Derek
Vacuum, pre-spray and agitate all of upstairs, fill machine, then ready to rinse all upstairs. Get machine downstairs, spray, scrub stairs, have a ciggy, rinse. Then repeat for lounge/diner, hall and downstairs loo. 2 and a half hours.
Then 2 empty rooms, took a bit longer as I had lug everything up 2 flights.
Take keys back - 4 hours start to finish.
Don't forget it's empty, no poxy furniture to move, no kids and dogs getting in the way, no 20 questions from the customer.
Steve