So, you’ve finally made the jump. You’ve traded the diesel engine for a shiny new electric vehicle (EV), and you’re ready to embrace the future of driving on Surrey’s roads. Whether you’re commuting from Redhill to London or taking the family out to Box Hill for the weekend, having a home charger is a total game-changer. No more hunting for a working public pod in a rainy supermarket car park.
However, we see it all the time at ADS Electrical: homeowners in Surrey rushing into an installation without thinking through the details. Getting an EV charger isn't quite as simple as plugging in a toaster. From choosing the wrong hardware to neglecting your home’s electrical capacity, there are plenty of pitfalls that can turn a "green" dream into an expensive headache.
If you’re looking for EV Charger Installation Surrey, you need to get it right the first time. Here are the seven most common mistakes we see and exactly how you can fix them.
1. Choosing the Wrong Charger Type (Tethered vs. Untethered)
One of the first decisions you'll face is whether to go for a tethered or untethered charger.
- Tethered: This has the cable permanently attached to the unit.
- Untethered (Socketed): This is just a socket on the wall; you provide your own cable.
The mistake? Many Surrey drivers choose based on price alone rather than lifestyle. If you value convenience, a tethered charger is king: you just pull up and plug in. If you care about aesthetics or want to "future-proof" for different types of EVs, an untethered unit looks tidier and allows you to swap cables as technology changes.
How to fix it: Think about your driveway layout. If your charger is right next to the car, tethered is great. If you have to walk around the car, a separate cable might be less of a trip hazard.
2. Neglecting the Load Assessment (The Fuse Board Issue)
This is a big one. An EV charger pulls a lot of power: usually about 7kW. That’s roughly the same as running three power showers at once for several hours. Many older homes in Redhill and the surrounding Surrey villages have fuse boards (consumer units) that simply weren't designed for that kind of sustained load.
If you skip a professional assessment from a qualified electrician Redhill, you risk tripping your main fuse or, worse, damaging your home’s wiring.
How to fix it: Always ensure your installer performs a "maximum demand" calculation. At ADS Electrical, we check if your incoming supply can handle the extra weight. Sometimes, we might need to install a "load management" device that automatically slows down your car’s charging if you turn on the oven and the power shower at the same time.
3. Poor Placement on the Driveway
You’d be surprised how many people install a charger on the left side of their garage only to realise their new car’s charging port is on the back-right. Or worse, they install it inside a garage that is too tight to actually park in.
The cable that comes with most chargers is usually 5 to 7.5 metres long. If you have to stretch it across a walkway, you’re creating a trip hazard for your neighbours or family.
How to fix it: Before we drill any holes, we always recommend "shadow parking" your car exactly where you intend to charge it. Check the cable reach. Consider where you might park a second EV in the future, too!
4. Hiring a Non-Certified Installer
We get it: everyone wants to save money. But "mate’s rates" from a general handyman can be dangerous when it comes to high-voltage EV tech. An EV charger installation must comply with BS 7671 (18th Edition) and Part P building regulations. It also needs to be registered with your local Distribution Network Operator (DNO).
If you don't use a certified professional like ADS Electrical, your car’s warranty could be voided, and your home insurance might not cover you in the event of an electrical fire.
How to fix it: Only use OZEV-approved installers who provide a building regulations compliance certificate and an Electrical Installation Certificate (EIC). You can find more about our certified process at https://www.adselectrics.com/electric-vehicle-charger-installation-redhill-surrey/.
5. Ignoring Smart Charging and Time-of-Use Tariffs
If you’re still charging your car at 6:00 PM when you get home from work, you’re likely paying the highest possible rate for your electricity. Many Surrey residents miss out on hundreds of pounds of savings every year because they don't understand "Smart Charging."
A smart charger allows you to schedule your charging for the middle of the night when electricity is cheapest (and greenest).
How to fix it: Choose a charger with a high-quality app. When you book your EV Charger Installation Surrey, ask about integrating your charger with "Time-of-Use" tariffs like Octopus Agile or Go. By charging between 12:00 AM and 4:00 AM, you could cut your "fuel" costs by 70% or more.
6. Forgetting About Future-Proofing (Solar and V2G)
Surrey is one of the sunniest parts of the UK. If you have solar panels: or are thinking about getting them: installing a standard "dumb" charger is a mistake. You want a charger that can "solar divert," meaning it takes the excess energy from your roof and puts it directly into your car battery for free, rather than selling it back to the grid for pennies.
There is also the future of "Vehicle-to-Grid" (V2G) technology to consider, where your car acts as a giant battery for your house.
How to fix it: Even if you don't have solar today, choose a charger like the Zappi or certain Ohme models that are solar-ready. It’s much cheaper to install a compatible unit now than to replace it in three years.
7. Waiting Too Long to Get a Quote
The EV world moves fast. In Surrey, the demand for qualified installers is skyrocketing. We often see people wait until the day their car is delivered to call an electrician Redhill, only to find out there’s a three-week wait for an installation slot.
Furthermore, many companies take days or even weeks just to get a price back to you, leaving you stuck using a slow 3-pin "granny cable" that takes 24 hours to charge your car.
How to fix it: Look for a company that values your time. At ADS Electrical, we pride ourselves on our 24-hour quote promise. We know you want to get moving, and we make sure the paperwork doesn't slow you down.
Why Surrey Homeowners Choose ADS Electrical
Installing an EV charger is an investment in your property and your lifestyle. It’s about more than just wires; it’s about safety, efficiency, and future-proofing your home.
When you work with ADS Electrical, you’re not just getting a guy with a drill. You’re getting a team that understands the local Surrey infrastructure, from the older terrace houses in Redhill to the modern estates in Reigate. We take the stress out of the process by handling the DNO applications, the load assessments, and the technical setup.
Ready to stop making mistakes and start charging smarter? Whether you need a simple home install or a complex commercial setup, ADS Electrical is here to help.
Contact us today for a fast, professional quote and let’s get your Surrey home ready for the electric revolution.
- Website: https://www.adselectrics.com/electric-vehicle-charger-installation-redhill-surrey/
- Service Area: Redhill, Reigate, Horley, and across Surrey.
- Speciality: EV Charger Installation Surrey, Domestic & Commercial Electrical Services.