broken rv window, picture of a broken rv window on a motorhome

How To Fix Broken RV Windows

Whether it’s because you drove too close to a large branch or something struck it (a baseball, maybe?), you’ll encounter a broken rv window at some point. So do you call an auto glass repair center to have them fix it?

Don’t bother. If it’s not the windshield, it’s unlikely they can do anything. Most aren’t equipped to handle RV windows. But that’s okay. Most of the time, you can do the work yourself. You’ll have to buy the new window, but at least you save the labor costs.

How do you know which window style to pick? Or which trim color to use? If you want to keep it matching with the rest of the vehicle, buy the window through your trailer manufacturer. Once you have the unit, you can get started.

The inside of the window frame contains several screws holding it in place. With someone on the outside to hold the window, take out those screws as well as the interior side of the frame. From the outside, use a putty knife to pry that half of the frame from the siding. Once the entire seal is broken, you can remove the old window and set it aside.

Before putting in the new one, remember to clean the opening. You can use the putty knife to scrape away the old seal. Make an extra effort to get it all off. You need to make sure the new window will seal correctly and there aren’t any places where water can leak inside.

With the old seal gone, you can now put in a fresh layer of butyl putty tape around the opening. One layer will usually be enough, but add additional ones if needed to ensure a smooth seal.

Now you can set the new window in the opening and press it into the frame. Your helper on the outside should hold the window steady while you reinstall the screws on the inside frame. When you tighten the screws, think of changing a tire on your car. Alternating from side to side will keep the seal from becoming too compressed at any one point. It’ll also lessen your chances of cracking the frame or stripping a screw. The window should be tight in its frame – but not tight enough to break anything.

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