Plumbing · Published aggregate
Harris County
County-level public-record indicators only. A business is described only as having “left the roll”; the record does not explain why.
Number-sequence tenure is an inference from licensing records, not a founding date, owner age, or evidence of continuous operation.
Harris County Plumbing market summary
Harris County has 906 published aggregate firms in the Plumbing record. The single-holder indicator is 98%; the recorded number-sequence counts are 118 for 30+ years and 78 before 1997. The 12-month roll-change fields record 21 joined and 29 left.
Source: tsbpe_RMP_20261110.csv · Pull date: Nov 10, 2026Compared with the published Plumbing total
The published county/trade aggregates sum to 8,319 firms statewide for Plumbing. Their combined single-holder share is 99%. This is a comparison of the published aggregate rows, not an independent estimate.
Source: tsbpe_RMP_20261110.csv · Pull date: Nov 10, 2026Other published trades in Harris County
- Electrical: 1,527 aggregate firms; single-holder share 100%. Source: tdlr_electrical_20261110.csv · Pull date: Nov 10, 2026
- HVAC: 2,820 aggregate firms; single-holder share 97%. Source: tdlr_airref_20261110.csv · Pull date: Nov 10, 2026
Recorded roll-change history
The latest county/trade roll pull is dated 2026-11-10: 11 joined and 2 left. This reports changes in the public roll only; it does not explain why a firm left.
Source: tsbpe_RMP_20261103.csv, tsbpe_RMP_20261110.csv · Pull date: Nov 10, 2026Earlier county/trade roll pulls
- 2026-11-03: 2 joined, 25 left. Source: tsbpe_RMP_20261027.csv, tsbpe_RMP_20261103.csv · Pull date: Nov 3, 2026
- 2026-10-27: 8 joined, 2 left. Source: tsbpe_RMP_20261022.csv, tsbpe_RMP_20261027.csv · Pull date: Oct 27, 2026