Not once the d/g glass unit is in although you can if you want to but may hit the metal lintel or rod etc, unless it is a one unit of glass(?) I sometime bed the bottom cill on rapid sand/cement if the bottom isn't level.
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