Commissioning and the paperwork you should receive afterwards
Commissioning is the formal process of confirming a newly installed appliance is working correctly and safely before it is handed over for everyday use, and it comes with paperwork that matters for warranty and compliance purposes. Keeping this paperwork safe is worth doing from day one.

Commissioning paperwork explained in plain terms
Commissioning typically includes checking gas or oil combustion performance, verifying safe operation of controls and safety devices, and completing a benchmark or commissioning checklist specific to the appliance. Gas work is notified to the relevant Building Regulations authority via the Gas Safe scheme, and you should receive confirmation of this alongside a completed commissioning record for your own files and any future warranty claims.
Relevant registrations
- Gas Safe registered for domestic gas boiler work
- OFTEC registered for oil boiler work
- Worcester Bosch Accredited Installer
Things worth knowing about commissioning paperwork
- Combustion performance and safety devices are checked during commissioning
- A completed benchmark or commissioning checklist should be provided
- Gas work notification to Building Regulations happens via the Gas Safe scheme
- Commissioning paperwork supports any future warranty claim
- Keeping paperwork with the boiler manual makes future servicing easier
Questions we get asked
- What if I don't receive commissioning paperwork?
- This should always be provided — it's worth asking directly if it hasn't arrived before the engineer leaves.
- Do I need to register the boiler myself?
- Warranty registration is a separate step, usually completed shortly after commissioning — worth confirming who handles this.
Related help pages
- Cost driversRemoval and disposal of your old boiler or tank
- ProcessHow hot water demand is assessed for a new system
- Cost driversWhen pipework upgrades are needed and why
- Comparing quotesWhy the cheapest quote isn't always the best value
- Repair or replaceWhen a boiler repair genuinely stops making sense
- Property typeLoft-sited boilers: access, safety platform and condensate falls
Services that cover this
Where we deal with this
Straight answers on commissioning paperwork
Where this leaves you: Commissioning paperwork confirms the job was done properly and protects your warranty — keep it safely with the boiler manual.
Jamie Crawford Heating is based at 24 Bristol Road, Radstock, BA3 3EE.
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