Bathroom Plumbing Remodel Service
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Bathroom plumbing remodel services relocate supply and drain rough-in to new fixture positions before drywall closes, replace corroded galvanized or polybutylene lines uncovered during demolition, and reconfigure DWV venting that previous work left noncompliant. Bonded Plumbworks’ licensed plumbers coordinate with your contractor before demolition to plan every routing change, completing rough-in on schedule so tile work can proceed. A remodel is the one opportunity to fix decades of plumbing compromises while the walls are open.
A bathroom plumbing remodel is the modification, relocation, or complete replacement of the plumbing supply, drain, and vent systems within an existing bathroom to accommodate a new layout, upgraded fixtures, or code compliance. The scope ranges from minor fixture relocations to complete re-plumbing of the entire room including slab penetrations and vent stack modifications. — Bonded Plumbworks
What Is Bathroom Plumbing Remodel
Bathroom plumbing remodel work falls into three categories depending on the scope of the renovation.
Fixture-in-Place Remodel. The fixtures stay in the same positions but are upgraded to new models. Plumbing work involves disconnecting old fixtures, inspecting and replacing supply lines and shut-off valves, verifying drain connections, and installing new fixtures. This is the simplest and least expensive scope.
Fixture Relocation Remodel. One or more fixtures move to new positions — for example, swapping the toilet and vanity locations, moving the shower from one wall to another, or converting a tub alcove to a walk-in shower. This requires rerouting supply lines, extending or rerouting drain pipes through the floor or wall, and potentially modifying the vent system.
Full Re-Plumb Remodel. All existing plumbing is removed and new supply, drain, and vent systems are installed from scratch. This is typical in older homes with galvanized steel supply pipes, cast iron drains, or lead-joint connections that have reached end of life.
Galvanized steel supply pipes and cast iron drain pipes are common in homes built before 1980. Galvanized pipes corrode internally, reducing water pressure and introducing rust into the water. Cast iron drains develop scale buildup and can crack or belly over time. A bathroom remodel is the ideal time to replace these aging materials with PEX supply lines and PVC drain piping. — Bonded Plumbworks, serving since 2006
When to Schedule Bathroom Plumbing Remodel
Bathroom plumbing remodel is needed when changing fixture layout, replacing aging galvanized supply or cast iron drain pipes, and converting a bathtub to a walk-in shower requiring drain relocation.
- You are renovating a bathroom and changing the fixture layout
- The bathroom has galvanized supply pipes or cast iron drains that need replacement
- You are converting a bathtub to a walk-in shower (requires drain relocation)
- Adding a double vanity where a single sink existed
- Upgrading to a freestanding tub that requires new supply and drain placement
- The existing shut-off valves do not function and need replacement
- A bathroom remodel requires a plumbing permit and you need licensed plumbing work
How It Works
Step 1: Pre-Demolition Coordination. We meet with you and your general contractor before demolition to review the new bathroom layout, identify which pipes will be affected, plan supply and drain routing for the new fixture positions, and schedule the rough-in work.
Step 2: Demolition-Phase Plumbing. Once walls and flooring are opened, we remove old fixtures, cap existing supply and drain lines, and assess the condition of the exposed piping. We identify any necessary upgrades (galvanized to PEX, cast iron to PVC, gate valves to quarter-turn ball valves).
Step 3: Rough-In Plumbing. We install new supply lines, drain pipes, and vent connections at the positions required by the new layout. Every drain is set at the code-required slope, every supply line includes a new shut-off valve, and shower valves are installed with anti-scald protection.
Step 4: Rough-In Inspection. The building department inspects all concealed plumbing before walls and floors are closed. We pressure-test supply lines at 60 PSI for 30 minutes and flood-test drains to verify watertight joints. Bathroom Plumbing Remodel inspection gives you a live view of the problem before any work starts. You review the findings and approve the quote before any repair begins.
Step 5: Fixture Installation. After tile, flooring, and wall finishes are complete, we return to install the toilet, vanity/sink, shower trim, bathtub, and all faucets. Each connection is tested and verified leak-free.
Step 6: Final Inspection and Walkthrough. We demonstrate all fixtures, verify shut-off valves operate correctly, and walk you through any features specific to your new fixtures (touchless faucets, rain shower controls, dual-flush toilets).
Shower valve rough-in is the most time-sensitive coordination point in a bathroom remodel. The valve body must be set at the correct depth relative to the finished wall surface — too deep and the trim plate does not cover the opening, too shallow and the handle sits proud of the wall. Bonded Plumbworks sets shower valves using the manufacturer’s depth gauge specific to the tile or panel thickness your contractor is installing. — Bonded Plumbworks
Benefits vs. Alternatives
| Remodel Scope | Addresses Aging Pipes | Allows Layout Changes | Code Compliance Update | Cost |
|---|---|---|---|---|
| Full Re-Plumb | Yes | Yes | Complete | $$$ |
| Fixture Relocation | Selective | Yes | Partial | $$ |
| Fixture-in-Place | Selective | No | Selective | $ |
| Cosmetic Only (no plumbing) | No | No | No | Lowest |
A cosmetic-only remodel that changes tile, paint, and lighting without addressing the plumbing behind the walls is a missed opportunity. If the walls are open, upgrading the plumbing at the same time costs a fraction of what it would cost as a standalone project later.
Pricing
- Fixture-in-place remodel (plumbing scope): $1,500 - $3,500
- Fixture relocation remodel: $3,500 - $7,000
- Full re-plumb remodel: $5,000 - $12,000
- Slab penetration for drain relocation: $500 - $1,500 additional
Pricing covers the plumbing scope only — supply, drain, vent, fixture installation, and inspection. Fixtures are priced separately based on your selections. Bonded Plumbworks provides a detailed written estimate after reviewing the new layout.
Our Qualifications
Bonded Plumbworks plumbers are state-licensed and experienced in every scope of bathroom remodel plumbing, from simple fixture swaps to complete re-plumbing of slab-on-grade and elevated-construction homes. Since 2006, we have provided remodel plumbing services, coordinating with general contractors, designers, and tile installers to deliver seamless results.
Bonded Plumbworks coordinates plumbing rough-in timing with the general contractor’s construction schedule to avoid delays. We provide fixture rough-in dimensions to the tile installer for accurate placement of shower niches, valve openings, and supply stubs. — Bonded Plumbworks, established 2006
FAQ
Do I need a plumbing permit for a bathroom remodel? If you are relocating fixtures, adding fixtures, or modifying supply or drain lines, yes. A permit is required for any work that changes the plumbing system. Simple fixture replacements in the same location may not require a permit, but we recommend verifying with your local building department.
Can I change my bathroom layout during a remodel? Yes. Moving fixtures is a common part of bathroom remodels. The main considerations are the location of existing drain and vent connections and whether slab cutting is needed. Bonded Plumbworks evaluates the cost and feasibility of your desired layout during the planning phase.
Should I upgrade my pipes during a remodel? If your home has galvanized steel supply pipes or cast iron drain pipes, a remodel is the ideal time to upgrade. The walls and floors are already open, so the additional cost of pipe replacement is a fraction of what it would be as a standalone project.
How much does bathroom plumbing remodel cost? Bathroom Plumbing Remodel typically costs $500 to $12,000 for most residential jobs. The final price depends on the scope of work, materials required, and site conditions. Bonded Plumbworks provides a written estimate before starting any bathroom plumbing remodel work, so you know the exact cost upfront. Call (855) 557-9600 for a same-day quote.
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Schedule Your Bathroom Plumbing Remodel
Get the plumbing right the first time. Call Bonded Plumbworks at (855) 557-9600 to schedule bathroom remodel plumbing. We coordinate with your contractor from design through final inspection. Every bathroom plumbing remodel service includes a 90-day guarantee on bathroom plumbing remodel work, covering parts and labor.