Settlement day is exciting, but a building report doesn’t tell you everything happening behind the walls. Plumbing is one of the few systems in a house that runs constantly and only announces itself once something has gone wrong. A slow leak under a vanity, a hot water system nearing the end of its working life, or a drain slowly filling with tree roots can all sit unnoticed through an inspection and a move.
Working through a simple new home plumbing checklist in your first few weeks gives you a baseline. You’ll learn what’s normal for your house, which makes it much easier to notice when something changes.
What should a new homeowner check first?
Start with visible leaks, they’re quick to find, cheap to fix early, and the most likely to cause damage if ignored. Then work through your fixtures, hot water system, drains, water pressure and outdoor plumbing.
1. Look for visible leaks
Take a torch and check:
- under kitchen and bathroom sinks, including the flexible hoses
- around the base of every toilet
- behind and beneath the washing machine
- inside vanities and cupboards backing onto wet areas
- exposed pipework in the garage, laundry or subfloor
- outdoor taps and their wall connections
- ceilings and walls directly below upstairs wet areas
You’re looking for dampness, water staining, mould spotting, swollen or warped cabinetry, lifting floor coverings and a musty smell. Run your hand along pipe joins and hose fittings, moisture you can feel but not see still counts.
Don’t assume a small drip is harmless. Slow leaks inside enclosed cabinetry cause damage out of all proportion to the amount of water involved, because the timber and plasterboard around them stay wet.
2. Test every tap, toilet and shower
Go room by room and actually use everything, including the spare bathroom nobody will use for months. Turn each tap on fully, hot and cold. Check that tapware moves smoothly, doesn’t drip once closed, and doesn’t shudder or knock when shut off quickly.
Run each shower and watch the flow, a weak or uneven spray often points to a blocked outlet rather than a system-wide problem. Flush every toilet twice, listening for water that keeps running afterwards. Note how long hot water takes to arrive at each fixture, and whether any drain empties more slowly than the others.
Write down anything odd. Patterns across several fixtures mean something different from one isolated fault.
3. Check the hot water system
First, work out what you’ve actually got: storage or continuous flow, and whether it’s electric, gas or solar. Find the manufacturer’s label and note the age and capacity, then locate the isolation valve and the main controls so you know where they are before you need them.
Look for corrosion or rust staining around the base and fittings, pooling water beneath the unit, and any steady dripping from the relief valve. Listen for rumbling or banging during heating. Inconsistent temperatures, or running out of hot water sooner than the household size suggests you should, are worth raising with a licensed plumber.
Don’t open, dismantle or adjust gas or electrical components yourself, those are strictly licensed work.
4. Check for slow or blocked drains
Fill each sink and basin, then release the water and watch it go. Healthy drainage is quick and quiet. Gurgling, bubbling or a delay before the water moves suggests a partial obstruction or a venting issue.
Check kitchen sinks, bathroom basins, shower wastes, the laundry tub and any floor wastes. Slow drainage is rarely just an inconvenience, it usually means a blockage is building. In older suburbs, recurring slow drains across multiple fixtures can indicate tree root intrusion in the sewer line, which needs professional assessment rather than a supermarket drain cleaner.
5. Check water pressure
Pressure that’s too low is frustrating; pressure that’s too high quietly damages fittings, hoses and appliances. Turn on a tap and note whether the flow seems weak or unusually forceful. Run two fixtures at once and see how much the flow drops.
Banging pipes, taps that spit air, or seals and washers failing repeatedly can all relate to pressure. Pressure-limiting valves and mains pressure adjustments are plumber’s work, observe and report rather than adjust.
6. Inspect outdoor plumbing
Outdoor plumbing is the most commonly skipped part of any checklist. Test every garden tap for drips and firm operation, check external pipework for corrosion or damage, and inspect irrigation and pool connections where they exist.
Then walk the yard. Unexplained wet ground, unusually green patches, or soggy soil during dry weather can indicate an underground leak or a drainage fault. While you’re outside, clear the gutters and check that downpipes discharge properly into the stormwater system rather than beside the footings.
Should I get a plumbing inspection after buying a house?
It’s worth it when the plumbing’s age is unclear, the home is older, there’s evidence of past water damage, pressure is inconsistent, or several fixtures show problems at once. A plumbing inspection Greenfield homeowners arrange soon after moving in typically covers accessible pipework, fixtures, drainage performance, the hot water system and signs of concealed leaks, giving you a clear picture of condition and priorities rather than a guess.
When should you call a plumber?
Call a licensed professional for persistent or recurring leaks, sewer and drainage faults, no hot water, significant pressure problems, suspected concealed leaks, repeated blockages, and any active water damage. Plumbing Services are also the right call for anything involving gas appliances, hot water units or work behind walls, these are regulated for good reason. Having a Plumber Greenfield residents can call before an emergency arises is simply sensible preparation.
The practical takeaway
Spend an afternoon with a torch and a notebook, then act on what you find. Early checks turn expensive emergencies into routine maintenance, and give you a record of your home’s plumbing condition from day one.