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Created by Gas Engineers, for Gas Engineers • We only sell Genuine Boiler Spares • HSP - Where The Trade Buy


Heating spares official boiler parts stockist

Check out our great offers on gas & oil spares from leading manufacturers.

HSP are domestic and commercial parts suppliers delivering genuine heating spares. We guarantee that boiler spares on our website are 100% original. We offer 24-hour delivery on first-line spares.

HSP only stock genuine spares

Locate your appliance from the search boxes above to identify your parts

  • Boiler spares approved stockist - HSP is one of UKs the largest independent plumbers merchants we only sell 100% genuine OEM parts.
  • Original heating components last longer & safety matters! Fully legal - Compliant with European & UK standards & legislation.
  • Non-genuine parts are typically inferior & sub-standard.
  • 99% of 1st line heating spares in stock including oil boiler spares & accessories.
  • Over 7000 qualified heating engineers are regular HSP customers.

Boiler diagrams & schematics

If you require assistance in the identification of specific boiler spares, then it would be worth looking at our exploded boiler diagrams. We have a vast range of appliance schematics and using our zoom function & keymap you can identify part numbers quickly and easily. You never need to order the wrong spares again. View Diagrams


Boiler Diagrams & Schematics


HSP Vaillant information partner

At HSP we make ordering boiler spares easy

  • HSP boiler information library - visit any time & it's free. Easy boiler parts identification - no purchase necessary.
  • Parts finder lets you find the correct parts for your appliance first time.
  • Boiler schematics make identifying spares easy.
  • Search our database for spare parts numbers, gas codes, GC numbers & oil serial numbers.
  • We offer user manuals, appliance service instructions & boiler workshop manuals. Can't find your appliance manual or diagram? Let us know.
  • Looking for spares for older boilers that are obsolete? We often stock them or could source them from the heating federation if they are still available.
  • HSP stock heating spare parts approved & tested by manufacturers for quality & reliability.
  • Commercial & industrial boiler spares at trade prices.


Flexible delivery options

We offer next day delivery on first line spare parts via our secure online parts ordering system.



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