Cost GuideUpdated July 19, 2026
Upgrading a bathroom means more than picking out tiles and fixtures. For many Hickory Hills homes, built in the 1950s and 60s, the real work starts behind the walls. Plumbing in these homes often shows its age. Galvanized supply lines, cast iron drains, and clay-rich soils under your foundation add up to unique remodeling challenges. Overlooking the plumbing can lead to leaks, clogs, or expensive corrections later.
Why Old Plumbing Matters in South Suburban Homes
Plenty of houses around our area still have the original water and waste pipes. Galvanized steel and cast iron were common in mid-century builds. Over decades, these materials corrode, build up scale inside, and may even leak at the joints. In the humid continental climate here, with hard Lake Michigan water, the mineral buildup only speeds up the process. Cold winters and frequent freeze-thaw cycles can stress any line that is close to an outside wall or sits in a crawlspace or slab.
Whenever we open up a wall or floor for a remodel, we check pipe material and condition. It's not unusual to find evidence of small leaks, corrosion, or restrictions due to buildup. Ignoring these can put your new bathroom at risk of water damage or drain backups, so it pays to address them while the room is under construction.
Key Plumbing Checks Before You Start
- Check supply lines and drains: Inspect the incoming water lines for rust, scaling, or leaks. Cast iron or galvanized pipes nearing the end of their lifespan should be replaced, not patched.
- Test water pressure: Low flow often points to clogged old supply pipes or a failing pressure reducing valve. High pressure stresses fixtures and increases the risk of leaks around shutoffs and connectors.
- Assess drain slopes: The flat terrain and clay soil in Hickory Hills can make basement or slab drainage tricky. Proper pitch is crucial for waste pipes, especially if you're moving the toilet, tub, or shower location. Bellies or dips can trap debris and cause recurring clogs.
- Vent stacks and air admittance: Proper venting keeps drains moving and stops sewer gas from leaking back into the house. Older vent stacks can corrode or get blocked over time, leading to slow drains and bad smells.
Getting a professional eye on these issues early is the best way to avoid problems down the line. For homes showing signs of slow drains or backup risk, our drain cleaning services can help you start with a clean slate before closing up the new walls.
Upgrades That Add Value and Comfort
While you're remodeling, it makes sense to bring plumbing up to current standards, not just patch over what's there. Replacing old pipes with copper or PEX can head off future leaks. Upgrading to modern shutoff valves and supply lines for each fixture will make future repairs less invasive.
If your water heater is aging or undersized, now is the time to check capacity. Adding a large tub or body spray shower can quickly overwhelm a small tank. We often advise tying a bathroom remodel into water heater upgrades or at least a full inspection.
Think about adding a pressure-balance valve or thermostatic control to showers for safety and comfort. Insulate any new or relocated pipes near exterior walls to minimize the risk of freeze-ups during Hickory Hills winters.
Hidden Risks Beneath the Floor
If your bathroom sits above a basement or crawlspace, consider the risk of foundation leaks and seepage. Clay-heavy soil in Hickory Hills holds water, making basements prone to seasonal wetness. Floor drain tie-ins and toilet flanges need careful sealing. If you notice musty smells or chronic dampness, we often recommend a check on your sump pit and pump system. Our sump pump services keep under-floor moisture in check during heavy storms or freeze-thaw cycles.
Remodeling is also a good time to inspect for slab leaks, which can increase water bills or even undermine the foundation if ignored. Our leak detection and repair service uses modern detection tools to target hidden trouble before it spreads.
Keeping Sewer Lines and Vents Healthy
Older sewer lines running from the home to the street are often cast iron or clay tile. These can crack, shift, or root-infiltrate over time, especially with the freeze-thaw and shifting soil in our part of Cook County. If your bathroom project involves moving drains or converting a tub to a shower, have us check line condition and vent layout. Adjusting fixture locations may require rerouting or upsizing drains so you stay code-compliant and avoid later backups.
For major work, or if you've had previous problems with slow or gurgling drains, our sewer line services can camera-inspect and hydro jet lines before you finish the remodel. This adds peace of mind that new finishes won't get ripped out for a repair later.
Getting the Plumbing Plan Right
Bathroom remodels run smoother when the plumbing plan matches the final design. Bring your contractor and plumber together up front. Share fixture choices, layouts, and plans for moving anything. This lets our crew pre-rough the pipes, plan hot/cold supply runs, and ensure drain slopes work with the foundation and sewer tie-ins. We'll coordinate with your tile, drywall, and electrical teams to get rough-ins right before finishes go in.
If you're adding specialty fixtures, body sprays, rain heads, or wall-mounted sinks, let us know early so we can properly reinforce framing and routes for water supply. For reliable, code-compliant results, it's also wise to use our faucet and fixture installation service as the last step.
Planning the plumbing from the ground up keeps your bathroom remodel on schedule, within budget, and minimizes the risk of surprise repairs down the line. If you're thinking of starting a project in Hickory Hills, our team is here to help every step of the way. Call us at 708-729-5614 for a consultation.