Critical Plumbing Checks Before Remodeling Your Bloomingdale Bathroom

TroubleshootingUpdated June 8, 2026

Jumping into a bathroom remodel without looking at the plumbing behind the walls can catch even experienced homeowners off guard. Around Bloomingdale, a lot of properties date from the 1970s right through the 1990s, so the pipes and fittings behind your tile might be past their prime. Ignoring old supply lines or undersized drainage can turn a bathroom upgrade into a headache fast, especially with our climate and the kind of soil we build on in DuPage County.

Why Plumbing Planning Matters in Bloomingdale

Our area's mix of clay-heavy soil and a high water table means basements and foundations need protection from leaks. That same soil puts extra pressure on underground pipes, and with local weather swinging from frozen winters to humid summers, pipes expand and contract all year. We see it cause leaks and even pipe bursts after a cold snap. Bathroom remodels are a good time to check if supply and drain lines are holding up, and to fix what isn't before new finishes go in.

Check Your Existing Pipes, Don't Guess

If your home was built before the 1990s, you may have galvanized steel pipes. Over time, these corrode inside, causing low water pressure or rusty water. In our experience, we often recommend inspecting them during any remodel. If you do find corroded or leaking sections, it's easier to upgrade to copper or PEX when walls and floors are already opened. We handle pipe repair and repiping for remodels and always advise homeowners to check for leaks, especially in older houses.

Plan for New Fixtures, Sizing and Placement

New fixtures might need more than just switching out faucets. If you're moving a tub, shower, or toilet, think about drain slope and venting. Inadequate slope or venting leads to slow drains or sewer gas. For big upgrades, especially if you want a rain shower or jetted tub, we recommend checking if your current supply lines can deliver enough water. A water-saving toilet or shower is great, but only if the supply and drain lines match the manufacturer's specs. Our team often works on faucet and fixture installations to make sure everything lines up and seals tight.

Water Pressure, Drainage, and Hidden Problems

Moderately hard water from Lake Michigan can cause mineral buildup inside pipes and fixtures over time. If you notice low pressure or cloudy tap water, it's worth checking for scale or partial blockages. Also, with Bloomingdale's clay soil and freeze-thaw cycles, drains can settle or crack underground. If your bathroom is on the first floor or in a basement, you may need a backwater valve or sump pump to keep groundwater and sewer backups out. We see these issues a lot and always recommend homeowners consider their location. Our sump pump services can help prevent a finished basement bathroom from ending up flooded after a storm.

  • Test water pressure at each fixture before starting work.
  • Look for water stains or soft drywall, signs of hidden leaks.
  • Run each drain and check for gurgling, slow emptying, or sewer odors.
  • Feel pipes for cold spots in winter (possible freeze risk).
  • Inspect shutoff valves for corrosion or leaking stems.

Don't Overlook the Water Heater and Main Lines

Adding a soaking tub or multiple showerheads increases the demand on your water heater and supply lines. Before you start, think about capacity. A standard tank may not keep up with larger fixtures. If you're unsure, check out our water heater services for help sizing and updating your system. We also recommend checking the main shutoff valve and the incoming water line for any rust or scale. These are easier to fix during a remodel than after you put new tile down.

Watch for Sewer Line and Drain Issues

Old drain lines, especially original cast iron, can clog or crack after decades underground. If you suspect any trouble, a camera inspection now can prevent a big problem down the road. We take care of sewer line repairs and inspections to keep remodels on schedule and prevent backups. Slow drains or gurgling toilets are warning signs that shouldn't be ignored during planning.

If you're getting ready for a bathroom remodel in Bloomingdale, our local crew is ready to help you get the plumbing right from the start. Call us at 331-296-4541 to discuss your project. We'll help you spot issues before the work begins so your new bathroom is built to last.

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Frequently Asked Questions

If your home has galvanized supply lines from the 1970s to 1990s, we usually suggest an inspection for corrosion or buildup. Upgrading to copper or PEX during a remodel often saves trouble down the line, especially if leaks or pressure issues are found.

If you're adding large fixtures or a soaking tub, your existing tank might not have enough capacity. It's best to check the gallon size and recovery rate against your planned fixtures. We can help you determine if an upgrade is needed.

Common issues include corroded galvanized pipes, slow drains from old cast iron, and hidden leaks from freeze-thaw cycles. Checking supply and drain lines before finishing work helps prevent expensive repairs after the remodel.

Watch for slow draining sinks or tubs, gurgling sounds, or recurring clogs. These signs often point to buildup or deteriorating pipes. A camera inspection gives a clear answer if you're unsure.

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