Heat pumps

Air source heat pumps.

A system that transfers heat from outside air to water that heats your home via radiators or underfloor heating, and provides hot water for showers, baths and taps.

A system that transfers heat from outside air to water that heats your home via radiators or underfloor heating, and provides hot water for showers, baths and taps.

  • Up to 4× more efficient than gas boilers
  • Eligible for Boiler Upgrade Scheme grants
  • Quiet, low-maintenance outdoor units
  • MCS-certified installs

Why Alliant?

  • • MCS-certified design & install teams
  • • 25-year performance guarantee
  • • Award-winning customer support
  • • Fast nationwide service

Ready when you are

Three easy ways to get started.

Whether you want a tailored quote, a free brochure to share with the team, or a quick callback from one of our renewable engineers — we'll respond within one working day.

Trusted quality professionals

Accredited, certified & insured.

All our installers are highly accredited and hold the following quality assurance and safety certificates.

Industry accreditations including TrustMark, MCS, NICEIC, NAPIT, Gas Safe, Green Deal, PAS 2030, Mitsubishi Electric Partner, Ecodan, HIES, CIWA, Quality Mark Protection, Installation Assurance Authority and Living Wage Employer