Signs a walk-in tub may be the right choice
- Stepping over a standard tub wall feels unsteady or unsafe
- A family member needs help getting in or out of the tub
- You want to stay in your home as mobility changes
- A doctor or therapist has recommended a seated bathing option
- You want warm soaks for sore joints without climbing down into a tub
Bathrooms are where a lot of injuries happen. A CDC study of 2008 data estimated that 234,094 nonfatal bathroom injuries among people 15 and older were treated in U.S. emergency departments, and 81.1 percent were caused by falls. Rates were highest in or around the tub or shower, and they rose with age.
Walk-in tub plumbing requirements
A walk-in tub works differently from a standard bathtub, and the plumbing has to keep up:
- Fast fill. You get in before the tub fills, so slow filling means sitting in a cool tub. Larger supply lines and a high-flow valve help.
- Fast drain. You stay seated until the water is gone, so drain size and venting matter. Many tubs offer a fast-drain option that needs the right drain connection.
- Enough hot water. The tub's fill volume, from the maker's spec sheet, is compared with your water heater's capacity and recovery.
- Scald protection. The CPSC says most adults suffer third-degree burns from 140°F water in six seconds, so a temperature-limiting valve protects the person in the tub.
- Floor support. A full walk-in tub with a person in it is heavy. On raised floors, the framing should be checked before install.
Walk-in tubs and alternatives compared
| Option | Best for | Watch out for |
| Walk-in tub | Seated soaking with a low step-in threshold | You wait inside while it fills and drains, and it needs plenty of hot water |
| Standard tub with grab bars | People who can still step over a tub wall safely | The tub wall remains a trip and fall point |
| Low-threshold or curbless shower | Wheelchair users and seated or standing showers | No soaking, and curbless floors need careful drain slope |
| Tub-to-shower conversion | Small bathrooms that need easier entry | Drain and valve changes, and the bathtub is gone |
The CDC study's authors suggested non-slip strips and grab bars inside and outside the tub or shower as basic safety steps, and those are worth adding whichever option you pick. For other bathroom fixtures, see our plumbing fixture installation service.
What affects the cost of walk-in tub plumbing
- Drain changes. Matching an existing drain is simpler than relocating one, especially through a slab.
- Supply and valve upgrades. Larger supply lines and thermostatic valves add parts.
- Hot water capacity. If the current heater cannot fill the tub, water heater replacement may be part of the project.
- Access. Narrow doors, tight bathrooms and second-floor baths take more time.
- Tub features. Jets, heaters and fast-drain systems can add plumbing and electrical work.
We price the plumbing after we see the bathroom and the tub you have chosen. Financing is available.
Walk-in tubs in Oklahoma City: local factors
Many Oklahoma City homes sit on slab foundations, which means the tub drain is set in concrete. If a walk-in tub's drain lines up with the existing one, the job is straightforward. If not, the slab has to be opened to move it, so we check the drain position before you buy. Homes with crawlspaces make drain changes easier but deserve a look at the floor framing under a heavy tub.
Falls are a real risk for older adults everywhere, and the CDC reports that more than one out of four older people falls each year. Oklahoma City treats plumbing as a trade permit and requires plumbing contractors to be licensed by the state and registered with the city, so the work is done by someone accountable for it. If hot water reaches the tub slowly because the bathroom is far from the heater, a hot water recirculation pump can help. You can read more about what we do on our home page.