InstallationUpdated July 16, 2026
Many Island Lake homes were built decades ago with the old standard of a full bathtub, but lifestyles change. Homeowners often want accessibility, easier cleaning, or to refresh an outdated bathroom. Turning a tub into a walk-in shower is a practical project, but the plumbing behind the walls matters as much as what you see.
Why Older Island Lake Homes Need Careful Planning
Most local homes were built between the 1960s and 1990s, using a mix of copper, galvanized steel, and PVC piping. Some still have original drains or aging supply lines. Converting a tub to a walk-in shower needs more than just swapping out fixtures. The drain height, pipe slope, and venting all need to work with your new setup. If your home has galvanized pipes or cast iron drains, we often see corrosion or slow drains, so we check the condition before starting any remodel.
What Goes Into a Tub-to-Shower Conversion
Here's the process our team typically follows when we're asked to convert a bathtub to a walk-in shower:
- Shut off the water and carefully remove the old tub, making sure not to damage supply or drain lines hidden under the floor.
- Inspect existing piping. In homes 30-50 years old, we often look for corroded galvanized lines or slow-draining cast iron. Replacing these with modern PVC or PEX can prevent problems.
- Adjust the height and location of the drain. Tubs and showers have different requirements, and proper slope is key for good drainage.
- Install a new shower base, making sure the floor is level. Clay and loam soils in this area can lead to minor settling over decades, so we check for soft spots or dips.
- Update the shower valve and controls for reliability and temperature consistency. We recommend pressure-balancing valves, especially with Lake Michigan-sourced water that's moderately hard.
- Test everything for leaks before any tile or wall panels go up. We prefer to deal with issues now, not after the remodel is sealed up.
If you're thinking about new fixtures, our faucet and fixture installation service can help you choose reliable, efficient models that work well with your existing plumbing.
Common Plumbing Hurdles in Local Homes
Island Lake's freeze-thaw cycles and occasional basement seepage add some twists to bathroom remodels. Old homes may have drains that slope poorly or run through older clay-tile or cast iron pipes, which are prone to clogs and root intrusion. If there's a history of slow drainage, we often suggest a professional drain cleaning before the conversion. In homes with clay or loam soil, we also check for solid support under new shower bases to avoid long-term settling.
We sometimes recommend adding or upgrading a sump pump if the new shower is in a basement or lower-level bathroom. See our sump pump services for more details on keeping water out of the wrong places.
Signs You Might Need Extra Repairs
Before a tub-to-shower conversion, watch for these warning signs that you might need more plumbing work:
- Water stains or soft spots around the tub or floor indicating a slow leak
- Frequent clogs or gurgling sounds when the tub drains
- Visible rust, corrosion, or mineral buildup on supply lines
- Musty odors coming from the drain, hinting at trapped water or leaks
- Low water pressure at the tub or sink, which can mean aging pipes
If you notice any of these, consider a checkup before starting your remodel. Our leak detection and repair service can spot hidden problems early, and our pipe repair and repiping team handles upgrades if your supply lines or drains need replacing.
Code Compliance and Local Challenges
Lake and McHenry counties both follow modern plumbing codes, which require showers to have a properly sized trap and vent. Older Island Lake homes sometimes have outdated or undersized venting. We'll make sure your new shower drain is up to code, which helps avoid sewer gas odors and slow drainage. If your home's main drain is original clay-tile or cast iron, we may suggest a camera inspection to check for problems before adding new fixtures. For those interested in broader plumbing upgrades, our sewer line services can address issues that go beyond the bathroom.
Small Details That Make a Big Difference
When converting a tub to a walk-in shower, we always review water heater sizing too. Showers use water differently than tubs, and longer showers can strain older tanks. Our water heater services can check if your system is up to the task. We also look at water pressure, as old PRVs or aging supply lines can affect shower performance. These smaller fixes help give you a better experience long after the job is done.
If you're ready for a safer, more modern bathroom, give us a call at 847-200-8875. Our crew handles the plumbing details so you can use your new walk-in shower with confidence, and we're always available to answer questions from Island Lake homeowners.