The Plumbing Turnover Checklist: What Landlords Should Inspect Between Tenants

When one tenant moves out and another prepares to move in, landlords usually have a long list of things to handle. Walls may need touching up, appliances need checking, locks may need changing, and the property has to be cleaned. Plumbing deserves a place near the top of that list.

A small plumbing problem can remain unnoticed during a tenancy and become much more serious later. A slow leak underneath a sink, a toilet that runs occasionally, or a drain that takes longer than usual to empty may not seem urgent. Left unresolved, however, these problems can lead to water damage, higher utility bills, mould growth, damaged cabinetry, or an emergency repair after the new tenant has moved in.

The period between tenants provides an ideal opportunity to examine the plumbing system without disrupting anyone living in the property. Landlords can run fixtures, look inside cabinets, check utility areas, and arrange repairs before handing over the keys.

The following plumbing turnover checklist can help landlords identify common problems and prepare a rental property for its next occupants.

1. Check Every Faucet for Leaks

Start with something simple: turn on every faucet in the property. Run both hot and cold water and watch how the faucet performs. Water should flow consistently without unusual noises, sputtering, or noticeable pressure problems.

Once the water is turned off, watch the fixture for dripping. Even a slow drip deserves attention. Besides wasting water, persistent dripping can indicate worn cartridges, washers, seals, or other components. Landlords should also look around the base of each faucet. Water sometimes escapes around the fixture rather than from the spout. Check the countertop and the area where the faucet connects to the sink for moisture.

Don’t forget less frequently used fixtures. Laundry sinks, basement sinks, utility faucets, and exterior hose connections should be included when applicable. A turnover inspection is a convenient time to address these minor issues before they become maintenance requests from the next tenant.

2. Look Under Every Sink

The cabinet underneath a sink can reveal plumbing problems that aren’t obvious from above. Remove stored items left behind by the previous tenant and inspect the bottom of the cabinet. Look for water stains, swollen wood, peeling finishes, discolouration, dampness, or musty odours.

Then inspect the visible plumbing. Pay particular attention to supply connections, shut-off valves, drain assemblies, traps, and connections around garbage disposals where installed. Run the faucet while watching these components because some leaks only appear when water is flowing. Even if everything looks dry, gently touching around connections with a dry paper towel can make minor moisture easier to detect.

Evidence of an old leak shouldn’t automatically be ignored simply because the area is currently dry. Determine where the water came from and confirm that the original problem has actually been corrected.

3. Test Sink, Tub, and Shower Drains

Slow drains are among the easiest problems for tenants to tolerate without reporting. During turnover, fill each sink partially with water and then release it. The water should drain quickly without backing up, bubbling excessively, or producing unusual sounds. Do the same with bathtubs and showers.

Bathroom drains frequently collect hair, soap residue, and other material over time. Kitchen drains can accumulate grease and food debris. A drain that still works but empties noticeably slower than others may be developing a blockage. Addressing a partially restricted drain before the next tenant arrives can prevent a complete clog later.

Landlords should also avoid assuming that pouring chemical drain cleaner into every slow drain is routine preventative maintenance. The cause of a drainage problem isn’t always a simple surface clog, and repeated use of harsh products may not address the underlying issue. Recurring or multiple slow drains deserve further investigation.

4. Inspect Toilets Carefully

A toilet can appear to work normally while quietly wasting water. Start by flushing every toilet. Watch how quickly the bowl clears and how the tank refills. The toilet shouldn’t continue running long after the flush cycle has finished. Listen carefully after the tank fills. Intermittent filling sounds can indicate that water is escaping from the tank into the bowl.

Check around the toilet’s supply connection and shut-off valve for moisture. Then inspect the floor around the base. Movement is another warning sign. A toilet should feel secure when gently checked. Rocking may indicate a problem with how the toilet is secured and can sometimes contribute to seal issues.

Also look for cracks in the tank or bowl. Small cracks shouldn’t be dismissed because they can worsen over time. Getting these issues corrected during turnover is much easier than dealing with a leaking or unusable toilet after occupancy begins.

5. Test Plumbing Shut-Off Valves

Shut-off valves don’t receive much attention until something starts leaking. That makes tenant turnover a useful time to locate and visually inspect them.

Landlords should know where fixture shut-offs are located for toilets, sinks, washing machines, and other applicable fixtures. The property’s main water shut-off should also be clearly identified. Look for corrosion, mineral deposits, moisture, damaged handles, or valves that appear difficult to operate.

An accessible and functional shut-off can make a significant difference during an emergency. If a supply line fails, being able to stop the water quickly may prevent substantial damage. Landlords should also make sure the next tenant knows what to do if a major leak occurs, including how to contact the landlord or property manager immediately.

6. Examine the Water Heater

The water heater is another important part of a turnover inspection. Begin with a visual examination of the surrounding area. Look for moisture, corrosion, rust, staining, or signs that water has previously collected nearby.

Check visible plumbing connections for leaks. If the unit has a drain pan, inspect it for standing water or evidence of previous leakage. Landlords should also consider the unit’s age and maintenance history. An older water heater isn’t necessarily defective, but knowing its approximate age helps with future maintenance and replacement planning.

Ask whether the previous tenant reported inconsistent hot water, unusual sounds, discoloured water, or other performance issues. Problems with hot water are particularly disruptive once a new tenancy begins, so turnover is a sensible time to investigate anything unusual.

7. Check Water Pressure at Multiple Fixtures

Water pressure problems can affect the tenant’s experience and may sometimes indicate plumbing issues. Test faucets and showers throughout the property rather than checking just one fixture.

Very low pressure at a single faucet could be related to an aerator or fixture-specific issue. Low pressure throughout the property may have another cause that deserves investigation. Excessively high pressure can also be problematic because it places unnecessary stress on fixtures, valves, appliance connections, and supply lines.

Pay attention to significant differences between fixtures or floors. If something doesn’t seem right, measuring the pressure or having the system evaluated can provide more useful information than simply assuming the variation is normal.

8. Inspect Washing Machine Connections

If the rental includes laundry facilities, inspect the washing machine plumbing carefully. Look at the hot and cold supply hoses for cracks, bulges, corrosion around fittings, or other visible deterioration. Check the connections for signs of leaking.

Make sure the drain hose is positioned securely and hasn’t been damaged or improperly altered. The area behind a washing machine is easy to overlook because it’s usually hidden. Unfortunately, a failed supply hose can release a large amount of water.

If the machine can be moved safely without damaging flooring or connections, inspect the surrounding area for staining or evidence of previous moisture. Laundry plumbing deserves particular attention when the equipment or hoses have been in place for several years.

9. Look for Hidden Signs of Water Damage

Not every plumbing leak leaves a puddle directly underneath a pipe. Walk through the property and look for indirect signs of moisture. These may include staining on ceilings, bubbling paint, warped flooring, damaged baseboards, swollen cabinetry, peeling finishes, or persistent musty smells.

Pay special attention to rooms located underneath bathrooms, kitchens, and laundry areas. A ceiling stain below an upstairs bathroom, for example, may indicate that water has escaped from a fixture, drain, supply connection, or surrounding area at some point.

Don’t simply paint over staining during turnover without determining why it appeared. Cosmetic repairs can hide the evidence temporarily, but an unresolved leak may continue damaging the property behind the finished surfaces.

10. Check Exposed Pipes

Basements, utility rooms, mechanical spaces, and unfinished areas often provide access to plumbing that isn’t visible elsewhere. Inspect exposed pipes for corrosion, staining, moisture, damaged fittings, or unusual deposits around joints.

Pipe supports should also be examined. Plumbing that isn’t properly supported may move or vibrate when water flows. Landlords with older rental properties should pay particular attention to the condition and history of the plumbing system. Different pipe materials have different service lives and potential problems.

You don’t necessarily need to replace plumbing simply because it’s old. However, understanding what is installed in the building makes it easier to plan maintenance rather than waiting for an unexpected failure.

11. Investigate Unusual Plumbing Sounds

Plumbing can provide audible clues that something isn’t working as expected. While testing fixtures, listen for banging, whistling, gurgling, persistent dripping, or other unusual noises.

A gurgling drain, for example, may warrant attention when accompanied by slow drainage or problems affecting several fixtures. Banging pipes when fixtures are turned off may indicate another issue within the system. The important thing is to notice changes.

A quiet property between tenants provides a good environment for identifying noises that may be difficult to hear during normal household activity. Document where and when the sound occurs so that a professional can reproduce and diagnose it more easily if necessary.

12. Inspect the Sump Pump Where Applicable

Properties equipped with sump pumps should have them included in the turnover checklist. Inspect the sump pit and surrounding area. Make sure the pump appears properly positioned and that visible components aren’t damaged.

Testing should confirm that the pump activates and removes water as intended. The discharge arrangement should also be visually checked for obvious problems. If the property has a backup system, verify its condition according to the manufacturer’s recommendations.

Sump pumps are easy to forget during dry weather. Unfortunately, discovering a failed pump during heavy rain or rapid snowmelt can lead to a much larger problem. Keeping records of inspections, maintenance, and replacement dates can help landlords manage these systems proactively.

13. Pay Attention to Sewer and Drain Warning Signs

One slow drain may be a localized issue. Several drains behaving unusually can suggest a larger drainage problem. During turnover, test fixtures throughout the property and pay attention to how they interact. Does flushing a toilet cause another drain to gurgle? Does water back up somewhere when a washing machine drains? Are several fixtures draining slowly?

Also watch for persistent sewer-like odors. These symptoms shouldn’t automatically be treated as ordinary clogs. Problems farther along the drainage or sewer system may require professional diagnosis.

Rental properties can experience heavier or less predictable plumbing use than owner-occupied homes, especially when tenants change regularly. Identifying drainage problems during a vacant period can prevent an unpleasant emergency shortly after move-in.

14. Consider a Professional Plumbing Inspection

A landlord can perform many basic visual checks, but not every plumbing problem is visible. If the property is older, has experienced repeated leaks, has recurring drainage issues, or hasn’t been professionally evaluated for a long time, arranging a plumbing inspection during turnover can provide a clearer picture of the system’s condition.

A plumber may identify issues that aren’t apparent during a basic walkthrough, such as deteriorating components, problematic connections, drainage concerns, or fixtures nearing the end of their useful life. Professional assessment can be particularly worthwhile after a tenant reports recurring plumbing problems or when the landlord discovers unexplained moisture or water damage.

The goal isn’t necessarily to replace everything that shows wear. It’s to understand what requires immediate repair, what should be monitored, and what may need attention in the future. That information allows landlords to budget and schedule maintenance instead of responding only when something fails.

15. Document the Condition Before the New Tenant Arrives

Documentation is an important final step. Take dated photographs of plumbing fixtures and areas underneath sinks. Record any repairs completed during turnover and keep invoices or service reports where appropriate.

Make notes about the condition of toilets, faucets, water heaters, drains, appliances, and other plumbing components. Good records establish a baseline for the beginning of the tenancy.

If a problem appears later, landlords can compare the current condition with previous documentation. Maintenance records can also reveal patterns. For example, repeatedly clearing the same drain may indicate that the underlying cause needs a more permanent solution. Documentation also helps landlords manage multiple rental properties consistently instead of relying on memory.

Create a Repeatable Plumbing Turnover Process

The best turnover checklist is one that actually gets used. Rather than relying on a general walkthrough, landlords can create a standard plumbing checklist and complete the same steps after every tenancy.

That checklist might include every faucet, toilet, drain, shut-off valve, appliance connection, water heater, sump pump, and visible section of piping. Record whether each item passed inspection, needs monitoring, or requires repair.

A repeatable process becomes particularly valuable for landlords managing several units because small details are less likely to be forgotten. It can also help property managers spot recurring problems across a building. If similar fixtures continually fail, for example, replacing or upgrading them systematically may make more sense than repeatedly arranging individual repairs.

Give New Tenants Basic Plumbing Information

Preventative maintenance doesn’t end when the turnover is complete. New tenants should receive simple instructions about reporting plumbing problems promptly. Encourage them to report leaks, continuously running toilets, slow drains, unusual sounds, loss of water pressure, and signs of moisture rather than waiting for the problem to become severe.

They should also understand what shouldn’t go down toilets and drains. Landlords don’t need to provide tenants with a plumbing manual. A short set of practical guidelines can prevent misuse and make tenants more likely to report warning signs early.

Emergency contact information should also be easy to find. When tenants and landlords communicate quickly about plumbing problems, minor repairs are less likely to become expensive emergencies.

A Small Inspection Can Prevent a Much Bigger Problem

Tenant turnover is already a busy period, and plumbing may seem like just another item on a long maintenance list. However, it is one of the systems capable of causing significant property damage when problems are overlooked.

A dripping connection can damage a cabinet. A running toilet can waste substantial amounts of water. A partially blocked drain can become a backup. A deteriorated appliance hose can fail unexpectedly. A small hidden leak can continue behind a wall or ceiling long before anyone notices visible damage.

Checking these items while the property is vacant gives landlords time to investigate and repair problems properly. More importantly, a thorough turnover inspection establishes the condition of the plumbing system before the next tenancy begins. That creates a useful maintenance record, reduces surprises, and helps landlords distinguish between normal wear and newly developed problems.

Conclusion

The process doesn’t need to be complicated. Test fixtures, look for moisture, check drains, inspect visible connections, document what you find, and bring in a qualified professional when a problem goes beyond a straightforward visual check. A couple of hours spent examining the plumbing between tenants can prevent days of disruption later for landlords; that makes plumbing maintenance less about responding to emergencies and more about protecting the property for the long term.