Boiler Repairs and Breakdowns
Boiler broken down, no heating, no hot water or a fault code on the display? BoilerWell repairs gas boilers across Rhondda Cynon Taf and Cardiff. Call and describe what's happening: you don't need to know what the fault is.
Or send a message and a photo of the display on WhatsApp.
- Gas Safe registered
- Based in Pontypridd, South Wales
- You deal with BoilerWell directly
Why call BoilerWell about a boiler fault
- Gas Safe registered for boilers. The registration covers central heating boilers and water heaters.
- You don’t need to know the cause. Describe what the boiler is doing and BoilerWell takes it from there.
- Explained before it’s fixed. You hear what’s wrong and what the repair involves, and nothing goes ahead without your agreement.
- An honest repair-or-replace answer. Most faults are worth repairing, and you’ll be told when one isn’t.
No heating
What it can mean. Often a control or setting, low system pressure, a frozen condensate pipe in cold weather, or a fault with a part such as the pump or a valve.
What you can safely check
- That the boiler has power, and the switch or fuse spur next to it is on
- Your thermostat and timer: is the heating set to come on, and set high enough?
- The pressure gauge on the boiler (see below)
If the controls are right and it still won’t heat, call.
No hot water
What it can mean. On a combi, often a fault with the part that switches the boiler between heating and hot water, low pressure, or a problem with the water supply coming in.
What you can safely check
- Whether you have cold water at the taps
- Whether the heating still works: radiators warm but no hot water points to a different fault from neither working
- The display for a fault code
Note what works and what doesn’t, and call.
Leaking or dripping
What it can mean. A worn seal, a failing valve or a pressure relief valve letting water out. Water near a boiler’s electrics needs attention straight away.
What you can safely check
- Switch the boiler off at its controls and put a container under the drip
- Don’t take the case off or tighten anything inside
Call: a leak is not something to leave.
Pressure keeps dropping
What it can mean. A leak somewhere in the heating system, a faulty pressure relief valve or an expansion vessel that needs attention.
What you can safely check
- The gauge: most boilers sit around 1 to 1.5 bar when cold, but check your boiler’s user guide
- If the user guide shows how to top up the pressure, you can follow it once
If it drops again, there’s a fault to find: call.
A fault code on the display
What it can mean. Codes differ between makes and models, so the same number can mean different things on two boilers.
What you can safely check
- Write down the code and your boiler’s make and model
- Your user guide may allow one reset. If the code comes back, stop resetting it
Call with the code: it helps narrow things down before the visit.
Banging, gurgling or whistling
What it can mean. Air or sludge in the system, low pressure, or, in freezing weather, a blocked condensate pipe. Some noises point to a part wearing out.
What you can safely check
- In freezing weather, whether the condensate pipe outside is frozen (see below)
- The pressure gauge
If the noise carries on, call.
In freezing weather: the condensate pipe
The thin plastic pipe that runs from the boiler to a drain outside can freeze, and the boiler then stops with a fault code, sometimes with a gurgling sound. If the pipe is outside and safe to reach at ground level, pouring warm water (never boiling) along it can thaw it, and your user guide explains how to restart the boiler. If you’re not sure, or it happens again, call.
24/7 emergency call-outs
If your heating has failed, your boiler has broken down or a pipe has burst, call BoilerWell at any time, including nights, weekends and bank holidays. Say what's happening and you'll get a straight answer on what can be done and when. You won't be promised an arrival time that can't be kept.
If your boiler is found to be unsafe
Gas Safe registered engineers follow the gas industry’s unsafe situations procedure. If an appliance is a danger, the engineer will, with your permission, turn it off or disconnect it, label it and give you a written notice explaining why. It must not be used again until it has been repaired, and it is illegal to use a gas appliance you suspect is unsafe.
Repair it, or replace it?
Most faults are worth repairing. If your boiler keeps breaking down, parts are no longer made, or it has been classed as unsafe, a new boiler may make more sense, and you’ll get a straight answer either way. See new boiler installation.
Boiler repairs in Pontypridd, Rhondda Cynon Taf and Cardiff
BoilerWell is based in Pontypridd and repairs gas boilers across Rhondda Cynon Taf and Cardiff. Enquiries from Caerphilly county borough, Merthyr Tydfil and further afield are welcome: availability is confirmed after BoilerWell reviews the job. You deal with BoilerWell directly, not a call centre.
Boiler repair questions
Is it safe to keep using my boiler if it's leaking?
No. Switch it off at the controls, catch the water and call. Water near a boiler's electrics or a leak from inside the case needs looking at before the boiler is used again.
Can I reset my boiler myself?
Most boilers have a reset button, and the user guide explains when to use it. One reset is reasonable. If the boiler locks out again, keep the fault code and call: repeated resets can hide a fault rather than fix it.
Why does my boiler keep losing pressure?
Usually because water is escaping somewhere: a leak on a radiator or pipe, a pressure relief valve letting water out, or a problem with the expansion vessel. Topping it up only treats the symptom, so the cause needs finding.
What does the fault code on my boiler mean?
It depends on the make and model, because manufacturers use different codes. Your user guide may list them. Either way, tell BoilerWell the code when you call: it helps work out what to bring.
Is my old boiler worth repairing?
Often, yes. A single fault on a sound boiler is usually worth fixing. If it keeps breaking down, parts are no longer made or it has been classed as unsafe, you'll get an honest view on whether a new boiler makes more sense.
Can I repair a gas boiler myself?
No. By law, any work on a gas boiler must be done by a Gas Safe registered engineer. You can check things outside the boiler, such as the controls, the pressure gauge and the condensate pipe, but never open the case.