Extherm was established in 1986 and operated as a small firm specializing in the area of duct construction.

In 1989, Extherm was transfered to private facilities in the end of Maiandrou Str. in Evosmos, Thessaloniki. Today, the company employs 14 technicians.

Through the years, we have designed and implemented HVAC systems in:

  • Restaurants, Cafe and similar facilities
  • Retail shops
  • Office Buildings
  • Residencies
  • Hotels
  • Food Industries
  • Tabacco processing plants
  • Hospitals

Our comprehensive know-how and extensive experience of our staff guarantee the high quality of our projects

Photograph of our facilities

Our clients

  • Frigostahl S.A.
  • Klimamichaniki S.A.
  • VIT S.A.
  • EKTE A.T.E.B.E.
  • Domotechniki S.A.
  • GMP Construction S.A.
  • Athens Brewery S.A.
  • Passias S.A.
  • Patisserie "Miltos" S.A.
  • Euromedica S.A.
  • Egnatia S.A.
  • METAM S.A.
  • Douros Group of Companies S.A.
  • A. Valatsos - K. Troullos Co.
  • Ergosxima E.E.
  • Ideal Klima P.C.
  • Delphis - D. Daskalopoulos S.A.


Τhe enterprise G. Pontikakis & Co, with headquarters in the Region of Central Macedonia, was co-financed by the European Regional Development Fund (ERDF) of the European Union for the implementation of its project under the Action “Technology Vouchers for small and micro enterprises of the Region of Central Macedonia".

The Action is aimed at empowering small and micro enterprises, through the purchase of innovative ICT applications, in order to strengthen the ICT implementation strand, as key support technology, to achieve improvements in productivity terms and promotional activities.