Asbestos is often called the "hidden killer" because it lurks in places most homeowners never think to check. Despite being banned in the UK since 1999, asbestos remains present in an estimated 1.5 million homes across London — woven into the fabric of properties built during the 20th century's construction boom.
This room-by-room guide reveals the 10 most common places asbestos is found in London homes. Whether you're planning a renovation, buying a property, or simply want peace of mind, knowing where to look is the first step toward keeping your family safe.
Remember: you should never attempt to test or remove suspected asbestos yourself. This guide helps you know where professionals should look during an asbestos survey .
Quick Reference: Where to Check
| # | Location | Risk if Disturbed | Common in Properties Built |
|---|---|---|---|
| 1 | Textured ceilings (Artex) | Medium-High | 1960s - 1980s |
| 2 | Floor tiles | Medium | 1950s - 1980s |
| 3 | Garage/shed roofing | Medium | 1950s - 1980s |
| 4 | Pipe insulation | High | 1940s - 1980s |
| 5 | Boiler flue & cupboard | High | 1950s - 1970s |
| 6 | Behind the fuse box | High | 1950s - 1970s |
| 7 | Soffit boards & fascias | Medium | 1960s - 1980s |
| 8 | Behind fireplaces | Medium-High | 1930s - 1970s |
| 9 | Bath panels | Medium | 1960s - 1980s |
| 10 | Window sills & putty | Low-Medium | 1950s - 1970s |
1. Textured Ceilings (Artex)
Artex-style textured ceilings are perhaps the most widespread source of asbestos in London homes. Applied to millions of ceilings between the 1960s and mid-1980s, these coatings typically contain 1-5% chrysotile (white) asbestos.
How to spot it : Swirled, stippled, or patterned ceiling finishes. Common patterns include "fan," "shell," and "bark" textures.
Risk level : Medium-high. The asbestos is bound within the coating, but sanding, scraping, or drilling releases fibres immediately.
A single Artex ceiling in a standard London bedroom can contain enough asbestos fibres to fill the air above the safe exposure limit if scraped without protection.
If your home has textured ceilings and you're planning redecoration, get them tested first. Properties across Lewisham , Greenwich , and Lambeth are particularly affected due to the volume of 1960s-70s housing stock.
2. Floor Tiles and Adhesive
Vinyl floor tiles measuring 9 inches (228mm) square — particularly in brown, black, or cream — are a strong indicator of asbestos content. The black bitumen adhesive underneath (often called "black mastic") is equally likely to contain asbestos.
How to spot it : Measure the tiles. Modern standard is 12 inches; 9-inch tiles were manufactured during the asbestos era. The adhesive is typically a sticky black or dark brown substance.
Risk level : Medium. Tiles in good condition are relatively low risk but must be professionally removed before laying new flooring.
Properties in Croydon , Enfield , and Bexley — with their large stocks of post-war housing — frequently contain asbestos floor tiles.
3. Garage and Shed Roofing
Corrugated cement roofing sheets on garages, sheds, and outbuildings are one of the most visible forms of asbestos. They were cheap, durable, and fire-resistant — ideal for utility structures.
How to spot it : Grey, corrugated sheets that are weathered and may have moss or lichen growth. Often brittle with age.
Risk level : Medium. Relatively low risk if undisturbed and in good condition, but breakage during storms or DIY work releases fibres.
| Condition | Action Required |
|---|---|
| Good condition, no damage | Monitor annually, consider encapsulation |
| Minor damage, small cracks | Plan for professional removal |
| Significantly deteriorated | Arrange removal promptly |
4. Pipe Insulation (Lagging)
Asbestos pipe lagging was used extensively to insulate hot water and heating pipes. It's most commonly found in loft spaces, under floors, and in basement or boiler rooms.
How to spot it : A white, grey, or brown fibrous material wrapped around pipes, often with a textured or plaster-like outer coating.
Pipe lagging is one of the highest-risk asbestos materials. It is friable, meaning it crumbles easily when touched, releasing dangerous concentrations of fibres. Never touch or disturb pipe lagging. Contact a licensed contractor immediately.
5. Boiler Flue and Airing Cupboard
The area around boilers and in airing cupboards was commonly lined with asbestos insulating board (AIB) for fire protection. The flue pipe from the boiler is also frequently wrapped in asbestos.
How to spot it : Flat, smooth boards lining the cupboard interior, or a cement-like material around the boiler flue.
Risk level : High. These materials can deteriorate with the heat cycling of the boiler.
6. Behind the Fuse Box
Older fuse boxes and electrical meter boards were typically mounted on asbestos insulating board (AIB) panels for fire resistance.
How to spot it : A flat, grey or white board behind or surrounding the electrical panel. Often painted over.
Risk level : High. AIB is a licensed-removal material. If you're having electrical work done, ensure your electrician is aware. Homes across Haringey , Waltham Forest , and Hackney commonly have this type of asbestos.
7. Soffit Boards and Fascias
The flat boards under the eaves of your roof (soffits) and along the roofline (fascias) were commonly made from asbestos cement.
How to spot it : Smooth, flat panels beneath the roof overhang. May be painted.
Risk level : Medium. Generally low risk while undamaged, but must be handled professionally during re-roofing or fascia replacement.
8. Behind Fireplaces and Hearth Surrounds
Asbestos was used as a fireproofing panel behind fireplaces and as rope seals around hearth surrounds. Many London properties — especially Victorian and Edwardian houses with later mid-century modifications — contain asbestos behind decorative fire surrounds.
How to spot it : Only visible when the fireplace surround is removed. Often found during renovation projects.
Risk level : Medium-high. The material may be degraded due to historical heat exposure.
9. Bath Panels
The panels surrounding bathtubs in 1960s-80s bathrooms were frequently made from asbestos insulating board or asbestos cement.
How to spot it : A rigid panel beneath the bath rim, typically painted. May sound hollow when tapped.
Risk level : Medium. Usually in good condition if undisturbed, but must be tested before bathroom renovation.
10. Window Sills and Putty
Some window sills were manufactured from asbestos cement, and the putty used to seal older windows sometimes contained asbestos.
How to spot it : Hard, cement-like window sills in properties from the asbestos era. Putty is typically the hardened sealant around glass panes.
Risk level : Low-medium. The asbestos is well-bound in cement, but replacement or sanding releases fibres.
What Should You Do Next?
If your London home was built before 2000, there's a realistic chance it contains asbestos in at least one of these locations. Here's your action plan:
- 1. Don't panic — asbestos in good condition is generally low risk
- 2. Don't disturb suspected materials — leave them alone
- 3. Book a professional survey — our asbestos survey service covers all London boroughs
- 4. Get a management plan — for materials that can remain in place
- 5. Arrange professional removal — for materials that are damaged or will be disturbed by planned work
We connect London homeowners with licensed, insured contractors who can survey your property and provide clear advice — typically within 24-48 hours. Get in touch today .