Use a plunger on the affected drain
Remove the drain stopper or cover (if applicable) and clear visible debris
Pour boiling water carefully into the drain (only if the drain is not connected to materials that can be damaged)
Use a drain auger (snake) and rotate to break up clogs
Try a wet/dry shop vacuum to pull out the blockage
Use a drain brush or wire hanger to remove hair and debris near the opening
For sinks: remove and clean the P-trap by placing a bucket underneath and reinstalling securely
For toilets: use a toilet auger or plunger designed for toilets
Avoid chemical drain cleaners if the clog is stubborn; use mechanical methods first
Run hot water after clearing to confirm proper drainage
If water backs up, multiple fixtures drain poorly, or the clog returns, call a licensed plumber