Schedule a Free Consultation

Causes of Rattling Windows and How To Fix Them

Rattling windows are downright annoying and disruptive. This usually happens to older windows, where the glass has traveled down the window pane, causing the top of the pane to become thinner than the bottom. Wood windows are also prone to rattling, especially since wood can warp and shrink with the weather.  

Causes of Rattling Windows and How To Fix Them

Today, Renewal by Andersen® of Rapid City provides an overview of why your windows are rattling and how you can fix them. 

Loose Glass and Sash

One of the common reasons for rattling windows is loose glass and sash. Over time, your windows are exposed to many weather elements. They eventually become weak and damaged until they don’t properly fit in their track, causing them to rattle. To repair this issue, you will need to add caulking. By using a putty knife to maneuver, apply the caulk to all cracks and edges of the window. Make sure that all the cracks are filled and that there are no gaps. If there is excess caulk, be sure to soak a rag in vinegar and wipe it on your window frames or glass. 

Damaged Mortice Plates

Mortice plates are catches to help you secure your windows when they are shut. However, if they end up damaged or become loose, your window may not properly close and eventually rattle. As such, try removing the plate and fitting it again to stop your sash windows from rattling. If it’s properly fitted, the rattling should stop. Dismantling and fixing a window can be a complicated repair job, so be sure to get in touch with a professional to do it for you. 

Rotting Windows

Without regular maintenance, wood windows may deteriorate and flake. Rainwater can also rot the wood, causing the timber to soften and rot gradually. As it no longer fits properly in the frame, damaged timber causes windows to rattle. Gaps may also appear, letting the outside air enter your home and making you uncomfortable. The best way to fix this issue is to have your wood window replaced entirely.

If your windows continue to rattle no matter how many times you repair them, consider hiring a window company to have them replaced. Installing new windows, especially those made of better framing materials like Fibrex®, can resolve the issue of rattling and give you peace of mind. Thus, reach out to the window pros at Renewal by Andersen of Rapid City as soon as possible. Call us today at (605) 341-7831 or fill out our contact form to set an appointment. We proudly serve homeowners in Rapid City, SD.


"We recently replaced all of the windows in our home. I was most impressed with the friendly staff who knew what I wanted before I did. They seemed to be able to find the perfect window for each one we replaced. We are very pleased with the result. From beginning to end they were professional and helpful. I would highly recommend Renewal by Anderson."

Sheila And Doug Cain
May 15

View All Reviews