yeh thats what i did practically woody.all tops got changed over at once,a few ground floors then slowly started converting nearly all ground floor windows.
the only custies i didnt change over was a block of granny flats which i recently converted a few weeks ago.
the only ladder work i do now is the odd flat roof and for climbing the odd gate.sometimes i use them for cleaning conservatory roofs but other than that my feet are on the ground.
itll be the best move you could ever make for your business although you might not think so during the first few weeks at times!!

regards
dazmond