What to Know About Moving Your Kitchen Sink in Hillside Homes

RepairUpdated June 8, 2026

Moving the kitchen sink is one of the most demanding parts of any remodel in Hillside. Shifting the location may sound simple, but in homes built 50 to 70 years ago, that move reaches deep into your home's bones, pipes, drains, vents, and the foundation itself. A mistake here can mean leaks under new cabinets, slow drains, or even water damage in finished spaces. Our crew sees these risks firsthand, especially with the older brick and frame houses common in our area.

Why Relocating a Sink Is Different in Older Hillside Homes

Homes built in the mid-20th century were plumbed with materials like galvanized steel, cast iron, and sometimes even clay drains under the slab. Over decades, mineral buildup from moderately hard Lake Michigan water and corrosion inside steel pipes can reduce both supply pressure and drain flow. When you move a sink, we usually find original lines that need full or partial replacement. Working around existing brick, dense clay soils, and sometimes shallow crawlspaces adds to the challenge.

Plumbing Requirements for a Relocated Sink

A new sink location is more than just moving a faucet and basin. We must reroute both hot and cold water supply lines, often upgrading from galvanized to copper or PEX in older homes. Drain lines need correct slope (usually 1/4 inch per foot) to ensure reliable flow, especially since Hillside's clay and loam soils don't forgive poor grading. Behind the wall, the vent stack must connect properly, or you'll end up with slow draining and gurgling sinks. Missing a vent can also bring you a sewer gas problem, which is both damaging and against local code. For any supply or drain pipe overhaul, see our pipe repair and repiping services.

Drainage, Sumps, and Flood Risks in Hillside

Our local soils and the moderate water table make attention to drainage crucial. Improperly routed kitchen drains can increase the risk of clogs and backups, especially if your home still uses clay or cast iron main lines. And with proximity to the Des Plaines River and annual freeze-thaw cycles, water management is key. Many homes rely on sump pits to stay dry in heavy storms. If your sink relocation involves changes to the basement or lower level, it's wise to have your sump pump system checked at the same time.

What Happens During a Kitchen Sink Relocation

  • We turn off the main water shutoff and remove the old sink, faucet, disposal, and supply lines.
  • The crew exposes the wall and sometimes floor space to access existing pipes.
  • Old galvanized or cast iron lines are cut and capped, and new supply/drain pipes are routed to the new sink's exact location, making sure every joint is leak-free and properly sloped.
  • The vent stack tie-in is inspected and, if needed, extended to keep the system up to code.
  • We install new shutoff valves, P-traps, and flexible supply hoses. At this point, a new faucet or garbage disposal can be added. We handle full faucet and fixture installation and garbage disposal work if that's part of your plan.
  • After pressure testing and inspection, walls and cabinets can be finished and reinstalled.

Warning Signs and What to Watch Out For

  • Low water pressure at your current or new sink location, often from corroded old pipes.
  • Slow draining, bubbling, or backup at the sink, can signal an undersized or poorly sloped drain, or a vent problem.
  • Water leaks under the cabinet after a remodel, most often from loose connections or old shutoffs.
  • Mold or moisture smells behind new cabinets, can mean a hidden leak or condensation issue.

Ahead of any kitchen remodel, it's smart to have a pro check your main drain and vent lines. Our drain cleaning service often finds obstructions that would turn into bigger headaches after a sink move. If you suspect more serious trouble below the slab, our sewer line services can help spot and fix problems early.

Staying Compliant with Codes and Permits

The Village of Hillside follows strict plumbing codes based on Illinois standards. All relocations need proper permits and should be inspected once rough-in work is done. DIY rerouting without the right venting, slope, or shutoff access can cause failed inspections, delays, and expensive corrections. Professional plumbers know how to meet local code, especially with venting and backwater valves, so you avoid last-minute surprises when selling, refinancing, or simply living in your updated home.

If you're planning a kitchen remodel and want to relocate your sink, our team is ready to make it safe and code-compliant from start to finish. For help anywhere in Hillside, call us at 708-809-8751. We're here to answer questions and keep your home running right.

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Frequently Asked Questions

You have some flexibility, but there are limits. The farther you move the sink from existing drains and vents, the more complex and costly the job becomes. Slab foundations, brick walls, and the path of existing pipes all factor in.

Yes, the Village of Hillside requires a plumbing permit for any change that involves moving supply, drain, or vent lines. Inspections are also required before walls are closed up.

Older homes often have corroded galvanized or cast iron pipes, which can be brittle or blocked. You may also have shallow drains or difficult access behind brick walls. It's common to discover unseen leaks or venting issues once the walls are open.

It's often a good time to upgrade, since you'll need new supply lines and shutoffs at a minimum. Most homeowners choose to install a new faucet or garbage disposal during the project.

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