Where do you live?
Honestly not working in minus temperatures isn't an option for me.
2 years ago we had 8 weeks solid of no warmer than -3 during the day.
Can you have 8 weeks off?
The reason I still work in - temps is two fold;
1. I like to still be earning, and not sitting at home watching Jeremy Kyle,
2. I like to keep my customers happy with a regular service.
I have lots of customers that appreciate that I come round rain hail or shine and don't sit at home for weeks on end in the winter, especially when people want their houses looking the best for big Christmas parties and family get togethers etc.
I've always ran my business this way and am extremely happy this way.
Jonny.