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Signs of Poor Window Installation Quality  

5 minute read


Of course, you’re being as careful as you can to not overlook any details in purchasing your home’s new high-performance, energy-efficient replacement windows. It’s a substantial investment, so you’ve researched and chosen a top-quality manufacturer. Your new windows are arriving today! You’re delighted to see that they’re as beautiful and high quality as you anticipated. But, as the windows are being carried into your home, it occurs to you that you should have gotten more information about the installation company.

How Can You Tell That Your Windows Are Installed Properly?

Fast forward to a few months after your window installation date. Your window choices for every room and every window were ideal in form, fit, and function. But something is not right. There are emerging issues with some of the windows. They seem to be due to window installation problems. You do recall wishing you had gotten more information about the installers, maybe from some customer reviews, etc. Now you may be noticing these and other common indicators of window installation problems:

Air Leaks Around Windows

Drafty windows force your HVAC system to work harder to cool or heat your home. When windows are not installed properly, electricity bills can soar, making it too difficult to regulate indoor temperatures. So, you should call the installation service if there are drafts around your new windows.

Poor Caulking Around Window Seams

Caulking helps hold the window frame in place, seal out air and moisture, and block heat transfer inside or outside your house. Unprofessional caulking indicates that the installer was either not careful enough or not skilled enough to deliver the first-quality job. Bad caulking can cause major air and water leaks that can increase your electricity bills, reduce your comfort level in your home, cause property damage, and promote mold growth in and on walls and structural supports in the walls.

Gaps Around Window Edges

Gaps around the frames are obvious signs of bad window installation. If you see gaps between the window sill and frame, that means that the installer did not make accurate measurements. This is a part of window installation that may seem simple enough but requires an experienced and skilled installer who is consistently meticulous in making and recording fine measurements for an ideal fit.

Windows Not Operating Properly

When a new window is not functioning properly, it may not open or close, or it may get stuck. That is most likely an indicator of an installation problem. Of course, you want your new windows to work, so you’ll need to contact the installation company and have them come out and correct the errors that are causing the window(s) to be inoperable.

Condensation Between Window Panes

Today’s energy-efficient replacement windows feature double or triple glass panes with inert gas fill between the panels as an insulator. If the seal between the glass panes of new window leaks, condensation may appear between the panels. This is likely due to rushed or inattentive installation that has not been done with the necessary care to make sure the seal is not damaged.

Water Damage Around Windows

Finding water damage is among the most serious evidence of poor window installation work. Water damage due to moisture leaking into a home around poorly sealed windows can lead to structural damage to your home and mold growth that is hazardous to your family’s health. If you find yellowish or brownish discoloration on the walls around or under your new windows or bubbled paint or wallpaper, this may be an indicator of mold caused by moisture due to poor-quality installation.

NOTE: Advanced windows are built with vents that deflect rainwater falling from above, but they do not prevent infiltration by water being forced up under them by a high-pressure hose during cleaning. Be careful to avoid this kind of incident, as it may cause a warranty issue.

Windows Not Level

If one or more of your newly installed replacement windows looks slightly crooked, it might be off-level. This can happen in poorly executed installations. It means that the installer neglected to perform the fundamental task of using a leveling tool to confirm that the window was level before securing it in place. You want your windows to work well and look great. That means they need to be level. Use a level to confirm that the window is not properly leveled, then contact the installer for a revisit to correct this grave mistake.

Choose A Top-Quality Window Installer

Buying top-quality energy-efficient replacement windows and then discovering one or more of the problems above after installation can cost you a lot of inconvenience, discomfort, and frustration. It can also cost a lot of money to repair damage resulting from badly installed windows. The solution is to prevent bad window installation work from happening in your home. You’ll need to do the same diligent research to select a professional, dependable, top-quality window installation service as you did when choosing the best window manufacturer.

Why Choose Advanced Window Products?

We have been a top manufacturer of energy-efficient replacement windows for western U.S. homeowners for more than 30 years. Our custom replacement window designers, engineers, manufacturing team, and certified installation experts are among the best and most dedicated to quality in our industry.

For information about energy-efficient replacement window installation, call Advanced Window Products at (801) 505-9622, or contact us online for a free onsite estimate!

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Reviews

Lanny Badten AvatarLanny Badten
I've been thinking about replacing my windows for awhile now but never quite got around to it. I was in a customers (I'm a handyman) home a few days back and noticed just how much nicer it felt in there since they had replaced their windows with the new energy efficient glass. A few days later a young man came to my door and gave me his sales pitch. Usually I just send them on their way, but somehow I liked his demeanor so I heard him out. Then after talking motorcycles for a bit, I agreed to meet with one of their sales reps. They called the next day and set up and appointment. At the appointed time Cassidy King came by and walked me through how their windows are manufactured and how she would take measurements of all of my windows and then give me a price that would be out the door so to speak. After that they would send out a fellow to take very accurate measurement and then they would build them custom fit to my home. When the build was complete (only a week or two as I recall) they set an installation appointment. Five guys showed up and went to work, positioning each window at the correct place it needed to be. Then they started removing the old windows and then installing the new. Having been in the trades for so many years, I watched them install that first window from start to finish. I was so relieved to see that they did it exactly as I would have done it myself. These five guys worked like a well oiled machine and each one knew exactly what his job was and they did it. It wasn't until they had cleaned everything up that they called it a day.At the end of the day all of the windows had been installed and the difference was felt immediately noticed. I no longer hear the cars that use my street and the F-35's flying overhead are now hardly noticeable. The next day a crew of two came back and trimmed everything out on the inside making everthing look great. I'm now on my third day of enjoying them and I notice that my A/C unit is cycling much less often then it was. Although I don't think I will need it, the lifetime warranty is a nice thing too! - 11/13/2025 
Ayrica Stoneman AvatarAyrica Stoneman
We love our doggie for insert! Chris and his crew did an amazing and quick job of installing. Easy process from start to finish! - 11/11/2025 
Kenny Dahl AvatarKenny Dahl
A Pleasure to work with from start to finish. Ordered my windows in the late summer from Ken and recently had them install by Don & his crew. They did all 11 in 1 day. - 11/11/2025 
carlie gebhardt Avatarcarlie gebhardt
Brad and Heliman installed our new windows and were fast and kind. Brad caught a measuring issue with our new sliding glass door… it had to be re-ordered and installed at a later date but our installers and the company handled it for us with no other issues. We are very happy with the customer service, installers and product. Thanks to Brad and Heliman for taking such good care of us. - 11/10/2025 
Rebecca AvatarRebecca
Getting new windows was actually a fun experience, believe it or not. Jordan is not a typical pushy sales person. He provided information, options, and answered questions without pressure. He really cares. The installers were also kind, respectful, and hard working. We enjoyed having them there and visiting from time to time. Our house is a little unique with a pitches, slick, metal roof. Javier got up there in his bare feet and took care of business. He and Willy worked so well together. Willy called to let me know about times and check on things. Thank you everyone!!! - 11/10/2025 
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Sarah 5678 AvatarSarah 5678
Advanced’s commitment to quality craftsmanship and customer satisfaction is top-tier! - 11/06/2025 
Shannon Saldivar AvatarShannon Saldivar
Quick and painless process. Loved the team, very upfront and honest. Would recommend to family - 11/06/2025 
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