Energy advice

Energy saving advice.

From loft and room-in-roof insulation to smart heating controls, first-time central heating and electric storage heaters, we'll help you find the most cost-effective improvements for your property.

From loft and room-in-roof insulation to smart heating controls, first-time central heating and electric storage heaters, we'll help you find the most cost-effective improvements for your property.

  • Loft, flat-roof and internal wall insulation
  • Room-in-roof insulation systems
  • Smart heating controls and storage heaters
  • Grant eligibility checks and applications

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