Tips And TricksUpdated June 23, 2026
Many homes in Tonica were built in the mid-20th century, and bathroom layouts often reflect the design trends of that era. One common request we get is converting a traditional bathtub into a walk-in shower. The benefits are clear, better accessibility, safer entry, easy cleaning, and more usable space. But older homes around Tonica can have plumbing challenges that make these remodels more complicated if you don't plan ahead.
Understand Your Bathroom's Plumbing Before You Start
Most older houses in Tonica have galvanized steel or cast iron supply and drain lines. Over time, these materials corrode and restrict water flow. Before tearing into tile or walls, our team always checks the condition of the plumbing under and around the tub. Leaking or rusted pipes are common, especially near the tub drain or behind the old surround. If you see signs of corrosion or slow drains, it's best to address those issues now instead of waiting for bigger problems later. Our pipe repair and repiping service is built for situations like this, where upgrading the hidden plumbing can save you headaches down the road.
Plan for Drain and Water Supply Adjustments
Bathtubs and showers often have different drain locations. A tub's drain is usually against the wall, while walk-in showers might need the drain moved to center the new shower pan or provide better slope. In homes with cast iron or old galvanized drains, remapping the line may require breaking up some floor and carefully cutting or replacing heavy piping. We also check the size of the existing drain. Showers need at least a 2-inch drain line to handle the higher flow, many older tubs have only a 1.5-inch line. Our crew recommends upsizing the line when possible to prevent clogs and standing water. At the same time, we inspect the supply lines for leaks and proper shutoffs, so the fixture installation goes smoothly.
Watch for Signs of Past Water Damage
Bathroom remodels often uncover hidden moisture problems. Water stains, spongy subfloors, or a musty smell can point to slow leaks behind walls or under the tub. In Tonica's humid climate, moisture issues can grow quickly, especially during warm and wet summers. Before installing the new shower base, we always check the subfloor for rot and replace any damaged material. If you suspect leaks, our leak detection and repair team can pinpoint the source. Proper prep at this stage ensures your new shower lasts and prevents future mold.
Pick Fixtures and Materials Built for Older Homes
Old plumbing can limit fixture choices. If your water pressure is inconsistent, certain modern shower valves might not work as intended. Our plumbers help Tonica homeowners choose fixtures that match existing plumbing or recommend upgrades to avoid trouble. Anti-scald valves, handheld wands, and built-in shower seats are popular for accessibility and safety. When you're ready for new faucets or showerheads, our faucet and fixture installation service makes sure everything meets code and runs without leaks. We also suggest easy-to-clean surrounds and slip-resistant pans for long-term usability.
Steps for a Smooth Tub-to-Shower Remodel
- Turn off water at the main shutoff before removing old fixtures.
- Remove the tub, carefully cutting out old caulk and checking for hidden pipes or wiring.
- Inspect and upgrade the drain to a 2-inch line if possible.
- Check for rot or water damage in the subfloor and support framing.
- Map the new shower drain location for proper slope and drainage.
- Install new water supply lines / shutoffs as needed.
- Fit the shower base, ensuring it sits level and is well supported.
- Seal all joints and test for leaks before finishing walls and adding fixtures.
Keeping drains clean will also keep your new shower working the way it should. Our drain cleaning service can help if you run into slow drainage or backups after the remodel.
Addressing Hidden Sewer and Water Line Issues
Many Tonica homes still use older sewer lines that can become clogged or invaded by tree roots over time. If you notice frequent backups, gurgling drains, or sewer odors, it might be time for our sewer line services. We also check for outdated water lines with leaks or pressure problems, a common find in houses near the Illinois River where soil shifts can stress buried pipes. Replacing sections now, during a remodel, saves you from having to open up finished walls later.
Our crew has seen just about every plumbing challenge in Tonica's older homes. Upgrading to a walk-in shower can make your bathroom safer and more functional, but it's the plumbing work behind the walls that ensures a smooth project. If you're ready to start your remodel, call us at 708-734-6995. Our plumbers know the local housing stock and can help you upgrade with confidence.