Central Heating and Boiler Repairs


Heating Engineers Cornwall

Sureflow are specialist engineers of central heating and hot water systems and are Worcester Bosch accredited.  Our engineers are registered with Gas Safe to carry out gas work safely and to professional standards.

We work to all makes and models of boilers for annual services, boiler repairs, parts replacement and new boiler installations.

Our engineers are used by leading estate agents to repair, maintain and replace heating systems in their portfolio of letting properties.  Our private clients and our landlords know that our team work hard to source all boiler parts quickly and efficiently to make sure that they have working heating and hot water as fast as possible.


Heating services

Sureflow central heating services include:

24hr Emergency call out

Boilers repairs and servicing

Boiler installations

Central heating repairs

Power Flush

Expert diagnosis

We use quality parts and components

Improve efficiency

We will be there when we say we will and on time

All work guaranteed


The service you expect

Sureflow can advise you on what you can do to improve the efficiency of your heating system, reduce your energy costs and identify potential issues early on, saving you time and money in the long run.

Sureflow only uses the best quality materials available at the lowest cost to you and all our work is guaranteed.

This along with our commitment to a reliable and friendly service gives our customers  peace of mind, at what can be a stressful time and ensures that our business is supported by recommendations and repeat business from our clients we have worked with.


Power Flush

Power Flush can cure heating system problem...

Is the system slow to warm up?

Are some radiators completely or partially cold?

Do radiators need frequent bleeding?

Is radiator water dirty and discoloured?

Radiators with pin hole perforations and leakage?

Are there 'Kettling noises' from the boiler?

Do you have repeated pump failures?

Any of these symptons could indicate that your system has circulation and flow problems resulting from internal corrosion and the subsequent formation of rust, sludge and scale deposits.

A Power Flush can restore circulation and efficiency to the heating system by removing these undesirable products.  It purges them from the system and replaces aggressive water with clean water, chemically treated to prevent future problems.

Why have your system power flushed?

Power Flushing is a highly effective cleansing operation which works by pumping water at a much higher velocity than usual through the heating system, to loosen and mobilise harmful corrosion deposits and to suspend them in the rapidly moving water.  The process is made more effective by specialist cleansing chemicals and an instantaneous flow reversal device, which creates turbulence in the radiators to optimise 'pick up' of the debris.

Cures flow and circulation problems

Restores system efficiency

Restores heat output to radiators

Cleans the whole system, including underfloor pipework

Removes aggressive water; treatment prevents further corrosion

Cures or prevents boiler noise

Power flushing and descaling is only one visit

Complete process carried out in less than five hours

More effective than traditional flushing methods

Minimises boiler warranty problems


Sureflow visited today to mend an electric heater. They were prompt, professional, pleasant and found and fixed the problem very quickly. They worked quietly, quickly and cleanly - thank you very much - marvellous work!

Betty Hale