Need help installing dishwasher in small kitchen

Hi there, I recently bought a new dishwasher and I’m looking for someone to install it in my small kitchen. The current plumbing seems accessible, but I’m unsure about connecting the water supply and drainage, plus securing the unit properly under the countertop. I’d prefer a tidy setup with proper anti-flood measures and a quick test to ensure everything runs smoothly. If you have experience with UK standards and can advise on any required fittings, that would be great. I’m aiming for a clean, efficient install with minimal disruption.