors and windows we install, we use products from North Star®, a leading manufacturer in Canada. We want to give our customers the best value possible by installing a high-quality product in their homes.

If you are looking for windows, doors, siding, soffit or fascia and are located in Sudbury and surrounding areas our team of skilled professionals are ready and here to help. 

In Sudbury – Windows & Doors and so much more!

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Reach Us

Location :

505 John St, Sudbury

ON P3E 1R4

Email :

Phone :

Serving Homeowners in Sudbury

We have a good track record of meeting the expectations of our homeowners. Many of our customers choose us for door and window replacement for the following reasons:

Experienced Company

We’ve been in the exterior remodelling business for more than two decades.

Excellent Customer Service

We respond to issues quickly and stand behind our people.

Great Value for Your Money

Residents enjoy quality products at a competitive price.