Frequently asked questions.
If your question isn't answered below, please ask our friendly chat AI as this has access to our entire knowledge base and will be able to provide an answer for you
How quickly will it pay for itself?
Typically within 12 months through guest charging revenue, often sooner with just a few extra bookings. After that, it's pure profit, a permanent feature that keeps generating income stay after stay, year after year. You're not just covering costs; you're creating a revenue stream while future-proofing your property.
Plus iconPlus icon
What’s the difference between the Home 7 and Home 22?
The Home 7 and Home 7 Plus are both single-phase AC chargers and will deliver up to 7.3kW (32 amps) to your car. The Home 22 is a three-phase charger and can deliver up to 22kW—three times the power. Just keep in mind, you’ll need a three-phase power supply to get the full 22kW.
Plus iconPlus icon
How much does it cost to install an EV charger?
Standard installations start at £425 including VAT, with upfront costs typically offset within 12 months through guest usage. This covers a 7kW (single phase) installation, up to 4 hours on-site, and up to 15 meters of cable run. Costs increase if you need additional work such as drilling through multiple walls, trenching, working at height, or three-phase installations.
Plus iconPlus icon
How does guest payment work?
You have two options. Use Tap Electric (free for hosts) where guests scan a QR code on the charger, pay automatically, and the money goes straight to your bank account. Or check the Simpson & Partners app to see exactly how much energy was used and collect payment before guests leave. Either way, you set your own kWh rate and guests understand they need to pay, just like they would at any public charging point.
Plus iconPlus icon
What is the difference between single-phase and three-phase power?
Single-phase power is the standard electricity supply for most UK homes — around 85% of domestic properties use it. It delivers electricity through one live wire and is protected by a single fuse (typically rated at 60, 80, or 100 amps). With single-phase, the maximum charging rate for an EV charger is usually 7.3kW, which is ideal for overnight charging and suits most households. Three-phase power, on the other hand, is more common in commercial buildings or larger homes. It uses three live wires, allowing electricity to flow more efficiently and at higher capacity. If your property has a three-phase supply, you can install a charger capable of delivering up to 22kW —useful for larger battery EVs or homes with multiple electric vehicles needing faster turnaround. In short: • Single-phase = up to 7.3kW charging, standard for most homes • Three-phase = up to 22kW charging, suited for high-demand setups, commercial car parks, multi-dwelling residences.
Plus iconPlus icon
My Car Keeps Charging Beyond the Limit Set in the Octopus App
If your car is charging beyond the limit set in the Octopus app, it’s because the charge limit is not controlled by the app or the Simpson & Partners charger — it must be managed by your vehicle directly. Why This Happens • The Octopus Intelligent tariff controls when your car charges, not how much it charges. • The Simpson & Partners charger delivers energy during allowed charging times but cannot stop charging at a certain battery percentage. • Only your vehicle can limit the charge level. Neither the Octopus app nor the charger can override this.
Plus iconPlus icon
How long will the Accoya wood last?
We make our wood lids out of real wood Accoya. Accoya wood is a dimensionally stable, modified pine that undergoes a special acetylation process. It doesn’t warp, swell or shrink becuase small water molecules inside the wood are effectively replaced by acetic acid. ie it's 'pickled'. The result is real wood that doesn’t rot. We finish our lids in four beautiful translucent shades which allow the grain of the wood to shine through. Accoya wood is guaranteed not to rot in 50 years and is used by architects around the world of domestic and commercial buildings, window and doors, cladding and bridges.
Plus iconPlus icon
What is Three-Phase Supply?
Three-phase power is term used for describing the amount of power going into a building from the national grid. It is more commonly found in commercial buildings or larger homes. It uses three live wires, allowing electricity to be delivered more efficiently and at a higher capacity than the more common single-phase power. If your property has a three-phase supply, this means that it supports up to 22kW charging. So if you install a 22kW charger, you’ll be able to send up to 22kW to your vehicle. Which can be useful for vehicles with larger on-board battery or busy households with 2 or more EVs. If your home has single phase power, then you'll be able to happily charge up to 7kw.
Plus iconPlus icon
What maintenance or aftercare is needed for a home EV charger?
Minimal! All Simpson & Partners EV chargers are built to last and weatherproof. We recommend: • Occasional visual checks for wear or damage • Keeping the cable clean and safely stored • Software updates (done automatically via Wi-Fi) • Do not use harsh chemicals (eg bleach) • Never jet wash your EV charger And if you need support, our UK-Cotswolds based team is here to help.
Plus iconPlus icon
Can I arrange my own installer and will this affect the Warranty?
Absolutely! You're welcome to use your own qualified electrician to install your Simpson & Partners Home Series charger. We recommend sharing our installer guides with your electrician beforehand – they'll find our chargers straightforward to install Good news about your warranty: Using your own installer won't affect your warranty at all, as long as the installation is completed by a qualified professional.
Plus iconPlus icon
What features should I look for in an electric vehicle charger for commercial use?
Choosing the right EV charging solution for your hotel, business, or facility means finding a system that serves your guests, staff, and visitors reliably while fitting your operational needs and budget. Simpson Partners' Commercial Series delivers elegant, commercial-grade AC charging designed specifically for hospitality venues, workplaces, apartment blocks, and visitor car parks. We work with you and qualified electrical engineers to tailor a charging solution that meets your requirements on time and on budget. Key Features to Consider: Charging Speed – 7–22 kW AC charging suits guests and staff who park for extended periods, ensuring vehicles are ready when needed. Flexible & Scalable – We offer dual socket pedestals, single socket wall mount models, and plinth-only models to suit your site layout and budget. Start with what you need today and expand easily as EV adoption grows among your guests and team. Our plinth-only option is a clever way to future-proof your charging: install the plinth infrastructure now alongside your active chargers, then add sockets later when budget allows. This cost-effective approach gets the groundworks done once, saving you money and disruption down the line. Easy Management – Our commercial chargers are OCPP-compliant, allowing seamless control through third-party specialist energy apps such as Fuuse, Tap, and Wevo. This means seamless integration if your site already has solar PV, battery storage, and daytime charging. Tap, for example, is a free app for landlords and businesses that cleverly bills users when they charge their car, with payments going straight into your bank account. Built to Last – Robust, weather-resistant designs withstand heavy use in outdoor and high-traffic environments. Future-Proof Compatibility – Universal connectors and open standards ensure your investment works with all vehicle types and avoids vendor lock-in.
Plus iconPlus icon
If Octopus controls charging, will it always be off-peak?
Not necessarily. Octopus may charge your car at any time to optimise cost and carbon efficiency. Your bill will still reflect the lower smart charging rate.
Plus iconPlus icon
What’s the difference between Tethered and Untethered chargers?
Tethered: The charger comes with a cable permanently attached, so it's quick and easy to plug in and go. This is ideal if you always use the same vehicle and want maximum convenience. Untethered: The charger has no fixed cable — you use your own instead. This gives you a neater look with no cable on show when not in use. You can also leave your cable plugged into the charger between charges if you prefer, giving you the best of both worlds.
Plus iconPlus icon
What happens if the charger stops working?
Simpson & Partners chargers are engineered for reliability with close to zero downtime. If you ever need support, our technical team is available Monday–Friday 9am–5pm and Saturdays 9am–12pm at 01285 405 410. We resolve issues quickly to keep your guests happy and your reviews positive. Emma from Beaumont House explains: "I have particularly noticed repeat business from guests with electric cars, they like the reliability of the chargers as they know they always work. We haven't had any negative reviews at all since the Simpson chargers were installed. With our previous chargers, guests often thought they weren't working and gave up, which regularly resulted in negative customer reviews online."
Plus iconPlus icon
can-i-monitor-charging-usage
Yes. Usage can be monitored via the Simpson & Partners app, which works independently of internet connectivity or Octopus integration. You can track energy consumption and charging sessions directly through the app.
Plus iconPlus icon
What if I don’t have a wall to mount the charger?
No problem! We offer freestanding posts with a single socket, allowing you to install a charger anywhere in your driveway or garage. These posts feature a fully integrated, discreet, and slim design. No wall? No problem!
Plus iconPlus icon
Will I need to make any electrical upgrades to my property?
It depends on your existing setup. A qualified installer will assess your consumer unit and electrical capacity during the survey. If upgrades are needed (such as a new consumer unit to meet safety regulations) costs are typically around £85 and can be included in your installation quote. Emma from Beaumont House recommends: "Check your electrics first. We have 3-phase, meaning we could install as many chargers as we wanted within our budget. We opted for two 22kW chargers initially but made the underground pipework suitable for further cables as I hope to install more in the future."
Plus iconPlus icon
What’s the difference between a Wired vs Wireless Energy Manager?
A Wired Energy Manager is a hard-wired kit that monitors your home’s power draw, so your charger knows when to throttle EV charging to avoid overloading your main supply. A wireless Energy Manager gives you the same load-balancing benefits, but communicates over wireless — handy if you want cleaner install and simpler cabling. Both options protect your home electrical system while optimising charging.
Plus iconPlus icon
How does Simpson & Partners protect my data differently from other brands?
We combine privacy-first design with banking-grade security. Unlike others, we don’t collect personal details, and all data is anonymised. Plus, we use encrypted connections and UK-based secure servers to keep your information safe, just like your online banking.
Plus iconPlus icon
My charger is out of Warranty, are you able to help?
Our V3 hardware now comes with an industry-leading 5-year hardware warranty. But support doesn’t stop there; whether you’re an existing customer or someone with a charger from the previous company, we’re committed to supporting you long into the future. For chargers that are out of warranty, we aim to provide ongoing help along with replacement hardware at cost where needed. We’re also launching a full catalogue of replacement parts, allowing you (or your installer) to repair your charger easily. This will include everything from front panels and lids to PCBs, sockets and even the small fixings. We’re also introducing a V3 Upgrade Programme, giving you the option to update your charger’s internal hardware to the V3 platform and benefit from the latest features and reliability improvements. So even if your warranty is coming to an end, there’s no need to worry we’ll continue to support you and ensure your charger stays reliable for the long term.
Plus iconPlus icon
How do I choose the best electric vehicle charging solution for my needs?
Choosing the right EV charging solution depends on your property, vehicles, and how you'll use it. At Simpson & Partners, we've built a product solution designed to hit all the things that matter – our chargers are beautiful, durable, repairable and upgradable, so they won't end up in landfill. Here's what to consider: Charging speed – 7 kW works well for standard overnight home charging and runs on single-phase power available in most homes. 22 kW is better for faster top-ups and larger batteries, but requires a three-phase power supply, which typically isn't widely available in domestic properties. Charger type – Tethered chargers offer convenience with an attached cable, untethered gives you flexibility to use your own cable, or choose a freestanding unit if you don't have a suitable wall. Smart features – Our chargers connect with Intelligent Octopus and offer app monitoring, energy management, and integration with smart tariffs to help reduce costs. Installation location – Wall-mounted chargers suit most homes, while freestanding units work well for driveways and commercial sites. Home vs business use – We offer a dedicated commercial range built for heavy-duty business environments and high-demand use, featuring RFID access control, MID metering for accurate billing, and built-in RCBOs for safety. For home charging, we provide industry-leading warranties: 10 years on the enclosure and 5 years on the electronics, giving you complete peace of mind. Future-proofing – Our chargers can be upgraded for emerging technologies like V2G (vehicle-to-grid), and because they're repairable, they're built to last for years to come. Design and aesthetics – Choose colours and finishes that complement your property, with options suitable for heritage or listed buildings.
Plus iconPlus icon
Can I use my own installer?
Yes. Any qualified electrician can install Simpson & Partners products. If you have your own trusted electrician it's a good idea to share installer guides with them ahead of time.
Plus iconPlus icon
Do the chargers work in extreme weather?
Yes. All chargers (freestanding and wall mounted) are IP-rated, weatherproof and designed for outdoor use in rain, snow, or extreme temperatures.
Plus iconPlus icon
Why is standard installation from £425 excluding vat?
Every installation is different and every installation cost varies. We've been in the charging industry for years and there are too many variables to stick to a one price fits all. Having said that, we have given a 'from' price for standard installation for transparency and to give our customers a rough indication of what to expect to pay for. We believe this is a very fair cost. All Trusted Partners are local independent electricians that we have known for years, selected for their commitment to great workmanship and high levels of customer service.
Plus iconPlus icon
Who are Simpson & Partners, and why do people trust us?
We’re a UK-based EV charger manufacturer. Founded in 2018 by husband and wife team Mandy and David Simpson, who focus on creating high-performance charging solutions with excellent design aesthetics and smart future proof technology. S&P chargers are designed and built to meet real-world needs. Customers trust us because we combine innovative engineering know-how with exceptional support, ensuring your EV always charges safely and efficiently today and into the future. S&P are proud to say that it is their ethos their chargers are not destined for landfill. Trusted by over 700 qualified electricians in the UK. We have a 4.3* rating on Trustpilot. Our chargers are built by us in our HQ based in the Cotswolds SN16 9SH. All our chargers are upgradeable and repairable.
Plus iconPlus icon

Need more help?

Can’t find what you’re looking for in the support hubs, or need help troubleshooting an issue? Our friendly, knowledgeable support team is here to help.