Asbestos Air Monitoring & Reassurance Testing
Expert environmental monitoring to ensure your indoor air quality remains safe and free from hazardous asbestos fibers during and after remedial works.
Service Overview
At Greensurv, we provide a comprehensive range of asbestos air monitoring and reassurance testing services designed to safeguard your property and its occupants. Asbestos fibers are microscopic and invisible to the naked eye, making specialized air sampling the only reliable way to verify that a space is safe to inhabit. Whether you are managing a large-scale commercial demolition or a small residential renovation, our independent, UKAS-accredited testing protocols ensure that your project remains in full compliance with the Control of Asbestos Regulations 2012. We act as an impartial third party, giving you an unbiased assessment of the air quality and ensuring that removal contractors are maintaining the highest safety standards throughout the duration of the works.
Comprehensive Compliance and Safety Monitoring
This phase is essential for tracking the effectiveness of dust suppression and containment measures during active asbestos removal. Our technicians set up high-volume air pumps in strategic locations to detect any potential fiber release beyond the designated work zone, ensuring that adjacent areas remain uncontaminated and safe for other site workers or the general public.
Establishing baseline fiber levels before any disturbance occurs to provide a clear safety reference point.
Conducted outside the asbestos enclosure to ensure no fibers are escaping through seals or ventilation gaps
Attaching sampling pumps to operatives to measure their actual exposure and verify the adequacy of their PPE
Every sample is analyzed using Phase Contrast Microscopy (PCM) in accordance with HSG248 standards
We provide instant verbal results followed by digital documentation to keep your project timeline on track
Rigorous Reassurance and Post-Removal Testing
Once asbestos materials have been removed, it is vital to prove that the environment is completely free of residual dust and debris. Our reassurance testing involves an intensive visual inspection followed by disturbed air sampling, where we physically agitate the air to ensure no hidden fibers are present, providing a final layer of protection before the area is handed back for normal use.
A mandatory legal process for licensed asbestos removal, including site inspection and final air certificates
Essential for peace of mind after minor non-licensed works or when a survey has identified damaged ACMS
Our experts use high-powered lighting to check for even the smallest traces of asbestos-containing dust
Confirming the work area was properly sealed before the final dismantling of any protective barriers
Issuing a professional certificate that serves as legal proof that the area is safe for reoccupation
Key Benefits
Strict Legal Compliance
Ensure your business meets all HSE requirements and avoids heavy fines or legal action from improper management
Health & Safety Assurance
Protect your employees and the public from the life-threatening risks of mesothelioma and asbestosis
Independent Verification
Maintain an unbiased audit trail that proves you have fulfilled your "Duty of Care" as a building owner or manager
Project Transparency
Clear, jargon-free reports that allow you to manage your contractors and property assets with total confidence
Our Process
STEP 01
Consultation & Strategy
We review your asbestos register and removal plan to design a bespoke monitoring strategy tailored to your site’s specific layout.
STEP 02
On-Site Pump Deployment
Our technicians arrive with calibrated equipment, placing pumps in high-traffic and high-risk areas to capture a representative air sample.
STEP 03
Laboratory Microscopy
Samples are immediately analyzed in our on-site mobile laboratory using advanced microscopy to count fibers with millimetre precision.
STEP 04
Final Reporting & Sign-off
You receive a comprehensive report and a Certificate of Re-occupation (where applicable), allowing your project to proceed safely.
Frequently Asked Questions
Is air monitoring required for every asbestos job?
While it is mandatory for licensed work, it is strongly recommended for all asbestos-related tasks to provide legal evidence that your site was managed safely.
How soon can you be on-site at Greensurv?
We understand that construction delays are costly; we can usually mobilize our mobile labs to your site within 24 to 48 hours across the UK.
What happens if an air test fails?
If fiber levels exceed the clearance limit, we stop work immediately. The area must be re-cleaned by the contractor and then re-tested until it passes.
Can I stay in the building while testing is happening?
During reassurance testing, the specific room being tested must be empty, but other parts of the building can usually remain operational.