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Smoke and heat ventilation systems

Smoke and heat extraction systems protect people and property and quickly dissipate smoke and heat. Escape and rescue routes remain smoke-free, the building fabric remains stable and the fire brigade can work more efficiently.

Smoke and heat vents are often required

Smoke vents and smoke and heat ventilation systems are required by countries’ building regulations, fire safety and prevention designs, insurance companies and building permits. Smoke vents are installed in stairwells.

Smoke and heat ventilation systems are required in buildings that call for a low-smoke layer if there is a fire. These include industrial buildings with production or storage facilities. They prevent hazardous gases from accumulating, rooms from becoming too hot and fires from spreading. Smoke and heat ventilation systems help people evacuate. These systems also assist in firefighting and rescue work.

From consulting to maintenance: CWS offers an all-round service for your system.

All-round service for your system

Protecting people

Smoke and heat ventilation systems ensure that emergency escape and rescue routes are usable by quickly dissipating smoke and heat.

Minimal maintenance

We provide automatic reminders for the yearly required maintenance.


We provide expert advice and, when necessary, call in fire safety and prevention professionals.

Comprehensive service

With CWS, you have access to consultations, planning, installation, maintenance and repair all from the same source.

Selection of smoke extraction systems

Interested in a SHEV system?

The CWS experts will advise you without obligation.

Selection of the smoke extraction system

The choice of a SHEVS system depends on the area of the roof, windows and facades. For specific determination, the installer uses geometric and aerodynamic parameters, the room height and the necessary low-smoke layer. In addition, several influencing variables are taken into account in the calculation so that the SHEVS system optimally fulfills its purpose.

The specialist planners at CWS Fire Safety will support you with their expertise in planning the optimal smoke ventilation system. Request a quote now.

RWA-Anlage von CWS - Ihr Partner für Rauchabzugsanlagen

Installation and approval of smoke vents

CWS installs smoke and heat extraction systems with precisely fitting exhaust air openings. We install the control unit, actuator, opening units, wiring system and safety power supply in your building. We also provide support in combining the SHEV system with other fire protection equipment such as fire alarm or sprinkler systems.

The CWS fire protection experts provide you with everything from a single source and prepare your smoke ventilation system for successful expert acceptance.

Is maintenance due on your smoke and heat extraction system?

Maintenance of smoke extractors

After successful approval, we coordinate regular maintenance and testing. SHEV systems must be maintained once a year in accordance with DIN 18232 and VdS/CEA Guideline 4020. We recommend shorter intervals in dust-laden operating facilities.

Testing in accordance with TPrüfVO by a recognized testing expert is mandatory for smoke and heat extraction systems and takes place every 3 - 6 years, depending on the federal state. In the case of smoke extraction systems for stairwells, this is generally not necessary unless it is directly required. To ensure proper operation, we check releases, controls, openings, power supply lines and accessories for proper functioning and operational readiness. You will immediately receive the professional documentation digitally.

RWA-Anlage Wartung durch einen CWS Servicetechniker Brandschutz

Fire safety and prevention solutions from CWS

CWS Solution Fire Safety Planung Beratung Dokumentation

Consultation, planning and documentation

We are also happy to advise you on fire safety and prevention designs, emergency evacuation plans and official documentation for them.

CWS Solution Fire Safety Installation Abnahme

Installation and approval

More about how a fire safety and prevention system is implemented and prepared for final approval.

CWS Solution Fire Safety Wartung Instandhaltung

Maintenance and repair

We inspect fire extinguishers, equipment and so on for proper functionality and fix any problems.

CWS Solution Fire Safety Brandschutz Schulung

Fire safety and prevention training

We make sure your employees are well prepared in the event of an emergency.

CWS Benefit Fire Safety external View

Fire protection engineer

Our professional officer can identify and assess risks in fire protection and make recommendations to you.

Maintenance of your SHEV system is due?

Our experts service SHEV systems from various manufacturers.

Cooperation with various manufacturers

We distribute products from various manufacturers such as Aumüller, Börner, BTR, D+H Mechatronic, ESSMANN, Eternit, GEZE, Greschalux, Jet, Lamilux, SCHÜCO, Simon, STG-BEIKIRCH and VELUX.

Do you have questions about smoke and heat extraction systems?

*** We are currently only active in Germany and Netherlands! ***


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