How Much for a Plumber to Install a Bathtub? (2024 Cost Guide)

Thinking about upgrading your bathroom with a new bathtub—but unsure what it’ll cost? You’re not alone. Many homeowners ask, “How much for a plumber to install a bathtub?”—especially when balancing budget, quality, and timing. Whether you’re replacing an old tub or adding one during a remodel, understanding the true cost helps you avoid surprises and hire the right pro. Let’s break it all down clearly, fairly, and with real numbers you can trust.

What’s the Average Cost to Install a Bathtub in 2024?

According to HomeAdvisor and Angi (formerly Angie’s List), the national average cost for a plumber to install a bathtub in the U.S. ranges from $1,500 to $5,000, with most homeowners paying around $3,200.

But that’s just the starting point. Your final price depends on several key factors—some obvious, others easily overlooked.

💡 Pro Tip: Labor typically makes up 40–60% of the total cost. Don’t just choose the cheapest quote—experience matters when plumbing, waterproofing, and structural support are involved.

Key Factors That Affect Bathtub Installation Costs

1. Type of Bathtub

Not all tubs are created equal. Here’s how material and style impact price:

Freestanding and cast iron tubs often require extra labor for plumbing rerouting and floor support—adding $300–$1,000+ to your bill.

2. Removal of Old Tub

If you’re replacing an existing tub, removal costs $100–$300. Complications like damaged subfloor or mold can increase this significantly.

3. Plumbing Modifications

Moving drain lines, supply pipes, or adding a new shower valve? That’s $200–$1,200+ extra. Older homes often need updated pipes—especially if they contain galvanized steel , which corrodes over time.

4. Tile & Surround Work

Installing a new tub often means redoing walls. Tile installation alone runs $10–$30 per sq. ft. A full surround (3 walls) can add $1,000–$3,000.

5. Location & Accessibility

A second-floor bathroom? Tight stairwell? Expect a 10–20% labor surcharge for difficult access.

Step-by-Step: What Happens During Professional Bathtub Installation

Hiring a licensed plumber ensures safety and code compliance. Here’s what the process typically looks like:

1. Assessment & Prep (Day 1)
   • Turn off water supply.
   • Remove old tub, inspect subfloor and wall studs.
   • Check for leaks, mold, or rot—repair if needed.

2. Plumbing Adjustments (If Required)
   • Reroute drainpipe to match new tub’s overflow/drain location.
   • Install new shut-off valves or P-trap if outdated.
3. Set the New Tub
   • Place tub on level surface; use shims if needed.
   • Secure to wall studs with corrosion-resistant screws.
   • For heavy tubs (e.g., cast iron), reinforce floor joists.
4. Waterproofing & Sealing
   • Apply silicone sealant around edges.
   • Install backer board if tiling.
5. Final Connections & Test
   • Reconnect water lines.
   • Fill tub and check for leaks at drain, overflow, and faucets.
   • Run water for 15–20 minutes to test drainage.

⚠️ Never skip the leak test—a small drip today can mean $2,000 in water damage tomorrow.

DIY vs. Hiring a Pro: Is It Worth the Risk?

Many homeowners consider DIY to save money—but bathtub installation is rarely a beginner-friendly project.

DIY Pros:

• Save $800–$2,000 on labor.
• Full control over timeline.

DIY Cons:

• Risk of improper drain slope → slow drainage or backups.
• Voided manufacturer warranty if not installed per specs.
• Potential code violations (most areas require permits for plumbing changes).

📊 A 2023 study by the National Association of Home Builders found that 68% of DIY bathroom remodels required professional fixes within 18 months—often costing more than hiring a pro upfront.

Unless you have plumbing experience and the right tools (e.g., pipe threaders, level lasers, moisture meters), hire a licensed plumber. Look for one with:

• State license & liability insurance
• At least 5 years of bathroom-specific experience
• Reviews mentioning “clean work” and “on-time completion”

How to Save Money Without Sacrificing Quality

You don’t need to overspend—but smart choices prevent costly mistakes:

• Choose an alcove tub: Fits standard openings, minimal plumbing changes.
• Schedule off-season: Many plumbers offer 10–15% discounts in winter.
• Bundle services: Get tub install + faucet replacement in one job for a better rate.
• Reuse existing fixtures: Keep your current faucet if compatible (saves $150–$400).
• Get 3+ quotes: Compare line-item estimates—not just totals.

FAQ: Your Top Questions Answered

Q: How long does it take a plumber to install a bathtub?
A: Most standard installations take 1–2 days. Complex jobs (freestanding tub + tile work) may take 3–5 days.

Q: Do I need a permit to install a new bathtub?
A: Yes, in most U.S. cities—especially if you’re moving plumbing lines. Your plumber usually handles this, but confirm before work begins.

Q: Can a plumber install a bathtub without replacing the floor?
A: Often, yes—if the subfloor is solid and dry. But if there’s water damage or soft spots, floor repair is non-negotiable for safety.

Q: What’s included in a plumber’s installation fee?
A: Typically: removal of old tub, setting new tub, connecting drain/water lines, leak testing, and cleanup. Tile, fixtures, and permits are usually extra.

Q: How much does it cost to install a walk-in bathtub?
A: Walk-in tubs cost $5,000–$12,000+ installed due to specialized plumbing, safety features, and longer labor time.

Q: Should I replace my tub before or after tiling?
A: Always install the tub first. Tile should overlap the tub flange to prevent water from seeping behind walls.

Final Thoughts

Knowing “how much for a plumber to install a bathtub” isn’t just about the number—it’s about value, safety, and peace of mind. While prices vary, investing in a qualified professional protects your home, your health, and your wallet in the long run.

Got a bathroom upgrade in the works? Share this guide with a friend who’s remodeling—or tag them on social! 💬👇

Your dream soak starts with the right install.