Thinking about installing a new shower or replacing your bathroom faucets yourself? You’re not alone. Many homeowners ask, “How hard is it to plumb a shower and faucets?”—especially when trying to save on labor costs or tackle a weekend renovation. While the task can be manageable for confident DIYers, it also comes with real risks if done incorrectly. In this guide, we’ll break down exactly what’s involved, so you can decide whether to grab your wrench—or call a pro.
Is Plumbing a Shower and Faucets Really That Difficult?
The short answer: It depends.
For someone with basic plumbing experience—like fixing a leaky faucet or installing a sink—plumbing a shower and faucets may be a challenging but doable weekend project. However, for complete beginners, the complexity increases significantly due to water pressure, hidden pipes, and code compliance.
According to the U.S. Bureau of Labor Statistics, over 480,000 plumbers were employed in 2023, highlighting how specialized the trade remains. A 2022 HomeAdvisor survey found that 62% of DIY plumbing attempts resulted in callbacks to professionals—often due to leaks, improper slope, or code violations.
“Plumbing isn’t just about connecting pipes—it’s about understanding flow dynamics, local codes, and long-term durability,” says Maria Lopez, a licensed master plumber with 15 years of experience in California.
What Tools and Materials Do You Need?
Before you start, gather these essentials:
- Adjustable wrench
- Pipe cutter or hacksaw
- Teflon tape (for threaded connections)
- Plumber’s putty or silicone sealant
- Shut-off valves (if not already installed)
- Supply lines (braided stainless steel recommended)
- Shower valve rough-in kit
- Level and measuring tape
- Safety goggles and gloves
Pro Tip: Always turn off the main water supply before starting—not just the local shut-off valves. One overlooked drip can cause thousands in water damage.
Step-by-Step: How to Plumb a Shower and Faucets
Step 1: Plan Your Layout
Measure your space and confirm the location of existing water lines. Most standard showers use a ½-inch supply line for both hot and cold water. Check local building codes via your city’s website—many require permits for new plumbing work.
Step 2: Install the Shower Valve
This is the heart of your system. The valve controls water temperature and flow.
- Cut into the wall to access studs.
- Mount the valve at 48–52 inches from the floor (standard height).
- Connect hot and cold supply lines using copper or PEX tubing.
- Use a pressure test (fill lines with air to 80 PSI for 15 minutes) to check for leaks before closing the wall.
Step 3: Run Supply Lines to Faucets
For sink faucets:
- Connect flexible supply lines from shut-off valves to faucet tailpieces.
- Hand-tighten, then give ¼ turn with a wrench—over-tightening cracks fittings.
- Apply Teflon tape clockwise on male threads (3–5 wraps).
Step 4: Install Trim and Fixtures
Attach showerhead, tub spout, and faucet handles per manufacturer instructions. Most modern kits include templates for alignment.
Step 5: Test for Leaks
Slowly turn the water back on. Check all connections for drips. Run water for 5–10 minutes to flush debris and verify consistent pressure.
⚠️ Warning: If you smell gas or see water pooling behind walls, stop immediately. Hidden leaks can lead to mold within 24–48 hours (EPA, 2023).
Common Mistakes (And How to Avoid Them)
| Mistake | Consequence | Prevention |
|---|---|---|
| Skipping a permit | Failed inspection, insurance denial | Check local regulations first |
| Using wrong pipe type | Corrosion or bursts | Use PEX or copper for potable water |
| Ignoring slope in drains | Slow drainage, clogs | Maintain ¼” per foot downward slope |
| Over-tightening fittings | Cracked valves or leaks | Snug + ¼ turn is enough |
When Should You Call a Professional?
Consider hiring a licensed plumber if:
- You’re working with galvanized steel pipes (common in homes built before 1970)—they’re brittle and hard to modify.
- Your project involves moving plumbing lines through load-bearing walls.
- You lack tools like a pipe crimper (for PEX) or soldering torch (for copper).
- Local codes require backflow prevention devices or pressure regulators.
The average cost to install a shower and faucet ranges from $600 to $1,800, according to Angi (2025). But that includes warranty, code compliance, and peace of mind.
Pros vs. Cons: DIY vs. Hiring a Pro
| Factor | DIY | Professional |
|---|---|---|
| Cost | $100–$300 (materials only) | $600–$1,800+ |
| Time | 1–3 weekends | 1–2 days |
| Risk | High (leaks, code issues) | Low (licensed & insured) |
| Skill Required | Moderate to advanced | None (for you!) |
| Long-Term Reliability | Variable | Guaranteed |
If you’re unsure, start small—replace a faucet first. Master that, then consider a full shower install.
FAQ Section
Q1: Can I plumb a shower without prior experience?
A: Technically yes, but it’s risky. Without understanding water pressure, venting, or shutoff protocols, you could cause serious damage. Watch tutorial videos, practice on scrap pipes, and never skip the pressure test.
Q2: How long does it take to plumb a shower and faucets?
A: For a skilled DIYer: 8–12 hours over 2 days. Beginners may take 20+ hours. Professionals often finish in under 6 hours.
Q3: Do I need a permit to replace a shower faucet?
A: In most U.S. cities, yes—if you’re altering water lines or installing new fixtures. Minor replacements (like swapping handles) usually don’t require one. Check with your local building department.
Q4: What’s the hardest part of shower plumbing?
A: Installing the rough-in valve correctly. Misalignment leads to trim that doesn’t fit, leaks behind walls, or uneven water temperature. Precision matters.
Q5: Can I use PVC for shower water lines?
A: No. PVC is for drainage only. Use copper, PEX, or CPVC for hot/cold supply lines. CPVC is acceptable in some areas but less durable than PEX under thermal stress.
Q6: How do I know if my plumbing job passed inspection?
A: After installation, schedule an inspection with your city. They’ll check for proper slope, secure supports, correct materials, and leak-free operation. Never close walls before approval.
Conclusion
So, how hard is it to plumb a shower and faucets? It’s a moderate-to-difficult DIY project that rewards preparation and punishes haste. If you’ve successfully handled smaller plumbing tasks and respect local codes, you might pull it off. But if doubt creeps in—even a little—it’s smarter (and safer) to hire a pro.
Your bathroom should be a sanctuary, not a source of stress or water damage. Take your time, prioritize safety, and remember: even expert plumbers started with a single pipe.
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