Modern house with large windows, a patio, and landscaped front yard with trees, bushes, and flowers during sunset.

Windows

Front view of a modern house with stone and white siding, large windows, landscaped front yard with colorful plants, a lamp post, and a sign that reads "2 Monarch Drive."

Northern Performance Windows & Doors offers a wide selection of windows engineered for Canadian weather. With options that balance functionality and style, we’ll help you find the perfect fit for your home. Our team delivers exceptional customer service and high-quality replacement windows designed to boost your home’s value and energy efficiency.

Our experts will guide you to the ideal windows for your style and budget, considering every aspect of your project. We recommend windows that highlight your best views, maximize natural light, and keep your home secure and comfortable year-round.

Quality Windows, Expert Installation — Serving Orillia Since 1991

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Three illuminated LED light panels with white frames, arranged with one larger panel in the center and two smaller panels on either side.
Three illuminated LED light panels with white frames, arranged with one larger panel in the center and two smaller panels on either side.

Picture Windows

Two white casement windows, one with the window open showing the screen and the other closed.

Casement Windows

A white bay window with multiple panes and a large central mirror.
A white bay window with multiple panes and a large central mirror.

Bay & Bow Windows

Sliding window with white frame and textured glass panels.
Sliding window with white frame and textured glass panels.

Slider Windows

Three white double-hung windows, two closed and one open, isolated on a white background.

Hung Windows

White tilt-turn window with a handle, partly open, with a black background.

Awning Windows

Illustration of various geometric window shapes, including semicircular and arched forms, arranged together.

Shaped Windows

Benefits of Our Windows

At Northern Performance Windows and Doors, our windows are built for Canadian weather and combine exceptional energy efficiency, lasting durability, and beautiful design in a complete selection of window styles. Whether you're renovating, building new, or upgrading your home's curb appeal, we'll help you find the perfect fit.

Our windows are engineered to keep your home comfortable in every season. Advanced SUPER SPACER® technology and Low-E glass work together to reduce drafts, minimize condensation, block outside noise, and improve energy efficiency—helping keep your home warmer in winter, cooler in summer, and quieter all year long.

For homeowners seeking the highest level of performance, optional triple-pane glass and Argon or Krypton gas fills provide enhanced insulation and greater energy savings. Industry-leading protection against water infiltration, strong wind resistance, and premium weather sealing ensure dependable performance through Canada's toughest weather conditions.

The result? A more comfortable home, lower energy costs, and windows built to perform beautifully for years to come.

A window in a gray wall with a snow-covered ledge and a red sticker overlayed in the lower-left corner with the text "BEFORE".
A house’s window with a reflection of a tree outside, situated on gray horizontal siding, with a red partial overlay at the bottom displaying white text saying "AFTER."

Check out our recent projects!

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Our Colour Options

*North Star Available Colours

Available Exterior Colours

Close-up of a white wooden surface with visible grain and texture.

White

Dark textured surface resembling wood or similar material with a horizontal grain pattern.

Espresso

Close-up of a beige textured surface with a horizontal pattern.

Sandalwood

A beige-colored wooden surface with visible wood grain and texture.

Sable

Close-up of beige textured wall.

Ivory

Close-up of a black textured wooden surface with horizontal grain patterns.

Anthracite Grey

Close-up of a textured, light-colored wooden surface with horizontal grain patterns.

Hickory

A dark, mostly featureless sky with a few visible stars.

Midnight Black

A close-up view of a dark brown textured wooden surface.

Cocoa

Available Interior Colours

Close-up of a white textured surface, likely a painted wooden or wall surface.

White

A close-up photograph of a textured, beige surface, likely wood or a similar material.

Hickory

Dark wooden surface with a subtle wood grain pattern.

Espresso

Close-up of a wooden surface, showing the wood grain and texture in a warm brown color.

Kolonial - Oak

Close-up image of a light-colored wooden surface with horizontal grain lines.

Paintable Stainable

Close-up of a wooden surface with horizontal grain lines

Light Oak

Close-up of a wooden surface with a brown finish and visible wood grain.

Walnut

Dark, grainy surface possibly indicating a night sky or unlit area.

Midnight Black

Glass Options

The type of glass used will have a direct effect on the energy efficiency of your windows and doors.

View Different Glass Options
View Different Glass Options

Grille Options

The beauty of your windows can be enhanced through traditional or contemporary grilles.

View Window Catalog
View Window Catalog

The Benefits of Choosing NPWD

Excellent Quality Products

Highest Quality Craftsmanship

5 star Quality & Service

Well-Trained Installers

Commitment to Customer Satisfaction

Award Winning Company

Over 30 years of Business

Great Warranty

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Request A Free Quote

Frequently Asked Questions

Still have questions? Take a look at the FAQ or reach out to our staff who is available to answer your questions and concerns.

  • At Northern Performance Windows & Doors (NPWD), we offer a wide selection of vinyl and wood windows in a variety of styles and sizes. Our windows are engineered for long-lasting durability and low maintenance, and are rigorously tested and certified by ENERGY STAR® and the Canadian Standards Association (CSA). From design through installation, we attend to every detail to deliver superior performance, energy efficiency, and year‑round comfort in every season and climate.

  • Yes. We offer professional installation all year-long. Our processional installation includes:

    • Premium expansion foam insulation around all perimeters

    • Primed finger-joint pine trim for a clean, professional finish

    • High-grade exterior caulking for superior weatherproofing

    • Removal of construction debris

    All of our installers are in-house employees — never subcontracted — ensuring consistent quality and accountability. Your safety, and that of our team, is always a priority. We carry full liability insurance, and our team is trained and certified under WHMIS and Working at Heights regulations.

  • Yes — we offer supply-only products to our customers. Contact one of our experienced sales staff, and we’ll help you choose high-quality, energy-efficient windows and doors that meet your needs.

  • We have an arrange of windows that are made in Canada and built for long-lasting durability, low maintenance. They are rigorously tested and certified by ENERGY STAR® and the Canadian Standards Association (CSA). These styles include,

    • Picture Windows

    • Casement Windows

    • Awning Windows

    • Bay Windows

    • Bow Windows

    • Slider Windows

    • Hung Windows

    • Shaped or Architectural Style Windows

  • Our window prices vary based on size, type and style. Because replacing windows is a significant investment—often only done once or twice while you own a home—it’s important to choose durable, long-lasting products. We work closely with each homeowner to ensure their investment meets their needs and budget. If desired, we can also plan a staged window upgrade over several years so the right products are added gradually while staying within a set budget.

  • For the past 35 years, Northern Performance Windows & Doors delivers professional window and door installation, replacement, and repairs across Simcoe County and Muskoka, including Barrie and Orillia. Whether you’re boosting curb appeal, increasing energy efficiency, or choosing durable, stylish products, our experienced team handles every job with precision and care. We stand behind quality craftsmanship and dependable service to ensure your project looks great and performs well for years to come.