In the UK, various commercial premises would require duct and canopy cleaning to maintain air quality, ensuring compliance with health and safety regulations. These include:

1. Office Buildings: Regular duct cleaning in offices is essential for maintaining a healthy and productive work environment.
2. Retail Spaces: Including shopping malls and individual shops, where high foot traffic can lead to quicker accumulation of dust and debris in ducts.
3. Restaurants and Pubs: These venues often have kitchen exhaust systems that require regular cleaning to prevent fire hazards and maintain hygiene.
4. Healthcare Facilities: Hospitals, clinics, and care homes need exceptionally clean air to protect the health of patients, particularly those with respiratory conditions.
5. Schools and Universities: Educational institutions require clean air for the well-being and optimal cognitive function of students and staff.
6. Hotels and Hospitality Venues: Ensuring guest comfort and meeting health standards is crucial in these businesses.
7. Manufacturing and Industrial Facilities: These premises often deal with dust and particulates that can clog ducts and degrade air quality.
8. Gyms and Leisure Centres: High levels of activity and moisture in these venues can lead to mould and bacteria growth in ducts.
9. Public Transport Hubs: Airports, train stations, and bus stations often have extensive ductwork that needs regular cleaning.
10. Government and Public Buildings: Including libraries, museums, and administrative buildings, where the maintenance of air quality is a priority for public safety and preservation of materials.

These premises must adhere to specific regulations and guidelines for indoor air quality and fire safety, making professional kitchen duct and canopy cleaning a necessary maintenance aspect.