What Do Asbestos Surveyors Check? A Building-by-Building Breakdown
Not every corner of a building carries the same asbestos risk — and an experienced surveyor knows exactly where to look. Understanding what do asbestos surveyors check helps you ask sharper questions, hold contractors accountable, and ensure nothing gets missed on your property.
Whether you manage a 1970s office block, a school, an industrial unit, or a period conversion, the materials, locations, and conditions covered below are what trained surveyors focus on most closely — and why.
Insulation and Fireproofing: The Highest-Risk Materials
Asbestos was prized above almost everything else for its fire resistance and thermal insulation properties. That’s why it ended up in so many insulation and fireproofing applications — and why these materials remain among the most commonly found asbestos-containing materials (ACMs) in UK buildings.
Spray-applied asbestos coatings were used on structural steelwork, concrete beams, and columns to provide fire protection. Pipe lagging — the insulation wrapped around heating pipework, boilers, and calorifiers — frequently contains amosite or chrysotile asbestos. Both are classed as higher-risk materials because deterioration or disturbance can release fibres readily.
During a survey, inspectors will examine:
- Pipe lagging in boiler rooms, plant rooms, and service corridors
- Thermal insulation on heating systems and hot water tanks
- Sprayed coatings on structural steelwork and concrete surfaces
- Insulation boards used as fire barriers or duct linings
These materials often sit in areas that aren’t regularly accessed — plant rooms, roof voids, service corridors — which is precisely why they can deteriorate unnoticed for years.
Ceiling Tiles, Floor Coverings, and the Voids Above and Below
Suspended ceiling tiles are one of the most reliable hiding places for asbestos in commercial buildings. Many older offices, schools, and public buildings installed mineral fibre or textured ceiling tiles that contained asbestos as a binder or filler.
The void above a false ceiling compounds the problem. ACMs may be present in the tiles themselves and in the space above, where pipe lagging, insulation boards, and other materials may have been installed and forgotten.
Floor coverings are equally important. Vinyl floor tiles — particularly the 9-inch square format common in offices and schools from the 1960s through to the 1980s — frequently contain chrysotile asbestos. The adhesive used to lay them can also be asbestos-containing. Bitumen-based floor tile adhesives, thermoplastic tiles, and some sheet vinyl products all warrant close scrutiny.
Surveyors will pay particular attention to:
- All suspended ceiling tiles in pre-2000 commercial buildings
- The void above false ceilings, including service ducts and cable trays
- Vinyl floor tiles and the adhesive beneath them
- Sheet vinyl flooring in kitchens, corridors, and utility areas
- Floor coverings in basements, cellars, and ground-floor areas
Where floor tiles are covered by a newer layer of carpet or flooring, the surveyor must assess whether the underlying material can be safely sampled. A refurbishment survey will require intrusive access to confirm the presence or absence of ACMs beneath overlaid surfaces.
Textured Coatings and Decorative Finishes
Artex and similar textured decorative coatings were applied to ceilings and walls in millions of UK homes and commercial properties. These coatings frequently contained chrysotile asbestos up until the late 1980s, and in some cases beyond that.
The asbestos content is typically low, and an undamaged textured coating in good condition poses minimal risk. But any work that involves sanding, scraping, or drilling through these surfaces has the potential to release fibres.
Surveyors will assess the condition of textured coatings and, where appropriate, take samples for laboratory analysis. If you’re planning any redecoration, ceiling work, or installation of downlights, make sure these surfaces have been assessed before work starts. This is not optional — it’s part of your duty to manage under the Control of Asbestos Regulations.
Structural Components: Beams, Columns, and Enclosures
In refurbishment and demolition surveys, structural elements demand particularly thorough inspection. Asbestos insulating board (AIB) was commonly used to encase structural steelwork, forming protective enclosures around beams and columns. These enclosures can look deceptively ordinary — a standard boxed-in column or beam may be lined with AIB on the inside.
AIB is classified as a higher-risk material. It’s more friable than many other ACMs and can release significant quantities of fibres if cut, drilled, or broken. Any refurbishment work that involves removing or altering structural enclosures must be preceded by a proper survey to establish exactly what’s present.
A demolition survey is intrusive by nature — surveyors will need access to areas that might be boarded up, covered, or otherwise inaccessible during a routine management survey. This is a legal requirement under the Control of Asbestos Regulations before notifiable work begins.
What Do Asbestos Surveyors Check When It Comes to Material Condition?
Condition is as important as location. An ACM in good condition and unlikely to be disturbed presents a very different risk profile from one that’s crumbling, water-damaged, or showing signs of physical deterioration.
Surveyors assess the condition of each ACM they identify, applying a material assessment score that accounts for:
- The type of asbestos present
- The product type and its friability
- Surface treatment — sealed or unsealed
- Extent of damage or deterioration
Areas where deterioration is commonly found include:
- Boiler rooms and plant rooms, where heat and humidity accelerate degradation
- Roof spaces and loft voids, where temperature fluctuations and water ingress take their toll
- Storage areas, loading bays, and corridors subject to accidental damage
- Lift shafts and risers, where maintenance activity may have disturbed materials over the years
- External surfaces such as asbestos cement roofing sheets and cladding
If deteriorated ACMs are found, the surveyor’s report will include recommendations for remedial action. Depending on the condition and risk, that might mean encapsulation, enclosure, or asbestos removal by a licensed contractor.
Roof Spaces, Lofts, and Concealed Voids
These concealed areas are some of the most important to access during a survey — and some of the most commonly skipped when building owners try to manage asbestos informally.
Loft spaces in older commercial properties and flat roofs with accessible voids often contain pipe lagging, loose-fill asbestos insulation, and AIB boards. Loose-fill asbestos insulation — poured between floor joists or used as cavity fill — is particularly hazardous. It’s friable, easily disturbed, and highly dangerous when any building work is carried out.
Service ducts, riser shafts, and ceiling voids should be inspected wherever safe access can be achieved. In an asbestos management survey, access may be limited by practicality and safety. In a refurbishment survey, intrusive investigation of these areas is required.
External Asbestos Cement Products
Asbestos cement was used extensively in external building elements — corrugated roofing sheets, flat roof panels, wall cladding, guttering, downpipes, and fascia boards. It’s one of the most prevalent ACMs in UK commercial and industrial buildings.
Asbestos cement is a lower-risk material compared to AIB or sprayed coatings, but it can’t be ignored. Weathered, cracked, or mossy asbestos cement can release fibres — particularly if it’s damaged, jet-washed, or drilled during maintenance.
External walls clad with asbestos cement panels are a common feature of 1960s and 1970s industrial units and school buildings. A thorough survey will always include the external envelope of the building, not just the interior. Any surveyor who doesn’t step outside hasn’t done the full job.
The Pre-2000 Building Priority
The importation and use of all forms of asbestos was banned in the UK by 1999. Any building constructed or significantly refurbished before that date could potentially contain asbestos. The older the building, the greater the likelihood — but buildings from the 1990s aren’t automatically safe, particularly where refurbishment work used materials sourced before the ban.
Different eras carry distinct risk profiles:
- Pre-1960s: Blue asbestos (crocidolite) and brown asbestos (amosite) were widely used, particularly in industrial and commercial buildings. Sprayed coatings on structural steelwork were common.
- 1960s–1970s: Peak use of AIB, asbestos cement, vinyl floor tiles, and ceiling tiles. Many public sector buildings — schools, hospitals, local authority offices — date from this period.
- 1980s–1990s: Chrysotile remained in use in textured coatings, some insulation products, and gaskets. Materials from this period can still contain asbestos, though less commonly than earlier decades.
If you manage or own a building constructed before 2000 and don’t have an up-to-date management survey on file, you have a legal duty under the Control of Asbestos Regulations to arrange one.
Heritage Buildings and Historic Properties
Heritage buildings present their own specific challenges. Victorian and Edwardian buildings predate widespread asbestos use, but many were retrofitted with asbestos-containing materials during the mid-20th century — particularly during post-war renovation programmes.
A historic exterior can conceal decades of internal modification, including asbestos insulation, AIB partitions, and textured coatings applied during 1960s and 1970s refurbishments. The complexity increases when listed building consent is required for intrusive survey work, or when structural constraints limit access.
If you’re planning renovation work on a heritage property, commission a survey early in the project planning phase. Discovering asbestos mid-project causes delays and cost overruns that are entirely avoidable.
How Surveyors Confirm What They Find: Sampling and Analysis
Visual identification alone isn’t enough to confirm the presence of asbestos. Surveyors collect bulk samples from suspect materials, which are then sent to an accredited laboratory for analysis. The results confirm whether asbestos is present, which fibre type, and at what proportion.
This is why asbestos testing is an integral part of any survey — not an optional add-on. The laboratory findings feed directly into the material assessment score and the recommendations in your survey report.
If you want to test a specific material before commissioning a full survey, a testing kit allows you to collect a sample safely and send it for professional sample analysis. This can be a useful first step, but it doesn’t replace a full survey — particularly if you have a legal duty to manage asbestos in a non-domestic property.
What a Thorough Survey Report Should Contain
The quality of the survey report matters as much as the quality of the inspection itself. A thorough report should clearly record:
- The location of every ACM identified, with photographs and floor plan references
- The type of asbestos confirmed by laboratory analysis
- The condition of each material
- A material assessment score and recommended action for each ACM
- Any areas that were inaccessible, and the reason why
That last point matters considerably. If areas couldn’t be accessed, the report must flag them explicitly — so they’re not forgotten and a follow-up inspection can be planned. An inaccessible area is not a safe area.
HSE guidance under HSG264 sets out the standards surveyors must follow when conducting and reporting on surveys. If your existing report doesn’t meet these standards, it may not be fit for purpose — and you may still be exposed to legal liability as a dutyholder.
Choosing the Right Type of Survey for Your Situation
Not all surveys are the same, and using the wrong type can leave significant gaps in your knowledge of the building’s asbestos risk.
Management Survey
A management survey is the standard survey for occupied buildings. It identifies ACMs that could be disturbed during normal occupation and everyday maintenance. It’s non-intrusive, meaning surveyors work within the accessible areas of the building without breaking into the fabric of the structure. This is the survey most dutyholders need to fulfil their ongoing legal obligations.
Refurbishment and Demolition Surveys
Where building work, alteration, or demolition is planned, a more intrusive survey is required. A refurbishment survey focuses on the specific areas where work will take place, while a demolition survey covers the entire building — including areas that must be destructively investigated. Both surveys must be completed before any notifiable work begins, in line with the Control of Asbestos Regulations.
If you’re unsure which survey type applies to your situation, a qualified surveyor can advise you. For properties in London, our asbestos survey London service covers the full range of survey types across all property categories.
What Happens After the Survey?
The survey is the starting point, not the end. Once you have a report in hand, you need to act on its findings. For most non-domestic buildings, this means creating or updating an asbestos register and putting an asbestos management plan in place.
The management plan sets out how identified ACMs will be monitored, who is responsible for managing them, and what action will be taken if their condition changes. It’s a living document — not something to file away and forget.
Where ACMs are in poor condition or present a risk that can’t be managed in situ, remedial work will be required. Depending on the material and its risk level, options include encapsulation, over-boarding, or full removal by a licensed contractor. Your survey report should make clear which option is appropriate for each material identified.
For ongoing asbestos testing requirements — such as air monitoring during or after remedial work — your surveying company should be able to advise on the appropriate approach and arrange accredited laboratory analysis.
Frequently Asked Questions
What do asbestos surveyors check in a typical commercial building?
Surveyors check all areas where asbestos-containing materials are likely to be present, including pipe lagging, ceiling tiles, floor tiles and adhesives, textured coatings, structural enclosures, roof spaces, service voids, and external asbestos cement products. The scope depends on the type of survey commissioned — a management survey covers accessible areas, while a refurbishment or demolition survey involves intrusive investigation of concealed spaces.
Do asbestos surveyors check outside the building as well as inside?
Yes. A thorough survey always includes the external envelope of the building. Asbestos cement was widely used in corrugated roofing, wall cladding, guttering, downpipes, and fascia boards. Any surveyor who limits their inspection to the interior has not completed a full assessment.
How do surveyors confirm whether a material contains asbestos?
Visual identification alone is insufficient. Surveyors take bulk samples from suspect materials and send them to an accredited laboratory for analysis under polarised light microscopy. The results confirm the presence, fibre type, and approximate proportion of asbestos in the sample. This laboratory analysis is a core part of every survey, not an optional extra.
Do I need a survey if my building was built in the 1990s?
Potentially, yes. The UK ban on all asbestos types came into effect in 1999, so buildings constructed or refurbished before that date could contain asbestos. Buildings from the 1980s and 1990s may contain chrysotile in textured coatings, some insulation products, and gaskets. If you’re a dutyholder for a non-domestic property built before 2000, the Control of Asbestos Regulations requires you to have an up-to-date management survey in place.
What should I do if my survey report identifies asbestos-containing materials?
The first step is to read the material assessment scores and recommendations carefully. Not all ACMs require immediate removal — many can be safely managed in place if they’re in good condition and unlikely to be disturbed. You’ll need to update your asbestos register and management plan to reflect the findings. Where materials are in poor condition or remedial work is recommended, contact a licensed contractor to discuss encapsulation or removal options.
Get a Professional Asbestos Survey from Supernova
Supernova Asbestos Surveys has completed over 50,000 surveys across the UK, working with property managers, local authorities, schools, landlords, and developers. Our surveyors are qualified, accredited, and trained to the standards set out in HSG264 — so you can be confident that nothing gets missed.
Whether you need a management survey for an occupied building, a refurbishment survey ahead of planned works, or a full demolition survey, we’ll provide a detailed, compliant report that gives you a clear picture of your asbestos risk and your next steps.
Call us on 020 4586 0680 or visit asbestos-surveys.org.uk to get a quote or book a survey today.