Accreditations Don’t just take our word for it. We take great pride in delivering top-quality products and unbeatable service. The respect we earn from customers and experts alike has helped us become America’s largest exterior remodeler. But don’t just take our word for it — take theirs. BBB The Better Business Bureau is the leader in advancing marketplace trust, focusing on integrity and performance. Its work is giving consumers and businesses an unbiased source to guide them on matters of trust, providing educational information and expert advice. Our BBB accreditation is an honor, indicating we met its strict standards for conduct and product performance. BBB OSI Installer Protecting your work starts with following the proper sealant application best practices to make every install a state-of-the-art, professional job to prevent window or door problems. OSI Certified Installers get training for all the right tips and techniques from industry experts — online or offline — for the highest quality installation. We have everything you need from product information to building science insights. 88857502 OSI Installer LABA Building Industry Professionals working together since 1971 to educate our members and advocate for affordable housing and responsible government LABA La Crosse Chamber Through business leadership, La Crosse County will economically prosper and be a great place to work, live and play. La Crosse Chamber Good Housekeeping Seal-holding products, like Window World’s windows, vinyl siding, and Therma-Tru doors, are evaluated by the Good Housekeeping Institute (GHI) to verify that all product claims are true and that the products perform as promised. GHI also reviews Quality Assurance policies to ensure all products being manufactured are of the same quality as those evaluated in the Good Housekeeping labs. Good Housekeeping stands behind every product that has currently earned the Seal by offering consumers a two-year limited warranty on products and will repair, replace, or refund the cost of the product (up to $2,000) at their discretion; if it proves defective within two years of the purchase date. Certain limitations apply. Reference the GH Consumer Policy here. If any product that bears our limited warranty Seal proves to be defective within two years from the date it was first sold to a consumer by an authorized retailer, we, Good Housekeeping, will refund the purchase price or $2,000, whichever is less or, at Good Housekeeping's sole discretion, repair or replace the product. Good Housekeeping Energy Star The ENERGY STAR® program is a joint venture of the EPA and the U.S. Department of Energy. Its goal is to help consumers save money and protect the environment by identifying energy-efficient goods and practices. Products that earn the ENERGY STAR prevent greenhouse gas emissions by meeting strict guidelines set by the U.S. Environmental Protection Agency and the U.S. Department of Energy. Window World offers a variety of window and door packages that are ENERGY STAR qualified in each of the nation's four climate zones. Energy Star NFRC The National Fenestration Rating Council establishes test criteria that set the standard for performance ratings of window and door products. These consistent ratings provide accurate information on the energy performance of windows, doors and skylights. The presence of these ratings allows products across the industry to be compared on an unbiased basis. NFRC ASTM ASTM International, formerly the American Society for Testing and Materials, is the globally recognized leader in the development and delivery of voluntary consensus standards. Its mission is to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. Our windows have been tested and are confirmed to meet the air, water and structural integrity standards as defined by ASTM. ASTM Get your free quote today. Get a Free Quote Products Windows Entry Doors Patio Doors About Us About Us Accreditations Careers Contact Us Blog In the News Reviews Get Started Get A Free Quote Design Center Financing Options What to Expect Support Support Warranties Connect With Us La Crosse Window World of La Crosse 1001 2nd Ave SW Onalaska, WI 54650 (608) 519-3230 608-519-3234 Email Us Counties Served MN - Fillmore, Houston, Olmsted, Winona WI - La Crosse, Monroe, Vernon Contractor License WI: Contractor # 1251864 MN: License # CR754353 Hours of Operation: Sunday Closed Monday 9:00am - 12:00pm 1:00pm - 5:00pm Tuesday 9:00am - 12:00pm 1:00pm - 5:00pm Wednesday 9:00am - 12:00pm 1:00pm - 5:00pm Thursday 9:00am - 12:00pm 1:00pm - 5:00pm Friday 9:00am - 12:00pm 1:00pm - 5:00pm Saturday Closed © 2021 • Window World of La Crosse • All Rights Reserved. Disclosures & Privacy Policy Do not sell my info A message to our customers regarding COVID-19