Dog walkers can charge around £13 and £20+ an hour, depending on location and demand.
Professional dog walkers can earn from £10 per hour, up to £20 based on location and demand in your area. It is essential that you set your rates according to your area, otherwise you could loose business to your competitors. Call around other dog walking businesses to find out what their rates our.
It's also possible to combine a dog walking business with other pet businesses, such as dog sitting and domestic boarding. If you do combine a number of services, please check that you have all the relevant insurances for each type of service.