Bathroom Plumbing Upgrades in Thornton, IL
The plumbing behind your new bathroom is the quiet hero — if the piping isn’t done right, issues like slow drains, hidden leaks behind tile, or erratic shower temperatures often show up weeks or months later. Precise plumbing rough-in before drywall goes up is key to a bathroom that functions perfectly for years. If you discover any damp spots or water damage when opening walls, give us a call — we’re experts at leak detection and can identify and fix problems before they cause bigger damage.
When you reach us at 708-726-4091 for your bathroom project, here’s our approach: a cosmetic update swapping faucets, toilets, or showerheads in the same spots usually takes a day or less. If you want new layouts — moving the toilet, turning a tub into a walk-in shower, or adding sinks — we’ll handle the rough-in plumbing including drains, vents, and supply pipes. That requires permits and inspections, which we coordinate from start to finish.
One bit of advice I always share: lock down your fixture choices before we set pipe rough-in measurements. Toilets, shower valves, and tub fillers all have specific rough-in distances. Getting this right up front saves you from costly do-overs if your fixtures differ from initial specs.
Our Bathroom Plumbing Services
Shower & Tub Plumbing Installation
Setting shower valves correctly is essential — the valve must be installed at the right height and depth behind the finished wall to fit your trim kit and function smoothly. We install pressure-balance valves compliant with Illinois code to prevent scalding, thermostatic valves for consistent temperature control, and multi-outlet valve systems for features like rain showers and body sprays.
Converting a tub into a shower means cutting the floor slab for a new drain, repositioning the drain for proper slope, building out the shower base for waterproofing, and rerouting water lines from the old tub filler to the new shower valve. We’ll explain the full process, timeline, and costs before starting. We also install plumbing for freestanding tubs with floor or wall-mounted fillers.
Toilet Setup & Relocation
Replacing a toilet in the same spot is a simple swap available via our fixture installation service. Moving the toilet to a new wall or location involves rerouting the drain, which may mean cutting concrete or subfloor. We install the flange at the right height for your finished floor, extend the soil stack connection if needed, and ensure vent pipes meet code. This work requires permits and inspections.
We install all styles: standard, comfort-height, wall-hung, and dual-flush models. If you’re adding a bathroom or upgrading, consider if your water heater can keep up with extra demand. For accessibility upgrades like grab bars or curbless showers, let us know early so we can coordinate wall blocking with your builder.
Vanity and Sink Plumbing
Whether you’re switching from one sink to two, changing a pedestal to vanity, or relocating your vanity, we handle all required supply and drain adjustments. Adding a second sink involves extending hot and cold lines and arranging drain lines with either shared or separate P-traps depending on your setup. Changing vanity size means we’ll adjust pipe stub-outs accordingly.
We install faucets, drains, supply lines, and P-traps as part of the job. While we’re at it, we recommend replacing old gate valves with modern quarter-turn ball valves — it’s a small fix now that prevents leaks later. For new drain locations, we also take care of drain and P-trap connections as part of the rough-in.
Full Rough-In Plumbing for Additions
Building a new bathroom in your Thornton home? Whether it’s a basement bath, half bath, or en-suite, we provide the complete plumbing rough-in: hooking up supply lines to your main water source, installing drain and vent piping properly tied into existing systems, placing floor flanges flush with finished floors, and coordinating inspections. We work closely with your GC to ensure everything is inspected before walls are closed up.
Bathroom Plumbing Checklist
- Install shower valve, trim, and showerhead
- Connect tub drain, overflow, and filler
- Remove and install toilet with wax ring and supply line
- Hook up vanity faucet, drain, and water supply
- Replace old gate valves with ball valves
- Reroute drain lines when changing layout
- Install or adjust vent pipes
- Set up bidet seat or standalone bidet connections
- Manage permits and inspections
Tips for a Successful Bathroom Remodel
- Pick fixtures before rough-in: Every model has specific rough-in dimensions — decide early.
- Keep fixture locations if you can: Moving plumbing lines adds labor and cost.
- Upgrade shutoff valves while open: Old valves often fail and cause leaks.
- Check your water heater: Bigger tubs or extra showers may need more hot water capacity (learn more).
- Plan permits ahead: Rough-in inspections impact your schedule— involve your plumber early.
Bathroom Remodeling FAQ
If you’re just swapping fixtures in the same spots, usually no permit is required. But if you’re moving or adding drain lines, supply pipes, or vents around, a permit is necessary in most areas of Thornton. We handle all the paperwork and inspections so your project stays up to code. Skipping permits can cause big headaches down the road with insurance or resale.
Yes, but it means rerouting drain piping, which may require cutting subfloor or concrete, moving vent connections, and extending supply lines. It adds time and cost compared to replacing in place. We’ll give you a clear quote for moving plumbing so you can decide if it fits your budget.
It's best to involve your plumber before walls are opened. We can advise on rough-in measurements, what’s practical with your existing vent and drain layout, and help you understand the permit process. Calling last minute after demo risks rushed rough-in installs and scheduling conflicts.
Definitely. We coordinate with GCs, designers, and homeowners directly. We manage the plumbing scope and inspections to fit your project timeline. Give us a call at 708-726-4091 to talk about your schedule and plumbing needs.