@CYOA
Triple glazing would block out a bit more noise than double. But it's expensive and the 50+% increase in glass weight and thicker frames put more strain on the hinges. I don't think the UK is generally cold enough to warrant the expense Vs double glazed windows with Low-U glass Argon filed units and poor triple is worse than decent double glazing.
Theres actually acoustic laminated glass if you have LOTS of noise and this can be built into a Double Glazed Unit. But a cheaper way would be to just use two different thickness pieces of glass. For a 28mm DGU 6mm clear (outside) / 18mm warm edge spacer / 4mm clear Low-U (inside)
When you say the front window frame is warped, so doesn't close fully. That being open slightly will allow a lot of noise through.
What type of window do you have?
Handles are a few quid and easy enough to change. Why the handle snapped may need some more parts replaced if something else has seized.
It probably just needs adjusting the hinges and/ or repacking the glass to support the sash and get it square within the frame.
@CYOA
Triple glazing would block out a bit more noise than double. But it's expensive and the 50+% increase in glass weight and thicker frames put more strain on the hinges. I don't think the UK is generally cold enough to warrant the expense Vs double glazed windows with Low-U glass Argon filed units and poor triple is worse than decent double glazing.
Theres actually acoustic laminated glass if you have LOTS of noise and this can be built into a Double Glazed Unit. But a cheaper way would be to just use two different thickness pieces of glass. For a 28mm DGU 6mm clear (outside) / 18mm warm edge spacer / 4mm clear Low-U (inside)
When you say the front window frame is warped, so doesn't close fully. That being open slightly will allow a lot of noise through.
What type of window do you have?
Handles are a few quid and easy enough to change. Why the handle snapped may need some more parts replaced if something else has seized.
It probably just needs adjusting the hinges and/ or repacking the glass to support the sash and get it square within the frame.
Feel free to PM