20 miles either side is okay, if the property is worth driving to. I travel more than I used to 3 years ago, I have made that an acceptable part of my business plan. Personally I have to start questioning things once its over 20 miles, but Id travel twice that if the job was viable.
How far would you tolerate driving Perfect Windows to do a £100 job that took 2 hours?
10 miles, 20 miles, 30 miles, 40 miles?
Ive grown sick of doing estate properties, theres plenty to be said for them, but put me in the grounds of a plush estate house with all the trappings that go with it and Im in my element, I take more pride in the job, I feel relaxed working, I get a better sense of achievement and pride. To get those places though you have to be prepared to put in plenty of footwork in securing them and the chances are you're going to have to do more miles to reach them.