Pipes and fixtures
Toilet repair and replacement
Most toilet problems, like running, weak flushes and leaks, come from a worn flapper, fill valve or wax ring and are quick repairs. Cracked tanks or bowls and toilets that clog constantly are usually better replaced.
- Licensed plumbers in all 50 states
- Upfront pricing from the plumber before work
- Free referral, no obligation

A running toilet can waste hundreds of gallons a day, and it's usually a worn flapper or a fill valve set too high. A leak at the base means the wax ring seal has failed, often because the toilet rocks; left alone, it rots the subfloor. Water on the floor from the tank bolts or supply line is a simpler fix.
When a toilet clogs every week, look at the toilet itself and the line behind it. Older low-flow models from the 1990s were notorious for weak flushes. If the whole house drains slowly, the problem is probably in the main line and needs drain cleaning instead.
Toilet Repair and Replacement at a glance
- Service
- Toilet Repair and Replacement
- Category
- Pipes and fixtures
- Availability
- Scheduled and same-day visits, depending on local availability
- Service area
- All 50 states and Washington, DC
- Also called
- running toilet, toilet leak, toilet installation
- Common fix
- Flapper, fill valve or wax ring
- Cost
- Quoted on site by the pro before work starts; see cost factors below
Signs you need toilet repair and replacement
- The toilet runs or refills on its own
- Water around the base
- The toilet rocks or feels loose
- Frequent clogs or weak flushes
- Cracks in the tank or bowl
What the pro does, step by step
- 1
Diagnose
The plumber checks the flapper, fill valve, flush valve, wax ring, flange and supply line.
- 2
Repair
Worn internal parts are replaced; the toilet is reset on a new seal if the base leaks.
- 3
Or replace
If the fixture is cracked or inefficient, a new toilet is installed and the old one hauled away.
- 4
Test
Multiple flushes confirm the seal, fill level and flush performance.
What affects the cost of toilet repair and replacement
Prices vary by market and job. The pro gives you a price before starting; these factors drive it.
- Part repair versus full replacement
- Damaged flange or subfloor
- Toilet style (standard, comfort height, wall-hung)
- Number of toilets
- Hauling the old fixture
What you can safely do, and when to stop
Safe to do yourself
- Replace a flapper or adjust the fill valve
- Plunge with a flange plunger
- Tighten the supply line connection gently
- Test for silent leaks with food coloring in the tank
Stop and call a pro
- Water leaks from the base
- The floor around the toilet is soft
- Cracked porcelain
- Clogs in several fixtures
Toilet Repair and Replacement FAQ
Why does my toilet keep running?
Usually a worn flapper lets water leak into the bowl, or the fill valve is set too high and water spills into the overflow tube. Both are inexpensive parts.
Is a leak at the base of the toilet serious?
Yes. It usually means the wax ring has failed, and sewage-contaminated water can soak into the subfloor. Stop using that toilet and have it reset.
How long do toilets last?
The porcelain can last decades, but internal parts wear out every 5 to 10 years. Many owners replace older toilets to get better flushing and lower water use.
Can I install a new toilet myself?
Many homeowners can, but a plumber should handle damaged flanges, soft subfloors or supply-valve replacement.
Toilet Repair and Replacement near you
Available in all 50 states. Find local conditions for your area:
Or browse by state: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii and all states.
Related services

Drain Cleaning
Professional drain cleaning clears clogs with a drain cable (snake) or water jetting, then checks whether the clog is local to one fixture or in the main line.
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Faucet and Fixture Repair
Dripping faucets and shower valves are usually fixed by replacing a cartridge, washer or seat.
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Leak Detection
Leak detection locates hidden leaks in walls, floors, slabs and yard lines using meter tests, pressure testing, acoustic listening and thermal imaging, so the plumber opens only the spot that needs repair..
Learn moreGet toilet repair and replacement help now
Call (888) 555-0142 to reach an available local pro, or request service online.
