Good DIY knows its limits.
No online guide can assess every site. Work involving live services, gas, structure, heights, hazardous materials or regulated systems may require a licensed professional.
Electricity and gas
Do not open, alter or test live or regulated systems unless you are qualified and legally permitted to do so.
Heights and roofs
Falls are a major risk. Avoid wet, steep, brittle or unfamiliar roofs and use professional access where needed.
Structure and excavation
Unexpected movement, cracking, unstable soil, retaining structures and load-bearing changes need competent assessment.
Hazardous materials
Older homes may contain asbestos, lead paint or other hazards. Do not disturb suspect material before proper identification.
Water near electricity
Keep people away, avoid touching wet electrical equipment and use the appropriate emergency or licensed service when isolation is uncertain.
Stop when conditions change
Unexpected odours, movement, heat, sparks, bulging ceilings, contaminated water or unstable access are reasons to secure the area and get help.