Kev
By me they could be done for as low as £20 - £25. I am not joking, i am looked on to be to dear compared to some, One company i tendered against at 25p per window to see what happened & guess what i didnt get any.
Gary
25p a window??? I was charging that 25 years ago
Honestly, that was my starting point when I first began.
I care not a jot for those that are stupid enough and totally lacking in business savvy to go in at ridiculously low prices (not a dig at you Gary, I do understand the point you are making, more a point at those you priced against)
My own price would be somewhere around £40-45 for the outside, and only that because I am WFP.
Inside difficult to judge without being there, can a small ladder with safety devices be used? Would it have to be done with trad & pole?
The secondary double glazing part is easy enough to work out...providing you can easily remove the glazing, and after a few years that is never guaranteed, then the inside for me is 4 times the cost you would normally charge for an internal window.
It's it's 3 sides, not one (of course) and you also have to allow for taking out, turning to clean each side and putting them back in.
So depending on how difficult it would be to get that stairwell done My price for the inside would be approx twice what I would charge for the outside.
Total price would possibly be around the £140 mark.
Time wise the outside (done WFP) would be 30 minutes or so (on a repeat clean that is) and off a ladder a darn sight longer.
And yes, I would absolutely expect to be able to earn £45 in 30 minutes on commercial offices like these, at a minimum to be honest.
If whoever is concerned with getting prices in at those offices wants to get lots of quotes in and chose the cheapest, then it will get done for pennies, because there is always someone out there that will do it cheaper than the last person.
Don't get drawn into seeing how cheap you can do it.
Imagine you are still working off ladders and price accordingly.
Ian