Cost GuideUpdated July 9, 2026
Getting the plumbing rough-in right is a big part of any kitchen remodel. In South Holland, many homes were built between the 1950s and 1980s, so the existing pipe layout and age can make a big difference in cost and complexity. We see a lot of ranch-style and split-level houses, which often means tight crawlspaces, mid-century drain lines, and sometimes older galvanized or cast iron piping. These factors matter when you start changing the footprint or adding new fixtures.
Why Plumbing Rough-In Drives Cost for Local Kitchens
The rough-in includes running all water lines, drains, and vent piping before walls go back up. A straightforward job might just mean moving sink supplies a few feet. More often, South Holland remodels involve relocating sinks or adding things like dishwashers, refrigerators with water dispensers, or even a pot filler. Each change can require opening up walls, floors, or sometimes cutting through slab or clay-rich soil if you're going all the way to the main stack.
Older homes in our area also bring surprises. We routinely spot corroded galvanized supply lines or cast iron branch drains that won't meet modern plumbing codes. Replacing these brings additional cost but avoids bigger headaches down the road, like leaks that can ruin new cabinets or tile. Our crew always inspects anything that will be tied into new work, so there are no hidden issues left behind. Repiping and drain line repairs pop up because of these older materials.
Common Steps in a South Holland Kitchen Rough-In
Here's what we walk through on a typical job:
- Shut off and drain existing lines. The main shutoff is usually near the water meter or in the basement. We always protect floors from stray water.
- Remove or cap old supply and drain lines. In older homes, some of these lines are buried in walls or slab, needing careful demo work.
- Lay out new locations for sinks, dishwashers, refrigerator supply, or gas for stoves. The placement of cabinets and appliances will dictate how lines are run.
- Run new supply and drain lines to code. Modern kitchens use PEX or copper for water, and PVC for waste lines. We size and vent everything for reliable drainage and water flow.
- Pressure test and check for leaks. Every connection gets checked before drywall or cabinets go in.
Don't forget, if you're moving a sink to an island, you'll need a vent solution like an air admittance valve or additional vent stack work. That can bump up both time and cost.
Typical Cost Factors in South Holland Homes
Every kitchen is different, but certain local details impact rough-in costs here. If your house still has galvanized or cast iron, partial or full repiping can become necessary. Clay-rich soils and a high water table affect basement and slab work, extra time for safe excavation or drilling may be required, especially for homes on a slab or with finished basements.
Another budget item is fixture count. Adding a new dishwasher, pot filler, or ice maker line increases labor and material. South Holland's cold winters also require proper pipe insulation and placement to prevent freeze risk. Sometimes we need to reroute lines farther from exterior walls or boost insulation, which adds time but saves trouble later.
Be sure the existing drain lines are clear and sized right. If we find slow or clogged drains, a drain cleaning might be needed before tying in new fixtures, which keeps everything working like it should after the remodel.
Warning Signs Your Old Plumbing Needs Attention
- Frequent kitchen sink clogs or slow drains (could mean buildup or an undersized main line)
- Rusty, discolored water at the tap (signals corroded galvanized pipes)
- Visible leaks under the sink or along basement plumbing runs
- Drains that smell even after cleaning (venting issues are common in older homes)
- Water hammer or knocking pipes (lines may be loose or need air chambers)
If these show up, it makes sense to address them during the remodel rather than patch them later. We often recommend an inspection at this stage, since it's easier and less expensive to fix things with walls and floors already open.
Local Codes and Permits
South Holland follows Illinois Plumbing Code, which requires licensed plumbers for rough-in work and final inspections before walls close. Permits are necessary for any line relocation or new fixture install. We always factor permit fees and inspection timing into the project plan to avoid delays.
Other Hidden Costs or Savings Opportunities
Some homes have old shutoff valves that barely work or are hard to access. Swapping them out is smart and won't add much cost if done with the rough-in. If you're upgrading to modern, water-efficient fixtures, you might see lower utility bills over time. Installing or relocating a garbage disposal at this stage is more efficient than trying to retrofit one later. For homes with basement seepage or drainage issues, a sump pump check protects your new investment from flooding.
If you plan to upgrade appliances that need a gas connection, don't forget to check your gas lines for capacity and routing. We coordinate these steps so nothing is missed, and you don't run into last-minute surprises as the project wraps up.
Our team knows the quirks of South Holland houses: clay-rich soil, freeze risks, older plumbing, and tight spaces. If you want a straight answer on kitchen plumbing rough-in or need a clear estimate, call us at 708-847-3050. We handle the details so your remodel goes as smoothly as possible.