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    Silicone or mastic - uPVC frames?

    Silicone every time, always use low modulus neutral curing silicone, mastic is a generic term used to describe (usually) cheap builders quality mastic with very little elasticity that will invariably crack in a short time and not bond with the UPC
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    Help! no DPC under french/patio doors

    Im assuming you're meaning the internal threshold by the door cill. The underlay and flooring can go right up against the door cill but will probably need something to support it in case someone steps on it and I assume the doors are fitted level with the internal face of the outside brick...
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    Help! no DPC under french/patio doors

    The celotex is fine, it's there to prevent damp transfer and to insulate. If you can remove the concrete, I'm assuming it's bridging the cavity on top of the celotex. Otherwise you might be better drylining the wall with a membrane, battens and plasterboard. A bit drastic but apart from losing...
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    How do pre-glazed UPVC Conservatory Panels fot together?

    Need more info really ans ideally some photos then I might be able to advise
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    UPVC patio door nightmare! (damp proof failed?)

    All I can say, having seen the photos is survey cock up and cowboys. Take legal advice and have someone with professional experience with you when they come around to talk and most important...get it all in writing. Good luck
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    Adjusting height of UPVC Door

    Adjusting te hinges is not the way to simply raise the door. Simply remove the entire door and frame, run a jigsaw or similar along the grooves on the top of the door to reduce the frame height and refit. Once you've messed around with the hinges, you will have problems getting them back in the...
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    Bi fold doors

    I can help with top quality Ali or PVC bifolds if you're interested
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    Advisable width for 3 piece bifold door

    Hi, if you want the very dearest, other than commercial, call Anglian or Everest. 2.4 mts is about the max for 3 panes. 3 or 5 panes work best as with even numbers you have to push every other mullion outwards to get the doors to all slide. Aluminum is generally best but use a major trade...
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    Help! no DPC under french/patio doors

    The PVC doors are nil capillaric which means it will not absorb water and transfer it internally as a brick would. Just ensure that the cavity inside the doors hasn't been filled with cement/concrete or similar. If there is a need to fill the cavity ensure a vertical PVC membrane prevents the...
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