There are three places in Houston that actually fix trolling motors, as far as I know. G&S, Gulf Coast Trolling Motor, and Capt. Kirks. This time of year, G&S is open 9-5 Monday through Friday, closed on Saturdays. Capt. Kirks only works in-house on Motorguide. GCTM is open 6 days a week.
If you have a full time job, trying to get across Houston during the week can be a pain. GCTM is 112 miles round trip from my house but it was open last Sunday (17th)for extra Christmas shopping. I took it down there.
2001 Triton Tx-21/225 Mercury EFI