# Boiler service due-date planner

Plan an annual service reminder from the last completed service. Confirm your manufacturer’s schedule first. This does not calculate a landlord safety-check deadline.

Use the tool on the [web page](https://boilerpros.fyi/tools/boiler-service-due-date-planner). It works without JavaScript.

## How to use it

1. Enter last completed boiler service.
2. Read the result.

## How it works

Add 12 calendar months to the last completed service date. HSE advises at least annual service for homeowners in Great Britain. HSE, fetched 2026-11-10: https://www.hse.gov.uk/gas/domestic/faqownerocc.htm

Worcester Bosch says to arrange an annual service to keep its guarantee valid. Other products may have different instructions. Manufacturer page fetched 2026-11-10: https://www.worcester-bosch.co.uk/support/boiler-service

Calendar calculation: the same day next year is used. If that day does not exist, use the last day of that month. This is a reminder convention, not a legal deadline rule.

Keep landlord safety checks separate. HSE describes annual checks and early-check provisions that can preserve an existing deadline. Do not reset that deadline from this service date. HSE, fetched 2026-11-10: https://www.hse.gov.uk/gas/domestic/faqlandlord.htm

> Planning only. A reminder does not establish appliance safety, satisfy a landlord duty or replace manufacturer instructions. For a suspected leak or carbon monoxide exposure, leave for a safe place and contact the local emergency service.

## Questions

### Is this a legal compliance check?

No. It creates an annual service reminder. Ask the appropriate authority about duties for your property.

### What if the boiler has a fault before the date?

Contact a qualified engineer. Do not wait for a service reminder if an alarm sounds or gas safety is in doubt.