we have been using a gutter vac for 3 years now and not one problem or broken gutter in that time, its earnt us a fortune! and this year I have more booked in from my wc customer base than ever before! just got the new vac and upgraded the rest of the kit.
Going to be doing my own house this sat, in the mean time im going to write a quick letter to the other houses in my street telling them all about it and inviting them to come and see the system in use at my own house and to get a quote, I did the same thing a few years ago while jet washing my block pave driveway, I had a small crown gather to watch me and one of my team and from that booked nearly £3000 worth of work and got a few new wc customers at the same time!
Remember to think of your business as a business not just a job!