1 343 306 1026
1 343 306 1026

Casement Windows in Kingston, Ontario: Expert Installation by Kingston Window Pros

At Kingston Window Pros, we install casement windows that hinge at the side and open outward with a crank, offering a tight seal and unobstructed ventilation. These windows are a popular choice for Kingston homes due to their energy efficiency and clean, modern look.

Professional casement window installation helps ensure proper operation, a tight seal when closed, and long-term durability. We assess your existing opening, discuss suitable configurations, and complete the installation with careful attention to alignment, insulation, and finishing details.

If your casement window is difficult to crank, leaks air around the sash, or shows condensation between the panes, replacement may offer a practical upgrade. We’ll explain your options, outline the installation process, and provide a free quote for your Kingston project.

Quality Workmanship – We take pride in precise, professional window and door installations built to perform and last.


Honest, Transparent Pricing – We provide straightforward recommendations and clear pricing without unnecessary upselling.


Energy-Efficient Solutions – We help you choose energy-efficient windows and doors designed to improve comfort and reduce heat loss.


Attention to Detail – From accurate measurements to proper sealing and finishing, we focus on getting every part of the installation right.


Reliable Local Service – We understand Ontario homes and weather conditions and provide dependable service from the initial consultation through project completion.

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Professional Installation Standards

At Kingston Window Pros, we install casement windows with attention to fit, weather resistance, and smooth crank operation. We begin by checking the opening, surrounding structure, and existing frame before confirming measurements and installation requirements.

Our installation process includes:

  1. Accurate measurements

We take precise measurements of the window opening to ensure your new casement window fits properly. Measuring the width, height, and squareness of the opening helps prevent alignment issues and ensures a tight, energy-efficient seal.

2. Careful removal

When replacing an existing window, we carefully remove the old unit while protecting the surrounding wall, trim, and opening. This allows us to inspect the area for any damage, moisture issues, or gaps before installing the new window.

3. Level and plumb installation

Our installers carefully position the new casement window frame so it is level, plumb, and square within the opening. Proper alignment is especially important for casement windows because it helps the sash close evenly and seal tightly against the frame.

4. Secure fastening

We securely fasten the window frame according to the wall structure and manufacturer installation requirements. Proper fastening helps keep the window stable, prevents movement over time, and supports long-term performance.

5. Insulation around the frame

We insulate around the window frame to help reduce drafts and minimize heat loss. Careful insulation also helps fill small gaps between the window and wall opening for improved comfort and energy efficiency.

6. Weatherproof exterior sealing

We apply exterior-grade sealant around the window joints and trim to help protect your home from rain, wind, and moisture. Proper weatherproofing helps reduce the risk of water infiltration and improves the long-term durability of the installation.

7. Crank hardware adjustment

Once the window is installed, we adjust the crank and hinge hardware to ensure smooth and reliable operation. This helps the sash open and close properly while creating an even, tight seal when the window is fully closed.

8. Final inspection

Before completing the project, we inspect the window's seal, latch, crank, and overall operation. We make sure everything is properly aligned, securely installed, and functioning as intended before the installation is complete.

Casement Window Options

We install casement windows in a range of configurations to suit different rooms and ventilation needs.

Single Casement Windows

A single operable sash that cranks open outward, offering full ventilation across the entire window opening since there’s no sash overlap like sliding styles have. This makes casement windows a strong choice for capturing breezes.

Paired or Twin Casement Windows

Two casement sashes installed side by side, either both operable or one fixed and one operable, often used to create a wider window opening while retaining the tight seal casement windows are known for.

Casement Windows with Transoms

A casement sash paired with a fixed transom window above, adding height and natural light without adding another operable unit to maintain.

Important considerations include:

  • Crank hardware quality and placement
  • Screen configuration (interior-mounted, since the sash opens outward)
  • Glass package and energy performance
  • Frame material and colour
  • Locking hardware, since casement windows typically use a multi-point lock when closed

Why Homeowners Choose Kingston Window Pros

We combine accurate assessments, skilled installation, dependable products, and knowledge of Kingston-area homes. Our process helps homeowners address drafts, damaged frames, failed seals, and outdated windows with practical options suited to their property.



Professional Installation

We begin by inspecting the existing window, frame, sill, trim, and surrounding wall area. This helps us identify air leakage, moisture damage, operating problems, and installation issues before recommending repair or replacement.

Our installers take precise measurements before ordering products. During installation, we level and secure each unit, apply appropriate insulation, and seal the perimeter to reduce drafts and water entry. We also check that windows open, close, lock, and drain correctly before completing the work.

For repairs, we focus on the faulty component rather than replacing the entire window when a practical repair can restore performance. We can assess issues such as broken hardware, damaged screens, failed seals, and difficult operation.

Quality Materials

We help homeowners compare materials based on energy performance, durability, maintenance, appearance, and budget. Available choices may include insulated glass units, vinyl frames, reinforced hardware, weatherstripping, screens, and exterior trim suited to the project.

Proper glass selection matters in Kingston’s changing seasons. We can discuss options such as double- or triple-pane glass, low-emissivity coatings, and gas-filled insulating spaces, while considering window orientation and room use.

We select products that match the opening and installation requirements instead of relying on a one-size-fits-all approach. We also explain expected maintenance, warranty conditions, and the difference between repairing an existing unit and installing a replacement.

Local Kingston Service

We serve homeowners throughout Kingston, Ontario, and understand that local homes can vary widely in age, construction, and window design. Older properties may require careful measurements and trim adjustments, while newer homes may need replacement units that match existing finishes and hardware.

Our service covers planning, product selection, installation, repairs, and cleanup. We communicate about measurements, product availability, scheduling, and any conditions that could affect the work.

When we assess a window, we consider Kingston’s seasonal temperature changes, wind exposure, moisture, and the condition of the surrounding structure. This local approach helps us recommend work that addresses the actual source of the problem rather than treating only the visible symptom.

Our Casement Window Installation Process

1. Free Consultation

We begin by discussing your goals, style preferences, and the condition of your existing bay or bow window. Our team will help you determine the best configuration for your home, including fixed or operable panels, while answering any questions you have about the project.

2. Accurate Measurements

Kingston Window Pros measure the opening at multiple points to confirm width, height, and squareness.

3. Choosing Your New Window

We'll help you select a bay or bow window that complements your home's style, needs, and budget. Together, we'll review frame materials, energy-efficient glass options, panel configurations, and features such as roof caps or window seats.

4. Professional Installation

Our experienced installers carefully remove the existing window and inspect the opening before beginning the installation. We confirm that proper structural support is in place, then install and secure your new bay or bow window level, plumb, and properly aligned across every panel.

5. Sealing and Finishing

Once the window is securely installed, we carefully seal all seams and joints to help protect against drafts, moisture, and water infiltration. We complete the installation with professional flashing and trim work around the perimeter for a clean, finished appearance.

6. Final Inspection

Before completing your project, we perform a thorough inspection of the entire installation. We check operable panels, seals, structural support, and finishing details to ensure your new bay or bow window is secure, properly functioning, and ready to perform for years to come.