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EFFICIENCY THAT PAYS OFF.

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DATA-DRIVEN SAVINGS.

DATA-DRIVEN SAVINGS.

ENGINEERED FOR MAXIMUM ENERGY EFFICIENCY.

FREE DELIVERY.

FREE DELIVERY.

ON ALL UNITED KINGDOM ORDERS ABOVE £25.

DIRECT FROM FACTORY.

DIRECT FROM FACTORY.

ENSURING OUR LOW COSTS ARE RECIPROCATED TO OUR CLIENTS.

WATER FILTERS.

NO INSTALLATION HASSLE—JUST CLEANER, HEALTHIER, AND MORE AFFORDABLE DRINKING WATER STRAIGHT FROM THE TAP.

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ELECTRONICS.

HIGH-EFFICIENCY ELECTRONICS THAT CUT YOUR ENERGY BILLS WITHOUT SACRIFICING PERFORMANCE OR CONVENIENCE.

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HOUSEHOLD BASICS.

ECO-CONSCIOUS ALTERNATIVES FOR EVERYDAY ESSENTIALS THAT HELP LOWER EXPENSES AND ENVIRONMENTAL IMPACT.

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TAPSMART™ 2.0 STARTER KIT (1 CHARGEFLOW™ CARTRIDGE INCLUDED). image 0

'TapSmart™' by Sustainabuy - Make Your Tap Water Instantly Drinkable.

The average UK household spends £300–£400 per year on bottled water. By switching to TAPSMART™, you can cut that cost down to nearly zero—while also reducing plastic waste. It’s better for your wallet, your health, and the planet. And yes, we’ve got the data to prove it.

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A MESSAGE FROM OUR CEO.

At Sustainabuy, we believe it is unacceptable that in today's world, so many families continue to face difficulties paying their energy bills. No household should be forced to choose between staying warm and maintaining basic living standards.

I founded Sustainabuy with a single mission: to save our clients money. Every product we offer is backed by real-world data and selected for proven savings. By operating a lean, efficient business model, we are able to pass those savings directly to our valued customers.

Our goal is simple — to help you cut costs, waste less, and live smarter, without compromise.

Elias Loukas,
Founder & CEO, Sustainabuy.

FREQUENTLY ASKED QUESTIONS

Not at the moment, but we’re actively exploring options to expand our operations into Europe. Stay tuned — we hope to offer EU shipping in the near future!
Orders are typically delivered within 2–5 working days across the UK.
If you’re not satisfied, you can return your product within 30 days for a full refund.

INSIGHTS TO HELP UK HOUSEHOLDS SAVE AND LIVE SUSTAINABLY

How UK Households Can Reduce Their Energy Bills in 2025: A Scientific Guide.

Rising energy costs are putting pressure on UK households. This guide uses data to explain how efficiency improvements can lower bills and reduce household CO₂ emissions.
READ THE GUIDE

How Our Tap Faucet Filter Can Help UK Households Cut Their Water Bills

Discover how reducing water waste at home can lower monthly bills and support sustainable living, using practical examples backed by household consumption data.
READ THE ANALYSIS

UK Households and the Global Energy Efficiency Push.

Rising energy efficiency demands are shaping UK households. This analysis uses data and research to explain how efficiency trends lower energy use and emissions.
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Helping Over 100 Households Cut Their Energy Bills — And Counting.

At Sustainabuy, we believe in transparency and value. Our mission is simple: help you save money while making smarter, more sustainable choices.

We carefully select energy-efficient and eco-friendly products backed by real data and testing. By keeping our operations lean and cutting out unnecessary costs, we pass those savings directly to you—so you always get the best possible price.

Join the growing community of households already reducing their energy bills and environmental impact. Every product we offer is chosen with your budget and the planet in mind.

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