**Direct answer:** Dishwasher installation and hookup connects the water supply, shut-off, and drain hose correctly and leak-free. Proper drain routing (like a high loop) and reliable shut-offs help prevent under-sink leaks and drainage issues, especially during appliance replacement or kitchen renovations. If you need **Dishwasher Installation & Hookup** in Toronto & the GTA, we’ll start by confirming the real cause, then walk you through the most practical options (quick fix vs long-term fix). To book service, call **647-784-8448** or email **[email protected]**.