RepairUpdated July 14, 2026
Starting a bathroom remodel without a plan for your plumbing can turn a simple upgrade into a drawn-out repair headache. In Lincolnshire, a lot of homes are 30-60 years old. Many of these still use original copper or even galvanized supply lines and older drain assemblies. Getting the hidden plumbing right the first time saves you from leaks, water damage, and slow drains later on.
Check Old Supply and Drain Lines First
Before you dream about tile and fixtures, focus on what's behind the walls and under the floor. Older homes in Lincolnshire, particularly ranches and colonials from the 60s, 70s, and 80s, often have aging copper or galvanized steel pipes. Galvanized lines are known for rust and mineral buildup, which can choke off water pressure and sometimes flake apart right when you open up a wall.
We recommend inspecting all accessible supply and drain lines for corrosion, mineral deposits, or signs of seepage. In some cases, even PVC drains can show cracks or slipped joints. If anything looks questionable, this is the time for upgrades. Full pipe repair and repiping is much easier and less expensive before the new walls and tile go in. Upgrading aging drains and vent lines can keep slow-drain calls at bay for years.
Plan Fixture Layouts With Plumbing Limits in Mind
Moving a toilet or shower more than a few feet from its current position isn't as simple as shifting a cabinet. Bathroom drains, especially for toilets, rely on gravity and specific slopes. Running a new toilet drain across joists or against main lines adds a lot of labor and sometimes isn't possible without invasive work. The closer you keep new fixtures to original locations, the easier the job and the more reliable the result.
If you want to relocate anything, have a plumber map out the drain and vent plan. Staggered joists, unusual slopes, and even foundation placement (especially in homes set on slabs or with rolling terrain) all play a role. Code in this area requires proper venting for every fixture, so improper planning can trigger failed inspections later.
Update Shutoffs, Valves, and Water Hammer Protection
Every remodel is a chance to install new shutoff valves at each fixture. Sticking ball valves or compression stops tend to fail when disturbed, so we prefer swapping them for quarter-turn valves with stainless steel braided flex connectors. This is cheap insurance against future leaks, especially behind new vanities or toilets.
Water hammer is also common when you upgrade to new, fast-closing fixtures or high-efficiency toilets. If your old system has no hammer arrestors, now is the time to add them. Solid shutoff and hammer protection help prevent burst supply lines, especially during the winter freeze-thaw cycles the area experiences. For more on finding hidden leaks or moisture, see our leak detection and repair page.
Know Your Water Heater's Limitations
Every new shower head, deeper tub, or added sink asks more from your water heater. Many area homes were built with 40-gallon tanks. If your remodel adds a multi-head shower or whirlpool tub, that tank might run cold halfway through use. It pays to check your water heater's capacity and recovery rate before finalizing plans.
If you spot sediment or age-related problems during the remodel, you might want a new model before finishing. Our water heater services can help you decide the right size and type, especially given our local need for reliable hot water during cold Chicago winters.
Drain Sizing and Slope Matter
Bathroom remodels sometimes expose existing drains that are undersized for modern fixtures. A new deep-soak tub, rainhead shower, or dual sinks each call for proper drain sizing. Undersized or flat-slope runs slow down drainage and can contribute to clogs.
- 1.5-inch drains are typical for standard sinks, but larger vanities benefit from 2-inch.
- Shower and tub drains should be at least 2 inches for good flow.
- Always maintain consistent downward slope (1/4 inch per foot) to main stacks.
- Check for bellies or low spots in the old drain line, correcting during the remodel.
If you're seeing slow or gurgling drains, it's smart to consider professional drain cleaning or even a camera inspection before closing up walls. Our team has seen plenty of build-up in cast iron and older PVC lines in this area.
Pick Reliable Fixtures and Plan for Modern Codes
Modern low-flow and high-efficiency fixtures can save water, but they also bring new installation requirements. Every new faucet or toilet should be sized for existing rough-ins, and P-traps should meet current standards for venting and trap arms. Moisture from loamy Lincolnshire soils and shifting terrain can affect basement and crawlspace installations, making correct drainage and venting even more important.
If you're updating multiple pieces at once, work with professionals for faucet and fixture installation to avoid mismatches and leaks. For larger projects, our bathroom remodeling team can coordinate every step, plumbing, code, and final finish, so the new work lasts through our tough winters and humid summers.
Planning the plumbing side correctly keeps your Lincolnshire remodel on track. For straight answers and hands-on experience, our team is here to help. Call us at 224-524-1213 for advice and a fair price on bathroom plumbing you can count on for decades.