I got in touch with Wes with Native Texas Landscape. He said they definitely will do irrigation repair only. I got his name through my PB. They don't really work together, so no money connection, but my PB has seen a lot of Wes's work since Wes often does pool landscaping and post pool build hardscaping, etc. My PB said he always loved Wes's work and knew Wes was honest and good at what he does. I can vouch for all of that.
I forgot to ask Wes how soon he could do a job. But maybe if it's a quick irrigation repair, you wouldn't have to wait too long. He did say he would be happy to talk to you. The number on the website is to the office, so be sure to ask for Wes and tell him Suz from Cypress gave you his name. (I don't get any referral perks - I just think these are great people)
Take care,
Suz.