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Every electrical installation has a certificate with a re-inspection period: 10 years for a home, 5 for professional use, 2 for assembly spaces. Enter the category and the issue date to see the expiry.
An expired certificate can block a connection, a sale, a new supply or an insurance claim. This page gives the expiry date and a reminder, not a confirmation.
publishes the maximum period per category: A up to 10 years, B 5 years, C 2 years. The expiry is the issue date plus the period, and the same date is the re-inspection date.
Certificates issued before 8 October 2021 keep the periods in force when they were issued. Those older periods are not documented here, so the tool does not guess: it asks for the years printed on the certificate and, without them, says "check the paper certificate" instead of inventing a date.
An extraordinary inspection does not wait for expiry: a category or consumer change, a panel or earthing modification, an accident, a disaster or an authority order forces it earlier.
A flat with a category A certificate issued on 20 May 2019 expires on 20 May 2029, with a reminder on 20 April 2029. A category B business certificate issued in 2023 expires in 2028.
Up to 10 years for category A, which covers homes and shared installations. Professional use drops to 5 years and assembly spaces to 2.
It predates 8 October 2021, so the period printed on it applies. Enter those years and the date appears; without them the tool gives no number.
The owner needs a valid certificate for the supply and for any new connection. does the check, not this tool.
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Your result updates as you type.
Check the paper certificate
This certificate was issued before 8 Oct 2021, so the older period applies. Enter the years printed on it.
Valid for
—
Period under today's rules
10 years
Reminder
—
We took what you entered, checked it against the rules and, where no rule exists, used an estimate.
Before 8 Oct 2021 the interval printed on the certificate applies
You: —
Source: ΔΕΔΔΗΕChecked 30 October 2026
Check the paper certificate
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Buying or selling a property? See the full purchase cost too.
Category A up to 10 years, B 5 years, C 2 years, per ΔΕΔΔΗΕ. An extraordinary inspection is required after a category or consumer change, a panel or earthing modification, an accident, a disaster or an authority order. This is not a ΔΕΔΔΗΕ confirmation.
ΥΔΕ expiry
Check the paper certificate