Wed, 09 Sep 2026 00:09:03 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=257702#Comment_257702 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=257702#Comment_257702 Mon, 01 May 2017 12:52:24 +0100 newcastlerenovation Velfac and Allan Brothers are about same price - i got a special May offer from Velfac !
Olsen slightly more
Rationel quite a bit more - extra £4,000
We are looking at aluclad - u values are similar - we are retrofitting existing windows.
Any comments on quality, style, reliabilty/delivery times, ease of retrofitting, aftercare with these companies ? Is it worth spending more on the Olsen or Rationel windows ?
Thanks for any comments.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=257703#Comment_257703 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=257703#Comment_257703 Mon, 01 May 2017 14:24:45 +0100 tony
The new windows will likely have more frame so less glass

Some Velfac windows get over this by letting the sashes almost abbut the brickwork so can look odd with a thin gap which spiders love.

I like the best ali clad but they are more expensive but will not ever have other windows.

What are the U values of your walls and. Do plan to inprove there and how?

3g give much better sound exclusion.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=257704#Comment_257704 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=257704#Comment_257704 Mon, 01 May 2017 16:20:08 +0100 Rex
However, having seen quite a few different makes at various shows, I am always impressed with Velfac. Everything abut them seems to be very, very good. Which brings me to the but.......

I installed 3g windows with fibreglass (pultruded) frames. They have very thin sightlines so we have lots of glass. The 'but' is the shadow gap; like Velfac, looks great, especially at a show or showroom, and as mentioned above, the spiders and other creepy crawlies love that gap!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=258587#Comment_258587 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=258587#Comment_258587 Mon, 05 Jun 2017 09:38:44 +0100 revor https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=258606#Comment_258606 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=258606#Comment_258606 Mon, 05 Jun 2017 14:55:27 +0100 marsaday
Been trying to get through to the UK supplier, who is quite near where i live. Not in all day today :(

The website looks good, just need to speak to someone now.

Have you looked at http://www.slideandfold.co.uk/index.html

I am also going to get a quote from them. They will be much cheaper than your list, but quality may be not as good.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=261878#Comment_261878 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=15075&Focus=261878#Comment_261878 Thu, 05 Oct 2017 20:19:49 +0100 JonnyJW