Tips And TricksUpdated June 24, 2026
Relocating a kitchen sink during a remodel is one of the biggest plumbing changes you can make in a home. In Des Plaines, where homes run from older bungalows to new construction, this job touches on everything from water line routing to coping with our clay-rich soils and humid continental climate. If you're planning to move your kitchen sink, you'll want to understand what's involved before demolition starts.
Why Relocating a Sink Is a Big Decision
The kitchen sink connects to water supply lines, the drain system, and often a garbage disposal. Moving it means more than just cutting a new hole in the counter. You may have to reroute both hot and cold water, rework the drain, and consider things like venting for the new location. In older Des Plaines homes, especially those with galvanized or cast iron pipes, this can uncover hidden problems or require partial repiping.
Assessing What's Behind Your Walls and Under the Floor
Many homes here have a mix of original and updated plumbing. Before you commit to a new sink location, we recommend a thorough inspection of existing lines. If your house has had water in the basement or you're on a slab, clay soil and a moderate water table can complicate things. Rerouting a drain may mean working around or through foundation walls, needing specialized tools and careful planning.
- Check if the existing supply lines are copper, PEX, or older galvanized pipe.
- Locate your main drain stack. The farther you move the sink, the trickier the slope for proper drainage.
- See if your venting can reach the new spot, or if rerouting is needed to avoid slow drains or sewer gas smells.
- Consider whether you want to add a new garbage disposal or a different faucet setup.
- Think about code requirements and permits. Cook County plumbing code is clear about venting and drainage distances.
Managing Drains, Vents, and Traps
Sinks must drain quickly and keep sewer gas out of your home. The P-trap under the sink is part of that, but so is venting. Long or flat horizontal drain runs, which can happen when a sink is moved far from the stack, are susceptible to clogging and slow drainage. In some homes, getting enough slope can be a challenge, especially if you're working above a finished basement. Our crew often finds that a new vent tie-in or even an air admittance valve may be needed. If you've noticed past drain issues, you may want to schedule drain cleaning before your remodel kicks off.
Water Lines and Potential Pitfalls
Des Plaines gets its water from Lake Michigan, and over time, mineral buildup from moderately hard water can restrict flow in older pipes. If you're exposing supply lines during a kitchen remodel, this is a good moment to inspect and address any corrosion or reduced water pressure. Replacing old lines with PEX or copper can save trouble down the line. Be sure any new faucet or dishwasher connections have proper shutoff valves. If you plan to install a new water-using appliance, you might also need to check your water heater capacity.
Flooding, Sump Pumps, and Your Kitchen Drain
Flooding is always a concern in Cook County, thanks to the Des Plaines River and our local soils. While your kitchen is up on the main floor, a new drain line may run through areas prone to seepage, especially in basements. If you notice signs of wetness or your home sits near the water table, it's smart to make sure your sump pump is in good order and any penetrations are well sealed. Water leaks from kitchen drains can cause hidden damage and mold if not caught quickly. We've seen how a missed leak under a new sink can lead to major repairs.
What to Watch for After Relocating Your Sink
Once your new sink is in place, watch closely in the days and weeks that follow. Catching issues early helps avoid headaches later. Keep an eye out for:
- Slow draining or gurgling sounds from the sink
- Signs of leaks inside the cabinet or on basement ceilings below
- Unusual odors that could mean a venting issue
- Changes in water pressure at your kitchen faucet
- Puddles or moisture around any new piping runs
If something looks off, our leak detection and repair services can track down the source fast, before small problems turn big.
Work With Experienced Plumbers for Sink Relocation
Moving a kitchen sink in Des Plaines homes isn't a DIY-level job. Whether your home is a mid-century ranch or new construction, you're dealing with hidden plumbing, building codes, and sometimes surprises inside the walls. An experienced crew handles all the steps, tearing out, rerouting, connecting, testing, so your new kitchen works the way it should. If you want to update your whole space, our kitchen remodeling pros manage every detail from permits to final inspection.
Thinking about moving your kitchen sink or planning a full remodel in Des Plaines? Our team is ready to help with every step, from evaluating your plumbing to making sure the new setup works right. Call 224-257-7145 for honest advice and expert service where you need it most.