Bio: Jonathan Birch, founder of Verde Heat LTD, a gas engineer specialising in boiler installations in Oldham & Saddleworth

Bio: Heating engineer based in Edinburgh.

Bio: Heating & plumbing co. based in Essex, Gas Safe engineers with 20+ yrs experience each. A team with strong work ethics.

Bio: Scaling a UK compliance-focused PAT testing & electrical safety brand. Systems, risk and commercial protection.