Are you losing water pressure in your home, but can’t figure out why? Or perhaps you have a visible leak, but are unable to locate the source? Finding where you have a leak cannot be as obvious as you may think, some leaks can start in one place and yet appear in another.

First thing to look for in your home is wet, warped or discoloration stains on your ceilings, floor, wall or woodwork. Check inside cabinets under your sink in the kitchen or bathroom units under the basin and around the bath. Excessive condensation in your kitchen or bathroom may also be a sign of a leak so look and feel around surfaces carefully.

Remember that water that enters your home with pressure like your kitchen taps, bathroom basins and showers can be a little easier to identify bit other waters sources can be more difficult and take time before signs show (discoloration of paint, or wet patches).


Not all leaks are visible to the naked eye. Aside from water pouring from the ceiling, or pooling around the toilet, a lot of leaks can go undetected, causing damage to your home and a lot of expense in the long run. If you spot any of these symptoms in your home, it could be the sign of a leak:

  • A drop in water pressure even if usage is normal.
  • An unexplained increase in cost on your water bill.
  • Mildew or mould appearing in well-ventilated rooms.
  • Discoloured walls and flooring, which could be a sign of wet spots from leaky pipes.
  • Warped flooring or cracked tiles in the bathroom.
  • Warped and blistered paint or wallpaper.
  • A musty smell from old, accrued water.

If you suspect you have a leak or have tried but were unable to locate a leak, then it’s time to employ the services of a professional plumber.


First thing you should do if you have found a leak is turn off the water supply in your home. This is done by locating your homes shut-off valve or stop-cock. Internal stop cocks are usually located under your kitchen sink. You turn the water off by rotating the stop cock clockwise direction. If the stop valve is not under your kitchen sink look in the following locations.

  • Inside a hot press / airing cupboard located on the ground floor of your home.
  • Inside a utility room or garage.
  • Under the stairs.
  • Under a bathroom sink located on the ground floor of your home.
  • Inside a kitchen unit / cupboard / press.
  • Inside a boiler house.
  • At the same location as the gas pipe enters the home


If you ignore a leaking tap it will not get better in fact it will get much worst and, in the end, cost you money that could have been avoided. Again, the first thing to do is locate the isolation ball valve under the sink (see image above) turn the valve to a horizontal position. Then turn on the tap until the water stops flowing.

Many leaks are down to minor issues like a worn-out washer, so these are inexpensive to get fixed. If you want to try and replace the washer yourself there are many useful youtube videos to guide you. However, we would always advise having a professional in case you inadvertently cause more damage than you began with.


A leaking toilet can waste hundreds of gallons of water. You may notice the following common signs that something is not right with your toilet.

  • Toilet is flushing on its own.
  • Toilet is running constantly.
  • Toilet is making strange noises.
  • You see water puddles on the floor.

If you discover water leaking from the base of your toilet it may just be that the t-bolts which fasten the toilet to the floor need to be tightened or the seal needs renewing. The most common problem with leaking toilets is when the flapper valve fails to seat properly and form a tight seal against the valve seat. (a flapper valve is a type of valve used in flush toilets. It creates the watertight seal in the toilet tank that holds the water until flushing).

If you cannot find where the water is coming from, open the lid of the toilet and drop a little food colouring into the water and wait to see if you can identify where the water is coming from. Most leaking toilets are inexpensive to repair but left alone can cause more damage to your flooring and or ceilings (if an upstairs toilet).  We would advise you call in a professional plumber to avoid additional damage.


Choosing a reputable plumber for any kind of job in your home can be stressful for a lot of people. You need to be able to put your faith in a name you can trust. Our professional contractors are on hand and can get to you quickly and efficiently, for leak detection services and leak repair. If you give us a call, we will work quickly and efficiently to figure out exactly what you need. We will then give you an accurate, no obligation estimate. As well as this, ACR Plumbing and Heating offers:

  • Competitive rates
  • No hidden costs: Our reputation and the service you receive are important to us; we’ll never try and slip in extra charges
  • Over 30 years’ experience in the plumbing and heating industry
  • An excellent customer service history
  • We offer domestic, commercial, and residential leak detection services.


If you have a large leak, which is causing water to bulge in your ceiling, make a small hole so that the water can drain, which will prevent the ceiling from collapsing.

So for Dublin leak detection or any other plumbing services, give ACR Plumbing and Heating a call today on 01 497 9838.