Supply & Extract
Ventilation Cleaning
& AHU Servicing
Supply and extract ductwork cleaning and AHU hygiene works for commercial premises across Yorkshire. We agree access, cleaning scope and verification requirements before work starts. Certification and report issued upon completion of works and receipt of payment.
Planning Around Your Premises
Your building type, system use and access arrangements influence the cleaning scope. We agree the documentation needed for your site records before work starts.
Care Homes & Healthcare
Occupied care premises need careful planning around residents, infection-control arrangements and safe access. We agree ventilation hygiene scope with the site team; healthcare guidance is assessed for the particular setting, not assumed to apply identically everywhere.
Schools & Colleges
Cleaning can be planned around school access, safeguarding arrangements and agreed working windows. Inspection and system condition help determine the scope and timing of supply and extract cleaning.
Offices & Commercial
Supply and extract systems can accumulate dust in ductwork, grilles and AHUs. We scope the accessible runs, document cleaning and flag access or condition issues for the building manager.
Hotels & Hospitality
Multi-zone systems and occupied rooms need coordinated access. We separate general ventilation hygiene to TR19 Air from grease-contaminated kitchen extract work to TR19 Grease.
NHS & Private Hospitals
Healthcare ventilation requires site-specific review of system classification, maintenance records and applicable technical guidance. We agree the hygiene scope and access requirements with the responsible site team before quoting.
Facilities Management
We can scope supply and extract ventilation hygiene packages with facilities managers and principal contractors, including asset references, access requirements and clearly documented reporting deliverables.
Our TR19 Air Process
Every job follows the same structured process to ensure full TR19 Air 2026 compliance. You receive a complete documentation package at the end of each visit.
Site Survey & Assessment
We assess your system type, access points and ductwork layout. We take pre-clean dust deposit readings as required by TR19 Air 2026.
AHU Servicing
AHU hygiene works can include housing, fans, coils and drain pans where safe access permits. Filter condition, replacement requirements and any specialist maintenance are identified in the agreed scope.
Supply & Extract Clean
Mechanical agitation and extraction of accessible ductwork within the agreed scope. Access restrictions and sections that cannot be inspected or cleaned are recorded clearly.
Post-Work Certification
Post-work verification records include agreed measurements, photographic evidence, engineer sign-off and any limitations. Certification and report issued upon completion of works and receipt of payment.
Everything in One Visit
The scope, access arrangements and any phased visits are agreed before work starts. Reports identify the areas completed and any limitations.
Pre-Clean Dust Deposit Assessment
Measured in mg/m² to TR19 Air 2026 methodology. Forms the baseline for your compliance report.
Full AHU Service
Coil cleaning, drain pan flush, fan blade clean, filter inspection and replacement (if required), housing wipe-down.
Supply & Extract Ductwork Clean
Mechanical agitation and high-powered extraction throughout all accessible ductwork runs.
Camera Inspection & Evidence
Camera inspection is used where practical access permits. Uninspected or uncleaned sections are identified rather than presented as completed.
TR19 Air PWVR Certificate
Post-work verification reporting records the agreed scope, cleaning evidence, findings and any outstanding access limitations.
Asset Labels Fitted
Professionally printed compliance labels fitted to all cleaned assets, showing date of clean and next due date.
Common Questions
What is TR19 Air and why does it matter?
TR19 Air 2026 is BESA guidance for ventilation hygiene in general supply and extract systems. It supports inspection, cleanliness assessment, cleaning and verification. Applicable legal, contractual and insurance requirements depend on your site; cleaning alone is not a blanket guarantee of compliance.
How often does ventilation need to be cleaned?
There is no single annual cleaning interval for every commercial ventilation system. Inspection findings, system use, contamination, risk and applicable maintenance requirements inform the cleaning programme. We assess the evidence and recommend a site-specific scope.
How long does a typical job take?
A single AHU with associated ductwork typically takes half a day. Larger multi-zone systems may require a full day or phased visits. We'll provide a clear scope and timeline in your quote.
Do you work out of hours to minimise disruption?
Yes — we regularly carry out ventilation cleaning during evenings and weekends for occupied commercial buildings, schools and care homes. Just let us know your requirements when you request a quote.
What qualifications do your engineers hold?
Our lead engineer holds BESA AHO3 (Air Hygiene Operative) and AHT3 (Air Hygiene Technician) qualifications. These are individual qualifications, not a claim of BESA company membership or VHR registration.
What is the difference between TR19 Air and TR19 Grease?
TR19 Grease applies to kitchen extract and canopy systems and focuses on grease accumulation — a fire safety standard. TR19 Air 2026 applies to general supply and extract ventilation systems (including AHUs) and focuses on dust and microbial contamination — a health and compliance standard. Both may be required depending on your premises type.
Plan the right supply and extract cleaning scope
What to send with your enquiry
- Site postcode and building use.
- Number of AHUs or ventilation systems, if known.
- Drawings, previous hygiene reports and access details.
- Preferred working hours and any permit or isolation requirements.
What the report should explain
- Systems and accessible ductwork included in the clean.
- Inspection and verification evidence within the agreed scope.
- Any inaccessible, uncleaned or defective areas.
- Recommended next steps, rather than an unsupported whole-building guarantee.
Local service information: Wakefield & Pontefract · Leeds · Sheffield.
Need damper testing too? See fire and smoke damper testing. Kitchen extract grease systems are covered separately by TR19 Grease cleaning.
Request a TR19 Air Quote
Tell us about your site and we'll come back with a fixed-price quote. No obligation. We may contact you to clarify the scope, access requirements and your preferred working arrangements.
Quote Request Received
Thank you — we'll review your details and come back with a fixed-price quote within one working day.
Brad Goodale — Yorkshire PureAir Compliance
07356 176929 | brad.goodale@yorkshirepureaircompliance.co.uk
Not Sure What You Need?
Use our free compliance check to find out which services apply to your premises — takes less than 2 minutes.
Take the Compliance Check →Free TR19 Air 2026 Gap Check
Not sure whether your last ventilation cleaning certificate meets the 2026 standard? WhatsApp me a photo of it on 07356 176929 and I'll check it against the current TR19 Air requirements and tell you the same day if anything's missing. Free, no catch, no follow-up spam.
WhatsApp 07356 176929 →