I'm in the states, so that may disqualify my opinion, but if I were you and considering having lighting be part of the PM offering, I couldn't do it in good conscience offering to replace fluorescent and HID lamps and ballasts. I'd offer to at least retrofit any non-working fixtures (or those with dead lamps) to LED. I couldn't sleep at night replacing old fluorescent and HID crap... I know some contractors might enjoy the steady paycheck, but they do so serving their best interests, not their customers'.