Need locksmith for emergency door lock replacement and reinstall

I'm looking for a reliable locksmith to help with a door lock issue at my home in the UK. The interior door lock stuck and the key won’t turn, and I’d like a quick assessment and a replacement if needed. Please include options for standard cylinder lock vs. more secure anti-snap or smart lock alternatives. Ideally, the technician can arrive this afternoon or tomorrow morning. I value clear pricing, a written quote before starting work, and leaving the area clean after the job. If possible, please bring necessary tools to avoid multiple visits. No structural drilling unless absolutely required.