Top Plumbing Issues Every Landlord Should Watch Out For

Ask ten landlords who is responsible for plumbing issues, and you’ll get ten different answers. Some say it’s all on the tenants, “too much grease down the sink, too many wipes in the drain.” Others insist it’s just normal wear and tear that comes with the territory. The truth? It’s usually somewhere in the middle. 

Pipes age, systems fail, but misuse speeds things up. Instead of arguing over fault, the smart move is learning how to spot trouble early. The best way to stay ahead of plumbing issues is to know what they look like. Here are the top ones to watch for and how to deal with them before they do any damage.

Leaking Hot Water Heater

Look out for puddles around the base, rusty water from your taps, or that popping sound when it heats up. Those are early warnings that sediment’s building inside or the tank’s corroding. Once it starts leaking, the clock’s ticking! 

A burst tank can flood your laundry or hallway in minutes. So if you spot damp patches or moisture around your heater, call a licensed plumber right away. Catching a leaking hot water heater early means repair not replacement.

Dripping Taps That Never Stop

Believe it or not, a single dripping tap can waste more than 10,000 litres every year. That’s like pouring your water bill straight down the sink. Here’s what’s really going on behind that steady drip:

• Worn-out washers or O-rings
• Loose or corroded fittings
• High water pressure
• Mineral buildup
• Old plumbing

So next time you hear that faint plink… plink… plink, don’t ignore it. Fixing a tap takes minutes. Letting it run costs far more than you think.

Blocked Drains and Slow Flow

Hair, soap scum, kitchen grease, and the occasional “flushable” wipe (that really isn’t) all build up over time. If there’s one drain that gives up before the rest, it’s your kitchen sink. Day after day, it takes on grease, oil, coffee grounds, bits of food, and everything else that slips past the strainer. To keep your kitchen drain in good shape, inform your tenants to: 

• Skip the oil down the sink. Let cooking fats cool, then scrape them into the bin instead.
• Keep coffee grounds and food scraps out
• Run boiling water to melt away grease before it sets
• Catch small debris before it gets washed down

If you’re managing rentals, make drain care part of your routine. Remind tenants to avoid tipping oil or coffee grounds down the sink and install simple strainers. 

Low Water Pressure Complaints

When your tenant says, “the shower’s weak again.” Low water pressure can mean sediment buildup in pipes, a faulty pressure regulator, or even hidden leaks behind the walls. It’s also a common symptom of aging plumbing systems that just need a bit of TLC.

So before replacing fixtures, have a plumber test your pressure levels. The fix could be as simple as cleaning aerators or flushing lines. Get it sorted, and you’ll stop the drip of complaints before they start.

No Hot Water or Inconsistent Temperature

It’s every tenant’s worst morning. Stepping into a freezing shower because the hot water decided to take a day off.

Inconsistent water temperature points to issues with the thermostat, sediment buildup, or an older system struggling to keep up. Sometimes, it all ties back to a leaking hot water heater that’s losing both efficiency and energy. So if your property’s hot water comes and goes, don’t brush it off. Have it checked early.

Who Pays for Plumbing Repairs: You or the Tenant?

Plumbing issues happen in every rental property. Some are just part of a building’s normal wear and tear, while others come from how the space is used. Let’s break it down:

• If old iron or PVC pipes start leaking or burst because they’ve reached the end of their life, that’s the landlord’s job to fix. 
• Washers, seals, and fittings eventually fail. Normal upkeep and the landlord should cover it.
• If tenants pour grease down the sink, flush wipes, diapers, or toys down the toilet, or let food scraps build up in the disposal, they’re responsible for the plumber’s bill.
• If a tenant ignores a small leak until it floods the cabinet, they may share the cost because early reporting could have prevented damage.

Rental property maintenance responsibilities state the landlord must “provide and maintain the rental property in ‘reasonable’ repair.”

Stay Sharp, Stay Profitable

No late-night plumbing calls, no surprise water bills, and no frustrated tenants. That’s what happens when you stay proactive. Fixing small issues early keeps your property running smoothly and your tenants happy. Staying alert to early signs isn’t just good maintenance, it’s good business.