As Edinburgh’s longest established Worcester Accredited Partner, we have been installing boilers and making homes energy efficient across Edinburgh, Fife, and the Lothians for over 85 years.  T.B. Mackay Energy Services offer interest-free credit and up to a 12-year warranty on Worcester Bosch Boilers. Worcester Bosch is the boilers of choice by T.B. Mackay Energy Service expert heating engineers.

Combi Boilers

A combi (or combination) is both a high-efficiency water heater and a central heating boiler in a single compact unit. Combi boilers heat water directly from the mains when you turn on a tap, so you won't need a hot water storage cylinder or a cold-water storage tank in the roof space.

Greenstar CDi Compact

Greenstar CDi Compact
Our Greenstar CDi Compact combi boiler is suitable for small, medium and large-sized properties with one or two bathrooms.

  • Fitted By Worcester Accredited Partner
  • 10 Year Warranty
  • Good Housekeeping Awarded Range
  • 0% Finance Available
  • WHICH Best Buy status.
8000 Lifestyle

8000 Lifestyle
Our Greenstar CDi Compact combi boiler is suitable for small, medium and large-sized properties with one or two bathrooms.

  • Fitted By Worcester Accredited Partner
  • 12 Year Warranty
  • Good Housekeeping Awarded Range
  • 0% Finance Available
  • WHICH Best Buy status.

Get a Free Quote

Drop us an email with your requirements


Book Your Boiler Estimate

We have tradespeople available for a site visit. Book now


Call Us

If you would like to talk with us, call us on 0131 552 6103


Energy Savings

Another service available to our customers is an inspection and report of your current system and controls where we offer advice on upgrades to optimise efficiency, from the fitting of thermostatic radiator valves to fully optimised electronic controllers to enhance system operation.

Our Accreditations: