Air Leakage & Air Tightness Testing
Air leakage and air tightness testing in the UK — blower door testing of commercial units to Part L, with pass certificates and smoke-assisted leak tracing where a retest is needed.
About Air Leakage & Air Tightness Testing
Air leakage and air tightness testing in the UK — blower door testing of commercial units to Part L, with pass certificates and smoke-assisted leak tracing where a retest is needed.
Our air leakage & air tightness testing work in the UK is carried out to BESA TR/19 and SFG20 standards. We record pre- and post-clean surface deposit readings where applicable, airflow and static pressure, fan performance and access panel provision, and issue photographic evidence with every report.
We cover supply, extract and kitchen extraction ventilation, ductwork cleaning and installation, fire and volume control dampers, and system balancing for restaurants, hotels, schools, offices and industrial premises across the UK — scheduled out of hours where trading hours demand it.
Common issues include grease-laden kitchen extract ductwork, insufficient airflow and unbalanced systems, noisy or failed fans and belts, missing or inaccessible access hatches, blocked louvres and grilles, and damper faults that put you outside insurance and fire safety compliance.
What's Included in Air Leakage & Air Tightness Testing
- Blower door testing to ATTMA standards
- Part L air permeability certificates
- Smoke tracing to find leakage paths
- Free advisory retest guidance on failure
How Air Leakage & Air Tightness Testing Works
- 1
Get in touch
Call or book online for air leakage & air tightness testing anywhere in the UK. We confirm scope and a fixed price.
- 2
Engineer attends
An F-Gas registered HVAC engineer attends at the agreed time, fully equipped and qualified for the work.
- 3
Work completed & reported
Work is completed to manufacturer and industry standards (CIBSE, BESA, F-Gas) and you receive a written service report on the day.
FAQs about Air Leakage & Air Tightness Testing
How much does air leakage & air tightness testing cost in the UK?+
Pricing for air leakage & air tightness testing in the UK depends on system size, access and equipment specification. We always provide a fixed written quote before any work starts.
What qualifications do your engineers hold for air leakage & air tightness testing?+
Every engineer is a directly employed, qualified commercial HVAC engineer working to BESA SFG20 and CIBSE standards, with the relevant safe-working, electrical and access qualifications for air leakage & air tightness testing in the UK.
How quickly can you attend in the UK?+
For most the UK jobs we attend the same day or next day. Emergency HVAC call-outs are available 24/7 across the UK and surrounding areas.
Do you provide a service report or certificate on completion?+
Yes — every visit ends with a full service report covering the readings taken and any parts fitted, plus an F-Gas logbook entry where refrigerant is involved and any applicable commissioning or compliance certificate.
Do you cover all sectors in the UK?+
Yes. We deliver air leakage & air tightness testing across offices, retail, restaurants, hotels, schools, hospitals, data centres and industrial sites in the UK and surrounding areas.
Related HVAC & Refrigeration Services
Our engineers can carry out any of the works below in the same visit across the UK.
Kitchen Extraction Cleaning & Service
TR/19 kitchen extraction cleaning in the UK — canopy, ductwork and extract fan deep clean with insurance-grade certificate. Eliminates grease-fire risk.
Ventilation System Installation
Commercial ventilation system installation in the UK — supply, extract, MVHR and fresh-air systems designed to Building Regs Part F and DW/144.
Evaporative Cooling Installation
Evaporative cooling installation in the UK — low-energy cooling for warehouses, factories and large open spaces. Up to 80% less energy than DX cooling.
Commercial Ventilation Repair
Commercial ventilation repair in the UK — extract fan failures, noisy ductwork, blocked grilles, leaking acoustic seals. Diagnosed and fixed first visit where possible.
Extractor Fan Installation
Commercial extractor fan installation in the UK — kitchen, toilet, plant room and warehouse fans sized, supplied and installed with safe electrical termination.
Fresh Air Ventilation Systems
Fresh air ventilation systems in the UK — bring filtered outside air into offices, gyms and meeting rooms to meet Part F and improve indoor air quality.
Ready to Book Your Air Leakage & Air Tightness Testing?
Book a air leakage & air tightness testing, maintenance visit or inspection with our commercial HVAC engineers.
- ✓ Qualified Commercial HVAC Engineers
From £395 + VAT per test