I realise that a pro will do it quicker. However I am doing this while running a motel & 2 small children. If my wife goes out I am answering phones and checking people in too. sometimes I might only get a couple of hours in.
I largely avoid busy periods and have rarely lost more than $200 with the room out. Factor in the cost of tradesman.....probably $500 per day and I think I am way ahead. Plus things are done the way I want it.
Also we are a leasehold, so costs have to be kept down. I've seen too many leasehold owners who won't invest in their business and I won't be among them.