Lead Paint in Older Homes: What to Know Before Decorating
General guidance on the possibility of lead paint in older UK homes, why dry sanding is a concern, and sensible precautions before preparing surfaces.
Many UK homes built before the later part of the twentieth century were decorated with paints containing lead. Lead-based paints were widely used for decades, particularly on woodwork and metal, before being phased out for domestic use. In a well-maintained home, intact lead paint is generally not an immediate concern. The risks arise when old paint is disturbed, because that creates dust and flakes.
This article is general information, not professional advice.
Which homes are most likely to be affected?
Older properties, especially those built or decorated before the 1960s and 1970s, are more likely to have layers of lead-containing paint underneath newer coats. Doors, skirting boards, window frames, radiators and metalwork are common places. Newer paint on top does not necessarily mean the old layers are gone.
You cannot tell by looking. A test kit or a laboratory analysis can confirm, and a professional can advise on testing if you are concerned.
Why preparation work matters
The main risk comes from:
- Dry sanding, which creates fine dust that can be inhaled or settle on surfaces
- Heat guns and burning off, which can release fumes
- Dry scraping of flaking paint, which spreads chips
- Demolition or stripping that creates dust and debris
Children and pregnant people are generally considered more vulnerable to lead exposure, so extra care is sensible if they live in or visit the home.
Sensible precautions
- Avoid dry sanding old paint. If sanding is necessary, use wet methods and keep surfaces damp.
- Do not use heat guns or open flames on paint that may contain lead.
- Keep children and pets out of the working area.
- Contain dust. Use plastic sheeting, seal doorways and keep windows open to the outside where practical.
- Use appropriate protective equipment. Disposable overalls and correctly rated respiratory protection are sometimes advised for higher-risk work, but ordinary paper masks are not suitable for lead dust.
- Clean wet. Use damp wipes and a vacuum with appropriate filtration rather than dry sweeping.
- Dispose of waste carefully. Contact your local council about how to dispose of potentially contaminated debris.
- Wash hands and clothes after work.
When to call a professional
Consider specialist help if:
- Paint is flaking or crumbling over large areas
- You plan major stripping or demolition
- You are pregnant or have young children at home
- Testing shows lead and you are unsure how to proceed
Many decorators with experience in older homes are familiar with safer working methods. Ask about it directly when requesting quotes. In a Compito request, note the age of the property and that you are concerned about old paint, so providers can describe how they would approach it.
Alternatives to removing paint
If the existing paint is firm and intact, it is often safest to leave it in place and decorate over it after cleaning and light, careful preparation, rather than stripping. Over-coating with a suitable system can encapsulate old layers. A decorator can advise on which approach suits each surface. For general woodwork preparation, see how to prepare woodwork for painting.
Special considerations
Rented homes
Check with the landlord or agent before undertaking any preparation work on old paint. They may have responsibilities regarding safety and repairs.
Exterior work
Dust and flakes from external surfaces can fall into gardens and soil. Use drop sheets and clear up carefully, particularly where children play or food is grown.
Wallpaper and plaster
Lead is more of a concern on gloss-painted woodwork and metal than on wall plaster, but old paint layers on walls may still contain it. Wet stripping of wallpaper is generally a lower-dust method. See how to remove old wallpaper.
How to approach a typical older-home job
Consider a 1930s house where the woodwork has been repainted many times. A sensible approach before any decorating is:
- Look at the condition. Is the paint sound and well adhered, or flaking and crazed?
- Decide whether disturbing it is necessary. If not, clean and recoat after light, wet keying.
- Test if you plan significant stripping. Use a kit or a laboratory test, and treat results as a guide to method.
- Plan containment. Seal off the room, cover floors and furniture and keep the area closed to others.
- Work wet. Use damp scraping and wet sanding, and keep surfaces misted rather than dry.
- Clean up properly. Use damp wipes and a suitable vacuum, and wash hands, hair and clothes afterwards.
Test kits and what they tell you
Home kits can give a quick positive or negative on a small spot, but they are not always reliable on layered or coloured paints. Laboratory analysis of a small sample can give a more definite answer. A positive result is not a reason to panic, but it is a reason to adapt your method.
Common questions about specific work
Window frames and doors
These are among the most likely places for old lead-based paint, and also the places where friction creates dust. Avoid sanding dry and be careful with sash windows that rub as they are opened.
Skirting boards
Low-level surfaces collect dust and chips, so protect floors and keep children away from the area until it is cleaned.
Exteriors
Flakes and dust can fall onto soil and paths. Use drop sheets, avoid pressure washing without containing the water and clear debris carefully.
What a decorator should be able to tell you
A decorator working on older homes should be able to describe how they plan to control dust, what protective equipment they use and how they dispose of waste. Ask them to explain it in plain terms. If they say they will just dry sand and brush it off, that is a reason to ask more questions or consider other providers.
Where to find official guidance
Your local council and public health bodies publish guidance on lead and older housing. If you are pregnant, have young children or are concerned about exposure, your GP or health visitor can advise on what to do.
Frequently asked questions
Should I test my paint for lead?
If your home is older and you plan significant preparation work, testing is a reasonable step. Kits are available, but laboratory testing is more reliable.
Is intact old paint dangerous?
Generally the risk is low while it is intact and undisturbed, but it can become a hazard when it deteriorates or is disturbed. Keep an eye on chipping paint, particularly where children can reach.
Can I paint straight over old paint?
Usually, after cleaning and gentle preparation, yes. Avoid methods that generate dust, and seek advice if the paint is in poor condition.
Is it safe to live in the house while work is done?
Usually, with care. Keep children and pregnant people out of the work area, contain dust, clean wet and keep doors closed. For big stripping jobs, staying elsewhere for a few days can be more comfortable.