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high Performance
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    Finding the perfect replacement casement windows for your new home or business can be quite a challenge.

    When it comes to selecting high-performance casement windows, it’s not just about improving energy efficiency. These exceptional windows offer far more than insulation alone. They can enhance the amount of natural light in a room, control sound levels, and prevent condensation build-up. Allow us to delve deeper into what constitutes a ‘high-performance’ window, why it holds significance, and the numerous advantages it brings.

    Advantages of Casement Windows

    Ease of operation

    A single handle unlocks the multiple locking points. The strong Maxim-Series operator allows the window to open 90° effortlessly. The hinge design allows you to conveniently reach the exterior of the glass for washing when the window is open.

    Uncompromised premium hardware

    Stainless Steel, powder-coated brass fittings to prevent rust and corrosion in most vulnerable areas.


    Multiple locking points on the sash mean that the window is secure for tamper resistance and withstanding strong wind pressures.

    Fusion welded for strength

    Sash and frame corners are miter-cut and welded, eliminating caulking and joints that may loosen and leak.

    Triple seal design

    The sash is designed to seal against the frame with three continuous seals and a dual cavity, pressure-equalized configuration.

    Multi-chambered walls

    Double-wall construction increases strength, permits thorough water drainage and increases energy efficiency.

    Interior glazing

    This glazing style presents a seamless sash to the outside elements and the effects of potential tampering.

    Well-proportioned sight lines

    provide for an architecturally pleasing result.

    Glass options

    include double glazed, triple glazed, Low E coatings, gas fill & different grill options.

    Longevity of vinyl

    Literally carefree, our windows resist corrosion from pollutants, never need painting and can be cleaned with soap and water.

    Key Feature of Our Casement Windows

    Application : Ideal for new construction, replacement

    Frame : Welded construction with a 3.25″ width

    Sash : Welded for enhanced durability

    Weather Seals : 3 continuous seals (2 compressions, 1 fin-type) around the entire sash perimeter

    Glass Thickness : 1″ (25 mm); Optional 1 3/8″ (35 mm) triple glazed
    Glass type : Insulated glass with decorative and energy efficient options
    Glazing stop position : Interior
    Sizes : Custom to suit your needs

    Colours : A variety of paints and Double Nature stain options available.

    Performance Data

    Visual TransmittanceU-Factor (W/m2K)SHGC (Solar Heat Gain Coefficient)ER (Energy Rating)
    Casement0.24 - 0.510.99 - 1.580.13 - 0.4617 - 39
    Fixed Casement0.40 - 0.610.94 - 1.560.18 - 0.5420 - 45
    Awning0.33 - 0.511.05 - 1.600.15 - 0.4616 - 39

    Insulated glass with Low E, Argon filled & Insulated Spacer

    System Options

    • Installation accessories: brick molds, jamb extensions and drywall returns
    • Reinforcement: steel, where necessary
    • Factory-mulled units: offered for improved sight lines

    Test Results

    Possible RatingSingle SliderDouble HungCasementTilt & Turn
    Air TightnessA1-A3A3A3A3A3
    Water TightnessB1-B7B2B2B7B7
    Triple Glaged (35mm OT)C1-C5C4C3C4C5

    The higher the number, the better the performance relative to Standard CAN/CSA A440-M90

    Let Bonnechere Valley Windows + Doors show you the many options available.

    I want to personally invite you to explore the wonderful world of windows with Bonnechere Valley Windows. We have a dedicated team of professionals who specialize in designing, manufacturing, and installing a wide range of window and door styles. From the sleek European Tilt & Turn type to profiles sourced from the esteemed Canadian vinyl extruder P.H. Tech, we offer an array of options to suit your taste and preferences.

    The best part? We are more than happy to provide you with a free estimate. Whether you’d like to meet us at your home or visit our Eganville showroom, we’re available on weekdays, evenings, and even weekends to accommodate your schedule.

    Why wait? Reach out to us today and secure your free, no-obligation appointment. Let’s embark on this exciting journey together!