Welcome to IES
We specialise in providing comprehensive heating, ventilation and air conditioning as well as HVAC solutions to the commercial and industrial sectors, including to airports, hotels, restaurants, casinos, banks, hospitals, production plants and manufacturing warehouses. IES has been in the HVAC industry since 1945 and are part of the French energy company ENGIE. Under its new ownership, IES is able to offer extensive experience in providing turnkey solutions to clients, offering a single point of contact for supply and installation and maintenance – always on time and always on budget.
Over the years, we have been awarded a number of renowned local projects including: Cape Town International Airport, Oliver Tambo International Airport, Gold Reef City Casino, Gateway Theatre of Shopping, Kusile and Medupi Power Stations, Moses Mabhida Stadium, Victoria and Alfred Marina, Standard Bank Rosebank and various MTN Mini Hub Switches across the country.
We have also been involved in various key international projects.

Procurement
Our business offers a comprehensive engineering equipment selection.
Our cost-conscious procurement departments in Durban, Johannesburg and Cape Town only source branded products which are tested and proven in quality.

Installations
We have experienced and highly skilled installation teams in the fields of Piping, Ducting, Installation, Electrical and BMS Controls.

Maintenance
We offer Preventative Maintenance and Breakdown and Repair work through our sister company Ampair (Pty) Ltd., who have been in the industry for over 31 years.

Commissioning
Our trained commissioning teams are capable of the complete testing and commissioning of air-conditioned systems; including air and water balancing, controls and electrical, in compliance with local and international standards.
All commissioning is compliant with CIBCE and Greenbuilding.

Construction Management
We have experienced and highly skilled installation teams in the fields of Piping, Ducting, Installation, Electrical and BMS Controls.

Ducting Manufacturing
We are one of the only HVAC providers that have in-house duct manufacturing facilities in Durban, Johannesburg and Cape Town.
We specialise in rectangular, circular and board (pre-insulated) ducting, and are SMACNA and SABS approved.
Our Services
As HVAC specialists, our services range from project management and installations, to commissioning and planned preventative maintenance.
Find out more about Our Services here
Procurement
Our business offers a comprehensive engineering equipment selection.
Our cost-conscious procurement departments in Durban, Johannesburg and Cape Town only source branded products which are tested and proven in quality.

Installations
We have experienced and highly skilled installation teams in the fields of Piping, Ducting, Installation, Electrical and BMS Controls.

Maintenance
We offer Preventative Maintenance and Breakdown and Repair work through our sister company Ampair (Pty) Ltd., who have been in the industry for over 31 years.

Commissioning
Our trained commissioning teams are capable of the complete testing and commissioning of air-conditioned systems; including air and water balancing, controls and electrical, in compliance with local and international standards.
All commissioning is compliant with CIBCE and Greenbuilding.

Construction Management
We have experienced and highly skilled installation teams in the fields of Piping, Ducting, Installation, Electrical and BMS Controls.

Ducting Manufacturing
We are one of the only HVAC providers that have in-house duct manufacturing facilities in Durban, Johannesburg and Cape Town.
We specialise in rectangular, circular and board (pre-insulated) ducting, and are SMACNA and SABS approved.



Latest Projects
We are the preferred service provider for many HVAC installations and have worked on some key projects.
View our latest worksKusile Power Station

ABSA Sunward Park

The Leonardo

FISH Five Star Hotel Ezulwini Swaziland

Medupi Power Station Limpopo

Givaudan South Africa

Jakaranda Shopping Centre

Illovo Point

Shell Garage Kroondal East & West Bound

Liberty Midlands Mall

East Rand Mall

72 Grayston Drive

90 Rivonia Road

Mall of Africa

Horizon Maputo Mozambique
- 4 off 1400 mw water cooled chillers with hot water heat recovery
- 8 off closed circuit cooling towers 49 off air handling units
- 451 off fan coil units
- 25 off primary, secondary and hot water pumps
- VRV and DX systems serving Data and Server Rooms
- Cooling Towers: BAC – 8 off
- Pumps: SPP Pumps
- Air handling units: Voltas
- Heat Exchangers: Voltas
- Fan Coil Units: Skyshot
- BMS: Satchtec
- Electrical Panels: Hayesons/Voltas
- Chillers: Voltas
- VRV System: Daikin

MTN Doornfontein 2015

Mitchells Plain Hospital

MTN Remote Mini Hub Switches
- Tier 4 Chilled water and DX systems
- Internal CRAC units
- Viking/Munters Humidifiers
- LG VRV Systems for Admin Areas

Standard Bank Rosebank
- Viking Fresh Air Units
- Viking Chilled Water Air Handling Units
- Clivet Chillers
- ACCIima Air Handling Units-111 off

Coastlands Hotel Umhlanga Ridge

Forensic Laboratory Cape Town

Unilever Riverhorse

OR Tambo International Airport A1 A2 Terminal
- 48 Viking Chilled Water Air Handling Units
- Smoke Extraction system
- 60 Split units for data Rooms

Cape Town International Airport

Moses Mabhida Stadium

Green Point Stadium

Our Trusted Suppliers
We have built long-standing relationships with many of our suppliers and are therefore able to meet short lead times. Some of our suppliers include:
One company, one vision
Since the acquisition of Thermaire and Ampair, ten months ago, ENGIE has undertaken a reorganisation to ensure that it meets the expectations of its clients in an efficient, seamless and timely manner. The organogram below showcases the optimised structure and reporting lines. Gerhard Dirker has been appointed as Branch Manager – Projects in Gauteng and […]
Read MoreFrench company ENGIE acquires Thermaire Investments
French company ENGIE acquires Thermaire Investments and sister company Ampair in a major step in developing its energy services in Southern Africa. Thermaire Investments (Pty) Ltd and Ampair (Pty) Ltd announces that an agreement was reached with ENGIE to sell 100% of their respective shares. Jointly, the acquired companies will form the largest South African […]
Read MoreIES completes work at 72 Grayston
72 Grayston was recently re-built into a 5500sqm commercial office block. Situated in well-known business hub, central Sandton, Johannesburg, the building underwent its transformation in order for it to complement its architecturally chic and modern surroundings. It is located up the road from the renowned Nelson Mandela Square, Sandton City and Sandton Convention Centre. IES […]
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