Since its foundation in 1999, Thelcon has continually expanded its activities, while also enriched its specialization in building and energy control.

Energy Audits

Control Systems


Software Development

γραφήματα - δοκιμή 1


Energy Projects and Audits

Energy projects and audits for large buildings and industries, with a specialization in E/M systems.

Emphasis on energy conservation, with minimum environmental impact and maximum efficiency.

Energy Reporting & Audits

Energy recording and audits in buildings & industries.                                      Techno-economic proposals for systems upgrades and continual evaluation.

Air conditioning - Heating

Energy audits for heating & cooling systems in buildings, and upgrading using latest available technologies for optimal energy efficiency.


Lighting design for work spaces, in accordance with international standards.
Emphasis on aesthetic outcome and visual comfort for building users.

Building Shell - Bioclimatic Design

Upgrading existing building shells and comprehensive bioclimatic building designs.

Renewable energy

Installation studies for renewable energy systems. Carrying out their linkage with building(s) or power network.


Control Systems (BEMS)

Installation of BEMS (Building Energy Management System) in buildings, industries and store networks.

Emphasis on creating comfortable conditions for users and energy efficient buildings, utilizing automated operations.


Installation analysis for all control points in buildings. Integration of third-party systems via BACnet or ModBus communication protocols.

BEMS Installation

Installation of new BEMS in buildings or upgrading of existing systems. Programming and commissioning for optimal operation.

Evaluation - Maintenance

Constant monitoring and evaluation of installed systems. Maintenance for proper operation and controlled systems longevity.

Upgrade proposals

Upgrade proposals for BEMS, using additional software for all-around building monitoring and control.