Healthcare
NHS trusts, private hospitals and clinical environments where ventilation hygiene supports patient safety, infection control and HTM compliance.
Compliance-Led Ventilation Hygiene · Since 2013
The UK's Compliance Partner for Ventilation Hygiene & Risk Reduction
Inspection, cleaning, reporting and access programmes that protect facilities managers, estates teams and responsible persons against TR19, HTM and fire safety risk — across healthcare, commercial, industrial and marine environments.
TR19 CompliantBESA AlignedNational Coverage
Sectors
Industries We Support
From hospitals and manufacturing plants to vessels and commercial portfolios, we deliver ventilation hygiene programmes tailored to the standards of each environment.
Industrial & Manufacturing
Process extraction, LEV systems and production facility ductwork maintained to protect throughput, COSHH compliance and workforce safety.
Marine & Offshore
Galley extract, accommodation ventilation and engine room systems serviced in port and drydock across passenger and commercial fleets.
Commercial Estates
Offices, retail, hospitality and mixed-use portfolios supported with planned ventilation hygiene aligned to insurer and FM standards.
Recent Projects
Live Sites. Minimal Disruption.
Recent works delivered around occupied buildings, live wards and active production — planned out of hours where required, with full documentation on completion.
Healthcare
Ward 25 Hospital Ventilation Works
Clinical area ventilation inspection and cleaning, delivered around live hospital operations with full HTM-aligned documentation.
Marine
Vessel Ductwork Cleaning, Las Palmas
Team mobilised to Gran Canaria to clean onboard HVAC systems in drydock. Works included laundry ductwork deep cleaning & galley system grease removal as part of pre-planned maintenance.
Industrial
Blocked LEV Ductwork Recovery
Called in to a manufacturing facility due to extraction failure causing production delays. LEV ductwork inspected, cleared and returned to compliant operation.
Access Works
Pre-Commission Access Panel Installation
Following major refurbishment and before handover, supplied and fitted access panels across a large ductwork system to bring it in line with TR19 access guidance.
Outcomes
Pre & Post Clean Documentation
Internal photography from Deduct Ltd inspections and works. Documented evidence forms part of every TR19 compliance report we issue — protecting your insurance position and audit trail.
Before
AfterLaundry Extraction Duct
Before
AfterManufacturing Grease Extract Ductwork
Before
AfterBuild-up Within Neglected Supply Duct
Why Deduct
Protecting Buildings. Supporting Compliance.
Ventilation hygiene isn’t just about cleanliness—it’s about reducing risk, protecting occupants and demonstrating compliance. Deduct Ltd delivers inspection, cleaning, reporting and compliance programmes that help organisations stay audit ready across the UK.
- Established 2013
- Over a decade delivering ventilation hygiene programmes to UK estates and critical operations.
- National Coverage
- Directly employed engineers operating across England, Scotland and Wales.
- Standards Aligned
- Works delivered to BESA TR19, DW/172 and relevant HTM guidance for your insurer and auditor.
- Documented Evidence
- Pre and post-clean reporting, photographic evidence and access records on every job.
- Access Capability
- MEWP, cherry picker and confined space capability for the most difficult systems.
- Critical Environments
- Live working experience in healthcare, marine, manufacturing and process facilities.
Frequently Asked
Compliance & Ventilation Hygiene FAQs
Straight answers for facilities managers, estates leads and responsible persons.
What is TR19 ventilation hygiene compliance?
TR19 is the BESA standard governing the inspection, cleaning and verification of ventilation systems. It defines how ductwork is assessed, cleaned and documented to meet insurance, fire safety and indoor air quality obligations.
How often should ductwork be cleaned?
Frequency is determined by system classification, usage and risk. Kitchen extract systems typically require cleaning every 3–12 months; healthcare and clean environments follow HTM guidance; commercial supply and extract systems are usually inspected annually.
Do you provide compliance documentation?
Yes. Every programme includes pre and post-clean photographic evidence, access records and a compliance report aligned to BESA TR19, DW/172 and relevant HTM guidance — ready for your insurer, auditor or FM records.
Do you cover the whole UK?
Yes. Directly employed engineers operate across England, Scotland and Wales, with the capability to mobilise to marine and offshore assets internationally.
Is fire damper testing a legal requirement?
Under BS 9999 and the Regulatory Reform (Fire Safety) Order 2005, fire dampers must be tested at least annually by a competent person, with documented evidence retained by the responsible person.
Get in touch
Request Your Free Site Survey
Tell us about your premises and we'll arrange a free, no-obligation ventilation hygiene site survey anywhere in the UK. Our team will respond within one working day.
- Free, no-obligation survey
- Response within one working day
- Nationwide coverage
Complete the form below and we'll be in touch within one working day.