Frequently asked questions
What is the minimum amount?
At least one smoke alarm on each floor or level of a home for every started 60 square metres.
Who is responsible for providing the smoke alarm?
The rules changed in 2026. The current division of responsibility is shown below the calculator and in the smoke alarm guide.
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Also read
- Smoke alarm for the home 2026: how many are needed and who is responsible?
- Home preparedness and burglary protection: how to protect your home and prepare for disruptions
- Rescue plan, fire inspection and escape safety 2026
Other calculators
The calculator gives an indicative estimate and does not replace the advice of an authority, bank, insurer or accounting firm. The calculator's figures and their sources are shown below the calculator.