Finding a certified EV charger installer: what to look for

The cheapest quote is rarely the cheapest job. A wallbox bolted on by someone who skipped the earthing check, or never notified the network operator, can cost far more to put right than the few hundred you saved — and at worst it becomes a fire risk on the side of your house. Choosing the right installer matters more than choosing the charger.

So what actually separates a properly certified installer from a man with a van and a drill? It comes down to three things: credentials, paperwork, and how they behave before you've paid a penny.

Credentials worth checking, country by country

Electrical work near your meter is regulated everywhere we cover, but the names differ — and so does what each one lets the installer legally do.

United Kingdom

If you want to claim the EV chargepoint grant, your installer must be OZEV-approved — only approved installers can submit the claim on your behalf. Separately, the electrician should be registered with a competent-person scheme: NICEIC or NAPIT are the two you'll see most. That registration lets them self-certify the work under Part P of the Building Regulations and issue the electrical installation certificate you'll need for insurance and resale.

Germany

The person doing the work has to be an eingetragene Elektrofachkraft — a registered electrical professional. Just as important, the firm must hold an Eintragung im Installateurverzeichnis of your Netzbetreiber. Without that entry the network operator won't accept the wallbox registration, and a unit over 11 kW won't get approval at all. Ask for the registration number; a reputable firm gives it without hesitation.

Netherlands

Look for an erkend, gekwalificeerd installateur who works to NEN 1010, the Dutch standard for low-voltage installations. A keurmerk such as InstallQ (formerly Sterkin) is a good external signal that the firm is audited rather than self-declared. For a heavier connection or a three-phase upgrade, the installer should also handle contact with your netbeheerder.

Country	Must have	Worth having too
United Kingdom	NICEIC or NAPIT registration; OZEV approval for grant claims	Manufacturer training on your charger brand
Germany	Eingetragene Elektrofachkraft; Eintragung beim Netzbetreiber	VDE-AR-N 4100 knowledge, brand certification
Netherlands	Erkend installateur working to NEN 1010	InstallQ / keurmerk, netbeheerder liaison

What a proper quote looks like

Get at least two, ideally three. A serious quote is never a single line. It should follow a site survey — even a five-minute video call counts — and then itemise the charger, the cable run in metres, any board or fuse-box work, the earthing arrangement, and who notifies the grid. If a quote arrives without anyone asking where your meter is, treat it with suspicion.

Watch how they handle the awkward parts. A good installer will tell you upfront that your consumer unit has no spare way, or that the cable has to cross the house, rather than discovering it on the day and adding £300 at the end.

Warranty: hardware versus workmanship

These are two different promises and people conflate them.

The hardware warranty comes from the manufacturer — typically 2 to 3 years on a domestic wallbox. The workmanship warranty comes from the installer, and it's the one worth pinning down in writing. Scheme-registered firms can often back it with an insurance-backed guarantee (NICEIC's Platinum Promise is the obvious UK example), so the work is covered even if the firm later folds. No written workmanship warranty is a quiet red flag.

Red flags that should end the conversation

• Cash only, no written quote. A real business gives you something on paper or by email.
• No company address or registration number you can verify.
• Vague about earthing or grid notification — these aren't optional extras, and an evasive answer means they don't intend to do them.
• Won't provide the certificate or notification afterwards. In the UK that's the electrical certificate; in Germany the Netzbetreiber registration.
• Pressure to decide today for a "special price" that expires by evening.
• No proof of insurance. Public liability cover is standard for legitimate firms.

Any one of these on its own might be sloppiness. Two together, and you walk away.

Making the shortlist

Start with the credential that's non-negotiable in your country, then weigh the quote, the warranty and the way they answered your questions. The installer who patiently explained why your fuse box needs an upgrade is usually a better bet than the one who quoted £200 less and went quiet when you asked about earthing.

That's the gap our directory is built to close. Every installer we list holds the certifications their country's grid operators and insurers expect, so the shortlisting is already half done before you make the first call.