Are you planning to install new windows in your home to improve the looks of your home and to start saving money in energy bills? We know shopping for a replacement window installer can be daunting. Where do you start so you can find a quality and dependable window vendor to replace windows in your home?

replacement window installer working on sash of window

We can help! Here are the top areas you should pay attention to when you are looking for a replacement window installer:


First, make a list of replacement window installers. We can help you determine a list of window contractors in your area. 


Determine the installer’s credentials. If not listed on their site, you may need to call and ask.

License: A good window installer will hold a contractor license. You can verify by license number on your state government’s website and you should also ask the vendor upon hiring to provide you a copy of the license.  

Permit: Also, check your local building agency to be sure you understand what is a code-compliant installation and what the process is for permitting. Usually, window replacement requires a building permit, unless you are only swapping out only the sashes. Once you replace the entire window, frame and all, you usually have to get a permit

Certification: You should also consider if your window installer is trained and holds any certification from the window manufacturer.

Bonding and Insurance: Last, you should also determine they are fully bonded and insured. If a replacement window installer is bonded, you are financially protected should they do a poor job or don’t finish the project. Insurance protects your installer as well as your property in case injury or damages occur during the project. Upon agreeing to hire a window installer, you should be provided proof that they are bonded and insured.

Referrals and Reviews

Review the replacement window installer's website and search results related to that company to find out how long each has been in business and any other experience-related information. Review online reviews, including the Better Business Bureau (BBB). You can also ask the window installation company to provide you references. Make sure you take the time to seek out your friends and neighbors for their recommendations and to check referrals.

Financing Options

There are a few options to finance replacement windows, including paying outright from personal savings or a loan you take out or financing through the window vendor themselves. If you want to use a window company’s finance offering, it is important to know finance options as you are shopping for a window replacement installer.


Ask what window warranties the replacement window installer offers. You’ll want to look at what things the warranty covers and what it doesn’t. Know if the warranty covers repairs and replacement and for how long. Once you have a contracted agreement with a window installer, get the warranty in writing. 


replacement window installer in front on new window


Most window companies will schedule an appointment to see your property so they can measure and accurately calculate prices. It is wise to get many estimates is wise so that you can properly compare options. Make certain that if you are comparing quotes from various vendors that the window products are the same or have a similar set of features, double pane or triple pane for example.

Final Word

Now you know what to consider as you are looking for a replacement window installer. You are well on your way to enjoying beautiful new windows that add value to your home and save you money. 

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