RepairUpdated June 8, 2026
Moving a kitchen sink is one of the most involved changes you can make in a remodel. For Lake In The Hills homes, which range from 1980s builds to newer subdivisions, this project brings some tough plumbing decisions. Rerouting water supply and drain lines requires precise planning and the right tools, especially with slab foundations and tight crawlspaces common in local construction.
What Makes Relocating a Sink Complex?
Your kitchen sink connects to both hot and cold supply lines, a drain, and often a garbage disposal or dishwasher. Relocating the sink means reworking all these connections. It can involve cutting into floors and walls, rerouting pipes, and sometimes upgrading plumbing if existing pipes show age or corrosion. Many Lake In The Hills homes built in the late 20th century have copper, PEX, or, in some cases, galvanized pipes. Galvanized lines are known for rust and buildup, and moving your sink is a chance to address any issues before sealing everything up behind new cabinets or tile.
Rerouting Drain and Vent Lines
The drain is usually the most challenging part. Kitchen drains must slope at least 1/4 inch per foot for proper flow toward the main stack. If your new sink location is far from the current drain or on the other side of the room, rerouting involves careful slope calculations to prevent clogs or slow drains. If the run is long, an air admittance valve or new vent stack tie-in might be needed, since kitchen sinks depend on proper venting to avoid sewer gases backing up. Our crew often checks for existing issues, like slow drains, and may recommend a drain cleaning at the same time.
Water Supply Adjustments
Hot and cold supply lines can usually be extended with new PEX or copper pipe, but access is key. In ranch and colonial layouts typical of this area, the plumbing often runs below the floor, so you may be looking at opening up basement ceilings or crawling under the first floor. If the lines run through exterior walls, extra insulation is crucial thanks to Lake In The Hills' cold winters. Without it, pipes are much more likely to freeze and burst, especially in older uninsulated walls. During a remodel, it's smart to insulate everything you expose, even if you're not moving the sink far.
Aging Plumbing and Hidden Surprises
With homes here mostly 20-40 years old, we frequently run into original plumbing that has seen better days. Corroded galvanized pipes or old rubber supply hoses sometimes need replacement, not just extension. If you run into slow drains or evidence of leaks, our leak detection and repair team can check for hidden issues before your new cabinets go in. It's also common to find that venting isn't up to current code, or that previous work was done quickly during the housing boom. These problems add complexity, but they're easier to fix during a remodel than after the fact.
Appliance Hookups and Fixtures
Kitchen sinks are often paired with dishwashers and garbage disposals. Relocating the sink means rerouting these connections too, updating drains, and moving electrical or air gap lines. We recommend choosing new supply valves and quality braided hoses, since this is the time to upgrade. If you're planning new fixtures, our faucet and fixture installation service ensures everything lines up right and water shut-offs are accessible. For garbage disposal setups, our licensed plumber checks that the under-sink wiring and drain tap meet local code. We recommend garbage disposal services at this stage if you're replacing or relocating the disposal.
Steps for a Successful Sink Relocation
- Plan the new sink location and check for plumbing access below or behind the area.
- Map out the new drain route, maintaining proper slope and vent connections.
- Shut off the main water supply before disconnecting any lines.
- Inspect existing pipes for corrosion, leaks, or outdated materials, and replace as needed.
- Install or adjust water supply lines, using PEX or copper for durability.
- Reconnect drain and vent lines, testing for leaks and flow.
- Install new fixtures and appliances, checking each for proper function.
Avoiding Problems in Local Homes
Given the clay soil and moderate water table in Lake In The Hills, foundation settling can sometimes shift or stress pipes, especially drains run through slabs. We look for signs of movement and secure new drains so they don't sag or separate over time. If you have a basement remodel in mind, keep in mind that rerouting drains sometimes involves breaking up concrete or working around existing sump pits. Our kitchen remodeling crew is experienced with both slab and basement construction. If you find unexpected leaks or supply problems, pipe repair and repiping may be a practical add-on during your project.
If you're considering relocating your kitchen sink during a remodel, our plumbers have the hands-on experience to get it done right and up to code. Call us at 224-524-1522 to discuss your project, ask questions, or schedule an estimate. We help Lake In The Hills homeowners with projects big and small.