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5 Questions You Should Ask Your Window Contractor

Take the time to carefully screen potential replacement window contractors if you’re planning a window replacement. When interviewing potential contractors, here are some of the questions you should ask:

5 Questions You Should Ask Your Window Contractor

  1. Are You Licensed and Insured? A license to work in your area indicates more than just a contractor’s legitimacy. It is your assurance that they comply with all requirements and applicable building codes. Likewise, proper insurance – which should include both general liability insurance and workers’ compensation – is your guarantee that you won’t be held liable in case of accidental property damage or worksite injuries.

  2. What Kind of Glass Packages Do You Offer? Windows are mostly made of glass, so hiring a contractor that offers insulated glass packages can help ensure energy-efficient replacement windows. Renewal by Andersen® windows feature High-Performance™ Low-E4® glass packages, all of which have dual-panel assemblies and low-emissivity (Low E) coatings that help prevent heat transfer. Heat transfer causes heat loss on cold days and heat gain on hot days, both of which lead to higher energy consumption.

  3. What Frame Materials Do You Offer? Frame material is just as important as glass quality. Poor frame insulation defeats the purpose of good glass. With typical wood and vinyl frames, you may have to make compromises with performance, insulation or maintenance. But not with our Fibrex® material frames. The combination of wood fibers and proprietary polymers combines the strength and durability of wood with the low-maintenance benefits of vinyl.

  4. Do You Customize Windows? Your home deserves the best, and off-the-rack replacement windows are far from that. Custom windows and replacement patio doors give you a lot more flexibility with the style, colors and finishes you want. Customization eliminates modification, resizing or filling in your existing window openings. The snug fit helps preserve your home’s original structure – perfect for historical restoration or if you have a permanent exterior like brick – and improves your home’s energy efficiency.

  5. What Kind of Warranties Do You Offer? Your replacement windows should come with strong warranties covering both materials and workmanship. Renewal by Andersen offers one of the strongest window warranties in the industry, which includes 20-year coverage on all glass and Fibrex components, as well as an unparalleled warranty on our installation work.

To learn more about our replacement windows and patio doors, call Renewal by Andersen of Seattle today at (206) 686-7733, or fill out our contact form to schedule a free in-home consultation. We serve homeowners in Seattle, WA and other areas.


"We were very pleased with the process. Our windows are beautiful, and we are very happy we made the decision to choose Renewal by Andersen."

Tom | Seattle, WA
November 10

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