With Boiler servicing we will typically carry out the following,
Oil Boilers
Cleaning of burner assembly
Clean and check the cast iron heat exchange
Clean or replace internal / external fuel filters
Clean or replace the burner nozzle
Check combustion and emissions
Check safety devices
Check system pumps and water pressure
Check pressure valves and auto air vents
Check general operation
Gas Boilers
Cleaning of burner assembly housing
Clean and check the heat exchange
Check combustion and emissions
Check gas pressures
Check safety devices
Check system pumps and water pressure
Check general operation
In addition we can flush the water system to improve the heating efficiency this will help to clear blocked radiators valves and pumps.