Thank you everyone - this has all been really informative and helpful
Our windows don't really
need to be replaced although there are patches of slightly soggy wood on a couple of the north facing ones - OH is very handy and can cut these bits out and replace, once he gets the time. All windows here were made by a local joiner and you can see their coverage just driving around - all the old windows are clearly theirs for a radius of a good few miles. They went bust about 10 years ago. We had our south facing windows replaced by them about 16 years ago, with single glazed, custom made exact copies. The north side windows seemed fine. We also had them make windows with double glazing in when the granny flat was converted - these are a problem because they are so heavy it's impossible to open and close them. We suspect that they used inadequate weights but we haven't had the oomph to investigate further, especially as the flat is rarely used now.
We were looking into renewables as a way to reduce our energy bills, but we came to the conclusion that the most important change we could make would be windows which are double glazed, at least on the north side, and properly sealed. When the wind comes from anywhere between NW and E it whistles in around all the windows, as well as through the cat flap and even under the skirting boards. So I suppose when I said that painting was a huge chore - which it is and currently not coming high enough up the priority list to get done - that is perhaps me trying to justify getting rid of the draughts by putting in sealed windows. I definitely prefer the wooden ones to look at, but as several of you have said, being weatherproof is a priority.
So I have looked at the URLs you have provided - some interesting products there, thank you. The best company I have found so far is down in Cheshire, so I don't know if they would do work up here..... And then there's the cost
i have alot of experience in restoring windows ive been doing just that for the last 12 yrs. upvc is horrible stuff. it degrades over time releasinga gas which according to the conservation officer at cornwall council could be as harmful as asbestos in the future. i have removed enough of these travesties to know they just do not last. theyve only been around for about 30 yrs so have not passed the test of time. they are environmentally unfriendly in their construction and their disposal. they are a throw away item.
i appreciate that repainting windows can be a chore but done properly should last 5 years between repainting easily. most will go to 7 or 8 yrs. there is a much better range of paint on the markets nowadays that offer long working life. indeed some paints are 'self cleaning'
i have repaired and restored windows that are over 200 years old. with regular maintenance, good fitting procedures and a regular painting routine wooden windows should outlive the owners!!
We have used International paint before but it only lasted a bit longer than ordinary stuff. Which make would you recommend?
I am interested in the toxic problems from degrading uPVC - do you know more details DitW?