Can I move my kitchen sink to the island during a renovation?

Yes, you can move your kitchen sink to an island, but this involves significant plumbing work that requires a licensed plumber and proper permits in New Brunswick. This is one of the more complex kitchen modifications because it affects both your water supply and drainage systems.

The biggest challenge is drainage and venting. Your island sink needs proper drainage slope back to the main stack, which often means running new drain lines under your floor. In New Brunswick's older homes—especially those built before the 1980s—this can involve cutting through floor joists or concrete, requiring structural considerations. The drain line needs to maintain a minimum 1% slope (1/4 inch per foot) back to your main drain stack.

Venting is equally critical under the National Building Code of Canada 2020 (effective May 1, 2025 for new applications). Island sinks typically require either an island vent that loops up above the countertop before dropping back down, or an air admittance valve (AAV) if your municipality permits them. Not all New Brunswick municipalities allow AAVs, so check with your local building authority first.

For water supply lines, you'll need to run hot and cold lines to the island location. This is usually easier than drainage but still requires opening walls or floors. If your home has older galvanized supply lines, this might be a good time to upgrade that section to PEX or copper.

Electrical considerations include GFCI-protected outlets for the island and potentially relocating your dishwasher if it's moving with the sink. All electrical work requires a licensed electrician and NB Power wiring permit (1-800-615-0522).

Permit requirements: You'll need a plumbing permit from NB Technical Inspection Services (TIS) at 1-888-659-3222, and likely a building permit from your municipality or Regional Service Commission if structural modifications are involved. The licensed plumber will handle the plumbing permit application.

Cost expectations for this modification typically run $3,500-$8,000 in New Brunswick, including plumbing rough-in, electrical work, and permits. Factors affecting price include your home's age, basement access, flooring type, and distance from existing plumbing.

Consider hiring a kitchen designer first to ensure your island placement works with your workflow and meets code requirements for clearances. Find licensed plumbers and kitchen renovation specialists in our New Brunswick Construction Network directory to get proper assessments and quotes for your specific situation.