Asbestos in London Homes: What to Do if You Find It or Suspect It

**Typical building products containing asbestos in pre-2000 London housing**:

Asbestos was added to building products for fire resistance, insulation, and strength. The types of asbestos found in domestic buildings and their risk profile:

*Chrysotile (white asbestos)*: The most common form in domestic products; lower risk than brown or blue asbestos (amphibole types) but still hazardous when airborne fibres are inhaled. *Amosite (brown asbestos)*: Typically found in insulation boards, ceiling tiles, and some floor tiles; higher risk than chrysotile. *Crocidolite (blue asbestos)*: The most hazardous form; used primarily in spray insulation and pipe lagging; less common in domestic settings than commercial buildings.

**Where to suspect asbestos-containing materials in a London home**:

*Artex and textured coatings*: Artex (the brand-name textured ceiling coating) applied before the mid-1980s almost certainly contains asbestos. After the mid-1980s, Artex changed its formulation to reduce asbestos content. All textured ceiling coatings applied before 1985 should be assumed to contain asbestos until tested. Artex in good condition (not crumbling or damaged) poses very low risk — the fibres are locked into the coating and are not airborne. Risk arises when drilling, sanding, or removing the coating.

*Floor tiles*: Vinyl floor tiles (typically 9-inch or 12-inch square) and their black bitumen adhesive were commonly manufactured with asbestos until the late 1980s. Sheet vinyl floor coverings may also contain asbestos. In good condition, tile fibres are encapsulated and pose low risk; sanding or grinding the tiles or adhesive releases fibres.

*Asbestos insulation board (AIB)*: Used extensively for: fire protection around boilers and hot pipes; partition walls and ceiling tiles (particularly in properties with suspended ceilings); external soffits and fascias on some property types; in some cases as roof boarding. AIB is friable (can be easily crumbled) and is a higher-risk material than vinyl tiles or Artex. AIB must be managed or removed by a licensed contractor.

*Cement-based asbestos products*: Asbestos cement was used for: corrugated roofing sheets (garages, outbuildings); flat roof boarding; rainwater goods (gutters and downpipes on some properties built in the 1950s–1970s); external wall cladding (particularly on 1950s–1970s system-built houses). Asbestos cement is denser and less friable than AIB — it is lower risk but still must be managed correctly during removal.

*Pipe lagging*: Hot water pipes and boiler pipes in older properties may be wrapped in asbestos-containing lagging. This is particularly common in properties not updated since the 1960s–1970s. Pipe lagging is often the highest-risk ACM found in domestic settings because it may be damaged and friable.

**The 2000 cut-off rule**:

Asbestos was banned in Great Britain from 24 November 1999. Any building work or material installed before November 1999 may potentially contain asbestos. Any material installed from December 1999 onwards cannot contain asbestos. For a property built or substantially renovated before 1999, the presence of ACMs in some elements should be assumed until a survey confirms their absence.

**The three types of asbestos survey**:

**Management survey (formerly Type 2)**:

A management survey identifies ACMs in a building in their normal occupied state — it does not involve intrusive investigation (no opening up of walls, floors, or ceilings). It records the location, type, condition, and risk of each identified or presumed ACM, and produces an Asbestos Register.

*When required*: A management survey is required for commercial buildings and is good practice for private dwellings before undertaking any building works. For a homeowner planning a major renovation or extension where existing materials will be disturbed, commissioning a management survey is advisable.

*Cost*: £150–£400 for a standard domestic management survey (depending on property size).

**Refurbishment and demolition survey (formerly Type 3)**:

A more intrusive survey — the surveyor opens up walls, floors, and ceilings to identify ACMs in areas that will be affected by the proposed building works. This survey is required before any major refurbishment or demolition work.

*When legally required*: Under the Control of Asbestos Regulations 2012, a refurbishment/demolition survey must be commissioned by the 'dutyholder' (for a private domestic client, typically the contractor or principal contractor under CDM 2015) before significant refurbishment or demolition works begin. Practically, for a major London renovation project (strip-out, structural alterations, removal of existing ceilings and floors), a refurbishment and demolition survey should be commissioned before the contractor starts work.

*Cost*: £300–£800 for a domestic refurbishment/demolition survey depending on scope and number of intrusive openings required.

**The asbestos analyst and sample testing**:

Both survey types are typically carried out by a UKAS-accredited asbestos surveying company. The surveyor takes bulk samples from suspected ACMs and submits them to a UKAS-accredited laboratory for analysis. Results are typically available within 2–5 working days; same-day or next-day results are available at a premium.

*Quick home test kits*: Home testing kits for asbestos are available online (e.g., via Asbestos Consultancy Group or similar). The homeowner takes a small sample and sends it to the laboratory. This is adequate for testing a specific suspect material (a piece of Artex, a floor tile) but is not a substitute for a professional survey that assesses all materials systematically.

**Managing ACMs in place (the low-risk option)**:

• For ACMs in good condition that will not be disturbed by building works, management in place is often the appropriate approach:
• •Record the location and condition of each ACM in an Asbestos Register
• •Monitor condition at regular intervals (annually for commercial; less formally for domestic)
• •Seal or encapsulate ACMs that are in marginal condition (paint-on encapsulant on Artex; vinyl cap over damaged floor tiles)
• •Instruct any contractors working near the ACM to avoid disturbing it

*When management in place is appropriate*: Artex ceiling in a room that will be decorated but not structurally altered; floor tiles that will be covered with new flooring rather than removed; asbestos cement soffit in good condition on an outbuilding not being demolished.

**When does asbestos removal require a licensed contractor?**

The Control of Asbestos Regulations 2012 defines three categories of work:

• **Licensed work**: Work with licensed asbestos must only be carried out by a contractor holding an Asbestos Licence from the HSE. Licensed work includes:
• •Removal of asbestos insulation board (AIB) — any quantity
• •Removal of pipe lagging containing asbestos
• •Removal of spray-applied asbestos coatings
• •Any work where the risk level is assessed as requiring a licence (high-risk, friable materials)

*Cost for licensed removal*: Variable depending on quantity and material type, but domestic licensed removal projects in London typically range from £500–£3,000 for small quantities (a few boards of AIB, a section of lagging) to £5,000–£20,000+ for larger quantities or complex access.

• **Notifiable non-licensed work (NNLW)**: Certain lower-risk work does not require an HSE licence but must be notified to the local Environmental Health Officer (EHO) before it starts, and the workers must hold a Category A asbestos qualification:
• •Removal of asbestos cement sheets (corrugated roofing)
• •Removal of floor tiles in quantities and conditions where fibre release is low-risk
• •Partial removal or disturbance of Artex

• **Non-licensed work**: Lowest-risk work that does not require an HSE licence or EHO notification:
• •Minor sporadic work with materials containing chrysotile (e.g., drilling a single hole in an Artex ceiling)
• •Sampling for asbestos analysis

*The key rule for homeowners*: If in doubt whether an ACM requires licensed or NNLW removal, commission a refurbishment/demolition survey — the survey report will specify the legal category of removal required for each ACM.

**Asbestos waste disposal**:

Asbestos-containing waste is classified as hazardous waste and must be disposed of at a licensed hazardous waste facility — it cannot be placed in a skip or taken to a household recycling centre. Licensed asbestos removal contractors manage disposal as part of their service. For small quantities of asbestos cement (e.g., a few corrugated sheets), some councils accept sealed asbestos waste at designated household hazardous waste collection points — check with the London Borough Environmental Health.

**Verifying contractor credentials for asbestos removal**:

• •Licensed contractor: Check the HSE Asbestos Licensing register at hse.gov.uk/asbestos/licensing to confirm the contractor's licence is current
• •NNLW contractor: Verify workers hold a Category A asbestos qualification
• •Survey company: Confirm UKAS accreditation for asbestos surveying and analysis

*Under no circumstances should an unlicensed contractor remove asbestos insulation board, pipe lagging, or spray coatings. This is illegal, exposes the homeowner to health risk, and creates a serious legal and liability issue if later discovered during property sale.*