Retrofit Double Glazing can help you reduce noise
If noise is a concern, We can recommend some options to help you. There are various ways to reduce the transmission of noise through your windows by mass: using thicker glass, or a wider spacer between the glass and laminate, or a combination of the above.
However, with retrofit, you are limited to the thickness of the existing frame in your window. There is also trade-off if you decide to go with thicker glass, you will lose the thermal efficiencies of a double glazed unit.
If noise reduction is important to you click here to view more information.