Includes up to 45 minutes onsite diagnostic fault finding testing on services Gas, and making Safe or Potential minor repairs

No heat or hot water – potential causes include broken diaphragms and airlocks, failure of motorised valves, issues with the thermostat or low water levels. Leaking and dripping – a variety of issues could cause your boiler to leak water. It will depend on where the water is leaking from to determine the cause. Strange banging, whistling or gurgling noises – air in the system is a common cause, alternatively it could be that the water pressure is too low or it’s kettling. Pump failure, particularly in older systems, could also be responsible for strange banging noises. Pilot light goes out – could be a broken thermocouple which is removing the gas supply to the pilot light, a draught blowing the pilot light out or a deposit built up in the pilot light. Losing pressure – a water leak in the system is the most common reason for a loss of pressure. But it could also mean that the pressure relief valve needs replacing. Frozen condensate pipe – Thawing a frozen condensate pipe should ideally be done by a qualified engineer. Thermostat issues – if the thermostat is losing accuracy or turning the heating on/off when its not supposed to it might be time to invest in a newer, more energy efficient one. Kettling – hearing a strange rumbling noise? When lime scale builds up on your boiler’s heat exchange you get kettling. Radiators not getting hot – corroded pipework can cause sludge to gather in the system, preventing the free flow of hot water to the radiators. Chemically cleaning or flushing the system will remove these deposits. Boiler keeps switching itself off – could be low water pressure, a problem with the thermostat or a lack of water flow due to a closed valve, air or the pump not circulating the water in the system properly.

To install new control valve

Drain heating system if necessary Re-fill and bleed radiators

No parts included

What is a condensate pipe and do you need one
Condensate pipework refers to the plumbing system that carries acidic wastewater, or condensate, produced by condensing boilers to an external drain. This is essential for modern condensing boilers, which utilize the energy from condensed water vapor to improve efficiency, but also produce a byproduct that needs to be safely removed.

Overview
Replacing thermostat and existing wiring to boiler
To install a permanent live to a new or existing boiler system, you'll need to run a dedicated live wire from a switched fused spur to the boiler's permanent live terminal. This ensures the boiler has continuous power for functions like pump operation and internal checks, according to a forum post about boiler wiring.

To Install new pressure vessel remote for systems

Assumptions made

All radiators have both flow and return valves

All radiators and or valves are accessible

Radiator valves are in a serviceable condition and or not leaking or have previously been leaking

A full assessment will be made in some instances and or report with findings and recommendations made

To install new internal expansion vessel to pre exssting boiler

WHAT IS A POWER FLUSH?
An intensive clean to remove sludge, iron oxides, and limescale from your boiler, pipes, and radiators — restoring full circulation and improving system efficiency.

KEY BENEFITS
• Efficiency — System heats faster, potentially reducing fuel costs
• Heat Distribution — Eliminates cold spots on radiators
• Reliability — Less strain on boiler and pump, fewer breakdowns
• Lifespan — Protects metal components from corrosive sludge
• Quieter Operation — Can resolve kettling and gurgling noises

IMPORTANT LIMITATIONS (Please Read)
• Cleaning Extent — 100% deposit removal cannot be guaranteed, particularly in older or neglected systems. Some debris may remain.
• Component Condition — Flushing pressure can expose pre-existing weaknesses. We are not liable for failure of components unable to withstand the standard process.
• Seized Valves — Non-operational valves require section-by-section flushing, reducing effectiveness in those areas.

PRE-SERVICE CONDITIONS
The following must be in place before our engineer arrives:
• All radiator and service valves operational (not seized/broken)
• No pre-existing leaks, however minor
• Clear access to boiler, all radiators, and header tanks
• Feed & expansion tank structurally sound with lid fitted (gravity-fed systems)

If these conditions are not met, service effectiveness may be impacted and additional charges may apply.

MJ Electrical & Plumbing Services Ltd

To check control valves for /flow and return operations

To drain down / re-fill heating system
To Install Standard Central Heating Filter

No parts included
Typical parts might be used Filter, Chemicals