How to Hire a Licensed Plumber (2026 Guide)

There are two ways people hire a plumber. The first is planned — you're remodeling a bathroom, replacing a water heater, or repiping a house. You have time to get quotes, check licenses, and compare. The second is at 11 PM on a Saturday when your water heater bursts and there's an inch of water in your garage.

Both situations require a licensed plumber. But how you evaluate them is different, and the pricing is different. This guide covers both.

The License You're Looking For

Plumbing licenses are state-specific:

• California: C-36 Plumbing Contractor
• Texas: Master Plumber or Plumbing Contractor (issued by TSBPE, not TDLR — Texas has a separate board just for plumbers)
• Florida: CFC — Certified Plumbing Contractor

A general contractor with a B license can coordinate a remodel that includes plumbing, but the actual pipe work has to be done by someone with a plumbing license. If your project is primarily plumbing — water heater, repipe, sewer line — hire the plumber directly.

Planned Work: How to Get the Right Price

For scheduled jobs, the process looks like this:

1. Get three quotes. Not two, not one. Three. You're not just comparing prices — you're comparing diagnoses. If two plumbers say you need a repipe and one says you need a patch, you have useful information.
2. Ask whether the diagnostic is free. Most plumbers charge $75–$150 for a service call, and many waive it if you hire them. This is standard. What's not standard is a plumber who insists on $300 for a "camera inspection" before they've even looked at the problem.
3. Get the quote in writing. It should break down materials and labor separately. "Bathroom rough-in — $3,800" is less useful than "materials $900 + labor $2,400 + permit $300 + tax $200."
4. Check the license before you sign. Active, plumbing classification, no recent disciplinary actions.

Emergency Work: What Changes

At 11 PM with water spraying from a pipe, you're not getting three quotes. Here's what you can still do:

• Know where your main shutoff is. Turning off the water buys you time. You go from emergency to urgent, which means you can make a phone call instead of hiring the first person who answers.
• Ask about after-hours rates upfront. Emergency service typically runs $200–$400 per hour vs. $100–$200 during business hours. This is normal, not gouging — ask the rate before they roll the truck.
• Get a diagnosis before authorizing repair. A good plumber will tell you what's wrong and give you a price before they start working. If they start disassembling things without telling you what it'll cost, stop them.

And even in an emergency — save the license number from the invoice and check it the next day. If they weren't licensed, you'll want to know for your records.

The Camera Inspection Question

Camera inspections are the most commonly upsold plumbing service. A plumber runs a camera down your sewer line or into your pipes to see what's going on. They cost $200–$500.

When it's legitimate:

• Recurring drain backups that snaking doesn't fix
• Buying a house and want to check sewer line condition
• Roots are suspected in the sewer line
• Planning a major repipe and need to assess pipe condition

When it's an upsell:

• The problem is obviously a clogged kitchen drain (just snake it)
• They insist on a camera before even trying a basic diagnostic
• They use the camera footage to recommend a $10,000 sewer replacement when a $500 spot repair would work

Sewer Line Work: Trenchless vs. Traditional

If you need sewer line work, you'll be quoted two approaches:

If a plumber only offers traditional trenching and doesn't mention trenchless as an option, get a second opinion. Not every plumber offers trenchless — but the good ones will tell you it exists even if they refer you to a specialist.

Fair Pricing for Common Jobs

The Upsell Pattern to Watch For

The most common plumbing scam isn't a fake license — it's a real plumber who turns a $300 repair into a $5,000 replacement. It usually sounds like: "I could patch this, but honestly the whole thing needs to go. It'll just fail again in six months."

Sometimes that's true. Often it's not. When you hear it:

• Ask them to show you the problem (a good plumber will)
• Ask what happens if you do the repair instead of the replacement
• Get a second opinion from another licensed plumber before committing to anything over $2,000