Need expert to unclog a kitchen sink drain urgently

I'm looking for a skilled tradesperson to debouch our kitchen sink and clear a stubborn clog that's been giving us trouble for a few days. The installation area is a standard 1.5 bowl sink with a disposal unit. Please bring proper drain snakes, a plunger, and a camera if available to inspect the pipes. We prefer a quiet, reliable visit on a weekday afternoon. If you can identify the blockage quickly and provide a short estimate for any potential pipework or replacement parts, that would be great. Access is inside the back alley; please confirm any parking or access needs before arrival.