Frequently Asked Plumbing Questions

Why is my tap leaking?

Most of the time it's the tap washer's worn out. However, sometimes it has more to do with to do with the tap wear. It could be near the end of its life. this is especially possible if you are living in an older old house. Generally speaking, a leaking tap can be fixed by replacing a tap washer. This is one of the more simpler jobs we get called out for. Generally, it is a pretty straightforward job. Two reasons to call a plumber.

Old Taps

Some taps are very old and quite fused together, so you need some specialised tools to get them apart.

Avoid Damage

It's really hard to undo a tap without damaging the tap.
If you decide to have a go remember you've got to turn off the water before replacing the tap washer or pulling apart your tap. It is also wise to have a backup plan if you break the whole thing.

Is it a problem to have old terracotta pipes?

Many older style houses in Melbourne have terracotta pipes.  They can crack a bit, and tree roots can grow in there and cause blockages.

They're quite problematic around the Brunswick area because the clay is highly reactive so it moves a lot with the changing moisture with the seasons. They say you can get up to 40 millimetres movement in some areas.  Terracotta doesn't like moving, it cracks. That's when tree roots get in and cause blockages.

What are the most common plumbing repairs that you get involved in?


I guess it's a little bit seasonal-based. During winter months we are generally testing heaters. In the winter everyone turns on their heaters and realise they have a problem. If the equipment is just sitting there you might accumulate a bit of calcium on the sensors.

It's like a car. If you sit it there for six months and don't start it, then you try and start it, it might not start properly. That's the same kind of thing that happens with heaters.


The winter rain triggers a lot of maintenance calls about roof leaks. All the leaves fall, block the gutters, and then there is a big downpour that causes flooding inside your building.


There are always problems with toilets, whether it be a blocked toilet or they're leaking when they flush. Sometimes after they're flushed they keep running into the bowl because the mechanism in the system may be getting jammed.

What causes a pipe to burst?

Defective Part

It can be that the pipe was slightly defective when it was installed. Eventually, that defect or that weakness in the pipe can cause it to split.


Sometimes it's a chemical reaction. The pipe might be touching something that creates a bit of corrosion and then it can leak.

Enthusiastic Gardeners

Sometimes it's people digging in their garden and they hit a pipe.

Temperature Stress Fractures

All pipes expand and contract slightly. Hot pipes especially, expand and contract as cold water or hot water goes through it and that movement over time can cause stress fractures and cause the pipe to leak.

How do you unclog a sink?


Sometimes it can be as simple as giving it a plunge.

Remove Trap

Sometimes removing the trap or the U-shaped piece underneath the sink and cleaning that out.


Other times it requires a cable to be sent down the drain to unblock it. That’s where a plumber comes in handy.

How do you know if you've got a water leak?

Lawn Wet Patch Followed By A Big Bill

Sometimes people might notice a bit of a wet patch in their lawn that's a bit unusual or maybe a greener patch than the rest of the grass. Then it turns out they get a high water bill. That's a pretty good sign that there's a pipe leaking in the ground in the front yard.

Leaking Taps

If you've got a dripping tap, that's is a water leak. Sometimes water running into the bowl a toilet is considered a leak. It will certainly increase your water usage.

Roof Leaks

If you have a roof leak you will sometimes notice;
- unusual stains on the ceiling
- a bit of mould forming maybe in the corner
- a patch on the wall or roof where the paint has started to bubble a bit.

What can you do about rising damp?

Start With The Roof

If you have a rising damp problem you start by assessing the roof and seeing whether there's any immediate issues with water getting into the brickwork.

Pipe Assessment

Assess the in-ground pipes. You might get your plumber to do a pressure test on the water line or send a camera down the drains.

Site Assessment

Sometimes it can be something like a concrete driveway causing the rising damp. Perhaps when it was first installed it sloped away from a building. Over time there might be movement of the ground. That driveway might start to slope a little bit towards the building, so you get all that water that lands on the driveway and goes towards your building.

If you've got rising damp, getting a plumber in means that you can actually go through a whole lot of checklists of things to try to identify the area of concern.

What to do when you smell gas?

Open Windows

The first step would be to open some windows and then check.

Check The Stove

Next check to see if someone has left the cooktop maybe just a little bit on.

Find The Gas Meter

Find the gas meter and turn it off. Gas meters are normally found on the front left or right-hand corner of the house.

Call A Professional

You should also get in touch with your local gas plumber or gas fitter to sort out any other issues that might be occurring.

Why don't we have hot water?

We sometimes get called out because people have no hot water. There can be a couple of reasons for that.

Check Recent Use

It may be that someone has just had a very long shower and you have exceeded the capacity of your hot water system.

Pilot Light

Sometimes a gust of wind will cause the pilot light's to go out. Usually, the lighting instructions are found on the hot water unit that will tell you how to light it.

Thermocouple Sensor

The next common is the thermocouple sensor may have worn out. This can be easily replaced by a plumber.

Jammed Washer

Sometimes you can lose hot because a washer is jammed.

Split Cylinder

Another reason can be that the hot water cylinder has split. It may be leaking water onto the burner and it's extinguished the burner. This stops the water heating.

Thermostatic Mixing Valve

Sometimes loss of hot water can be caused by a valve called the thermostatic mixing valve. They sometimes don't mix the water properly and you only get cold water.

Why should I change to a solar hot water system?

People are increasingly changing over to a solar hot water system because of cheaper long-term running costs and environmental reasons. Australia is famous for its sunlight, so why not use it? Solar hot water systems are very reliable.

They are just as reliable as a normal hot water unit because the sun will heat the hot water throughout the day. If you happen to get a few cloudy days in a row the solar hot water unit has a backup. Generally, it's either a gas booster or an electric booster. Probably the better option is a gas booster, and that will heat the water just as any other normal hot water unit would do.

How do you fix leaky valves?

Leaky valves may be more common under the kitchen sink or under the bathroom basin. The inside of a toilet is essentially a valve, so sometimes when they're leaking you get water running into the bowl of the toilet. Quite often garden taps are quite hard to turn off. They can leak without having to really turn them off hard.

In most of those cases, you do need a plumber, because they've got the equipment to do it. They can spot any other problems occurring once they get in there.

What are the consequences of putting off plumbing repairs?

Damage to Foundations or Walls

The biggest thing that you wouldn't want to put off is maybe to do with your stormwater management. This means anything from your roof to your gutters, your downpipes, and the pipes that are in the ground. If your gutters are leaking or your stormwater pipes are leaking in the ground it can cause excessive moisture in the ground and cause the ground to move. That's why you might get a crack forming in your wall, generally on the corners of the house.

Someone who has a bad storm water system and leaves it ultimately is creating potential problems with foundations and expensive repairs to their house because of cracks in the side of a building.

Gas Leaks Are A Potential Hazard

You'd never even really consider putting off a repair on a gas line if you smelled gas. That should be an immediate concern if ever you should smell gas. A small leak over a long period can be quite dangerous, given the right circumstances.

Major Water Bills

A dripping tap is literally money down the drain.

Gas Heater Maintenance

Your gas heater needs to be serviced regularly. It may not run as efficiently if it becomes clogged a bit with dust and debris. The heat output can drop, and yet still cost as much to run.

How do you fix low water pressure?

Old Steel Pipes

Low water pressure can be caused because the house has old steel pipes in the system. These steel pipes become corroded on the inside and this can restrict the flow. You might also notice that the water from the taps is not very pleasant to drink.

Valve Blockage

Sometimes valves can become partially blocked with a lime build up over time. This can cause low pressure.

Shower Head Blockage

Sometimes debris coming through the line and going to your shower head can cause low water pressure.

Water Meter

Sometimes kids playing around with the water can adjust the water meter because it is just another tap at the front of your house.

Why is my hot water running out so fast?

Size of Hot Water Unit

Your hot water might run out quickly because of the size of your hot water unit. Some apartments only have a 50-litre hot water unit, which is barely enough for one shower.

Hot Water Unit Leak

Sometimes the PTR valve can be excessively leaking. This valve is normally on the top right-hand side of your hot water unit. It is meant to dribble slightly when the hot water tank is being heated but should stop after the tank is hot. It should never constantly run. If so, this valve will need to be replaced.

How to deal with a major water leakage at your home?

Turn off The Water Meter

The first step is to find your water meter and turn it off. Generally, they're at the front of the property. They can be anywhere along the front of the property, but normally within about a meter of the footpath or a meter of the front of your property. Quite often they're near the front garden tap.

What If I Can't Find The Water Meter

If you can't turn off your water meter, go outside and turn on all of your garden taps. This reduces the amount of water that might be running inside your house.

Call Your Plumber

A large leak will need a plumber.

What is the advice you give to people who are thinking about plumbing a new home?


The new homeowner might need to look at first where their council assets are, whether there are any easements in the property. This is important because there are restrictions for building over easements or close to easements.

Sewer Connection

You also need to establish where your sewer connection point is, whether it's at the front of the property or the back of the property, or whether you've got a shared drain with next door. Sometimes given the lay of the land you've got to make sure that you can get your sewer point to the council point and make sure that it's going to flow the right way, given the way you're going to build.


There are restrictions on building over combined drains. If your drain's shared with next door you might not be able to build over it because their sewer may actually come into your property and then go to the council drain.

If you are an owner builder they will get that information off the water authority of the council. If they're getting a builder, obviously he's going to be sorting that out.

Storm Water

It is important to know what's happening with the stormwater, whether your stormwater goes to a council drain underground in your backyard or whether it goes to the front gutter or there is no connection point. Your connection point might need to be brought in by the council.

Power and Communications

It's important to know the basics of what services are there, what your house is going to be connected to. You need to establish where your power's coming in, where your communications are coming in, and these are the other things as well.

House Angle

If you're going to have solar hot water the angle of the roof important.
It should be placed on a north facing roof to get the full effect of the sun.

Style of Fittings

You need to consider then what kind of style and what kind of feel they want for the house. This will influence what kind of toilets and tap ware and used in your interior plan.

Heating and Cooling

Consider how you're going to heat and cool your house. You want to know whether you're going to go with a gas ducted heater or whether you're going to look to have hydronic heating or something like that. They all need to be decided early on.

How long does a bathroom or kitchen renovation take to complete on average?

From start to finish these sorts of projects are generally completed over a month.

Are you involved in commercial plumbing in Melbourne?

We are very involved in commercial building projects. What's usually involved is there will be a tender from builders. Usually, their people we work with because we really respect their work. We'll put in a price in the tender we're involved. That's the process. The builder will liaise with the project management over all the details of the plumbing and we will often sit in on those meetings to consult and give advice.

The success of building projects is all about being organised. It's all about there's a certain timeline. You need to do some things before others. The right timing of those stages is critical for the smooth running of a project. This means giving people notice when timelines change. Some domestic and commercial builders are outstanding at co-ordinating trade teams and we prefer to partner with them as it helps us to deliver a quality plumbing service.

Recent Commercial Plumbing Projects

Commercial Food & Beverage Venues.

We've done some new restaurants, cafes, and we've renovated some pubs.


We've done some work at some schools. This included the plumbing on a new building that included a playground, the art room, a staff room and a toilet block. We've also done some work at Science Works.

All Our Work Is Fully Insured & Compliant With Australian Standards

"Expert Plumbing were a joy to deal with ... able to attend on the same day I called, advised me when they were about to arrive and fixed our problem very efficiently. I'd recommend unreservedly. Restored my faith in plumbers. Can't thank them enough."

Kim, West Melbourne