I'm looking for a reliable locksmith to help with a door lock problem at my home. The front door lock is stiff and sometimes won't turn, and there may be a misalignment causing the latch to miss. I need someone who can assess the situation, lubricate if possible, and fix or replace the lock promptly. Preference for someone experienced with residential doors and a quick turnaround. Please indicate your availability, any materials or parts you'll bring, and an estimate for labor. I value clear communication and safety.