What to Check Before Hiring a Texas Plumber
Texas has 16,902 licensed plumbers tracked in our database, and the average AI Trust Score across the vertical is 42.3/100. That number sits above the statewide average for all contractors (35.7/100), but it still signals real gaps in verifiability. Only 1.7% of all Texas contractors score in the Excellent range (80-100). Before you hire anyone, run through these steps.
1. Verify the license with the Texas State Board of Plumbing Examiners
Every plumber working in Texas must hold a license issued by the Texas State Board of Plumbing Examiners (TSBPE). Look up their license number directly on the TSBPE website before any work begins. An active license confirms the plumber has met the state's training and examination requirements.
2. Confirm insurance coverage
Ask for a certificate of general liability insurance and, if they have employees, workers' compensation. A plumber without coverage leaves you financially exposed if something goes wrong on your property. Request the certificate directly from their insurer, not just a PDF they hand you.
3. Check business information consistency
The Identity component of our AI Trust Score measures whether a contractor's business name, address, and phone number match across their website, Google Business Profile, and licensing records. Inconsistencies here are a concrete red flag. Nationally, this mismatch is one of the most common reasons scores fall below 40.
4. Audit their digital presence
Every plumber in our Texas dataset has a website, but having a website and having a verifiable one are different things. Only 23% of Texas plumbers have JSON-LD structured data, the machine-readable markup that lets AI systems and search engines confirm basic business facts. A missing or thin digital footprint makes independent verification harder. You can check any plumber's profile at /plumber/texas/.
5. Look past star ratings
The average rating across Texas plumbers is 4.51 stars, which sounds strong. The average review count is 118, but the median is 0. That means more than half of plumbers in the state have zero indexed reviews. A high rating with no volume means almost nothing. Focus on verified review counts, not the stars alone.
Cities with stronger verification signals: Haslet (47.2/100), Round Rock (47.0/100), Cedar Park (46.4/100), Leander (46.0/100), and Bastrop (45.7/100) all score above the Texas plumber average. If you're in one of these markets, your pool of verifiable options is wider.
Run any plumber you're considering through VerifiedNode's score checker before signing a contract.
Red Flags in the Data
23.8% of Texas contractors across all verticals score below 40 on the AI Trust Score scale. Within that group, the distribution tells a concerning story about how many plumbers are operating with essentially no verifiable digital presence.
| Score Range | Texas Contractors | Share of Total | What It Signals |
|---|---|---|---|
| 0-9 | 2,166 | 13% | No indexed reviews, missing or unverifiable business info |
| 10-19 | 403 | 2% | Minimal identity signals, likely no structured data |
| 20-29 | 2,453 | 15% | Incomplete profiles, inconsistent NAP data |
| Below 40 (total) | ~4,022+ | 23.8% | Failed basic verifiability threshold |
| Good or Excellent (60+) | ~3,285 | 19.4% | Meets minimum trust criteria for AI systems |
| Missing JSON-LD | ~14,155 | 84% | Business facts unreadable by AI and search engines |
The 13% of Texas contractors scoring between 0-9 are not simply low performers. A score that low typically means the Identity component (business name, address, and phone consistency across platforms) returned near-zero matches. That is the same signal used by AI assistants like Google's SGE and ChatGPT when deciding which businesses to surface in a response.
Only 19.4% of Texas plumbers score in the Good (60-79) or Excellent (80-100) range. The remaining 80.6% have gaps that make independent verification difficult.
The median review count of 0.0 is the starkest number in the dataset. More than half of the 16,902 plumbers tracked in Texas have no indexed reviews at all. When you see a plumber with a 5-star average and three reviews posted on the same day, that pattern is far more common than it looks. Volume and recency matter more than the rating itself.
Five Texas cities return an average score of exactly 0.0/100: Texas City, Smithville, Santa Fe, San Leon, and Red Rock. If you're hiring in any of these markets, the local pool of verifiable contractors is extremely thin. Default to plumbers who operate regionally and carry verifiable credentials in the TSBPE database.
The 84% of Texas plumbers without JSON-LD structured data present a specific problem: AI-powered search tools cannot confirm their basic business facts programmatically. That gap will matter more, not less, as AI-assisted home service searches grow.
Before you commit to any contractor, check their score at VerifiedNode's score checker and cross-reference the full Texas plumber directory to compare options side by side.
Verification Checklist
The average Texas plumber scores 42.3/100 on the AI Trust Score. The top 10% average 69.7/100 with 239 reviews. The bottom 50% average 22.0/100 with 136 reviews. That 1.8x review gap between top and bottom performers is one of the clearest signals of who is operating a verifiable, established business. Use these steps before signing anything.
1. Look up the license at the Texas State Board of Plumbing Examiners
Go directly to the TSBPE license lookup tool and search by name or license number. Confirm the license is active, not expired or suspended. Texas requires all plumbers to hold a current TSBPE-issued license. This step takes under two minutes and eliminates a significant category of risk.
2. Request proof of insurance directly from the insurer
Ask for a certificate of general liability insurance. If the plumber has employees, ask for workers' compensation documentation as well. Request that the certificate be sent directly from their insurance provider. A plumber who cannot produce this should not be on your property.
3. Cross-check business information across three platforms
The Identity component of the AI Trust Score (25 of 100 points) measures whether a contractor's business name, address, and phone number match across their website, Google Business Profile, and state licensing records. Open all three in separate tabs and compare. Any mismatch is a red flag.
4. Read reviews on at least two platforms
Check Google and Yelp separately. The average Texas plumber carries a 4.51-star rating, but the median review count is 0. More than half of plumbers in the state have no indexed reviews. A handful of reviews posted within days of each other, or a high rating with very low volume, warrants scrutiny.
5. Check for a structured, verifiable website
Only 23% of Texas plumbers have JSON-LD structured data on their website, the markup that allows AI systems and search engines to confirm basic business facts. A plumber with a thin or unstructured website is harder to verify independently. Browse the full Texas plumber directory to compare options across the state.
6. Run an AI Trust Score check before you commit
The Legitimacy component (35 of 100 points) covers reviews, ratings, and license and insurance verification. The Readability component (40 of 100 points) covers website quality, structured data, and mobile-friendliness. Check any plumber you're considering at /find before signing a contract.
Using AI to Verify Texas Plumbers
The AI Trust Score is a 0-100 rating that measures how verifiable a contractor is across three areas: Identity (business name, address, and phone consistency across platforms), Legitimacy (reviews, ratings, and license and insurance verification), and Readability (website quality, structured data, and mobile-friendliness).
Texas plumbers are the strongest-performing vertical in the state, averaging 42.3/100 against a statewide average of 35.7/100 across all contractor types. That relative strength is real, but it does not mean the market is well-verified. Only 5.1% of Texas plumbers score in the Excellent range (80-100), and that figure is still the highest of any vertical tracked in the state.
The gap between top and bottom performers is the most useful number here. The top 10% of Texas plumbers average 69.7/100 with 239 reviews. The bottom 50% average 22.0/100 with 136 reviews. A score of 22.0 typically means incomplete or inconsistent business information, thin review history, and little to no structured data on their website. A score near 69.7 means the opposite: consistent identity signals, meaningful review volume, and a website that AI systems can actually read.
Of the 16,902 Texas plumbers tracked in the database, only 1.7% of all Texas contractors across every vertical reach the Excellent threshold. Most plumbers you encounter will fall in the Fair (40-59) or below-40 range.
A higher score does not guarantee quality work. It does mean the contractor has a verifiable presence you can cross-check independently before handing over a deposit.
Browse the full Texas plumber directory, check any contractor at /find, or review the complete market breakdown in the Texas state report.
Frequently Asked Questions
How do I check a Texas plumber's license?
Go directly to the Texas State Board of Plumbing Examiners (TSBPE) online lookup and search by name or license number. Confirm the license is active, not expired or suspended. Of the 16,902 Texas plumbers tracked in our database, inconsistent licensing records are one of the primary reasons scores fall below 40.
What should I look for in plumber reviews?
Volume and recency, not stars. The average Texas plumber carries a 4.51-star rating, but the median review count is 0. More than half of plumbers in the state have no indexed reviews at all.
What does the AI Trust Score mean for me as a homeowner?
It measures how independently verifiable a contractor is. Texas plumbers average 42.3/100. Only 1.7% reach the Excellent range (80-100). A higher score means consistent identity signals and a website AI systems can actually read.
Which Texas cities have the best-verified plumbers?
Haslet (47.2/100), Round Rock (47.0/100), and Cedar Park (46.4/100) lead the state. Browse the full Texas plumber directory or check any contractor at /find.