GreenGauge gives you the energy knowledge, the tutorials, and the real-world results from homes like yours — so you know exactly what to do, why it works, and what it will save.
Every part of GreenGauge is built around one question: what does your home actually need, and what will make the biggest difference?
Step-by-step tutorials for every home improvement that affects your energy performance — from a £5 draught-proofing job to full wall insulation. Every tutorial shows you the real impact: what it costs, what it saves, and how it changes your home’s thermal behaviour. Built on building physics, not marketing copy.
Answer a structured questionnaire about your property’s construction, windows, orientation, and fabric. Receive a real building physics analysis and a prioritised improvement roadmap — at a fraction of the cost of a site visit.
Get your analysisHomeowners share real before-and-after outcomes, structured by property type, era, and improvement stage. Find someone with the same house as yours and see exactly what worked.
Browse resultsWhen you need a formal EPC or professional energy assessment, find a qualified Domestic Energy Assessor near you. Browse by location and distance, and go into the appointment informed.
Find an assessorEnter your gas, electricity, and water figures and instantly see how your home compares against UK averages and efficiency targets — no login needed.
Open Usage GaugeA clear path from not knowing where to start, to a measurably warmer, cheaper home.
Use the Remote Energy Model to get a building physics picture of your property — where heat is being lost and where the biggest gains are.
Every tutorial is written around your property type and the energy impact of each task — not generic advice, but specific guidance for your home.
Browse community results from the same property type, era, and construction as yours. See real costs, real savings, and honest accounts of what worked.
For a formal EPC or a complex situation, connect with a qualified assessor near you — and arrive informed, not starting from zero.
You’ve just bought a home and have no idea where to start. GreenGauge gives you a clear picture of your property’s performance and a logical order for improvements — starting with the changes that make the biggest difference for the least cost.
You already do your own work and want to make sure it’s the right work. The energy model and community results let you verify that the project you’re planning will actually deliver the savings you expect — before you spend a penny.
You’re thinking about insulation, a heat pump, or solar — but not sure what order to do things, or whether the numbers stack up. GreenGauge gives you the building physics basis to make a genuinely informed decision before committing.
Start with the Remote Energy Model — a building physics picture of your property in under 10 minutes.