6 Tips on Shopping for Vinyl Windows

Properly installed vinyl windows can deliver major energy savings—and a look that's convincingly like wood. Here, five things to hunt for in a quality unit

1. Go for Top-Quality Construction

The best vinyl has additives that protect against brittleness, yellowing, or fading. Sash and frame extrusions should have welded corners and numerous internal air chambers for strength, rigidity, and insulation.

2. Assess the Glass

To minimize heat loss and gain, a quality window sandwiches inert gas and "warm-edge" spacers between double panes. Low-e coatings reflect heat and protect furnishings from fading.

3. Study the Warranty

Look for a "double lifetime" warranty that covers potential performance problems, such as condensation between the panes, and can be transferred to the next homeowner.

4. Read the Fine Print

Look for an Energy Star–qualified unit; its efficiency and airtightness have been independently verified by the National Fenestration Rating Council. Windows (like this one) with Gold Seal Certification from 
the American Architectural Manufacturers Association have also passed strict structural-integrity tests.

5. Check the Care Instructions

Double-hungs that tilt in are easiest to clean (no need for a ladder), as are double panes with grilles sandwiched in between, as shown. Never use a pressure washer, which can damage seals and break glass.

6. Consider Color

Premium windows can be ordered with a different color on the exterior to match or contrast with house trim.