Plumbing Layout Planning
PremiumHow to plan your water supply, heating, and waste pipe positions before the plumber arrives. Copper vs push-fit, boiler positioning, and the decisions that can't wait.
Do this first:
A plumber who doesn't know where your sink goes will put pipes where it suits the pipe run, not where it suits your kitchen. Plumbers routinely chase pipework into the wrong wall during first fix when nobody provides a layout drawing. They assume the sink is on the wall closest to the existing plumbing. Reasonable assumption. Wrong wall. That's rerouted pipes, wasted time, and walls that need making good before they've even been plastered.
This leaf covers the planning. The actual installation (first-fix plumbing) is a separate task that happens after you've completed this exercise. You are the designer. Your plumber executes your design. If you hand them a phone call instead of a drawing, you'll get assumptions instead of answers.
Your kitchen layout must be finalised before you plan plumbing positions. The sink position determines supply and waste pipe routes. The dishwasher and washing machine positions determine branch connections. The boiler location determines everything else. If the kitchen design changes after first-fix pipes are buried in walls and screed, rework is expensive and disruptive. Don't start this until measuring and layout is complete.
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