4 Signs of a Bad Window Installation Job

4 Signs of a Bad Window Installation Job

October 30, 2019

Window installation is a job that’s best left to professionals. But before hiring a contractor to carry out this type of work, make sure that they are qualified and experienced in installing windows.

Once the project is done, carefully check every window they have installed. Ensure that everything is in order and the installation is done according to industry standards. Watch out for signs of a bad window installation job, such as the ones listed below.

Messy Caulking

Proper application of caulking is essential for weatherproofing and sealing your window. If the caulking on your window looks sloppy, it may eventually result in leaks.


Drafts could mean insufficient insulation, and these usually results in water or air entering your home. Additionally, this can also lead to higher energy costs. To know if your windows contractor did a good job, try to observe if there are drafts when you walk by your window.


If you notice fog between the window panes, this can either be due to a damaged seal or poor window installation quality. Have it checked by a professional so that you can pinpoint the reason behind this issue. Don’t hesitate to ask your original contractor too, as they may be willing to fix any error that must have happened during the installation.

Difficulty in Operating the Window

If it takes a lot of effort for you to open and close your window, there might be something wrong with how it was installed. Failure to address this kind of issue can lead to bigger problems, and your window might become fully inoperable.

Renewal by Andersen® of Milwaukee has completed thousands of installation projects involving doors and window products. To learn more about our services, call us at (262) 522-3034 or fill out our contact form. We serve customers in Milwaukee, Wisconsin.

Hear From Our Customers

This was a great crew to work with. Both the original install manager we worked with (Jay) and the install team (Daniel, Mason, Tony, Ethan, and Jose). Everyone was very professional and knowledgable. They answered all my questions and the end result on the house is great. In 3 days they replaced an old bay window with a new bay window, a set of french doors on the patio with a sliding patio door, and our old front door with a new front door and storm door.

Jason and Brett did an awesome job installing our doors. We had separate installers a month earlier for our windows who also did a fantastic job. They were all very professional and cleaned up almost better than the area looked before the installation! Since these were both jobs that took more than one day the installers were great at keeping us informed on the status of where the project was at along the way.

I cant express how happy we are with choosing Andersen for our window installation. Our sales representative was knowledgeable with product and answered any questions we had without hesitation. I did also fill out a survey that was sent in an email, but sadly I failed to personally name the two gentlemen that performed the actual installation. Barrett and Francisco were our guys, and let me tell you, they were outstanding!!! They did Excellent work and were professional as well as efficient and made this a smooth, none evasive process for us. I strongly recommend this company and these installers to anyone in need of windows!!! My husband and I could not be more pleased we chose Andersen for replacing our windows!!!

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