5 Questions to Ask Your Window Installer

Before you fork over any cash, here's what you should discuss with your installer.

1. How long will the project take? A good crew can install ten 3-by-5-foot double-hung replacement windows in a day.

2. What level of service will you provide? The installer should remove the old windows and other debris (what will they charge for that, if anything?) and protect your home and landscaping.

3. Is your work certified or factory authorized? Installers may be certified by InstallationMasters (opens in new tab), which is good. But factory-authorized installers are better because they have been trained to install a specific product.

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Note: Contractors doing work in a home (or child-occupied building) built before 1978 that will disturb painted surfaces must be certified by the Environmental Protection Agency as a lead renovator (opens in new tab). If your project is affected, check to see whether installation will cost more.

4. What if something goes wrong? Make sure you know whom to call. If the company that sold you the windows subcontracted the installation to another company, do you call the salesman or the installer?

5. What warranties will I receive? Most manufacturers guarantee their products for ten to 20 years (usually 20 years for glass and ten years for other components), assuming "proper installation." You may get a better warranty with factory-authorized installation.

Patricia Mertz Esswein
Contributing Writer, Kiplinger's Personal Finance
Esswein joined Kiplinger in May 1984 as director of special publications and managing editor of Kiplinger Books. In 2004, she began covering real estate for Kiplinger's Personal Finance, writing about the housing market, buying and selling a home, getting a mortgage, and home improvement. Prior to joining Kiplinger, Esswein wrote and edited for Empire Sports, a monthly magazine covering sports and recreation in upstate New York. She holds a BA degree from Gustavus Adolphus College, in St. Peter, Minn., and an MA in magazine journalism from the S.I. Newhouse School at Syracuse University.