Also are you replacing existing glass units inthe roof? If so and its a upvc Conservatory you will need to upgrade all the roof bars too...Glass weighs much more than polycarb
As Ronnie says, do you mean just replacing poly to glass in which case then heavy duty rafters are needed and depending on roof style then tie bars too or is it a complete roof?
Is it a lean to style roof or victorian, edwardian, double hipped with box gutter, to many variables, a picture or design sketch would help
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local