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St. Catharines’s Choice for Window Installations

Since 1973, Fleming Windows & Mirrors Limited has been providing quality custom doors and windows installation services in St. Catharines. Professionally installed windows, doors, and shower glass add value and curb appeal to your property. At Fleming Windows & Mirrors Limited, we help you get the most of your investment by offering a wide range of windows. With over 45 years of experience in the industry, our professionals are skilled in installing various types of windows for your residential facility. We are an authorized dealer of KV Windows & Doors and Vinylbilt Windows & Doors. If you are looking for windows that are energy efficient and maintenance free, we are the right choice for you. We also carry service parts.

Energy Efficiency

  • We sell windows that are ‘ENERGY STAR®’ rated.

  • We stock Vinylbilt windows that have been tested and met the new NAFS 2014 (North American Fenestration Standards).

  • Our windows come with double and triple sets of weatherstripping.

  • Low E glass, warm edge, and argon gas filled technology are a standard on our windows.

Easy Cleaning and Maintenance Free

Vinyl is the material of choice in today’s modern windows. We sell windows that are manufactured using quality extruded vinyl, cut and welded to standards and have a tilt-in function to allow for easy cleaning. Many of our windows come with Cardinal's "Simply Clean" exterior glass coating and it comes as a standard no charge feature.

Our Products

We stock a wide variety of windows that can be installed to your specifications. These include:

Casement Windows

Casement windows are one of the energy-rated operating windows available. These windows allow complete ventilation with concealed hinges. They also come with an interior removable full screen. Casement windows are available in various colours, accessories, and glass.


Awning windows are similar to casement windows which open outward. However, they open with a top hinge instead of a side hinge. They offer protection from weather while still allow for good ventilation. Most of them are used as kitchen or bathroom windows.

Fixed Picture Windows

Fixed picture windows are available in large sizes and they have one of the highest energy ratings of any window. This style of windows comes in a few shapes - round top, octagonal and oval. Fixed picture windows are stationary and energy efficient that allow natural light stream into the room.

Single/Double Hung Windows

Single and double-hung windows are ideal for walkways or patios. Single-hung windows have a single operating lower sash that allows ventilation. Double-hung windows have a double operating sash that moves up and down allowing ventilation on the bottom, top, or both.

Single/Double Horizontal Slider Windows

Single and double horizontal windows are economical and feature easy cleaning. Slider windows open with a sash sliding right or left and few people find them easier to open than casement windows.

Greenhouse Windows

Greenhouse windows can transform any room into an indoor garden. They let in more natural light by protruding outwards from your home. These are commonly used to grow flowers, house plants, and herbs.

Contact us today for more information about our window sales and installation services.

Ask Us for a Quote

Talk to our experienced window and door installers in St. Catharines and surrounding areas.


Fleming Windows & Mirrors Limited

29 Maywood Avenue

St. Catharines, ON 

L2R 1C5

Phone: 905-684-8774

Fax: 905-684-0474



Monday - Friday 08:00 AM - 05:00 PM

Saturday 09:00 AM - 01:00 PM


  Niagara Falls









 Fort Erie

 Port Colborne

 Niagara Region


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