How to Fix a Commercial Window That Won’t Close All the Way

Commercial windows that won’t close all the way can pose significant problems, affecting security, energy efficiency, and indoor comfort. Addressing these issues promptly is crucial for maintaining a safe and functional workspace. Here’s a step-by-step guide to help you troubleshoot and fix a commercial window that won’t close properly.

Step 1: Identify the Type of Window

First, determine the type of commercial window you’re dealing with. Common types include:

• Fixed Windows: Non-operable windows that don’t open.

• Tilt-and-Turn Windows: Versatile windows that can tilt inward or open fully.

• Horizontal Sliding Windows: Move horizontally along a track.

• Vertical Sliding Windows: Operate like double-hung windows but are often larger.

• Casement Windows: Open outward with a crank.

Step 2: Inspect for Obstructions

Check for debris, dirt, or other obstructions in the window track or frame. Clean the tracks thoroughly using a vacuum cleaner and a brush. Pay special attention to corners and hard-to-reach areas where debris can accumulate.

Step 3: Check the Weatherstripping

Weatherstripping can become worn or dislodged over time, affecting the window’s ability to close fully. Inspect the weatherstripping around the window and replace any damaged sections. Commercial-grade weatherstripping can be purchased at hardware or specialized commercial building supply stores.

Step 4: Examine the Window Hardware

Loose or damaged hardware can also prevent a window from closing properly. Tighten any loose screws and check for bent or broken parts:

• For tilt-and-turn windows, inspect the tilt mechanisms and locking points.

• For sliding windows, ensure the rollers are intact and moving smoothly.

• For casement windows, inspect the crank mechanism and hinges.

Replace any broken components as necessary. Commercial hardware suppliers typically carry a variety of replacement parts for most window types.

Step 5: Adjust the Window Alignment

Commercial windows can become misaligned due to building settling or repeated use. Here’s how to realign different types of windows:

• Tilt-and-Turn Windows:

Adjust the tilt mechanisms and ensure the window sits properly in the frame.

• Sliding Windows:

Ensure the window sits properly on the track. If it’s not, lift the window out and realign it before placing it back on the track.

• Casement Windows:

Adjust the hinges if the window is off-kilter. Loosen the screws slightly, realign the window, and then retighten the screws.

Step 6: Lubricate Moving Parts

Friction can make it difficult for commercial windows to close fully. Apply a lubricant to the tracks, hinges, and any other moving parts. Avoid using oil-based lubricants as they can attract dust and debris, causing more problems in the long run.

Step 7: Check for Warping

Large commercial windows can warp due to environmental factors, preventing them from closing properly. If you suspect warping:

1. Measure the window frame and sash to confirm the warping.

2. Sand down any high spots or use a plane to create a smoother fit.

3. For significant warping, consider replacing the window sash or frame.

Step 8: Consider Professional Help

If you’ve tried all the above steps and your commercial window still won’t close all the way, it might be time to call in a professional. Window repair specialists have the tools and expertise to address more complex issues, ensuring your windows are secure and functional.

Preventative Maintenance

To avoid future problems, perform regular maintenance on your commercial windows:

• Clean the tracks and hardware periodically.

• Inspect and replace weatherstripping as needed.

• Lubricate moving parts every few months.

• Address any signs of warping promptly.

By following these steps, you can ensure your commercial windows close properly, maintaining the safety, security, and energy efficiency of your commercial space. For more information about how to fix a window that won’t close all the way or to schedule a consultation for repair, Contact The WRS Team! Our experts look forward to assisting you.