Commercial Duct Cleaning FAQs
Find answers to the most common questions about commercial duct cleaning, kitchen extract cleaning, ventilation hygiene, fire damper testing and TR19 compliance. Our experts have been helping businesses stay safe and compliant since 1991.
Frequently asked questions
Ferncroft Duct Cleaning provides commercial duct cleaning, kitchen extract cleaning, fire damper testing and ventilation hygiene services across the UK.
We regularly work throughout London, including Soho, Mayfair, Chelsea, Camden, Covent Garden and Knightsbridge, as well as Surrey, Birmingham, Manchester and many other locations nationwide.
Yes. We understand that many businesses cannot afford disruption during normal operating hours.
Our teams regularly work evenings, overnight and weekends, allowing duct cleaning to be completed with minimal impact on your day-to-day operations.
Yes. We clean all types of ductwork, including external risers, rooftop systems and complex multi-storey ventilation systems.
Our engineers are trained to work safely at height and in confined spaces where required.
Yes. Access panels are essential for carrying out regular inspection and cleaning. If your system doesn’t provide adequate access, we can advise on the best locations and professionally install additional access panels to support future maintenance.
If you’re unsure when your system was last cleaned or whether it meets TR19 Grease guidance, we can carry out a site survey and assess its condition.
We’ll identify any issues, explain what work is required and provide a clear quotation if cleaning is recommended.
Yes. Following completion of your kitchen extract cleaning, we’ll provide the appropriate certification and reporting to demonstrate the standard of cleaning achieved.
This documentation can help support fire risk assessments, insurance requirements and compliance records.
Cleaning frequency depends on how heavily the kitchen is used. TR19 Grease recommends different cleaning intervals based on the number of operational hours each day. During your survey, we’ll recommend a suitable cleaning schedule based on your kitchen’s usage.
Ventilation systems should be inspected and cleaned according to their condition, usage and the relevant industry guidance.
Regular duct cleaning helps maintain good indoor air quality, improve system efficiency and support compliance. We can recommend an appropriate maintenance schedule following a site survey.
TR19 is the industry-recognised guidance for cleaning, testing and maintaining ventilation ductwork. It helps businesses reduce fire risks, improve ventilation hygiene and demonstrate compliance with fire safety and insurance requirements.
Employers have a legal responsibility to maintain safe working environments. Depending on the type of ventilation system, regular cleaning may be required to comply with fire safety legislation, workplace regulations, insurance requirements and recognised industry guidance such as TR19 Grease and BS EN 15780.
Yes. Regular duct cleaning helps improve air quality, reduce fire risks, improve ventilation system efficiency and support compliance with industry guidance such as TR19 Grease and BS EN 15780.
It can also help extend the life of your ventilation system and reduce costly repairs caused by grease, dust and debris build-up.
Ferncroft provides a range of specialist ventilation hygiene services, including:
- Commercial duct cleaning
- Kitchen extract cleaning
- Kitchen canopy cleaning
- Fire damper testing
- Ventilation hygiene inspections
- Access panel installation
- Ductwork swab testing
- Certificates and compliance reporting
Common signs include visible dust or grease build-up, poor airflow, unpleasant odours, increased energy consumption or overdue maintenance records. If you’re unsure, we can inspect your system and advise whether cleaning is required.
The time required depends on the size and complexity of your ventilation system. Smaller systems may take only a few hours, while larger commercial kitchens or multi-site buildings can take longer. We’ll always provide an estimated timescale before work begins.
Not usually. We work around your operating hours wherever possible and can schedule cleaning outside of normal business hours to minimise disruption.
We recommend using a specialist contractor. Professional cleaning helps ensure grease deposits are fully removed, appropriate access is maintained and the correct certification is issued. Attempting to clean a commercial extraction system yourself could leave hidden grease deposits and may affect insurance requirements.
Yes. Our experienced engineers clean systems of all sizes and layouts, including high-level ductwork, confined spaces and complex extraction systems. If additional access is required, we can also install access panels to facilitate future inspections and cleaning.
We work across a wide range of sectors, including:
- Restaurants and commercial kitchens
- Hotels
- Schools, colleges and universities
- Hospitals and healthcare facilities
- Care homes
- Commercial property
- Facilities management
- Food production
- Shopping centres
- Manufacturing and industrial facilities
You’ll receive detailed reports and certification outlining the work carried out. This documentation provides a clear audit trail and can support compliance, insurance requirements, fire risk assessments and planned maintenance records.
Ferncroft Duct Cleaning is a family-run business that has specialised in commercial ventilation hygiene since 1991. Over the years, we’ve built a reputation for delivering reliable, high-quality duct cleaning services for businesses across a wide range of sectors, from restaurants and schools to hospitals, commercial property and facilities management.
Our experienced engineers understand the latest industry guidance and work to recognised standards, providing honest advice, thorough cleaning and clear reporting after every job.