FREQUENTLY ASKED QUESTIONS 

Yes — modern air source heat pumps work efficiently in cold UK winters. They extract heat from the outside air even at temperatures as low as -15°C and can comfortably heat a well-designed home all year round.

Most UK homeowners save £600–£1,000+ per year with solar PV depending on roof size, energy use and export tariff. Adding battery storage can increase savings further.

We cover Berkshire, Reading, Oxfordshire, Hampshire, Surrey and the South of England. If you're nearby, we can almost certainly help.

Most domestic heat pump installations cost £8,000–£14,000, but the Boiler Upgrade Scheme (BUS) provides a £7,500 government grant, reducing the cost for most homeowners.

Solar PV installations usually take 1 day, batteries half a day, and heat pumps 2–4 days depending on complexity.

You don’t need a battery, but it significantly improves your system’s efficiency and savings. Batteries let you store excess solar power to use at night, reduce grid reliance and protect against rising energy prices.

Yes — Thames Valley Renewables are fully MCS certified, RECC registered and TrustMark approved, meaning all installations meet the highest industry standards and qualify for all available grants.