Mark A. Colby Landscape & Maintenance and Professional Sprinkler Design & Service are a locally family owned and operated business serving the Orange County area since 1986. We are Licensed (C-27 # 763124), Insured and bonded. We have an A+ rating with the Better Business Bureau and many referrals from satisfied customers. We specialize in Irrigation and sprinkler installation, repair, modification and addition. We will call you back right away and quickly solve your irrigation problems. Emergency repair and electrical troubleshooting as well as leak detection are just a portion of our services available. Servicing of controllers,control valves, main ball valves, Irrigation wiring, PVC piping, replacing heads, etc.