Common Asbestos Remediation Problems
Understanding common asbestos remediation problems helps dutyholders, contractors, and consultants manage risk, avoid delays, and maintain compliance. Asbestos removal by and large goes off without a hitch – however, unexpected site conditions, unclear scopes, and practical constraints can all create challenges during remediation works. Recognising these issues early allows removal teams to plan effectively and keep projects on track and under budget.
Licensed asbestos removal: where complexity increases
Licensed asbestos work typically involves higher-risk materials and stricter controls, so problems can carry greater consequences if not managed correctly.
One of the most critical stages is independent analyst sign-off. Clearance testing and certification by an independent UKAS-accredited analyst provides assurance that an area is safe for reoccupation. Delays can occur if:
- Remnants of asbestos containing materials (ACMs) persist following removal
- Enclosures fail visual inspection or air testing
- Cleaning standards do not meet clearance requirements
Incomplete removal remains a common issue. Even small traces of remaining asbestos can lead to failed clearances, requiring re-cleaning and re-inspection. This often stems from poor access, complex and pitted substrates, or inadequate scoping.
Non-licensed work: risks from assumptions and scope gaps
Non-licensed asbestos work often appears more straightforward, but it still presents significant risks when teams make assumptions or rely on incomplete information.
One of the most common problems involves asbestos outside the original scope. Survey limitations, restricted access, or changes to planned works can all lead to previously unidentified ACMs being discovered during remediation.
When this happens, you should:
- Stop work immediately in the affected area and prevent unauthorised access
- Arrange further assessment or sampling
- Update the scope of works and risk assessments, implementing further controls where necessary
- Communicate clearly with all stakeholders before proceeding
Failure to follow this process can result in uncontrolled disturbance and potential exposure.
Universal considerations
Certain installations also present additional challenges. For example, asbestos insulating board (AIB) or cement soffits on terraced or semi-detached properties often cross boundary lines where consecutive properties were constructed at the same time. Contractors must carefully coordinate removal to avoid removing boards that belong the neighbouring property if they are outside the scope of removal. This often means scoring and controlled breakage of the boards and subsequent encapsulation and labelling, to ensure that the fibrous edges are contained; disturbance by a reinstatement contractor is thereby mitigated.
You may also encounter ACMs that form part of the building structure, such as packed beams, spacers mortared into brickwork, or permanent shuttering in ducts and beneath poured concrete slabs. Full removal may not always be practical without compromising structural integrity, so alternative approaches such as encapsulation or over-boarding should be considered where the risk assessment deems it necessary.
Another frequent issue involves the reinstatement of building fabric or services. Removing ACMs often disrupts fire compartmentation, decorative finishes, and service provisions such as water and electric. If teams do not plan for reinstatement, they can leave buildings non-compliant with fire and other building regulations.
You should ensure:
- Fire-stopping measures are reinstated in line with current guidance
- Any penetrations are sealed to maintain compartmentation
- For example: intumescent seals or fire collars around pipework between fire compartments
- Walls, ceilings, and other elements are repaired with non-asbestos materials
- For example: where decorative textured coatings are stripped from a concrete substrate, a plaster skim is often required to provide an acceptable surface for redecoration.
- Any affected services that were altered or removed as part of the work are reinstated as required
- For example: an asbestos-insulated pipe run was wrapped and cut under fully controlled conditions and removed whole as asbestos waste – this pipework will need to be reinstated by a suitably competent engineer before that system can go live again.
Both licensed and non-licensed projects require careful coordination between removal contractors, analysts, and dutyholders. When you define scope clearly, respond to unexpected findings properly, and plan for reinstatement, you reduce risk and deliver safer outcomes with minimal hassle.
If you like the sound of this, contact us today to manage your asbestos removal projects.
