Can I replace a toilet fill valve myself without professional help?

Yes, many homeowners can replace a toilet fill valve with basic tools. If the toilet keeps running, backs up, or leaks after replacement, schedule a pro visit. Parrish Services fixes toilet backups, uses video line inspections and hydro-jetting, and provides 24/7 emergency response. Our Priority Service plans include annual toilet checks to reduce clogs and sewer backups in Reston and across Northern Virginia.

• Shut off water and drain the tank.
• Swap the fill valve and gasket; hand-tighten the locknut.
• Reconnect supply, set water level, and test for leaks.

Updated: 2025-12-31 00:00:00

Need help in Reston, VA? Call (571)-650-1016 or book online.

"Danny was on time and fixed my toilet issue quickly." — John P.