Cost GuideUpdated June 27, 2026
Upgrading your bathroom adds comfort and value, but many Marseilles homeowners are surprised by the plumbing work under the surface. Local homes, especially older ones, often have supply lines, drains, and vent stacks that need attention before new tile, vanities, or tubs go in. Neglecting plumbing during a remodel can lead to leaks, poor drainage, water damage, or unexpected expenses down the road. Our team has seen what gets missed and what it takes to do the job right in this area.
Why Local Homes Need Special Plumbing Attention
Homes around Marseilles range from early 1900s builds to more recent construction. Many older houses still run on galvanized steel pipes or have cast iron drain lines, both of which corrode and clog over time. Clay soils and a moderate to high water table can also put extra stress on foundation plumbing and basement lines, important if you're adding a shower or laundry nearby. Cold, snowy winters with freeze-thaw cycles are another factor. Pipes in exterior walls or basements are at risk of freezing and splitting, which is why winterization is a must after any remodel.
Check Existing Drain and Water Lines First
Before any bathroom demolition, we start by locating and inspecting existing water and drain lines. In older homes, we often find:
- Galvanized or old copper supply lines prone to pinhole leaks or rust buildup
- Cast iron or clay drain pipes with cracks or heavy scale
- P-traps and branch drains clogged with decades of buildup
- Improperly vented fixtures causing slow drains or gurgling sounds
If the supply lines are original or show signs of corrosion, it's wise to budget for partial or full repiping. You don't want to put new tile or cabinetry over problem plumbing. Our pipe repair and repiping services give homeowners a clear look at what needs upgrading and what can stay.
Plan for Fixture Relocation and Upgrades
Moving a sink, shower, or toilet isn't as simple as shifting the fixture. The drain and vent stack locations dictate what's possible without major floor or wall work. If you're planning to enlarge a shower, add body sprays, or switch to a double vanity, your water lines and drainage may need to be rerouted. We often see undersized supply lines that can't support multiple fixtures at once, leading to low pressure or uneven temperatures.
For new faucets, tubs, and toilets, proper installation matters just as much as the brand you pick. Our faucet and fixture installation crew handles the connections, shutoffs, and proper venting. We also check for the right slope and support under every drain.
Watch for Hidden Issues and Plan for Access
Some warning signs mean you should look harder before finishing the walls or floor:
- Low water pressure: Can signal corroded galvanized lines or a failing pressure reducing valve
- Slow or gurgling drains: May point to clogs, roots, or a venting issue farther down the stack
- Odd smells or damp spots: Could mean hidden leaks in walls, floors, or below the slab
- Water stains on ceilings or baseboards: Often from failing seals or old supply lines overhead
If you're taking out old tub surrounds or subfloors, now is the time to repair or replace anything suspect. Our leak detection and repair team uses pressure testing and inspection cameras to catch hidden trouble before it's covered up.
Consider Water Heaters and Hot Water Supply
Adding extra fixtures or a large soaking tub? Your current water heater may not keep up, especially if it's over ten years old or undersized for your household. We recommend checking the tank size and recovery rate before finalizing your remodel plans. Upgrading to a higher capacity or a tankless model sometimes makes sense during a renovation. Our water heater services include full replacement or relocation, venting, and plumbing changes to match your new bathroom's demands.
Don't Forget Drain Slope and Sewer Health
Bathrooms on slab foundations or with basement plumbing need proper slope in all drain lines. Even small mistakes can lead to slow draining, standing water in the shower, or sewer odors. Homes near the Illinois River and in areas with clay soil sometimes struggle with older sewer laterals or main line issues. If you've had backups before or notice chronic slow drains, consider a full drain cleaning. Our drain cleaning and sewer line services clear out roots, scale, and blockages before you install new finishes.
Careful planning of your bathroom plumbing avoids the need to tear out new work for a hidden repair later. Our licensed team helps Marseilles homeowners with every phase, from inspection to fixture installation. If you want your remodel done without surprises, call us at 779-382-2518. We're ready to answer your questions and provide clear, professional estimates for your project.