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Hi,
decided to go with hardwood double glazing sash replacement as that's the only option which does not require ripping out the existing wooden fixtures. I don't live in a conservation area but I want to keep the original features.
Originally posted by alladin
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Using the original boxes and replacing only the sashes is ok as long as the boxes are in tip top condition otherwise in a few years time you will have rotten boxframes with nice sashes in them. Also worth noting because of the increased weight of the glass you will need longer ,heavier weights so whoever makes the sashes needs to work out if there is enough room/height in the boxes to take the extra weight.
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The quote I've been given is £730 per window in Kiln dried Mahogany double glazing including horns (like for like). The quote is irrespective of the size of the window as apparently the price is more about the labour rather than the materials. I have 22 windows, of which 3 are small .5m (w) 1m (h). Extra for locks, paint and vertical bars.
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"Kiln dried mahogany" is a generic name so without knowing what species of timber and what type of double glazing you would be getting its difficult to tell if its value for money. One thing to remember is there's no point in fitting double glazing if you don't have the draught proofing carried out at the same time..
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I've read that oak is the best and having sound proofing windows is advisable. But is this worth it, the windows don't face the main road however I does retain heat better than double glazing.
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No point using Oak to be honest as its hugely expensive and will certainly outlast the boxframes. Also its difficult to paint due to tanic acid in the timber.
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If anyone has experience this, what would you advise? Should I be looking for companies who use oak? Would spending extra £90 on sound proofing be worth while? Are the prices realistic bearing in mind I live in Cardiff.
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What do they class as soundproofing? If its basically fitting draught strips then it will help the acoustics a little but better for thermal value so should be done as a matter of coarse when replacing the sashes and is as simple as routing a groove in the sashes and fitting weatherstrips which should be very cheap per window.
Can you post the actual wording from the quote word for word?.