First-try inspection pass rate
Which Mesa plumbing contractors pass on the first try
A ranked shortlist of plumbing contractors whose Mesa plumbing inspections pass on the first visit. Home builders and general contractors are listed separately. Ranked on the first-try pass rate from Mesa city records, not on job volume, reviews, or ads. The Mesa plumbers page ranked by jobs is a different list. This is how often a city inspector signed off on the first visit. It is not a grade of workmanship.
Last updated from Mesa city records through 2026-10-15. Verified against the Arizona Registrar of Contractors snapshot dated 2026-10-06.
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6 plumbing contractors in Mesa with 50+ first-try plumbing inspections, highest first-try pass rate first
- 90.7%
ROC 336866 · 166 of 183 · +16.8 pp vs 74% mix · through 2024-12-23
- 89.2%
ROC 293612 · 132 of 148 · +7.3 pp vs 82% mix · through 2024-08-06
- 88.5%
ROC 255024 · 170 of 192 · +6 pp vs 83% mix · through 2025-07-17
- 86.5%
ROC 212887 · 96 of 111 · +4.2 pp vs 82% mix · through 2025-12-15
- 83.7%
ROC 166455 · 261 of 312 · about even (83% mix) · through 2026-09-18
- 80.8%
Smaller sample: based on 78 inspections.
ROC 125007 · 63 of 78 · about even (80% mix) · through 2024-06-13
| Rank | Firm | License | First-try pass | Vs city mix | Counted |
|---|---|---|---|---|---|
| 1 | West Shore Home LLC | ROC 336866 | 90.7% | +16.8 pp vs 74% mix | 166 of 183 |
| 2 | Premier Pools and Spas of Arizona (Tradition Builders Inc) | ROC 293612 | 89.2% | +7.3 pp vs 82% mix | 132 of 148 |
| 3 | Icon Gas Services LLC | ROC 255024 | 88.5% | +6 pp vs 83% mix | 170 of 192 |
| 4 | King Underground (Kerns Plumbing LLC) | ROC 212887 | 86.5% | +4.2 pp vs 82% mix | 96 of 111 |
| 5 | Millennium Gas Services LLC | ROC 166455 | 83.7% | about even (83% mix) | 261 of 312 |
| 6 | Arizona Propane Co (Dawson Enterprises Inc) Smaller sample: based on 78 inspections. | ROC 125007 | 80.8% | about even (80% mix) | 63 of 78 |
Mix-adjusted city average uses the same kinds of Mesa plumbing inspections each contractor actually had. This is how often a city inspector signed off on the first visit. It is not a grade of workmanship.
How this ranking works
We show a rate only at 20+ first-try inspections. This list ranks at 50+. Pool contractor leaderboards rank at 25+ because pool jobs are big-ticket and lower-volume. A contractor is compared only with the same city and the same kinds of inspections. We never compare Mesa with Scottsdale, and we never mix a plumbing underground result into an electrical average. This list is trade specialists only. Home builders and general contractors (classes such as B, KB-1, and KB-2) are on the home builders first-try page. We group the remaining firms by the city's inspection type. When two first-try rates match at one decimal, the contractor with more inspections ranks higher. A smaller-sample note appears next to anyone with fewer than twice this list's rank floor. We never treat a partial approval as a pass.
How we count · Something wrong? · All first-try leaderboards
Frequently asked questions
- Who passes Mesa plumbing inspection on the first try most often?
- 6 plumbing contractors in Mesa with 50+ first-try plumbing inspections, highest first-try pass rate first. City records through 2026-10-15. This is how often a city inspector signed off on the first visit. It is not a grade of workmanship.
- How is this different from plumbing contractors in Mesa ranked by jobs?
- This page ranks by first-try inspection pass rate on Mesa plumbing inspections. The jobs page (/az/mesa/plumbing) ranks licensed plumbing contractors by how much Mesa work is on file. They answer different questions. Use both.
- How do you decide who counts as this trade?
- By the city's inspection type, among trade specialists only. Home builders and general contractors (classes such as B, KB-1, and KB-2) are listed separately. A firm appears here when Mesa credited plumbing inspections to its license. We show a rate only at 20+ first-try inspections. This list ranks at 50+. Pool contractor leaderboards rank at 25+ because pool jobs are big-ticket and lower-volume.
- Is this a grade of workmanship?
- This is how often a city inspector signed off on the first visit. It is not a grade of workmanship. A contractor is compared only with the same city and the same kinds of inspections. We never compare Mesa with Scottsdale, and we never mix a plumbing underground result into an electrical average.
- What if a number looks wrong?
- Tell us on the corrections page (/corrections). We check the city record and the license match by hand. We will not change a city inspector's written result.