New windows

[Alexa26]

How much is a reasonable price for replacing wood framed windows in a 1900 mid terrace?

All windows are flat and ground floor;

Front window is W112 x H177
Kitchen window is W153 x H107
Bathroom window is W120 x H107

Also wondering what a reasonable price for a very tall composite front door would be, W81 x H240

Only asking as quotes so far have varied by £4000 for total and a little confused as to why such a variation!

 

[Alexa26]

that looks good pricewise but do they cover east yorks or just lancashire?