Vaillant Boilers

Blue gas flame close up
£85 + VATfor the first hour, then half-hours

WHO ARE VAILLANT ?

One of the leading boiler mannufactures on the market today is without a doubt Vaillant. They have been in the industry since 1874 and have gained a great reputation. Vaillant has played a major part in developing gas central heating.

Originating in Remschield Germany, today the Valliant group is present in more then 20 countries around the globe. Renowned for setting the standards in the heating market.

At Surrey Boiler Repairs our preferred boiler of choice is Vaillant, this is due to the quality of product and fantastic after care provided.

We pride ourselves on being Valliant accredited installers. We achieved this by training at Vaillants ‘centre of excellence’ in Farnborough. This ensure our engineers know the ins and outs of the products available on the market.

We can offer our customers 10 year guarantees as we are Vaillant accredited installers.

The training our engineers have received increases there knowledge in Boiler repairs. This makes them better equipped to get your boiler working as quickly as possible.

We offer same day boiler repairs with Vaillant boilers and carry parts on board in order to get your heating working as quickly as possible call us now to book an engineer!

Surrey Boiler Repairs installs Vaillant boilers across Surrey, south west London, and central London and can offer a next day boiler installation.

Need Your boiler Repaired?

Book a visit for an engineer to give a free quote now!

Vaillant boiler Repairs and common Problems

Low system water pressure fault code F.24

Combination and system boilers have a low water pressure sensor installed, this prevents the boiler being damaged if it ever ran ‘dry’.

Home owners can resolve this issue without an engineer by simply increasing the system pressure using a ‘filing loop’

Leaking diverter Valve

This fault will not show a code on the boiler display

Vaillant diverter valves leaking is an issue we come across regularly

If there is water leaking form your boiler there is a good chance it is from the diverter valve.

The boilers were originally fitted with plastic valves, which have since been replaced with brass alternatives, so if your boiler is leaking, you will need to book an engineer to access the issue and resolve it.

Intermittent hot water

Poor boiler installation means dirt is left inside the central heating system.

This will blocke the plate heat exchanger and cause the boiler to overheat.

It can be resolved by removing the plate heat exchanger and flushing it through with a strong chemical.

To prevent the problem re occuring book a power flush with us.

“Highly recommend Surrey Gas, the whole process was made so easy right from the survey to the work being carried out. The communication was fantastic and the workmanship outstanding. Thanks very much Surrey Gas”
hollie kiberdGoogle review of Surrey Gas, Oct 2026
“I am very happy with the fast and efficient way Surrey Gas have installed my new boiler .”
Julie DarlingtonGoogle review of Surrey Gas, Sept 2026
“Recently had my boiler replaced by Surrey Gas. The service from initial contact to installation was excellent and informative. Highly recommended!”
Vince WilleyGoogle review of Surrey Gas, Sept 2026
“First class company Immediate response, informative, experienced engineer, courteous follow-up.”
Frances burrowsGoogle review of Surrey Gas, Aug 2026
“Michael attended my property for a boiler and 2 radiator install. He was pleasant,helpful and cleaned up after himself. Would highly recommend.”
Terry BGoogle review of Surrey Gas, Jul 2026
“Great service from start to finish. A very well organised and friendly team.”
HelenGoogle review of Surrey Gas, Jun 2026
“I am very happy with Surrey Gas, Paul fitted & did all the hard work on his own, & I've never seen a man work so well & hard as he did. An extremely nice man. Lauren also so kind & helpful. Well done Surrey Gas.”
Brenda HempleGoogle review of Surrey Gas, May 2026
“Surrey Gas have been great. Excellent communication, The engineer turned up on time was polite did a neat job and left the place tidy, i highly recommend.”
Ben PhillipsGoogle review of Surrey Gas, Apr 2026
“An excellent service from start to finish. Highly tecomended”
Victor KeechGoogle review of Surrey Gas, Apr 2026
“A very efficient service, from boiler quote, to installation and commissioning. Polite, friendly and timely!”
Emma StangerGoogle review of Surrey Gas, Mar 2026
Call nowCall me back