The Circle

Not just another installer loyalty programme. 

Join The Circle

Installers gain exclusive benefits with rewards, training and accreditation and exclusive warranties. Sign up today.

Trusted by installers across the UK

See what other installers have said about our loyalty programme
ThermoSphere The Circle is trusted by installers on its google reviews
ThermoSphere The circle is trusted by installers for its trust pilot reviews

Our 3 Guarantees

Availability guarantee

  • Available next-day from a reseller <20mins away.
  • Fastest quote turnaround time.
  • Online budget builder.

Zero callback guarantee

  • On-site commissioning support.
  • Register the install and we’ll handle everything.
  • Exclusive parts and labour guarantee.

24/7 support guarantee

  • Easy WhatsApp support.
  • Certification for installers.
  • Remote technical support via T-MO app.