London is enormous, so the real value is a photographer who can stitch a few signature backdrops, from Westminster to a quiet mews, into one tight loop.
Our pick
Big Ben from Westminster Bridge and the red phone boxes near the Houses of Parliament are the obvious frames, but the pastel houses of Notting Hill and the river skyline from the South Bank give the set range. A photographer who works London knows when the bridges thin out and where the morning light is kindest. They plan the route so you aren't crossing the city twice. In a city this size, the routing alone earns the booking.
If our pick doesn't fit
Covers more ground at a lower price but has fewer reviews than the top pick.
A longer evening walk through illuminated landmarks, ideal if you prefer moody low-light portraits over daytime shots.