Working safe is broadly based on common sense, regardless there are rules, below are some of the essentials 1. Roof Access: Extension ladders must extend at least 3 feet above the roof and be secured top and bottom. 2. Electrical: Do not use frayed extension cords, damaged plugs, or exposed wiring. Use GFCI protection when required. 3. Lockout / Tagout: Shut off and verify power and gas before working on units. Never trust a breaker label. 4. Electrical panels must be clear and not blocked by anything. 5. Sharp Edges: Wear cut-resistant gloves when handling ductwork, sheet metal, or cabinets.(I’ve seen people get cut really bad from sheet metal, gloves are always recommended) 6. Confined Spaces: Attics and mechanical rooms need adequate lighting, ventilation, and safe access before entry. 7. Lifting: Use proper lifting technique or team lifts for compressors, furnaces, and condensers. If it’s awkward, don’t solo it. (Don’t be a superhero, work is important but so is your health) 8. Housekeeping: Keep cords, hoses, and tools off walkways to prevent trips and falls. (Clean jobsite! We aren’t electricians! Well sort of…) 9. Weather Conditions: No roof work during high winds, rain, ice, or lightning. 10. PPE: Safety glasses, gloves, and proper footwear are mandatory, not optional.