What to Ask Your Window Contractor Before Your Project Starts

October 11th, 2019 by

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Installing replacement windows is complex work that requires the hand of an experienced professional. To ensure the best results for your project, it’s a good idea to ask your contractor a few questions before the work begins. 


In many states, contractors must have licenses. For your protection, make sure you hire a licensed contractor that carries valid insurance, which covers liability, workers’ compensation, and property damage. 

In addition, ask for manufacturer certifications. Choose factory-authorized installers, as they have undergone proper training to install the products they carry.


Not all contractors offer full services. Some offer both interior finishing and painting in their window or door installation projects. Make sure to ask what services are part of the project. Ensure that they’re added to the itemized estimate if they aren’t already there.


The contract should cover itemized estimates of expenses projected for your project. It must include parts, labor and even clean-up. A trustworthy contractor will be ready to give you the breakdown. 


Problems with your new windows patio doors may arise later. Ask your contractor for a detailed warranty policy in case you need it. Be sure to keep your contractor’s contact information in a safe place. If you notice drafts in your home a few months or even years after the windows were installed, you need to know whether the warranty covers that issue. Most manufacturers guarantee their products for 10 to 20 years assuming there was a “proper installation.” You may get a better warranty with a factory-authorized installation.

Turn to Renewal by Andersen of Portland for all your door and window replacement concerns. Give us a call at (503) 419-3960 for a free consultation. We serve clients in Portland and Wilsonville.