[Darren] According to the online dictionaries I just consulted, "escalate" is a back-formation from "escalator".

[rab] How many windows do you want replacing? I have a ballpark figure of £5K for my flat, which would be 4 windows replacing, including patio doors. But then I am in the London area.

[Projoy] By that token, anyone outside London should be able to have it done for £1.50, then.

[Raal] Nice to see a new face here. You look a bit like Raak, if I may say so. Anyway, that's interesting because the ones I checked showed the reverse!

[Projoy] We have seven windows in total: three of them quite large (about 2m²), two medium sized (1.25m²) and two wee ones (less than 1m² apiece). We're not in a listed building, or a conservation area, thank goodness, so they can be made out of anything we like, as long as we respect the astragals etc. 5K was the kind of number that was floating around my mind, for some reason, but from what you say it might be a bit more than that.

I paid 3.5k a few years ago for a ground floor flat; four large windows (3+m² and one medium (1.25m²) plus a front door and a back door. It's the doors that add a lot to the expense; several hundred pounds a pop. And of course small windows are disproportionately costly for their size. I'd hope your requirements would be cheaper than Projoy's - I bet patio doors incur a double expense, once for being doors, and once for being large windows. I admit, I'd still anticipate a cost of well over 4k.

Do you have to do them all in one go? I know there are 'do the front, get the back for free' offers every now and again... but don't panic, that's the main thing.

I spose not - but all but two of them really need to be done if not by the winter then next summer at the latest, so we may as well have them all done in one go. We'll try not to panic - I'm just not keen on the whole "salesman" thing...

My regular customers include a window salesman, and a window surveyor (goes round after the salesman has done his bit and actually measure the windows etc). Unfortunately, the latter is on holiday this week, but I'll check with the former this evening if I remember. He's an ex-salesman as of last year, so should be honest about it. From conversations with him, I can advise you to beware of all the "pay for the front, get the back free" deals etc, as those sort of companies will be ripping you off anyway. The salesmen are amongst the most highly-trained, aggressive-style of any trade. You do not get a bargain from them, even though you will think you do. Some of the techniques he explained to me were quite scarily akin to military interrogation. I'll let you know what he says either tonight, or tomorrow morning.
There is another way, though. If they are standard sizes, the window units themselves do not cost much (think 10% od what you get charged) and a pair of competent builders/handymen should be able to fit them.

[rab] Everest claim to be the best, but are probably the most expensive. They did six floor-to-ceiling windows and a door for me years back for 4k. How long do you plan staying at the address? You don't want something that will need replacing again in less than 20 years.

I've spoken to my mate, who used to work for StayBrite. He says there's a huge window-making company in Edinburgh that the likes of Staybrite buy their windows from. He'll try and track down the name tonight. He also reckons that, if there are no complex openings required etc, that you "could" get it done for £2K-ish. His advice is find a reputable window-fitter, not a big national company - you get the same windows, a non sales-driven company, and half the price. More to follow when I get more info.