Extract Systems

Grease extract system cleaning

Our specialist teams provide comprehensive cleaning across the grease extract ventilation system, including canopies, filters, ductwork, fans and associated components. All work is completed and documented in accordance with TR19® Grease – the industry guidance for fire risk management of grease accumulation within kitchen extraction systems.

What we do

Pre-clean assessment and compliance audit

• Comprehensive condition survey and risk evaluation
• Identification of grease loading and system requirements
• Detailed method statement and site-specific risk assessment

Complete grease extraction system cleaning

• Cleaning of canopies, grease filters, ductwork, fan units, sound attenuators and vertical risers
• Cleaning of volume control dampers, turning vanes, airflow sensors and other accessible ancillary components
• Cleaning of electrostatic precipitators (ESPs), where applicable

Access solutions

• Supply and installation of fire-rated access doors, independently type tested to BSRIA standards and compliant with BESA DW144 and DW172 specifications for sheet metal ductwork and kitchen ventilation systems
• Supply and installation of builders’ hatches where required to suspended ceiling surfaces

Filter and component replacement

• Replacement grease, panel, bag and carbon filters
• Minor remedial works associated with access and system condition

How we work

Our technicians use specialist mechanical cleaning equipment, brushes and appropriate cleaning products selected for the system and site conditions. Work is planned around site-specific risk assessments and method statements, with access requirements identified before cleaning begins.

Following the clean, clients receive evidence of the work completed. Where TR19® Grease applies, this includes the reporting and verification information required to demonstrate the condition of the system at the time of service.

We ensure strict compliance with health and safety regulations throughout, including Control of Substances Hazardous to Health (COSHH) and Personal Protective Equipment (PPE) requirements.

Our Accreditations

HSL Compliance is:

• BESA member (Building Engineering Services Association) – demonstrating our commitment to industry best practice
• VHR scheme approved (Vent Hygiene Register) – independently verified and accredited for extraction system cleaning
• TR19® Grease compliant – all work completed to industry guidance standards

These accreditations ensure your cleaning is delivered to the highest professional and safety standards.

How often should an extract system be cleaned?

Cleaning frequency should be based on risk and system use rather than a single fixed interval. Factors include operating hours, cooking methods, volume of catering, grease loading and the condition of the system.

WFTT measurements and visual assessments help establish an appropriate ongoing cleaning schedule tailored to your operation. Once a system achieves TR19® Grease compliance, cleaning intervals can be optimized based on documented deposit build-up rates, reducing unnecessary downtime while maintaining full compliance.