Is WattLock legit or a scam?
Updated October 2026 · WattLock UK team
It's smart to check before you buy any energy-saving device online. Here are the facts, so you can decide for yourself.
Quick answer
Yes, WattLock is legit. It's a real plug-in device sold through Shopify's secure checkout, delivered free to UK addresses and backed by a 30-day money-back guarantee. We don't promise fixed savings – and you should only buy it from wattlock.co.uk.
WattLock at a glance
- Product
- Plug-in energy saver for UK 3-pin sockets
- Price
- From £39 (VAT included)
- Sold by
- Only at wattlock.co.uk
- Checkout
- Shopify secure checkout
- Delivery
- Free tracked UK delivery
- Guarantee
- 30-day money-back
- Support
- support@wattlock.co.uk
The legit checklist
Use these checks for any energy saver you're thinking of buying. Here's how WattLock does – each tick links to the proof.
Red flags of energy saver scams
Warning signs
- Promises to 'halve your bill' or exact savings
- No returns address, policy or guarantee
- No way to contact the seller
- Foreign plug that needs an adaptor
- Hundreds of five-star reviews overnight
- Countdown timers that reset when you reload
How WattLock compares
- No fixed savings promised – results vary
- 30-day money-back guarantee and returns page
- UK email support at support@wattlock.co.uk
- British 3-pin plug, no adaptor
- No invented reviews or star ratings
- Clear prices, VAT included, free delivery
Why some people call energy savers a scam
Over the years, some plug-in "electricity saving boxes" have been sold with impossible claims, little information about who made them and no way to get your money back. That has understandably made people sceptical of the whole category.
WattLock takes a different approach. It's a small plug-in device built around a TrueWatt circuit with an approved capacitor in a fire-resistant casing. We don't promise a fixed percentage saving, because results depend on your appliances, your wiring and your tariff. If any website promises you'll halve your bill, treat that as a warning sign. Read more in does WattLock work?
How your payment is protected
- Payments run on Shopify's encrypted checkout – we never see your full card details
- Pay by Visa, Mastercard, American Express, Apple Pay or Google Pay, which have their own buyer protection
- Our 30-day money-back guarantee is on top of your UK consumer rights
- Returns, shipping, privacy and terms pages are published in full and linked in every page footer
Order WattLock
Up to 62% off- 1Enter delivery address
- 2Pay securely
- 3Dispatched with tracking
Free UK delivery
30-day money-back guarantee. Not happy? Send it back for a full refund. Read the terms. Secure Shopify checkout, prices include VAT.
Test it yourself, risk-free
- Note your daily kWh from your smart meter, or take a meter reading at the same time each day, for 7 days.
- Fit one WattLock on each socket circuit – see how to use WattLock.
- Keep taking the same readings for 2–4 weeks with your usual routine.
- Compare days with similar weather and habits.
- Not happy? Email us within 30 days of delivery for a full refund.
Honest about reviews
We're a new UK store, so there are no verified customer reviews to show yet – and we won't invent any. Fake reviews are illegal under UK consumer law, and they're a common sign of a scam. Verified reviews will appear on our WattLock reviews page as customers send them in.
Still unsure? Ask us anything before you buy – our UK team will reply by email.
Email usIs WattLock legit? Questions
Free UK delivery · 30-day money-back guarantee