Identify the surface and follow the current instructions for your exact products. Do not sand or strip uncertain old coatings. Read the safety guide before disturbing materials.
Unknown material is a reason to pause
Older paint can contain lead, and some textured coatings and building products can contain asbestos. Appearance alone is not a reliable identification method. Do not sand, drill, scrape, burn or strip uncertain material to find out what it is.
Arrange competent assessment and, where needed, appropriate testing before disturbance. A respirator does not turn uncontrolled hazardous work into safe DIY. Some asbestos work requires licensed contractors, and other work still requires specific training and controls.
Control exposure at the source
For safe materials, choose a method that minimises dust and use extraction and suitable protection for the task. Tight fitting respiratory protection depends on the correct type and fit; facial hair can prevent an effective seal. Keep other occupants, pets and belongings out of the work area.
Read the safety data for cleaners, fillers, primers and paints. Maintain the specified ventilation, keep ignition sources away from flammable products and protect eyes and skin. Never mix cleaning chemicals. Low odour is not proof of no risk.
Make the work physically safe
Use equipment designed for the height and task. Keep access stable, avoid overreaching and never improvise with stacked furniture. A stairwell or exterior elevation can be a professional access job even when the painting looks simple.
Do not remove or work on electrical fittings unless competent to do so with proper isolation. Keep liquids away from electrical equipment. Stop if a ceiling is sagging, timber is structurally decayed or water is entering near electrics.
Common mistakes
- Assuming old paint is safe because it is a familiar colour.
- Dry sweeping hazardous dust into the air.
- Using a basic dust mask as a substitute for assessment and controls.
If a material, access method or product hazard is uncertain, stop and get the relevant competent advice. These guides are general education, not a site risk assessment.
Sources & further reading
Original general guidance from Aethos, informed by the resources below. These references cover relevant safety, materials or techniques, not a specification for your property. Product examples are not paid recommendations.
- HSE: lead in construction (opens in a new tab)
Why disturbing older lead paint requires a planned, controlled approach.
- HSE: asbestos guidance (opens in a new tab)
Identifying potential asbestos risks before disturbing building materials.
- SPAB: limewash (opens in a new tab)
Traditional finishes, suitable substrates and caring for older buildings.