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What(and remember I'm a window cleaner) is the formula for estimatin square footage on a roof, taking into account pitch, hips , valley's dormers ect. The simplest answer wins my undying gratitude...if it works. Gav

I hope this question isn't too generalised and I'm sure there's many variables, but as I was going through the Delco price guide trying to write my own to get started with(I'm sure most things will need adjusting as I go on and find my feet) I came down to the part where they priced fence...

The more I read, the worse my head hurts. After reading through many many posts on this and the other sites I am left wondering what a cold water 3500 psi machine is good for, the general consensus seems to be it's too much for a deck or fence and not enough for a concrete drive. Now one thing I...

What are the main advantages of using an x-jet as opposed to the detergent injection system on say an excell 3500. Gav