Need help installing a new bath screen / shower enclosure

I'm looking for a reliable tradesperson to install a new bath screen (pare-baignoire) in my bathroom. The project involves removing the old enclosure, preparing the surrounding area, sealing, and ensuring the enclosure is securely mounted and watertight. Preference for someone familiar with UK bathroom fittings and standard sizes. I have the shower screen kit and silicone sealant ready, and I’m hoping to complete the installation within a couple of hours. If possible, please confirm compatibility with standard bath dimensions and whether you provide the necessary fittings. Flexible with start time, aiming for a morning appointment.