Working with the right contractor helps make sure that your window replacement project goes well. One of the best ways to assess a company’s quality is by asking the right questions. We share five of them here:

1. “Do you have the necessary credentials?” First things first: make sure the window replacement company you choose is licensed and carries two types of insurance: workers’ compensation and liability insurance. Working with a contractor with these credentials is necessary for your peace of mind.

2. “Do you have any references?” Contractors who have been in business for a while can give clients customer referrals, references and reviews. Clients who have worked with the company before can tell you about their experiences. References help homeowners figure out how trustworthy, organized and good customer service a company is.

3. “Can you give me an itemized window estimate?” Estimates should be precise and detailed. It should include a timetable, labor and product prices, post-installation cleanup and warranty coverage. A reliable window company should break down costs easily. Clarify any unclear or odd charges immediately.

4. “How long does window replacement take?” This is normally determined by the number of windows being removed and replaced. You may have to wait a long time if you ordered custom windows. The replacement process will normally take a day or two unless there are any unforeseen circumstances.

5. “Is disposal included in the service?” The old windows that used to be in your house have to go somewhere. Make sure to ask your contractors if they take care of removing and cleaning up old windows as part of their service. If the task isn’t normally included, you might have to pay extra.