Toilet component replacements are commonly done by homeowners themselves. Check out this video on the steps to replacing a toilet fill valve in about 10 mins. with the proper parts. It may just give you the courage to try this at home. If you need assistance with this repair Fluidmaster has an online troubleshooting guide and live chat assistance waiting for you on weekdays from 5:30 am to 5:00 pm. at https://www.fluidmaster.com/support/.