Lin

I'm looking at triple glazed windows. We have about 41m2 of windows/doors including a 5m slider which I think is accounting for the most variance in the quotes This thread is a year old and i wonder what allowances should be made for inflation. I'm getting intial quotes from Rational, Ideal Combi, norssken about 440 to 600 or so per m2 for alu clad, not including fitting etc includes 3 exterior doors, french window and the slider. More quotes coming. Ideal combi is the cheapest so far because of the spec/price of the slider. Has anybody got any more current prices to add ? Any suggestions please message me.

That is a huge discount

Its the not wanting to seem too desperate ( and then risk getting higher prices) vs getting the job done

I submitted a list with opening sizes. Since posting I have had one quote come back !

I've asked for a fair few window quotes and i thought I would get them within a couple of days or so. That's not happening. Is this usual ? how long did you have to wait ?

We are converting a building that has catnic lintel already in situ over a wide opening that will become bifold doors The lintel is uninsulated. Is there much point trying to squirt insulating foam through the holes (there is a regular pattern of holes on inner side of the lintel) to try to fill it up the hollow with an insulator ?? Thanks

Interesting that the vent can be in the garden rather than penetrating the roof etc and have an internal durgo. Do these regs apply the same way to septic tanks (rather than town sewers) also ??

Even though the floor is not level like a pond is, it's not that bad smoothwise. Putting the PIR down and letting the screed do the levelling by being deeper in areas and thinner in others should be OK ?? ; at least that is what the contractor seemed to be happy with

Thanks Nick for your reply Yeah it did just occur to me that the more expensive quote without fitting could have more dense spacing because we were considering ASHP at the time Does anybody do independant designs that will take into account our insulation of the whole building etc that we can then get various suppliers to price for the design so they are all equal as such ? Also it did occur to me after reading another thread that maybe even though we are likely going down the gas route, that we should put more pipe in the ground in case we change heat source in years to come so it can still function at a lower temp ? Is PEX not better than pex-al-pex?

Sounds like fun; except we have to put PIR on top of the concrete and it won't lay flat with random bits of polystyrene unless they are perfectly sculpted ? ?? Either you are having a laugh or I must be missing something

I had a supply quote a few weeks ago from one of the big boys of UFH, for a screed based system. I have since had a quote from a firm that do the whole thing of fitting dpc, insulation, laying UFH and pouring the liquid screed. The quote is itemised for each stage. For the UFH only , the cost of supply and laying the pipe, mainfold, and controllers is cheaper then just the supply of the big brand one. Obviously quality is important, but where do i start ? Any suggestions for unravelling the quality / price / sensible choice conundrum and what brands are good ... what to look for etc Pipe is the most important I guess; the bit that you can't get to very easily should it spring a leak.

It sort of swirls round. That sounds tricky/ skillful to do ?

Our concrete floor is not level. The screeder said the liquid screed would be between 45 to 80mm

Not sure this is the right place for this question..... Can anyone point me in the right direction to find out how to understand or make a basic calculation for the heat requirement for individual bedrooms. Just an idea not 100% accurate My blood pressure is rising just thinking about having to do this. What sort of professional should know how to do this if I give up.

We're in wiltshire

Not sure if this is the best forum for this... We were thinking of having all services go through into the utility room of the house, meters on outside. Is there any good reason not to have these connections go through the wall in close proximity ?? ... could be reasons of safety/regs, aesthetics, convenience or anything else Can they share a trench?

I get what you mean. No regrets about spurning gas then ?????

@joe90 How did you decided to have a 60mm screed depth? rather than a thinner screed (cheaper) that is still possible Would you have gone deeper than 60mm for any reason if cost was not issue ?

Thanks for your experience of screeds. It's prospect of cracking that concerns me. Want a rock solid finish. If that means having 75mm sand cement then I would go for that if it's more reliable. It sounds like you have confidence in screeds.

A while I guess. Hard to say.

If you mean thermal capacity stuff I wouldn't know where to start ! I can work out height differences though, just about.

Never say never, but it's a time and money thing The UFH where we live is on 50mm rockwool board. So 75mm PIR is definately an improvement. !

The thought of not having some kind of thermal buffer does irk me

Hi; gas or ASHP. Prob gas

Thanks for the welcomes and really helpful replies everyone. Very helpful summary Mike and JSH I am interested in tha sunamp concept being married up with a PV system. The fog is lifting.