Top Rated Lansing Replacement Windows & Exterior Doors Company
Serving The Greater Lansing, MI and Surrounding Areas
Triangle Exteriors has been proudly serving our customers for over 30 years in the Capital city areas. We give each customer our personal attention from start to finish when installing our products. We are a licensed, fully insured, accredited business and stand behind every job we do with a lifetime warranty on all materials, labor, and professional installation of all your windows and doors.