Corona Energy
Edward Hyde Building
38 Clarendon Road
Watford, WD17 1JW


T 0800 804 8589
F 0870 242 9665

0800 804 8619

Customer Service
0800 804 8589

Credit Management
01923 476 915

Public and third sector customer service (including CCS)
0800 804 8599

Change of ownership
01923 476 903

Customer QueryContact Us


Need to contact or find us? Here’s how

We’re proud of our exceptional customer service. You can contact us quickly and easily with any query by calling us on 0800 804 8589 or by email. If you’re an existing customer you can also send us queries via myCorona.In the unlikely event that you have a complaint about your service, please give our customer service experts a call on 0800 804 8589, anytime between 8.30am and 5pm, Monday to Friday. We’ll do everything we can to resolve your query quickly, and to your satisfaction.

Contacting the Energy Ombudsman

If you’re not completely satisfied, please let us know. If your complaint is not resolved to your satisfaction within eight weeks, and you are a small or medium-sized organisation, you may be entitled to refer your issue to the Energy Ombudsman.

For details, visit, or phone 0330 440 1624 or 01925 530 263.


To help you find your way, we’ve provided helpful directions by plane, car and train.

Heathrow Airport

1. Leave Heathrow Airport and join the M4 westbound at junction 4

2. At junction 4B, leave the M4 and join the M25 northbound (clockwise) travelling toward the M1/M40

3. Follow the directions below for the M25

Directions from the M25|Directions from the M1
Directions from the M25 (clockwise)

1. If on the M25, exit the motorway at junction 19, sign-posted Watford

2. At the roundabout, take the 3rd exit (Hempstead Road)

3. Remain on this road until you reach a roundabout, take the 2nd exit (remain in the left hand lane)

4. You will immediately find yourself on another roundabout, again take the 2nd exit

5. Pass through a set of pedestrian lights, and straight over the next set of lights (again, remain in the left hand lane)

6. At the next set of lights turn left into Clarendon Road

7. Take the first turning on the right, Gartlet Road, The Edward Hyde Building is immediately on the left as you enter the road

8. The entrance to the building is in Gartlet Road, with the car park to the right of the main door. To enter the car park, press the intercom button on the barrier to alert Security

Directions from the M25 (anti-clockwise)

1. If on the M25, exit the motorway at junction 21a, sign-posted Watford / M1 South, then follow the directions from the M1

Car Parking

Visitors wishing to use the car parking facilities should contact Corona Energy prior to your departure

Directions from the station and tube station
Directions from Watford Junction station

1. Leave the station and walk up Clarendon Road on the left-hand side

2. Cross St Johns Road and continue up Clarendon Road

3. The Edward Hyde Building is on the next corner with its entrance in Gartlet Road

Directions from Watford Metropolitan Line station

Take a bus to Watford Junction station and then follow the instructions above