Bathtub Drain Replacement Service
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Bathtub drain replacement removes corroded drain assemblies that leak at the tub connection, clears the slow-draining restriction at the fitting or P-trap, and upgrades outdated trip-lever stoppers to push-pull or toe-touch mechanisms — restoring drainage and sealing performance in a single service call. Bonded Plumbworks’ licensed plumbers extract the old drain fitting with a drain key, replace the drain body, overflow plate, and stopper as a matched assembly, and test under a full tub fill before completion.
Bathtub drain replacement is the removal of the existing tub drain fitting (the flange and crosshair visible at the bottom of the tub) and overflow assembly, and the installation of a new drain assembly with a watertight connection to the drain shoe and trap piping below. The replacement may include a new stopper mechanism (push-pull, toe-touch, pop-up, or trip lever) and overflow cover plate. — Bonded Plumbworks
What Is Bathtub Drain Replacement
A bathtub drain assembly consists of three components: the drain flange (the visible fitting at the tub bottom), the drain shoe (the elbow fitting below the tub that connects the drain flange to the horizontal trap pipe), and the overflow assembly (the fitting at the upper front of the tub that prevents the tub from overflowing). The stopper mechanism — which controls water retention for bathing — operates through one of these components.
Over time, the drain flange threads corrode (especially in cast iron and brass fittings), the plumber’s putty seal fails, the stopper mechanism wears out, and the drain shoe gasket deteriorates — all causing slow drainage or active leaks beneath the tub. Replacement addresses all of these failure points with new components.
The most common bathtub drain failure is corrosion of the brass drain flange and crosshair caused by prolonged exposure to hard water and cleaning chemicals. The corrosion weakens the threaded connection to the drain shoe, eventually allowing water to leak between the tub surface and the drain fitting. This leak drips onto the subfloor and can cause rot, mold, and structural damage before it becomes visible from below. — Bonded Plumbworks, serving since 2006
When to Schedule Bathtub Drain Replacement
Bathtub drain replacement is needed when slow drainage persists after trap cleaning, when water leaks below the tub at the drain connection, and when the stopper no longer holds water for bathing.
- The tub drains slowly despite clearing the hair catcher and trap
- Water leaks below the tub around the drain connection
- The drain flange is visibly corroded, cracked, or pitted
- The stopper mechanism does not hold water for bathing
- The trip lever overflow mechanism is jammed or broken
- You are upgrading bathroom fixtures and want a matching drain finish
- Staining or water damage appears on the ceiling below a second-floor tub
How It Works
Step 1: Access and Assessment. We access the drain connections from below the tub (through an access panel, crawl space, or the ceiling of the room below) to assess the drain shoe, trap, and overflow connection condition. Bathtub Drain Replacement 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 2: Drain Removal. We remove the old drain flange using a drain removal tool that fits into the crosshair or flange body. Corroded drains may require an extraction tool. We remove the overflow plate and linkage assembly.
Step 3: Drain Shoe Inspection. We inspect the drain shoe and trap pipe. If the shoe is corroded or damaged, it is replaced along with the drain flange. If the shoe is sound, we clean the threads and sealing surface.
Step 4: New Drain Installation. We install the new drain flange with plumber’s putty or silicone gasket, tighten it into the drain shoe to create a watertight seal, install the new overflow assembly and stopper mechanism, and connect all components.
Step 5: Testing. We fill the tub to test the stopper hold, drain the tub to verify flow rate, and inspect all connections from below for leaks under full drainage load.
Modern toe-touch and push-pull drain stoppers are simpler and more reliable than the traditional trip lever mechanism. Trip lever assemblies use a linkage rod inside the overflow tube that frequently jams, disconnects, or corrodes. Toe-touch stoppers operate with a simple push of the toe — no moving parts below the tub surface and no linkage to fail. — Bonded Plumbworks
Benefits vs. Alternatives
| Approach | Fixes Leak | Upgrades Stopper | Addresses Corrosion | Cost |
|---|---|---|---|---|
| Full Drain Assembly Replacement | Yes | Yes | Yes | $$ |
| Stopper Replacement Only | No | Yes | No | $ |
| Drain Flange Only | Partial | No | Partial | $ |
| Drain Cleaning (no replacement) | No | No | No | $ |
Full drain assembly replacement addresses all common failure points in one service call. Replacing only the stopper or flange leaves the other aging components in place.
Pricing
- Bathtub drain assembly replacement (accessible from below): $250 - $500
- Drain shoe replacement (in addition to flange): $300 - $600
- Stopper mechanism upgrade only: $100 - $200
- Access panel installation (if needed): $150 - $300
Pricing depends on tub type, access configuration, and whether the drain shoe and trap require replacement in addition to the flange and stopper.
Our Qualifications
Bonded Plumbworks plumbers are state-licensed and experienced in bathtub drain replacement for all tub types — alcove, freestanding, drop-in, and corner installations. Since 2006, we have replaced thousands of bathtub drains.
Bonded Plumbworks carries replacement drain assemblies in multiple finishes (chrome, brushed nickel, oil-rubbed bronze) and stopper types (toe-touch, push-pull, pop-up) to provide same-day service for most bathtub drain replacements. — Bonded Plumbworks, established 2006
FAQ
How do I know if my tub drain is leaking? Check for water stains, bulging, or mold on the ceiling below a second-floor tub. For first-floor tubs on slab, look for musty odors near the tub or discoloration on the floor around the tub base.
Can I replace just the stopper without replacing the drain? If the drain flange and shoe are in good condition and the only issue is the stopper mechanism, yes. We can replace just the stopper with a modern toe-touch or push-pull model.
How much does bathtub drain replacement cost? Bathtub Drain Replacement typically costs $100 to $600 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 bathtub drain replacement work, so you know the exact cost upfront. Call (855) 557-9600 for a same-day quote.
Will the new drain match my other fixtures? We carry drain assemblies in standard finishes. For specialty finishes, we can order matching components from the tub manufacturer.
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Schedule Your Bathtub Drain Replacement
Fix the drain before the leak causes hidden damage. Call Bonded Plumbworks at (855) 557-9600 to schedule bathtub drain replacement. Every bathtub drain replacement service includes a 90-day guarantee on bathtub drain replacement work, covering parts and labor.