What Every Property Owner Needs to Know About Understanding Asbestos and Its Dangers
Asbestos has killed more people in the UK than any other single work-related cause of death. It is not a relic of industrial history — it is sitting inside millions of buildings right now, and disturbing it without knowing what you are dealing with can be fatal. Understanding asbestos and its dangers is not optional for anyone who owns, manages, or works in a property built before the year 2000.
This post cuts through the confusion. You will find out what asbestos actually is, where it hides, how it damages the body, and exactly what you should do if you suspect it is present in your building.
What Is Asbestos?
Asbestos is not a single substance. It is a collective term for six naturally occurring silicate minerals that share one defining characteristic: they break apart into microscopic fibres. Those fibres are strong, heat-resistant, and chemically stable — which is precisely why the construction and manufacturing industries used them so heavily throughout the twentieth century.
The six types fall into two broad families:
- Serpentine: Chrysotile (white asbestos) — the most widely used type, commonly found in roof sheets, floor tiles, and pipe lagging.
- Amphibole: Includes amosite (brown asbestos), crocidolite (blue asbestos), tremolite, anthophyllite, and actinolite. Amphibole fibres are generally considered more hazardous because they are longer, more rigid, and persist in lung tissue for longer.
All six types are classified as carcinogens. There is no safe type of asbestos, and there is no safe level of exposure.
Where Is Asbestos Found in Buildings?
In the UK, asbestos use was banned in new construction in 1999. Any building constructed or refurbished before that date may contain asbestos-containing materials (ACMs). The older the building, the higher the likelihood — but even properties from the 1980s and 1990s can contain ACMs installed during that period.
Common locations include:
- Ceiling tiles and textured coatings such as Artex applied before 2000
- Floor tiles and the adhesive beneath them
- Pipe lagging and boiler insulation
- Roof sheets, particularly corrugated asbestos cement panels
- Soffit boards and fascias
- Insulating board used around fire doors, partitions, and heating systems
- Spray-applied coatings on structural steelwork
- Gaskets and rope seals inside industrial equipment
The critical point is that asbestos cannot be identified by sight alone. A grey ceiling tile looks identical whether it contains asbestos or not. Only laboratory analysis of a sample — carried out by a qualified surveyor — can confirm its presence.
Understanding Asbestos and Its Dangers: How People Are Exposed
Asbestos that is in good condition and left undisturbed poses a relatively low immediate risk. The danger arises when ACMs are damaged, drilled, cut, sanded, or otherwise disturbed — releasing fibres into the air where they can be inhaled or, to a lesser extent, ingested.
Inhalation
Breathing in asbestos fibres is by far the most significant route of exposure. The fibres are invisible to the naked eye and have no smell or taste. They can remain suspended in the air for hours after a disturbance, meaning someone who walks into a room long after the initial work has finished can still receive a significant dose.
Occupations historically associated with high exposure include:
- Laggers and insulation workers
- Plumbers, electricians, and heating engineers working in older buildings
- Demolition and construction workers
- Shipyard workers
- Firefighters attending incidents in older buildings
- Carpenters and joiners working with asbestos insulating board
Secondary exposure is also a real concern. Family members of workers who brought contaminated clothing home have developed asbestos-related diseases without ever setting foot on a worksite.
Ingestion
Swallowing asbestos fibres is a less common but recognised route of exposure. Fibres can contaminate food and water — particularly where old asbestos cement pipes form part of a water supply system — or be transferred from hands to mouth by workers who have not washed properly before eating or drinking.
Good hygiene practices on site, including dedicated welfare facilities and changing areas, significantly reduce ingestion risk.
The Health Consequences of Asbestos Exposure
The diseases caused by asbestos exposure are serious, largely irreversible, and in many cases fatal. What makes them particularly devastating is the latency period — symptoms typically do not appear until 20 to 50 years after exposure. Someone exposed during building work in the 1970s may only be receiving a diagnosis today.
Mesothelioma
Mesothelioma is a cancer of the mesothelium — the thin membrane lining the lungs (pleura), abdomen (peritoneum), and heart (pericardium). It is almost exclusively caused by asbestos exposure and is one of the most aggressive cancers known.
Median survival following diagnosis is typically measured in months rather than years, though treatment advances are improving outcomes for some patients. Symptoms include persistent chest pain, breathlessness, and unexplained weight loss. Because these symptoms are common to many less serious conditions, mesothelioma is frequently diagnosed at an advanced stage.
Asbestosis
Asbestosis is a chronic, progressive scarring of the lung tissue caused by the body’s inflammatory response to trapped asbestos fibres. As scar tissue accumulates, the lungs become progressively stiffer and less able to transfer oxygen into the bloodstream.
Symptoms — a persistent dry cough, increasing breathlessness on exertion, and chest tightness — worsen over time even after exposure has ceased. There is no cure; treatment focuses on managing symptoms and slowing progression. Asbestosis also significantly increases the risk of developing lung cancer.
Lung Cancer
Asbestos is a well-established cause of lung cancer, separate from and in addition to its role in causing mesothelioma. The risk is substantially multiplied in people who both smoke and have been exposed to asbestos — the two risk factors interact synergistically rather than simply adding together.
Workers in high-exposure occupations who smoke are strongly advised to discuss their history with their GP and to consider regular screening where it is available.
Pleural Thickening and Pleural Plaques
Pleural thickening involves the diffuse scarring and hardening of the pleural lining around the lungs. In severe cases, the thickened tissue effectively constricts the lungs, making breathing progressively more difficult.
Pleural plaques are discrete areas of fibrous thickening, generally considered a marker of past asbestos exposure rather than a disease in themselves — though their presence indicates the lungs have been exposed to fibres. Both conditions are detectable on chest X-ray and CT scan, and their presence should prompt a thorough occupational history review.
Who Is at Risk in the UK Today?
While heavy industrial exposure is less common than it was in the mid-twentieth century, asbestos-related disease remains a significant public health issue. The HSE consistently reports that tradespeople — particularly plumbers, electricians, carpenters, and general builders — now represent the occupational group most frequently exposed to asbestos in the UK.
The reason is straightforward: these workers regularly disturb building fabric in older properties without always being aware that ACMs are present. A plumber fitting a new radiator in a 1960s school, an electrician chasing cables through a 1970s office block, a carpenter replacing a fire door in a Victorian terrace — all face potential exposure if an asbestos survey has not been carried out first.
Property managers and duty holders in the commercial and public sectors carry a legal obligation under the Control of Asbestos Regulations to manage asbestos in their premises, maintain an up-to-date asbestos register, and ensure that anyone likely to disturb ACMs is informed of their location and condition before work begins.
If you manage properties across different regions of the UK, working with a nationally accredited provider simplifies compliance considerably. Whether you need an asbestos survey in London, an asbestos survey in Manchester, or an asbestos survey in Birmingham, using a UKAS-accredited contractor ensures your survey report will withstand regulatory scrutiny and give you an accurate, legally defensible picture of your building’s asbestos status.
The Importance of a Professional Asbestos Survey
Before any refurbishment, demolition, or maintenance work on a pre-2000 building, a professional asbestos survey is a legal requirement under the Control of Asbestos Regulations. Failing to commission one is not just a regulatory oversight — it can expose workers and occupants to potentially fatal risk.
Management Surveys
A management survey identifies ACMs that could be disturbed during normal building use and everyday maintenance. It forms the foundation of your asbestos management plan and is the starting point for meeting your duty to manage under the Control of Asbestos Regulations.
Refurbishment and Demolition Surveys
A demolition survey goes further, locating all ACMs in areas that will be affected by planned refurbishment or demolition work. It is more intrusive than a management survey and must be completed before any structural work begins.
Both survey types must be carried out by a surveyor holding the P402 qualification or equivalent, working for a body accredited by UKAS to ISO 17020. Accreditation is independent verification that the surveyor’s methods, equipment, and quality management meet the standards set out in HSE guidance document HSG264.
Emergency Response: What to Do If Asbestos Is Disturbed
If you suspect asbestos has been disturbed — for example, a contractor has drilled into a ceiling tile, or damaged pipe lagging has been discovered — the immediate priority is to stop the spread of fibres. Act quickly and follow these steps:
- Stop all work in the affected area immediately.
- Evacuate the area and prevent anyone from re-entering.
- Do not use a standard vacuum cleaner — this will spread fibres further. Only a HEPA-filtered vacuum is suitable.
- Seal off the area with polythene sheeting where practicable.
- Contact a licensed asbestos contractor to carry out air monitoring and a thorough assessment.
- Do not re-occupy the space until air clearance testing confirms it is safe.
- Keep records of the incident, including who was present, what happened, and what remedial action was taken.
If workers have been exposed, they should be informed of the potential exposure and advised to notify their GP. Under RIDDOR (Reporting of Injuries, Diseases and Dangerous Occurrences Regulations), certain asbestos exposure incidents must be reported to the HSE.
How to Manage Asbestos Safely and Legally
The Control of Asbestos Regulations set out clear duties for those responsible for non-domestic premises. The core obligation is to manage asbestos — not necessarily to remove it. In many cases, ACMs that are in good condition and are not likely to be disturbed are best left in place and managed through regular monitoring and a written asbestos management plan.
The Asbestos Management Plan
A management plan should record the location, type, condition, and risk rating of all identified ACMs. It should also set out inspection intervals, responsibilities, and the procedures for informing contractors before any work begins.
HSE guidance document HSG264 provides detailed advice on how surveys should be conducted and how findings should be recorded. The plan is a living document — it must be reviewed and updated whenever the condition of ACMs changes, after any incident, or when structural changes are made to the building. Leaving a management plan to gather dust on a shelf is a compliance failure, not a defence.
When Removal Is Necessary
Removal is required when ACMs are in poor condition, are friable (easily crumbled), or cannot be adequately protected during planned works. It is also required before demolition — a demolition survey must be completed first to identify everything that needs to go.
Licensed removal contractors — those holding a licence issued by the HSE under the Control of Asbestos Regulations — must be used for the most hazardous materials, including sprayed coatings, asbestos insulating board, and pipe lagging. Unlicensed contractors can carry out lower-risk work on materials such as asbestos cement, but even this work must follow strict control measures.
Never attempt to remove suspected ACMs yourself. The cost of professional removal is always lower than the cost of a contamination incident, a regulatory enforcement action, or the human cost of preventable disease.
Protecting Your Building and the People In It
Understanding asbestos and its dangers is the first step — but knowledge only protects people if it leads to action. If you have not yet commissioned a survey for your pre-2000 building, or if your existing asbestos register has not been reviewed recently, now is the time to act.
The practical steps every duty holder should take are:
- Commission a UKAS-accredited asbestos survey if one has not been carried out, or if the building has been significantly altered since the last survey.
- Ensure your asbestos register is current, accessible, and shared with anyone who may carry out work on the building.
- Appoint a named person responsible for managing asbestos on the premises.
- Brief all contractors about the presence and location of ACMs before they begin any work.
- Schedule regular reinspections of ACMs in accordance with your management plan.
- Train relevant staff so they understand the risks and know what to do if they suspect a material has been disturbed.
Asbestos management is not a one-off task. It is an ongoing responsibility that runs for the lifetime of the building — or until all ACMs have been safely removed.
Frequently Asked Questions
How do I know if my building contains asbestos?
You cannot tell by looking. Any building constructed or refurbished before 2000 may contain asbestos-containing materials. The only way to confirm whether ACMs are present — and to identify their type, location, and condition — is to commission a professional asbestos survey carried out by a UKAS-accredited surveyor.
Is asbestos dangerous if it is left undisturbed?
Asbestos that is in good condition and is not at risk of being disturbed poses a low immediate risk. The danger arises when fibres are released into the air through damage, drilling, cutting, or deterioration. This is why a management plan — not automatic removal — is often the appropriate response for ACMs in good condition.
What diseases does asbestos cause?
Asbestos exposure is linked to mesothelioma, asbestosis, lung cancer, pleural thickening, and pleural plaques. All of these conditions have a long latency period, meaning symptoms may not appear for 20 to 50 years after exposure. There is no safe level of asbestos exposure, and all six types of asbestos are classified as carcinogens.
Who is legally responsible for managing asbestos in a building?
Under the Control of Asbestos Regulations, the duty to manage asbestos falls on the person or organisation responsible for maintaining or repairing non-domestic premises — this is known as the duty holder. In practice this is often the building owner, landlord, or facilities manager. The duty holder must ensure a survey has been carried out, maintain an asbestos register, and inform contractors of any ACMs before work begins.
Do I need a licensed contractor to remove asbestos?
It depends on the material. High-risk materials — including sprayed asbestos coatings, asbestos insulating board, and pipe lagging — must be removed by a contractor holding an HSE licence. Lower-risk materials such as asbestos cement can be handled by unlicensed contractors under certain conditions, but strict control measures still apply. When in doubt, always use a licensed contractor.
Get Expert Help From Supernova Asbestos Surveys
Supernova Asbestos Surveys has completed over 50,000 surveys across the UK. Our UKAS-accredited surveyors work to the standards set out in HSG264, providing clear, accurate reports that give you a legally defensible record of your building’s asbestos status.
Whether you need a management survey for an occupied commercial building, a demolition survey ahead of refurbishment works, or urgent advice following a suspected disturbance, our team is ready to help.
Call us on 020 4586 0680 or visit asbestos-surveys.org.uk to request a quote or speak to a qualified surveyor today.