A family of seven specialist businesses united under one vision — making sustainable climate solutions accessible, efficient, and built to last.
Lime Arnold Group is a multi-brand holding group specialising in renewable energy and climate control solutions for homes and businesses across the UK. We've assembled a portfolio of expert companies that each lead in their field.
From heat pumps and solar panels to HVAC engineering, training, and marketing — our ecosystem covers the full spectrum of the modern energy transition.
Meet Our BrandsEvery brand is built around reducing carbon footprint and energy waste.
Specialist teams with decades of combined field and engineering experience.
Solutions scaled for single homes to large commercial estates.
Investing in the next generation of HVAC and renewable engineers.
Full-service heating solutions including boilers, heat pumps, underfloor heating, and smart heating controls for homes and businesses.
Visit Qualis EnergyExpert air conditioning, commercial refrigeration, chiller systems, and climate control for every property type and size.
Visit ArcticNordResidential solar PV design, supply, and installation — helping homeowners generate their own clean energy and cut electricity bills.
Visit AiR SolarLarge-scale commercial solar installations, ground-mounted arrays, solar carports, and integrated energy storage solutions for enterprise clients.
Visit SOLARFIELDAccredited HVAC training programmes equipping engineers with the skills and certifications needed to work in the green economy.
Specialist marketing agency for HVAC and renewable energy businesses — from brand strategy and lead generation to digital campaigns and web design.
The umbrella agency for air source heat pump (ASHP) and air-to-air (A2A) solutions — connecting customers with fully vetted, certified installation partners nationwide.
Speak with a specialist from the right brand within our group. We assess your property, energy needs, and goals — no jargon, no hard sell.
Our engineers create a bespoke system design — whether that's a solar array, heating upgrade, cooling solution, or a combination of all three.
MCS-certified and fully accredited installation teams carry out the work to the highest standard, on time and with minimal disruption.
We don't disappear after install. Maintenance packages, monitoring, warranty support and aftercare from the team who built your system.
"Qualis Energy installed our heat pump last autumn and our heating bills have dropped by nearly 60%. The team were brilliant from start to finish."
"SOLARFIELD designed and installed our commercial roof array. 180kWp, delivered ahead of schedule. Our energy costs have never been lower."
"The Qualis Greentech Training Academy gave me the F-Gas and heat pump qualifications I needed to transition my career into renewables. Exceptional instructors."
Have a question about Lime Arnold Group or one of our brands? Send us a message and we’ll connect you with the right team.
Unit 10, Brailwood Close,
Bilsthorpe, Nottinghamshire,
NG22 8UG
Mon–Thu: 9:00 AM – 5:00 PM
Fri: 9:00 AM – 1:00 PM