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About to pull the trigger on new double glazing...

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  1. #1
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    Default About to pull the trigger on new double glazing...

    Hi all,

    we we are replacing a couple of windows and a big sliding door in our lounge. We have a quote for around 4.5k for aluminium frames. Despite being in Sydney, our house can get cold in winter as the windows and door face SW. Iím really tempted to pay the extra 2.3k for 20mm lowE double glazing. The base quote is for 6.4mm clear lam + 4mm toughened. I read somewhere than double glazing can last between 10-30 years. Is that really the case? 10 years would be a real waste. But Iíve also read that double glazing can be replaced without changing the frames. Do they just measure the frames and replace them in place?

    many thanks
    Nick
    😃

  2. #2
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    Double glazing doesn't have an expiry date! Where did you read that?

    Make sure you get several quotes for the double glazing. Also with aluminum, consider getting thermally broken or thermally improved frames as they are more efficient - they stop heat getting in and out through the frames.

    The best double glazing has a decent air gap between the panes - so best to get it done at the beginning. These days it’s pretty common to also have argon in the gap between panes.

    I have double glazing with low e glass and argon. In uPVC windows though.

  3. #3
    3K Club Member johnc's Avatar
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    If you break a double glazed panel it is simply removed and replaced with a new panel. yes it is as simple as measuring and ordering. Ditto, there is no expiry date on glass. No idea if the low E has an effective life.

    Ditto for Joynz comments, we have double glaze in both timber and aluminium windows, you don't really notice the difference day to day but the house will remain warmer overnight when the heating is off and heating and cooling bills will drop.

  4. #4
    Community Moderator phild01's Avatar
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    If for some reason there is a faulty seal, the argon might leak out. May not make a lot of difference though!?

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    It is only a small difference to have argon. But didn’t cost any extra.

  6. #6
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    I just googled ‘how long does double glazing last?’

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    Quote Originally Posted by phild01 View Post
    If for some reason there is a faulty seal, the argon might leak out. May not make a lot of difference though!?
    I think if that happens, you can get misting between the layers?

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    Quote Originally Posted by NickRaphael View Post
    I think if that happens, you can get misting between the layers?
    I believe that misting between the layers means the seal has failed. Your windows will have a warranty (6.5 or 7 years from memory).

  9. #9
    JB1
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    Default About to pull the trigger on new double glazing...

    Bit hard to prove that invisible gas has leaked
    ----

  10. #10
    1K Club Member DavoSyd's Avatar
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    Quote Originally Posted by JB1 View Post
    Bit hard to prove that invisible gas has leaked
    ----

    interestingly enough, i am just doing some thermography training and this issue was covered:

    iguthermo.jpg
    freedom of expression freedom from consequences...

  11. #11
    1K Club Member DavoSyd's Avatar
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    another example from the inside:

    Attached Thumbnails Attached Thumbnails iguthermo2.jpg  
    freedom of expression freedom from consequences...

  12. #12
    JB1
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    Default About to pull the trigger on new double glazing...

    Quote Originally Posted by DavoSyd View Post
    interestingly enough, i am just doing some thermography training and this issue was covered:

    Haha spoke too soon.

    Notwithstanding, is it a warranty item

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    1K Club Member DavoSyd's Avatar
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    Quote Originally Posted by JB1 View Post
    Haha spoke too soon.
    yeah, it was a crazy coincidence that i saw that!
    freedom of expression freedom from consequences...

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