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How to Spot a Bad Window Installation

Your windows are only as good as their installation. So if you want to get the most out of all the features and advantages your new windows can offer, you’ll have to work with a reliable window professional. Otherwise, you get poor workmanship, which is represented by these issues. 

Bad Window Installation

Visible Gaps in the Windows

When windows are poorly installed, it shows. Some of the telltale signs are obvious, such as gaps between the frames and the windowsill. This can only mean the original installer has failed to size the new windows correctly. When overlooked, these gaps will allow valuable heating and cooling energy to escape your home, compromising indoor comfort and driving up energy costs. This won’t be an issue if you choose Renewal by Andersen® of Montana. Our skilled and certified technicians always take precise measurements, allowing us to create replacement windows that will fit perfectly upon installation.


A newly installed window shouldn’t be letting drafts into your home. But if this is what’s happening with the new unit, it’s a clear indication that your windows weren’t sealed correctly. You can avoid air leakage simply by working with a trusted window specialist like Renewal by Andersen of Montana. Our certified installers fill any gaps between the new windows and frames with a specially formulated insulating foam, which effectively prevents air infiltration. With these durable, airtight seals, you can expect your windows to provide worry-free thermal performance.

Troublesome Window Operation

The fact is that opening, closing or locking your new windows shouldn’t take much effort. But if they’re prone to sticking or jamming, it’s possible that the windows haven’t been installed properly. You’ll never have to worry about this if you pick Renewal by Andersen of Montana. We take care to realign and readjust the levels so that your new windows fit just right. We’ll also demonstrate how they operate so you can see (and try) for yourself whether the units are working the right way.

Window Installation Done Right

Renewal by Andersen of Montana remains unrivaled when it comes to high-quality window installation. Delivering proper, timely and efficient window services — that’s what we’re all about. Call us today at (406) 259-3944, or fill out this contact form to request a quote. We take pride in serving homeowners in Billings, MT, and other areas in Yellowstone County.


"I highly recommend Renewal by Andersen. We were treated well and everything went smoothly from start to finish. The company kept in contact with me before, during, and after the installation and let me know what to expect. I'm in love with my new windows! I will be using this company again when we refinish our basement. "

July, 21

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