Find out what will really work for your home
What to upgrade, what it should cost and who to trust, based on real data from homes like yours.
Free, and we'll never pass your details to a salesperson.
Built on 22 public datasets, including 22.9M homes with an energy certificate. Every figure is dated, sourced and listed on the data page.
Measured, not promised
Performance from homes that have already done the work.
Prices with a source
What installers reported charging, or nothing — never a guess presented as a figure.
Nobody pays to appear
No installer buys a listing here, and nothing is ranked by commission.
Every number here comes from the public record
Five official publishers. No vendor figures, and no estimates dressed up as data.
- EPC RegisterEnergy certificates
- ONSRatings and geography
- DESNZHouseholds and installs
- OfgemThe price cap
- Met OfficeSunshine records
Three steps to a straight answer
No sales call, no guesswork about what your home can take.
Start with your postcode
We look up what is already known about your home: its age, type, construction and current rating.
See what it could reach
A realistic target for your property, based on homes of the same age and type nearby.
Compare who can do it
Certified installers covering your area, with quotes you can weigh up against real prices.
Every home is different. So is every answer.
A 1930s semi with solid walls needs a different plan from a 2005 townhouse. We start from your property, not a generic list of measures.
- What your home could realistically reach, not a best-case figure
- Costs from real quotes, with the grants you qualify for taken off
- The order to do things in, so you don't pay twice
Today
Possible
Illustrative quotes
Every upgrade, explained for your home
Whether it suits your property, what it costs and what you'll save.
Browse every upgrade
Heat pumps
Will one heat your home, and what will it really cost to run?
Read the guide
Boilers
Replacing an old boiler, and whether to move off gas altogether.
Read the guide
Heating controls
Low-cost changes that cut bills in almost any home.
Read the guide
Solar panels
Expected generation and payback for your roof and region.
Read the guide
Home batteries
How much you could store, and save, on your tariff.
Read the guide
EV chargers
Home charging costs, installation and smart tariffs.
Read the guide
Insulation
Loft, cavity and solid wall options for how your home was built.
Read the guide
Windows & doors
When new glazing is worth it, and when your money goes further elsewhere.
Read the guide
Start with your postcode
See what homes like yours have done, what it cost and how it worked out.