The Guardian's Green your home bloggers open their doors

Andy Phipps' home in Surrey, before its eco-extension. Despite the house meeting old building regulations, the rooms always felt cold - a situation that led Andy to embark on a green refurbishment Photograph: Andy Phipps/Public Domain

Andy Phipps' daughter Summer in front of their woodburner, which Andy hopes to link to the central heating hot water tank Photograph: Andy Phipps/Public Domain

The bungalow of Ann Link, who moved from London to Lewes in search of a home with "calm beauty, as much as I wanted super-insulation and renewable energy" Photograph: Ann Link/Public Domain

Work on Ann Link's home is just beginning - one of the first arrivals is the frame for the solar hot water tubes Photograph: Ann Link/Public Domain

The living room of Ann Link's 1957 bungalow as it was two years ago. She's now temporarily moved out while work commences on her eco renovation Photograph: Ann Link/Public Domain

The Winchester home of Rob Veck, a former project manager who retired to give his house a low carbon overhaul Photograph: Rob Veck/Public Domain

A rear view of Rob Veck's home, which he hopes to turn into a template for others considering an 'eco retrofit' Photograph: Rob Veck/Public Domain

Tom Lipinski's top floor Victorian flat in west London. Tom is hoping to build an extension that's so green it'll far exceed building regulations Photograph: Tom Lipinski/Public Domain

Alok Jha's Victorian terrace in North London, which is about to undergo an eco makeover Photograph: Alok Jha

While Alok Jha's north London home has been recently renovated, its green credentials still need upgrading. Follow his progress in our new series, Green your home Photograph: Alok Jha