How to Fix a Casement Window That Won't Close: A Step-by-Step Guide

Casement windows are a popular choice for homeowners due to their energy efficiency, security, and unobstructed views. However, like any other window type, casement windows can develop issues over time. One common problem is a casement window that won't close properly. This can be frustrating and can lead to energy loss, drafts, and even security concerns. In this blog post, we will provide a comprehensive, step-by-step guide to help you diagnose and fix a casement window that won't close.

Identifying the Problem

Before diving into the solution, it's essential to identify the root cause of the problem. There could be several reasons why your casement window won't close, such as:

1. Misaligned hinges or hardware

2. Swollen or warped window frame

3. Damaged or worn-out weatherstripping

4. Loose or stripped crank handle

5. Obstructions in the window track

Step 1: Inspect the Window for Obstructions

First, inspect the window for any visible obstructions that might be preventing it from closing. This could include debris, dirt, or even a broken piece of hardware. If you find any obstructions, carefully remove them and try closing the window again.

Step 2: Check the Hinges and Hardware

Next, inspect the hinges and hardware for any signs of wear, damage, or misalignment. If the hinges are loose or misaligned, they may need to be adjusted or replaced. To do this, follow these steps:

1. Remove the window sash from the frame by unscrewing the hinge screws.

2. Inspect the hinges for damage or wear. If necessary, replace them with new ones.

3. Reattach the sash to the frame, ensuring the hinges are properly aligned and tightened.

If the hardware is damaged or worn out, you may need to replace it. Consult your window manufacturer for the appropriate replacement parts.

Step 3: Examine the Window Frame

If the problem persists, examine the window frame for signs of swelling, warping, or damage. Wooden window frames can be particularly susceptible to these issues due to moisture exposure. If you find any issues with the frame, you may need to repair or replace it.

To repair a swollen or warped frame, follow these steps:

1. Remove the window sash from the frame.

2. Use a hand plane or sandpaper to carefully shave down the swollen or warped areas until the frame is even.

3. Apply a wood sealant or paint to protect the frame from further moisture damage.

4. Reinstall the window sash and test the window for proper operation.

Step 4: Inspect the Weatherstripping

Damaged or worn-out weatherstripping can also prevent a casement window from closing properly. Inspect the weatherstripping for any signs of wear or damage, and replace it if necessary. To do this, follow these steps:

1. Remove the old weatherstripping by gently pulling it away from the window frame.

2. Clean the area where the weatherstripping was attached, removing any dirt or debris.

3. Measure and cut the new weatherstripping to the appropriate length.

4. Apply the new weatherstripping according to the manufacturer's instructions, ensuring a tight seal.

Step 5: Check the Crank Handle

If the crank handle is loose or stripped, it may not be able to properly operate the window. To fix this issue, follow these steps:

1. Remove the crank handle by unscrewing it from the window operator.

2. Inspect the handle and operator for damage or wear. If necessary, replace the handle or operator with a new one.

3. Reattach the crank handle, ensuring it is tightly secured.

Step 6: Clean and Lubricate the Window Track

Finally, if the window track is dirty or poorly lubricated, it can prevent the window from closing smoothly. To clean and lubricate the track, follow these steps:

1. Remove the window sash from the frame.

2. Use a brush or vacuum to remove any dirt or debris from the track.

3. Apply a silicone-based lubricant to the track, ensuring it is evenly distributed.

4. Reinstall the window sash and test the window for smooth operation.

By following these steps, you should be able to diagnose and fix a casement window that won't close. Remember, regular maintenance and inspection of your windows can help prevent these issues from occurring in the first place. Keep your casement windows in top shape to enjoy their benefits for years to come.

Casement Window

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Casement windows are the most common style of window. They feature hinged panels that swing open and closed. Casement windows are available in single panels or multiple panels. The direction a door swings, either to the right or the left, is called the handing. In addition to handing, window are identified as either inswing or outswing depending on whether they open into the house or towards the outside.

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This newly built private house is in Sydney, Australia. The area occupied by the fenestration system in our scheduled design drawings was up to more than 110 square meters. A wide range of design details made the perfect mix of modern aesthetics and traditional sophistication, the simulated vertical hung windows with tilt & turn opening systems in this home are absolutely breathtaking. SDLS (Simulated Divided Lites with Spacer Bar) brings some historical vintage feeling to the whole building without losing any energy saving performance. Long narrow fixed windows creating larger-than-life expenses, coupled with German high-end systems made this project stand out from the rest.

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The client's idea was to maintain a certain vintage feel, and our aim was to meet the energy efficiency needs and standards of modern houses as much as possible while maintaining a retro design. Doorwin’s 61S simulated hung windows with tilt & turn openings is a respectful modernization of a classic architectural masterwork.

Why choose the tilt and turn opening method?

Because it generally has better air seals than sliding, single hung, or double hung window frames. Tilt and turn windows form a complete seal when fully closed, this means they are less prone to water leakage, and cold draughts and you’ll keep more of your heating indoors where it belongs. They can be opened in the upper tilt way to ventilate at a minimum opening status and are easy to clean outside of the glass; when there’s a good day, they can be opened as normal inward casement windows.

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Huge, fixed glass walls up to seven meters long and two meters high bring great lighting and open views, making it really refreshing to the mind. Five meters high long narrow windows give the whole building a contemporary aesthetic.

Every window’s placement and shape not only add to the uniqueness of this home but also provide a more energy-saving ability for the owners.

Doorwin energy-efficient integrated glazing units feature double-pane glass, warm-edge spacers, argon gas fill, Low-E coatings, and fully tempered glass, they can not only create a comfortable and natural indoor environment but also save electricity bills and heating bills of more than 100 USD for the owner, it’s a real bargain compared to choosing a regular glazing set.

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Aluminum Door offered an air of uniqueness and elegance to a home. With their luxurious patterns and beautiful finishes, it provides this house with a bounty of aesthetics and security. Aluminum entry doors allow you to resist any weather extremes, corrosion, and pests. So aluminum is one of the most resilient and durable materials you can select for front doors considering the price/performance ratio.

With pieces of double panes, and Low-E tempered glass. The door provides a good insulation performance.

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In this project, we use SDLS (simulated divided lites with spacer bars), these bars permanently adhere to both sides of the glass, and spacer bars are installed between the glass, this is the most energy-efficient way to create the look of classical décor grilles. The windows in the bathroom bedroom and study have an Arch Transom Design, making these rooms, which are often used by the owner, have some traditional aesthetics.

BTW, Doorwin offers free design assistance, so if you need a custom design like this one, contact us right away and we will provide you with the most aesthetically and functionally pleasing design solution.

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For windows and doors, hardware is as important as the engine is to the car. The continuous technological innovation of the European hardware industry has strongly promoted the performance improvement and functional innovation of windows and doors. In this project, Doorwin uses Hoppe™ multi-point locks, hinges, and handles from Germany.

Multi-point lock systems provide not only the burglar-resistance but also a tighter compression seam, making the window keeps good energy-efficient performance. Together with Technoform Bautec’s insulation edge bond and sealant strips, these make up our products' top insulation and energy-saving performance.

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Before production, we will provide accurate sample drawings, which will clearly show the cross-sectional pattern, size, opening method and direction, pattern of the warm spacer, and the installation nodes. We will not go into production until you have signed off on the drawing to ensure that you receive a final product that meets the exact requirements of your project.

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Doorwin's professional packing system guarantees all products are delivered safely and without any damage. We apply a four-point packing system. Firstly, adhesive plastic film is applied on interior wood frames and exterior aluminum frames to avoid scratches on the surface. Then, a paper board is applied after we apply air bubble film surrounding the whole windows/ doors to avoid any destruction or clash. Lastly, we place them into a durable non-fumigation plywood crate to avoid any possible damage during transportation.

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