How to Start a Plumbing Business in Texas: Licenses, Costs & Insurance

In Texas, plumbing is licensed statewide by the Texas State Board of Plumbing Examiners (TSBPE). To run a plumbing company, you work your way up to a Master Plumber license, then add the Responsible Master Plumber designation with proof of liability insurance.

This guide is for plumbers moving into ownership and for owners setting up a plumbing company in Texas. Forming a business, or holding a worker’s license, doesn’t by itself give the company the right to contract for plumbing work.

Reviewed October 1, 2026. Some links are affiliate links; we may earn a commission. Paid providers are optional and don’t issue plumbing licenses.

Follow the TSBPE license path to Responsible Master Plumber

The TSBPE issues four plumbing licenses: Tradesman Plumber-Limited, Journeyman Plumber, Master Plumber and Plumbing Inspector. Licenses renew yearly and require continuing education. Most people start by registering as a Plumber’s Apprentice ($15). Hours worked before you register don’t count toward a license.

• Journeyman Plumber: at least 8,000 hours in the trade, plus a TSBPE-approved 48-hour course or a U.S. Department of Labor apprenticeship program, and you must be registered as an apprentice or hold a Tradesman Plumber-Limited (or an out-of-state journeyman or master) license (TSBPE journeyman page).
• Master Plumber: hold a journeyman license for at least two years, or one year plus a DOL-approved apprenticeship program (TSBPE master page).
• Responsible Master Plumber (RMP): a Texas master plumber in good standing who files proof of at least $300,000 in commercial liability insurance. The RMP is responsible for permits, inspections and supervision on the company’s work, and can be the RMP for only one company at a time (TSBPE RMP page).

State fees listed by TSBPE: journeyman exam $40 and initial license $40; master exam processing $25, a $128.50 exam fee paid to Pearson VUE, and a $75 initial license; RMP designation $225 initially and $300 to renew. Check the TSBPE pages before paying, since fees can change.

Write down the services your license will cover and who is responsible for supervising the work. Ask separately about specialty work such as medical gas, backflow testing, gas piping, septic systems or well work. Don’t assume every job involving pipe falls under the same license. Plan what happens if the person whose license the company relies on leaves.

Set up the business in the same name you will license

Choose the ownership structure before you finish license applications, insurance and banking. An LLC is an option, not a substitute for plumbing licensing. Our Texas LLC guide explains filing choices and costs so you can compare filing yourself with optional help.

Use the same legal name, and any registered trade name, on license records, estimates, insurance certificates and payment accounts. Decide who can sign contracts, approve supplier purchases and use the bank account. If there are several owners, put licensing and money responsibilities in your ownership agreement.

Use the Texas business requirements checklist for general setup, such as state tax accounts and registrations. Ask your city or county about local business licenses, zoning and storage rules for your office or shop, even if it’s in your home.

Open a separate business bank account and keep job-by-job records before you take deposits. Get an EIN when you need one through the IRS’s free EIN application. Track materials, labor, permit fees and customer payments separately, so unpaid invoices don’t look like cash in the bank.

Arrange plumbing liability coverage and workers’ compensation

For coverage choices, licensing limits and quote preparation, see our Texas plumbing insurance guide.

The key Texas plumbing minimum is the RMP requirement: at least $300,000 in commercial general liability, shown on TSBPE’s own Certificate of Insurance form signed by your insurance agent (see the RMP page). Keep it in force; the RMP’s supervision duties include maintaining this coverage.

Texas generally doesn’t require private employers to carry workers’ compensation; employers without it are “nonsubscribers” with notice and reporting duties (TDI nonsubscriber information). Many general contractors and public jobs require it anyway, so ask before you bid.

Tell the insurer about drain cleaning, digging, gas piping, commercial work, subcontractors and the tools you keep in your van. Ask about completed work, water-damage claims, exclusions, commercial auto and equipment theft. Make sure coverage is active before you book the work; a quote request isn’t a policy.

Check permits and site access before promising a completion date

Permits and inspections are handled by the city (and some counties or utility districts) where the work is. Many Texas cities also require plumbing contractors to register locally before pulling permits. Ask each city you work in.

• Water heaters and fixture swaps: check whether the actual job needs a permit and inspection instead of assuming replacements are exempt.
• Repiping and remodels: plan inspections before walls are closed, and agree who repairs drywall and finishes.
• Sewer and underground work: call for utility locates before digging, and find out whether street or utility approvals are involved.
• Apartments, condos and managed buildings: agree on access, water shutoff notices, work hours and any paperwork the property manager needs.

Write down existing damage and access limits before you start. Don’t promise a permit waiver or an insurance payout you haven’t confirmed.

Budget for a Texas service operation, not just the license

Build the budget around the services you’ll open with: repairs and replacements, drain work, remodels or commercial subcontracting. Price the actual equipment and insurance before committing to a van or taking on debt. You can often rent specialty cameras and drain machines at first if the jobs justify it.

Example launch cash plan—not surveyed Texas prices

Category	Example allowance
Setup and first insurance payments	$3,000 placeholder for applications, exams, company setup and first insurance payments; replace it with your actual fees and quotes.
Tools and opening parts	$5,000 to fill gaps in an existing toolkit and stock common repair parts.
Vehicle preparation	$2,000 for a suitable vehicle you already own; doesn’t include buying a van.
Working cash	$8,000 assumed reserve for supplier bills, fuel and overhead until customer payments arrive steadily.
Example total	$18,000, not counting a vehicle purchase, employee payroll, major specialty equipment or household living costs.

Plan weekly cash needs, including a late invoice or a callback you can’t bill. New businesses may not meet a lender’s time-in-business or revenue rules. Compare total repayment, fees, payment schedule and personal guarantees before you borrow; approval isn’t guaranteed. For Texas microlenders, state programs and SBA offices, see Texas business loans by stage.

Price the job, document the scope and collect payment

Set a clear service-call or diagnostic fee. A short repair can still involve driving, picking up parts, paperwork and a return trip, so the wage you want isn’t the same as your billing rate. The national plumbing pricing example shows how the same monthly cost target leads to different rates at different numbers of billable hours.

Before work starts, write down the approved repair, included materials, who pulls the permit, what restoration isn’t included and how payment works. Get approval for extra work you find after opening a wall or scoping a drain. Have Texas contract and notice rules reviewed before you adopt standard paperwork.

Sort out sales tax before you copy an invoice template. States treat contractors differently: in some, you pay tax on materials you buy; in others, you charge tax on some jobs. Ask the Texas tax agency or your bookkeeper how it applies to your repair, installation and new-construction work. Our Texas business setup guide covers state tax registration.

Check your payment system’s fees, payout timing and dispute process. Keep the customer’s approval, before-and-after photos and completion notes with the invoice. For commercial jobs, plan for progress billing and retainage separately from pay-when-done home service calls.

Win local work before adding a second truck

Pick a service area you can cover profitably, and make your services and hours clear. Build referral relationships with property managers, remodelers and other trades. Ask happy customers for honest reviews, and track which inquiries turn into paid jobs, not just which ads make the phone ring.

For managed properties, prepare a short packet with your current license, insurance certificate, contacts and invoicing details. Agree who can approve an emergency repair and what happens if the repair costs more than first approved.

Hire for a specific bottleneck. Check the worker’s license or registration, required supervision, payroll setup and workers’ comp before the first shift. Count training, travel, unbilled hours and extra equipment in the cost of growing.

Our skilled-trade and AI construction research is useful background, but announced projects don’t prove demand for your particular service. Build your first operation around customers you can reach and work you’re licensed and equipped to do.

Texas plumbing startup questions

Can a journeyman run a plumbing company in Texas?

A journeyman can work under supervision, but the company needs a Responsible Master Plumber to contract and pull permits for plumbing work. Check the TSBPE RMP page for the exact rules.

Does Texas plumbing licensing cover gas and backflow work?

Some work needs an endorsement, such as Medical Gas Piping Installation, Water Supply Protection Specialist or Multipurpose Residential Fire Protection Sprinkler Specialist. Check TSBPE’s endorsement pages before offering those services.

Do I need workers’ comp in Texas?

It’s usually optional for private employers, but if you go without it you have notice duties and may lose some legal protections. Customers often require it in contracts. Talk to an insurance agent about the trade-offs.

Continue with the national plumbing business guide, the Texas business setup hub or the Texas LLC filing guide.