Robert Walkam gave up an office job in 2008 to retrain as a plumber and start his own company, Nene Plumbing. For Walkam, joining t10:10 affects both his business and home life.
Walkam's Northampton-based business is run from home, so he's planning to revisit his energy bills and then work out a plan to cut them by 10%. "I signed up because saving energy and climate change is something I believed in," says Walkam. "I want to promote the idea that people should use energy-efficient appliances and have their homes properly insulated. A lot of focus is on new-build homes but we have to focus on retrofitting the millions of existing homes too."
Cutting energy use at his business premises will be tricky, Walkam worries, because he's already put in 280mm loft insulation (more than the government's minimum recommendation), fitted double-glazed windows, draught-proofing and low-energy bulbs. "It's going to be quite a challenge for me," he says.
After visiting trade shows, Walkham has also been inspired to expand his business into installing renewable energy as well as plumbing. He hopes to eventually fit air source heat pumps - which extract warmth from outdoor air and transfer it indoors for heating - and solar hot water systems in customers' homes.
"I'm just about to move home, so I'll be looking to increase the energy efficiency there - it has rubbish insulation and a really old boiler, so there's room for improvement," says Walkham.
Like many tradesmen, Walkham does a lot of driving - sometimes 400-500 miles per month, visiting homes to view a job, driving home and then driving back again to undertake the job. "The miles will be the hardest thing," he says.