Plumbing
A kitchen sink needs hot- and cold-water supplies, to be connected to its faucets, and a waste pipe. Dishwashers also need to be plumbed in, and their supply and waste pipes are often extended from the sink plumbing. Therefore, it makes sense to keep them close together, if possible. Waste pipes are particularly difficult to extend, because they must run at a gradient. If you alter waste pipes you may need to notify your local building inspector.

Installing a New Kitchen
When remodeling a kitchen, consider the order in which you complete each task. Below is an example of a typical work strategy, but there must always be some flexibility built into the work schedule, depending on design elements.

Initially, you will need to remove the old kitchen, but you should take into account such issues as how you will maintain a water supply during renovation work and how you will deal with cooking and bathing needs.

Order of Work for Refurbishing a Kitchen:

1. Reroute electrical wiring, if necessary

2. Reroute plumbing, including gas pipes, if necessary

3. Complete structural work on walls, ceilings, and floors

4. Install base cabinets then wall cabinets

5. Install countertops and backsplash

6. Install sink and plumbing fixtures

7. Install stove (or separate stove and oven)

8. Install exhaust fan