Fire Dampers
Air Conditioning and Heating Specialists
Fire Damper Testing and Maintenance Services
Clean Ducts install, maintain, and inspect fire dampers across all building types, delivering BESA-certified reports with photographic evidence to meet safety and compliance requirements.
Fire dampers are essentially fire safety metal curtain devices that fall within your buildings air ventilation ductwork systems in the event of a fire within a building.
Fire dampers stop fire and smoke from spreading through a building by sealing ductwork at fire-rated walls, floors, and zones. They protect life by containing fire within a defined compartment long enough to allow safe evacuation and enable firefighters to control the blaze.
What needs to be checked when testing a Fire Damper?
Operatives will then need to carry out an internal visual inspection of the dampers looking for:
- Damage or obstructions to the curtain
- Internal blades operating and closing fully
- Spring mechanism working
- Channels and side rails clear of any obstructions
- Fusible link in-tact and correct type fitted
- Dirt, dust or contamination levels of the ductwork that could be causing the fire damper to not fully close or operate correctly in the event of a fire
- Drop testing the Fire Damper to ensure correct working order
- Any other faults.
Ensure you are fully fire safety compliant with regular Fire Damper testing and maintenance
Clean Ducts is part of the Gemini AMPM (Asset Management and Planned Maintenance) group of fire safety companies who offer a Fire Damper testing, cleaning and maintenance service, in accordance with BS 9999:2017 so that you know that all your fire dampers are drop tested, cleaned and maintained at least once every year.
If you are the designated fire prevention officer or person responsible for the fire safety within your building and would like your fire dampers tested and maintained with a written report provided to show your compliance then please get in touch.
A fire damper is a safety device installed in ductwork of heating, ventilation, and air conditioning (HVAC) systems to prevent the spread of fire and smoke through ducts in walls, floors, and ceilings. It automatically closes when high heat is detected.
Fire dampers are designed to prevent the spread of fire and smoke through ductwork and ventilation systems. They act as barriers, closing off airflow during a fire to contain the flames and smoke to specific areas.
Fire dampers are typically installed in ventilation ducts that penetrate fire-rated barriers throughout a building, such as walls and floors. Their placement is critical to compartmentalize the building and are required to delay the progression of fire within a building.
Fire dampers can be passive or motorised. Passive dampers rely on gravity and springs to close when exposed to high temperatures causing a fire safety barrier within the ductwork. While motorised dampers use electronic actuators and are often connected to a fire alarm or building automation system (BMS).
Regular inspections and maintenance of fire dampers are essential to ensure they function correctly when needed. This includes checking for obstructions, verifying proper closure, and addressing any issues promptly.
Fire dampers must comply with local building codes and standards. Regular inspections and testing are often required to meet regulatory requirements.
Fire dampers are integrated into the overall fire protection strategy of a building. They work in conjunction with other fire safety measures such as fire doors, sprinkler systems, and smoke detectors.
Having proper functioning fire dampers within your buildings are critical for life safety, as they help limit the spread of fire and smoke, providing occupants with more time to evacuate safely in the event of a fire. It is a legal requirement to have them regularly maintained with full reports and photographic evidence for each fire damper inspected.
Building owners and facility managers should be aware of the specific fire protection requirements for their structures and ensure that fire dampers are installed, maintained, and tested according to relevant regulations
In the UK, fire dampers must be tested and inspected at least annually according to BS 9999:2017. Spring-loaded (mechanical) dampers must also be drop-tested to ensure proper function.
Fire dampers close when temperatures rise due to fire.
Smoke dampers close in response to smoke detection.
Some systems may use combination fire/smoke dampers for dual protection.
A technician will:
Inspect damper access and condition
Perform a drop test (manual or spring-loaded)
Reset the damper
Document and report any issues or failures
Confidence: 100% | Source: BS 9999
Blocked or inaccessible access panels
Damaged blades or fusible links
Dampers painted shut or rusted
Lack of compliance documentation
Yes, it is possible to retrofit fire dampers, but it requires careful planning to ensure compliance with fire compartmentation rules and HVAC design.
A professional fire damper inspection service will check:
Location and quantity of dampers
Compliance with standards (BS 9999)
Testing and maintenance records
For more information or to book an appointment, please contact us using the button below.
Fire Damper inspection service with full written reports and photographic evidence for compliance records for your buildings.
Keeping your building’s fire safety system in top condition is essential for both compliance and occupant protection. Regular fire damper inspections and damper testing are key to ensuring that your fire safety system functions properly in an emergency. Fire dampers act as critical fire barriers within ventilation duct systems, automatically closing to stop the spread of fire and smoke through ductwork.
Current fire safety regulations, including the Fire Safety Order, require that all fire dampers undergo regular fire damper testing by a qualified professional. In particular, spring-operated fire dampers must be tested at least once a year. If left unchecked, damaged dampers can fail, putting lives at risk and compromising fire compartment integrity.
Alongside fire dampers, smoke dampers play a crucial role in smoke control within air conditioning and ventilation systems. Smoke damper inspections and smoke damper testing help ensure they activate correctly in the event of a fire, preventing smoke from spreading through the building.
Routine fire damper maintenance includes visual inspections, drop testing, and repairs for any faulty fire dampers. A professional fire damper service can identify issues early, ensuring all dampers are compliant and fully operational. Without frequent testing, fire protection measures can become ineffective, increasing the risk to occupants and property.
By integrating fire damper surveys, duct cleaning, and fire stopping into your maintenance routine, you can ensure your building’s fire safety system remains fully functional and meets legal requirements. Our expert fire damper testing service helps businesses stay compliant, reducing risks and improving safety.