Need skilled handyman to repair a bike and tune gears

I’m looking for a reliable person to repair my bicycle. It’s a road bike with some shifting issues and creaking brakes. The rear derailleur sometimes hesitates, the chain wears quickly, and the front brake squeals. I’d like a full tune-up: adjust gears, true the wheels if needed, check brakes, lubricate parts, and verify tire pressure. Please bring or confirm you have the basic bike tools and spare parts if necessary. I prefer work done on a same-day appointment if possible and would appreciate a clear estimate before starting. I’m located in central London and can accommodate an afternoon slot.