Asbestos in Garages and Older Homes: What to Check Before You Drill, Convert or Fit Out a Home Gym

Home gyms often start with a drill: a rack bolted to a wall, anchor points in a ceiling, a garage wall lined for insulation or a partition built to make space. In a building constructed or refurbished before 2000, that first hole can disturb asbestos. This article summarises guidance from the Health and Safety Executive (HSE), which covers Great Britain, and the Health and Safety Executive for Northern Ireland (HSENI), which advises householders in Northern Ireland.

Why it matters

The HSE describes asbestos as tiny, invisible fibres that can be breathed in or rest on clothes. It says asbestos causes the most work-related deaths in Great Britain, with around 5,000 people dying every year from asbestos-related diseases, illnesses that typically take decades to develop and cannot be cured. It was used in many industries and buildings until it was banned in 1999. The HSE notes that you cannot identify it by looking at it.

The same guidance offers a reassurance that shapes the sensible approach. When asbestos is in good condition and not disturbed, the risk of exposure is extremely low. The danger arises when it is damaged or disturbed, and the HSE lists activities such as drilling, refurbishment and demolition as ways fibres can be released.

Which buildings and where

The HSE’s advice on whether asbestos is present is direct: if a building was built or refurbished before 2000, assume there is asbestos in it. Buildings from after 2000 are unlikely to contain it. For the outbuildings and garages that many home gyms occupy, the HSE lists roof coverings made of cement sheeting, wall panels and soffits among the places asbestos-containing materials are commonly found.

Its diagrams of residential properties list further examples. On the outside, these include asbestos cement soffits and fascias, roofing felt, asbestos cement roof tiles and slates, asbestos cement panels, profiled asbestos cement sheeting, and gutters and downpipes. Inside, they include textured decorative coating, for example Artex, asbestos insulating board ceiling tiles and partition walls, pipe lagging, and asbestos cement bath panels or water tanks. If a garage has a cement-sheet roof, textured ceiling or boarded partition and dates from before 2000, treat it as possibly containing asbestos until proven otherwise.

Roofs: a separate hazard

The HSE specifically cautions against walking on fragile material, giving asbestos cement roofs as an example. That applies to anyone thinking of accessing a garage roof, for instance to fit ventilation, run cabling or install a rooflight for a gym. If the roof might be asbestos cement, get professional advice before going near it.

What to do if you suspect asbestos

The HSE’s FAQ for homeowners and DIY says:

• Do not try to repair or remove any asbestos materials yourself if you have not had training for non-licensed asbestos work. Seek advice from your local authority’s environmental health officer.
• If materials are in good condition and unlikely to be damaged, it is often best to leave them undisturbed, and to inspect them regularly.
• Sprayed asbestos coatings, asbestos lagging or insulation, and asbestos insulating board should only be removed by a contractor licensed by the HSE.
• Asbestos waste cannot be mixed with household rubbish. It must be disposed of as hazardous waste through authorised facilities, and your local authority can advise.
• To identify a material, use an analyst accredited by UKAS.
• Tell contractors about any known asbestos before they start work in your home.

The HSE also describes two types of survey. A management survey, done by a competent assessor, locates asbestos and assesses its condition. A refurbishment survey is required before any work that disturbs the building fabric. Those terms come from guidance aimed at building owners with duties to manage asbestos, so householders should treat them as a sign of the level of care professionals apply, not as a checklist to follow themselves.

Northern Ireland

HSENI runs an Asbestos Advisory Service that provides independent information and best practice primarily for householders seeking guidance on dealing with asbestos at home. It says you cannot identify asbestos visually and that sampling by accredited laboratories is needed. It also covers leaving undisturbed material in place versus removal, licensed contractors under the Control of Asbestos Regulations (Northern Ireland) 2012, and treating waste as hazardous, and it emphasises that appropriate training is mandatory for all asbestos work. Northern Ireland readers should use HSENI’s service in the first instance rather than relying on the Great Britain pages.

A practical pre-project routine

1. Date the building. If it was built or refurbished before 2000, assume asbestos may be present.
2. Look for the usual suspects. Cement-sheet roofs, wall panels, soffits, textured coatings, boards and lagging.
3. Choose fixings that avoid suspect surfaces. If you cannot rule out asbestos behind a wall or ceiling, do not drill it until a professional has advised.
4. Get a sample tested by a UKAS-accredited analyst if you need to know, rather than guessing.
5. Involve the right person. Your local authority’s environmental health officer is the HSE’s suggested first contact for suspected material in a home.
6. Plan disposal. Never put suspect waste in the general household bin.

Delaying a project to find out costs little compared with disturbing material that cannot be undone. If the answer is that asbestos is present but undamaged, the HSE’s own message is that leaving it alone is often the best course, and you may be able to plan the gym around it.

The bottom line

If your garage, outbuilding or home was built or refurbished before 2000, assume asbestos could be present and do not drill, cut or sand suspect materials until you know. The HSE says undisturbed asbestos in good condition carries an extremely low risk, so leaving it alone is often the best option, but untrained people should not try to repair or remove it. In Great Britain start with your local authority’s environmental health officer and the HSE’s homeowner guidance; in Northern Ireland use HSENI’s Asbestos Advisory Service.

Sources

• Health and Safety Executive, “Asbestos: introduction”
• Health and Safety Executive, “The duty to manage asbestos in buildings: Find out if asbestos could be present in your building”
• Health and Safety Executive, “Diagrams showing where asbestos can occur in buildings”
• Health and Safety Executive, “Asbestos – FAQs”
• HSE for Northern Ireland, “Asbestos Advisory Service”