TDECU - Your Credit Union Home / TDECU - Your Credit Union Share: CREDIT UNIONS TDECU - Your Credit Union Visit Website 10952 Westheimer Houston, TX 77042 (281) 269-8713 (800) 839-1154 (281) 269-8713 (fax) Visit Our Website Hours: Monday-Friday 8:30am-5:00pm Most accessible via electronics i.e. email or text About Map About TDECU is a not-for-profit financial cooperative where our members enjoy lower fees and higher deposit rates. Directions Greater Houston, Katy, Fort Bend, Woodlands, West Houston, Fulshear What's Nearby? Distance: 5 10 15 20 25 50 mi.