What guarantee should an EV charging station installer provide?
An EV charging station installer should explain separately what guarantee covers the installation work and what manufacturer warranty covers the charger, including exclusions and how faults are handled. Before work starts, ask for these terms in writing alongside the quotation, so you know who to contact if the equipment or installation develops a problem.
A reliable EV charging station installer should provide separate written cover for the charger, the installation work and the support process. The document should state what is covered, how long it lasts, what is excluded and who will put faults right.
Equipment warranty
The charger itself is normally covered by the manufacturer’s warranty. This may cover faults in the unit, internal components and the software supplied with it. The warranty period and conditions depend on the equipment selected, so the installer should identify them before you approve the work.
Check whether the installer registers the charger with the manufacturer. If registration is required, ask who completes it and what confirmation you will receive. Keep the warranty details with the commissioning records, as you may need the model number, serial number or installation date when reporting a fault.
A charger warranty will not usually cover damage caused by impact, unauthorised alterations, incorrect use or problems with your internet connection. It may also exclude faults caused by the vehicle or the wider electrical supply. Those exclusions should be clear rather than hidden in technical paperwork.
Workmanship guarantee
The installation should have its own guarantee, separate from the equipment warranty. This should cover defects in the electrical work, cable routing, terminations, protective devices and mounting of the charger. If a fault results from an installation error, you should know that the installer will investigate and correct it under the stated terms.
Ask specifically whether the guarantee includes the labour and materials needed to correct defective work. A document that covers inspection but leaves you paying for access, replacement parts or remedial labour may not provide the protection you expect.
The guarantee should also identify who remains responsible if the installer stops trading or if another company becomes involved. If the cover is transferable when you sell the property, the paperwork should explain how the new owner makes a claim.
Support after installation
A charger can appear to be faulty when the cause is the vehicle, the home network, a tripped protective device or a change in the electricity supply. The installer should explain the first checks and give you a clear route for reporting a problem.
Good support arrangements tell you:
- who receives the fault report;
- what information or photographs you need to provide;
- whether the installer or manufacturer investigates first;
- how remote diagnostics are handled;
- what happens if the charger needs to be isolated; and
- whether a return visit or replacement is included under the relevant cover.
This matters because manufacturer support may deal with the charger, while only the installer can correct a cable route, connection or protective device. You should not have to decide which party is responsible for each part of the installation.
What the guarantee does not cover
A guarantee normally applies to the charger and installation, not every part of the charging experience. It will not generally promise a particular charging speed if the vehicle limits that speed. It may not cover changes to your broadband, mobile phone, electricity tariff or vehicle software either.
Your quote should make clear whether future changes are chargeable. For example, adding a second charger, moving the unit, upgrading the supply or replacing a damaged cable is usually additional work rather than a warranty repair. Clear exclusions help you distinguish a genuine fault from a new installation requirement.
Check the installation records
Keep the electrical installation certificate, charger commissioning information, operating instructions and warranty documents together. These records show what was installed, how it was tested and which protective measures were fitted.
For electrical work, NICEIC and ECA registration provide an additional indication that the installer works within recognised electrical standards. That certification is not the same as a guarantee, but it supports the quality and documentation of the installation.
Before accepting a quotation, ask to see the guarantee terms in full. At Alderminster Group, we explain the equipment cover, the installation responsibility and the route for dealing with faults before the charger is fitted. That leaves you with a clear record of what happens if the equipment or the work does not perform as it should.
The guarantee should cover the complete charging installation, not just the charger casing. If the system includes a load-balancing sensor, external isolator, cable and protective equipment, the paperwork should identify each part and state who handles a fault.
A sensor or protective device can stop charging even when the charger itself is working. Clear terms prevent you being passed between the manufacturer and installer while each investigates a different part of the system.
Check the effect of later changes, too. Moving the charger, altering the consumer unit or having another contractor modify the circuit may affect the installation guarantee. Ask for written confirmation before any such work takes place, and keep it with the commissioning records.
