I'm a firm believer in customer satisfaction... So if a customer asks for an inside clean then I'll say yes, but charge at least double the outside price now... If you say no then they might find someone else to do it and then dump you.
As an example we cleaned the outside windows for a customer last Thursday... It's £65 every 7 / 8 weeks and doesn't take us long to do - so it's a really good regular customer... She asked if we can do insides, we didn't have time last Thursday so booked it in for tomorrow morning... All the windows are a bit of a pain, new Georgian type windows but it's an extra £130 and it keeps the customer happy... We clean the insides approx every 6 months for her so it's an extra £260 per year... If I said no I would be in danger of loosing a really good regular customer.
We do a lot of insides throughout a year, it's good additional income.
Andy
