When it comes to installation, regardless whether you wish us to install skylight(s) or you have another company to do it, we are not selling ready upstands at the moment. Therefore, the upstand would have to be prepared prior to the scheduled installation. For builders wishing to assemble an upstand and secure a skylight on top, we are happy to provide free of charge advise. Please, do contact us for more detailed information.
Below you can find examples of the properly prepared upstand after finishes: