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      CommentAuthorikimiki
    • CommentTimeOct 5th 2012 edited
     
    Dear GBF-ers,

    I have a fixed wooden-framed window that needs to be replaced sooner rather than later (interstitital condensation + frame is rotten at bottom).

    Given that it's fixed, I thought that I could save some money by building the replacement frame myself.

    After reading many of the posts here on GBF and consulting those whose judgment I hold in high regard, I've settled on the following shortlist for the glass unit:

    <> 4-16-4-16-4 or 4-20-4-20-4
    <> soft-coat Low E (Planitherm or similar)
    <> warm spacers
    <> Argon filling

    I contacted Pilkington directly and was told that I had to go through a middle man!

    So the question I have for you all is this:

    What suppliers are worth approaching for getting quotes?

    Thanks in advance!

    P.S. I'm in the Manchester area -- but happy to drive a bit; we have a Renault Espace so collection won't be a problem.
  1.  
    start with you local DG/ glazing merchant see what they'll quote m2 , they may well buy from a larger producer anyway. You could go direct to larger manifacturer if they'll deal with you.
    Most will be working on similar prices and discounts which will be relative to contract/buyer size.
    My local lot want 100m2+ for standard 3G units , An alli-window producer I know gets 3G toughened unit for less than £60m2 but he's buys a lot and been in the game for 20 years+
    cheers jim
    • CommentAuthorDarylP
    • CommentTimeOct 5th 2012
     
    Try CS Glazing in Buckley. I don't have their number at hand, but they are in the book.

    Cheers :-)
    :smile:
    • CommentAuthortony
    • CommentTimeOct 5th 2012
     
    Any local glass shop will be able to get it for you, get price first.
    • CommentAuthornikhoward
    • CommentTimeOct 5th 2012
     
    Posted By: tonyAny local glass shop will be able to get it for you, get price first.


    agree, even in little old kernow, there are two companies in my town that would do it
    •  
      CommentAuthorSteamyTea
    • CommentTimeOct 5th 2012 edited
     
    One near me too. Cheap as well when I have used them. And you get a weekend in St Ives if you time it right.

    Don't bother with argon filled though, wast of time and you may find that some manufacturers only offer a very limited warranty when self fitted into a wooden frame.
  2.  
    James, in your post above am I right in assuming that you would expect to pay £100.00+ m2 for standard triple glazed units. I require 2 no. 2m x 3.5m triple glazed units and 2 no. 2m x 1m triple glazed units, warm edge spacers, Argon filled and 8mm toughened (each pane). I know for a fact that these have been out sourced to Pilkingtons as they are too large for their own facility. I have been quoted £5858 + and am concerned that this appears to equate to approx. £325m2. Obviously these are not run of the mill units but any thoughts would be appreciated.
  3.  
    Cav8andrew, I've just had a couple of triple glazed units fitted as part of glazing my new build. They are 4.2m x 0.85m and each pane is 6mm thick. I was told when the installers broke one that they are around £400 pound a unit and they were manufactured direct by Pilkingtons.
  4.  
    Thanks Peter, interesting on two fronts, actual cost (am I right that that is a unit price not m2), which seems considerably cheaper, and the fact that 6mm glass has been specified ( I appreciate that in one dimension your units are smaller but in the other they are larger). The thickness is of interest as the weight of these units, near to half a ton, are causing installation issues, due to limited access. Can I ask how yours were installed, as we are heading down the route of requiring a crane (this cost is over and above the unit costs).
    Thanks, Andrew
    •  
      CommentAuthorikimiki
    • CommentTimeOct 6th 2012 edited
     
    Thanks for sharing everyone.

    So according to PeterS' installers, the ''at cost" price is £400 for 3.57 m2, or £112/m2.

    SteamyT -- may I ask why you wouldn't bother with Argon?
    • CommentAuthorjamesingram
    • CommentTimeOct 6th 2012 edited
     
    Be careful with that £400 a unit (£112m2) price mentioned above , as a small buyer you'll probably not get near it. for 6mm toughened in larger format .
    If your're the end client expect a large mark up on glass and seal unit as it's easy to break them during transport and installation and supplier/intaller will look to cover this , possibly with 100% mark up

    Andrew , 3G 8mm low-e toughened of the sizes your talking in going to be expensive as I'm sure your aware.
    my £100m2 was for small 3G standard units from a small supplier. See if you can get a few more quotes to compare
    Not got any personal experience of the large unit fitting , but the problem is getting enough men on the glass and still being able to manouver it into place , I'd imagine some kind of crane/hoist and suckion glass holding attachment would be required for that weight
  5.  
    Hi James, yes, as you say, there is clearly a price to pay for the 8mm requirement, both in financial and installation terms. Based on what has been discussed here I will follow up with more quotes but I suspect that unless the supplier have their own large scale manufacturing facilities most will be referred back to Pilkingtons and therefore to some extent the price is fixed at source. The method of installation discussed is exactly as you describe and for the reasons given. Thanks
    •  
      CommentAuthorikimiki
    • CommentTimeOct 6th 2012
     
    Yes, I don't expect to receive 'at cost' quotations, but it's important for me to know how much the middle man is trying to pocket.
    • CommentAuthorPaulJ
    • CommentTimeOct 6th 2012
     
    Maybe get a quote from Solaglas (Saint-Gobain) who do the Planitherm brand.
  6.  
    Based on what has been discussed here I certainly intend to look at a couple of alternatives.
  7.  
    Cav8andrew, yes around £400 a unit. I was told they were 140kg a unit. The first unit was carried by 2 installers round to the back of the house. The second broke when carrying it, it flexed an amazing amount before breaking. They then strapped lengths of 2x2 to the other one and lifted in to the frame. After it was in I discovered several marks in the soft coating and asked for it to be replaced. So the next time, the replacement units came in 4x2 frames and there were 3 installers. They carried the them easily and lifted them vertical, removed the 4x2 and there were no problems. They said they should have come in supporting timber frames the first time. They have got to replace another, not quite so large, unit next week which again has has marks on the soft coating. All these units were manufactured by Pilkingtons.
    •  
      CommentAuthorikimiki
    • CommentTimeOct 6th 2012
     
    Apparently, Solaglas has changed its name to Glassolutions.
  8.  
    Peter, thanks for that insight, as a comparison to your unit and based on available data, 24mm of toughened glass weighs 60kg per m2, therefore I am looking at 420kg per unit plus a figure for the edge detail seal. As James said the problem appears to be that there is just not enough grabable surface to get enough bodies around it, which is a great shame as we are now looking at the expensive crane option.
  9.  
    Posted By: Cav8andrewPeter, thanks for that insight, as a comparison to your unit and based on available data, 24mm of toughened glass weighs 60kg per m2, therefore I am looking at 420kg per unit plus a figure for the edge detail seal. As James said the problem appears to be that there is just not enough grabable surface to get enough bodies around it, which is a great shame as we are now looking at the expensive crane option.


    Can you not change the design to multiple smaller panes in order to avoid all this though and get more manageable panes? The bigger the individual panes the more expensive they are to buy, the higher the chance of damage in shipping and manoeuvring into position on site, the more stresses on seals and frames, the higher the cost of replacement if accidentally damaged after it is all in.....
  10.  
    Hi Willie, that is always an option but I suspect there would be little saving in cost in reality, but obviously an easier install. I imagine the panes could be reduced to 6mm but would still be toughened and there would be additional edge detailing. For it to make a reasonable difference the view from the rooms would, for me, be irrevocably compromised.
    In reality I am sure you are correct, I could save myself a huge amount of hassle in specifying smaller units but aesthetically I would always regret it. So ultimately I have only myself to blame for the extra cost and effort.
    • CommentAuthordjh
    • CommentTimeOct 8th 2012
     
    Posted By: PeterStarckagain has has marks on the soft coating. All these units were manufactured by Pilkingtons.

    Am I right in thinking that soft coats go on the inside faces? So these repeated problems are manufacturing faults?
    • CommentAuthorRobL
    • CommentTimeOct 8th 2012
     
    AFAIK all low-e coats (pilkington K is "hard", planitherm is "soft") go on face 3. Face 1 is outside, Face 4 is inside. Triple glazed units have low-e coatings on face 3 and 5. Fit the glass the wrong way round (low-e on face2) and solar gain is reduced.
    So yes, marks on the low-e coating must be manufacturing faults. Never seen that myself mind.

    Btw - I heard that Pilk wouldn't make soft-coat glass for small orders (small=less than new estate). Hence for most people here in UK the best glass is soft-low-e planitherm.
    • CommentAuthordjh
    • CommentTimeOct 8th 2012
     
    Yes, when I said inside face I meant a face internal to the unit rather than the one facing the room. Sorry for not being clear. Thanks for the confirmation.
    • CommentAuthorseascape
    • CommentTimeOct 8th 2012
     
    If you use multiple small panes don't you get more thermal bridges through the additional framing?
  11.  
    RobL, I've been doing some checking following your comments. I was told by the installer that because the spec. changed from 4/16/4/16/4 with K glass to 6/12/6/14/6 the coating was changed to soft. I asked the window company today and they said that was wrong and I had K glass. The marks were apparently there because the glass was too large to go through the cleaning machine and the panes were cleaned manually.
    • CommentAuthorRobinB
    • CommentTimeOct 10th 2012
     
    Posted By: seascapeIf you use multiple small panes don't you get more thermal bridges through the additional framing?


    Definitely a problem!
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