Do landlords have to fix hard water?

Usually no. Landlords have to keep rental homes safe and livable, and that includes water that is safe to use. Hard water passes that test. The minerals that make water hard are calcium and magnesium, and neither one harms you. So hard water almost never counts as something a landlord must repair.

There's a second reason, and it matters more than the law does. Hardness isn't something your landlord controls. It comes from the city supply. In San Antonio, the utility's own published figure is 299 parts per million, which counts as very hard. Every building on that supply gets that water, no matter who owns it.

When hard water is the landlord's problem

A few situations are different. If the building came with a water softener and it broke, fixing it is usually the landlord's job. Equipment the landlord provides is equipment the landlord maintains. If scale has damaged the plumbing badly enough that pressure drops or fixtures fail, that's a repair issue. And if the water looks wrong or smells wrong, that may not be hard water at all. That's the kind of problem the rules about livable housing cover.

If it comes to a dispute, your city's code enforcement office and local legal aid can tell you what applies where you live. Rules differ by state and city, and this page can't answer for yours.

What you can do without the landlord

Start by learning your actual number. Enter your zip code in our lookup tool and you'll see the hardness where you live, with the source. Renters in the hardest cities often assume something is wrong with their building. The number shows it's the whole city.

The fixes open to renters are the ones that don't touch the building's plumbing. Some equipment attaches right at the shower. It installs on the fixture and comes with you when you move. Ask your landlord before changing anything a lease might cover, and keep the original parts so you can put them back when you leave.

For the scale already on your fixtures, plain white vinegar dissolves it. Soak the showerhead, wipe the faucets, and it comes off.

If you just moved in

Water that feels different in a new apartment usually means the supply changed, and nothing more. Move from a soft-water city to a hard one and your skin and hair notice in the first week. Look up your new zip code before assuming the building has a problem. Our ranking of the hardest water cities shows how wide the gap between cities runs.

FAQ

Can you put a water softener in a rental?

A whole-house softener needs plumbing work and the landlord's permission, so for most renters the answer is no. Shower-level softeners and portable units exist that attach to fixtures without changing the plumbing. Check your lease before installing anything.

Is it okay to shower in hard water?

Yes. Hard water is safe for bathing. What it affects is comfort. Soap rinses poorly and skin can feel dry after showering. People with sensitive skin tend to notice it most.

What are the signs of hard water in my home?

White crust on the showerhead and faucets, spots on glasses out of the dishwasher, soap that won't lather well, and a film on shower doors. The fastest confirmation is your city's published figure, which our lookup tool shows by zip code.