Emergency Heating & Gas

Emergency No Hot Water

If you have a total loss of hot water, this emergency call-out is designed to get you back up and running as quickly and safely as possible. We diagnose the cause, carry out safety checks on the hot water and heating system, and complete a repair or safe temporary restore where practical. You get clear explanations, options, and the next steps before any work continues.

More information

What the emergency no hot water service covers

This service focuses on fast diagnosis, safety, and restoring essential hot water.

  • Initial triage to understand the fault and any safety concerns
  • On-site fault finding on boilers, hot water cylinders and associated controls
  • Safety checks and isolation of gas, water or electrics where required
  • Repairs that can be completed immediately (subject to access and parts)
  • Safe temporary measures where appropriate to restore basic hot water
  • Clear explanation of the cause, your options, and what needs doing next

When this service is the right fit

Call for an emergency visit if you have no hot water at all, especially during cold weather or when the property must remain habitable. It is also appropriate if the boiler is showing fault codes, repeatedly locking out, losing pressure, or you suspect a leak affecting the hot water system. Landlords and small commercial premises often use this service to reduce downtime and protect occupant welfare.

How the emergency call-out works

You will be asked a few quick questions so the engineer arrives prepared, including what type of system you have (combi, system boiler, cylinder) and any symptoms you can see. On arrival, the priority is to make the system safe, then confirm the fault through testing and inspection. If a repair can be completed immediately, it will be carried out; if parts are needed, you will be given practical options for a temporary restore (where safe) and a clear plan for the follow-up repair.

After the visit: what happens next

If a full repair cannot be completed on the first visit, you will be advised on safe use of the system until the return appointment. You will also receive guidance on preventing repeat issues, such as pressure management, basic control settings, and when servicing is due. Where relevant, a follow-up repair can be arranged with the right parts and enough time to complete the job properly.

Frequently Asked Questions

How quickly can you attend for an emergency no hot water call-out?
Attendance depends on demand, time of day, and your location, but no hot water is treated as a priority. You will be given a realistic ETA and updates if anything changes. If it is unsafe to wait, you will be advised on immediate safety steps.
Is it safe to keep running the boiler if there is no hot water?
Not always. If you smell gas, see water leaks near electrics, or the boiler is making unusual noises, turn it off and call for advice. If it is simply a fault code or lockout, avoid repeated resets until it has been checked.
What usually causes a sudden loss of hot water?
Common causes include low boiler pressure, ignition faults, a failed diverter valve on combi boilers, or problems with thermostats and motorised valves on cylinder systems. Limescale and blocked filters can also contribute. A site visit is usually needed to confirm the exact cause.
Can you get hot water back temporarily if parts are required?
Often, yes, but only if it can be done safely. Depending on the system, a temporary restore may involve re-pressurising, resetting controls, or switching to an alternative heat source such as an immersion heater. If a component is unsafe or failed, the system may need to stay isolated until repaired.
What should a landlord or agent prepare before an emergency visit?
Please confirm access arrangements, the tenant’s contact details, and any known issues or recent works. If you have them, share the boiler make and model and any fault code shown. If there are vulnerable occupants, mention this during the booking so the visit can be prioritised appropriately.

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