The UK has some of the leakiest homes in Europe - wasting us millions of pounds in energy bills each year.

From April, private landlords in England and Wales won’t be allowed to rent out the coldest homes.

But there’s a loophole. Landlords won't have to improve their properties if that would cost them any money up front (yes, you read that right).

If the government won't close the loophole, tenants could be left in the cold with a £1bn energy bill.

Put in your details and find out how much money your landlord could be saving you.

Not renting from a private landlord? Pop in a friend or family member's postcode instead.

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This tool only works for homes in England and Wales

Wow. If this loophole was closed, your landlord would have to make improvements that could annually save you

Good news, you're lucky enough not to live in one of the very worst homes.

But that doesn't mean it's good enough. If the government was serious about keeping you warm and tackling climate change, they’d require improvements that would annually​save you

You're one of the lucky ones. Your home is actually pretty energy efficient. But this loophole affects hundreds of thousands of private renters - often the most vulnerable.

Sorry, it looks like your home's energy efficiency hasn't been assessed yet.

But this could still affect you - hundreds of thousands of private renters like you could be on the line for a £1bn energy bill over the next five years if this loophole isn't closed.

Share so your friends can find out how much they could be saving.

Make sure this loophole gets closed to keep you warm, cut your bills and cut your carbon.

Close this loophole now to protect the most vulnerable and demand more ambition from the government on warm homes and climate change.

Close this loophole now to protect the most vulnerable from cold homes.

Close this loophole now to protect the most vulnerable from cold homes.

Click here to read about how these numbers were calculated.