About Green Air Monitoring
27 years of trusted indoor environment expertise for commercial buildings
1999
Established
27
Years of Experience
2,500+
Assessments Completed
London & South East
Coverage
SafeContractor
Approved
Our Story
Green Air Monitoring was established in 1999. For 27 years, we have been monitoring and testing the workplace environment for general indoor air quality and occupational hygiene — the most fundamental aspects of your working environment.
Over nearly three decades, we've built relationships that go beyond the professional — many of our FM and property management clients have worked with us for 10, 15, even 20 years. That longevity speaks to the trust, consistency, and genuine partnership we bring to every engagement.
As an independent company we provide an objective service either on an ongoing basis as part of your planned preventative maintenance, workplace compliance regime, or indeed in response to a particular issue — a staff complaint or an odd smell. As a specialist provider we are flexible, responsive, and competitive.
We use current published guidelines — for example BSI's BS 40102-1:2023 — to bring our conclusions into context and ensure our recommendations are actionable and evidence-based.
Memberships and approvals
- SafeContractor approved
- Affiliate (Company) Member of the British Occupational Hygiene Society (BOHS), membership no. 67421
Our Team
The Green Air team are well qualified with expertise spanning multiple disciplines. We produce clear, comprehensive reports, giving you all the information you require — without unnecessary technical detail — to allow you to make informed decisions.
Occupational Hygiene
Qualified occupational hygienists with deep expertise in workplace exposure assessment and HSE compliance.
Building Services Engineering
Engineers who understand HVAC design, performance verification, and efficiency — not just measurement.
HVAC & Water Hygiene
Specialist knowledge of ventilation systems, ductwork cleanliness, and Legionella risk management.
EU Research (AIRLOG)
Green Air Monitoring was a member of the AIRLOG consortium — an EU R&D project establishing a European indoor air quality platform with partners in Spain, Portugal, Finland, and Hungary.
Where We Work
Based in Kent, serving London, Kent, Surrey, Essex, Sussex, Hertfordshire, Berkshire and the wider South East, across working environments from corporate offices and secure sites to hospitals, laboratories, factories and manufacturing facilities.
- Corporate offices and commercial buildings
- Secure and government environments
- NHS hospitals and healthcare facilities
- Laboratories and research centres
- Factories and manufacturing plants
- Education — schools, colleges, and universities
- Heritage and listed buildings
A Proven, Low-Risk Delivery Partner
FM teams choose us because we deliver reliability, consistency, and no surprises. Many of our facilities management clients have worked with us for over a decade — relationships built on reduced complaints, dependable reporting, and genuine partnership.
27
Years of dependable delivery
10–20yr
Average FM client tenure
95%+
Client retention — no surprises
Clients Who Trust Us
We are proud to serve 80+ organisations across FM, property, engineering, transport, retail, and public sector.
What Sets Us Apart
- Trusted since 1999 — a proven, repeatable, low-risk delivery partner for 27 years
- Independent and objective — no ties to remediation contractors or equipment suppliers
- Multi-disciplinary team — occupational hygiene, building services, HVAC, and water hygiene expertise
- Clear, actionable reports — all the information you need, without unnecessary technical jargon
- Flexible engagement — PPM contracts, one-off assessments, or rapid reactive response
- EU research pedigree — AIRLOG consortium member for European indoor air quality R&D
Need Indoor Air Quality Testing?
Get a no-obligation quote. We provide IAQ testing, ventilation assessment and environmental monitoring across London and the South East.