All Alpine products undergo extensive testing, which is performed by independent laboratories in accordance with industry certification requirements. Alpine is a member of, or has met the qualifications of, these performance and quality rating groups:
- ENERGY STAR® Windows Program of the Environmental Protection Agency and the U.S. Department of Energy
- National Fenestration Rating Council (NFRC) Certified
- Window and Door Manufacturers Association (WDMA) Member
- American Architectural Manufacturers Association (AAMA)
Not really. There are as many warranties as there are window manufacturers. Some brand name factory warranties cover just the sash and frame. The rest is left up to the local fabricator who may or may not cover it. Your warranty is only as good as the company behind it. With Alpine, your unit is warranted from the extrusion and parts to the glass and construction by our Lifetime Limited Warranty. It's one of the most comprehensive available.