We’re the Calista Group – renewable energy specialists offering insulation, energy microgeneration and heating solutions.

Our aim is to help homes and businesses across the South West and South Wales make the most of their energy. We’re here to help you reduce your bills and make some money, too.

Here at Calista we are passionate about what we do. One of our first projects has been at our own offices, where we’ve installed a CO2 air source heat pump that provides heat through radiators and ducted warm air. We’ve also installed a biomass air handling unit providing warmth to our workshop and warehouse, which will reduce our energy costs and provide an income from the Renewable Heat Incentive (RHI).

Our motto is ‘Looking after tomorrow… today’. That’s because we want to protect the planet. But we also want to protect your pocket. Simply so you can feel financially confident about the future.

There are some things we can all be sure of for the future: The sun will shine, the tides will turn, the wind will blow… and energy prices will rise.  We are accredited with PAS2030 to install the following measures:

• Biomass boilers
• Cavity wall insulation
• External wall insulation systems
• Flue gas heat recovery devices
• Gas-fired condensing boilers
• Ground source heat pumps
• Heating controls (for wet central heating system and warm air system)
• Internal wall insulation (of external walls) systems
• Loft or rafter insulation (including loft hatch insulation)
• Oil-fired condensing boilers
• Photovoltaics
• Pipe-work insulation
• Air source heat pumps