Why is my boiler leaking water?

If you've spotted water dripping from your boiler, don't panic – but do act quickly. A leaking boiler can lead to serious issues if left unchecked, from damage to your home to complete system breakdown. Let's explore why your boiler might be leaking and what you can do about it.

Why do boilers leak water?

leaking boiler

Pressure Issues

One of the most common culprits behind a leaking boiler is incorrect pressure. Your boiler should typically maintain a pressure between 1 and 1.5 bar. If the pressure rises too high, the pressure release valve (PRV) will activate, causing water to leak. This could happen if someone's overzealously topped up the system or if there's a fault with the PRV itself.

Corroded Components

Nothing lasts forever, and your boiler's internal parts are no exception. Over time, components like pipes, seals, and pump valves can corrode or wear out. This is particularly common in older boilers or those that haven't received regular maintenance. The most vulnerable parts include:

  • Heat exchanger: A crucial but expensive component that can develop cracks
  • Seals and gaskets: These rubber components naturally deteriorate over time
  • Pipe connections: Joints can weaken and develop small leaks

Installation Issues

Poor installation can come back to haunt you months or even years later. Poorly fitted pipes, incorrect soldering, or improperly tightened connections can all lead to leaks. This is why it's crucial to use a Gas Safe registered engineer for any boiler work.

Scale Build-up

If you live in a hard water area, limescale can be a real nuisance. Scale build-up inside your boiler can cause blockages and put extra strain on components, potentially leading to leaks. Regular servicing can help identify and address scale before it becomes a major problem.

What Should You Do?

  1. Don't ignore it! Even a small leak can indicate a serious problem.
  2. Check the pressure gauge. If it's above 2 bar, this could be your issue.
  3. Look for obvious signs of corrosion around pipe joints or connections.
  4. Call a Gas Safe registered engineer. They can properly diagnose and fix the problem.

Why Choose He@Heating Limited?

  • Gas Safe registered engineers
  • Which? Trusted Trader status
  • Comprehensive local service across Essex
  • Years of experience in boiler repair and maintenance
  • Professional, reliable, and prompt service

Don't let a leaking boiler cause stress or damage to your home. Contact He@Heating Limited on 07956575049 for expert assistance throughout Dunmow, Bishops Stortford, Chelmsford, and surrounding areas.