Core drill 150mm external hole and connect existing cooker hood

Looking for a tradesman or handyman with a core drill to vent an existing, fully working cooker hood to the outside. The hood is already mounted and operational, but it is currently only recirculating air because there is no external vent. The job requires: 1. Core Drilling: Drill a clean 150mm hole through the external brick wall directly behind or above the cooker hood. 2. Ducting & Connection: Run 150mm ducting from the existing cooker hood, through the new hole, to the outside. 3. External Vent Installation: Fit a standard 150mm vent cowl/grille on the outside wall. 4. Sealing: Ensure the external vent is fully weather-proofed and sealed against rain and drafts.