P H Greef Electrical Services are Specialist Service Engineers for Nightstor Electric Boilers, Compact Electric Boilers and SAB Electricaire Units.P H Greef Electrical Services carries a wide range of spares for Nightstor Electric Boilers, Compact Electric Boilers and SAB Electricaire Units on their Service Vehicle to enable most repairs to be carried out on the same day.P H Greef Electrical Services are factory trained Service Engineers and have over 20 years experience in the servicing and repairing of Nightstor Electric Boilers, Compact Electric Boilers and SAB Electricaire Units.