WattLock Energy Saver price in the UK
Updated October 2026 · WattLock UK team
Current official prices, in pounds, VAT included. Delivery to UK addresses is free.
Quick answer
WattLock costs £39 for one, £59 for two, £78 for three (£26 each – best value) or £117 for four. Prices include VAT and UK delivery is free.
WattLock prices (October 2026)
| Bundle | Was | Now | You save | Per unit | Best for | |
|---|---|---|---|---|---|---|
| 1 × WattLock | £78 | £39 | £39 (50%) | £39 | Flat or small bungalow | |
| 2 × WattLockMost popular | £156 | £59 | £97 (62%) | £29.50 | 2–3 bed house | |
| 3 × WattLockBest value | £234 | £78 | £156 (67%) | £26 | House + kitchen circuit | |
| 4 × WattLock | £312 | £117 | £195 (63%) | £29.25 | Large home / extension |
The 3-pack is the cheapest per unit at £26 each. Most 2–3 bed houses have two socket circuits, so the 2-pack (second one half price) is our most popular choice.
Which bundle for my home?
One WattLock covers one socket circuit. Pick the card that matches your home, or check your fuse box in a minute.
Choose your bundle
Up to 62% off- 2 × WattLock
- £59.00
- UK delivery (tracked)
- FREE
- Total (VAT included)
- £59.00
- 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.
What's included in the price
- VAT – the price you see is the price you pay
- Free tracked UK delivery on every bundle
- 30-day money-back guarantee
- UK email support before and after you buy
- Secure Shopify checkout
- No subscription, app or extra fees
Is WattLock worth the price?
WattLock is a one-off purchase with no subscription, batteries or app, and it's designed to stay plugged in for years. Spread over several years, even a single unit costs only a few pounds a year – and in the 3-pack, each unit is £26.
What it's worth to you depends on your home. Results vary with the appliances on each circuit, how long they run and your tariff, so we don't promise a fixed saving. The fairest way to decide is to try it: note your smart meter or meter readings, fit WattLock on each socket circuit and compare over a few weeks. If you're not happy, you have 30 days to get your money back.
WattLock compared with other energy-saving buys
Here's how WattLock's price compares with other popular items UK households buy to keep energy use in check. These are typical prices, not savings estimates.
| Item | Typical cost | Fitting | Covers |
|---|---|---|---|
| LED bulb | £2–£5 each | Easy | One light |
| Smart plug | £10–£20 each | App set-up | One appliance |
| Smart thermostat | £150–£250 | Often an installer | Heating |
| WattLock Energy Saver | £26–£39 per unit | Plug in, 10 seconds | A whole socket circuit |
Many homes use a mix: LED bulbs for lighting, smart plugs for timers and WattLock on each socket circuit. See WattLock vs smart plugs and energy saving devices for UK homes.
Where to buy WattLock at the best price
- Official website (wattlock.co.uk): lowest bundle prices, free delivery, 30-day money-back guarantee.
- Amazon, eBay, TikTok Shop: not official sellers – here's why.
- Voucher websites: codes are often fake or expired – see current deals.
- High-street shops: WattLock isn't sold in shops.
WattLock price questions
Free UK delivery · 30-day money-back guarantee