120 licensed well and septic pros based in Harris County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against Texas Commission on Environmental Quality (TCEQ) - OSSF occupational licensing, Texas Department of Licensing and Regulation (TDLR) and Texas Department of Licensing and Regulation (TDLR) + Texas Commission on Environmental Quality (TCEQ) - OSSF occupational licensing. Roster copy last refreshed 2026-08-17.
All 8 towns named on the license records based here, with the number of listings in each, most first.
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 120.
Septic System Installation
Harris County, TX · License #MP0000950, OS0005322
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Perc Test and Soil Evaluation
Harris County, TX · License #OS0035863
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Perc Test and Soil Evaluation
Harris County, TX · License #OS0011478
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0001891, OS0012048, OS0028872
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Septic System Installation
Harris County, TX · License #MP0001842, OS0028904
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Septic System Installation
Harris County, TX · License #MP0000091, OS0004128
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Septic System Installation
Harris County, TX · License #OS0036536
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Septic System Installation
Harris County, TX · License #MP0002230, OS0029307
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Septic System Installation
Harris County, TX · License #MP0000111, OS0024365
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Septic System Installation
Harris County, TX · License #OS0031794
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Septic System Installation
Harris County, TX · License #MP0002809, OS0040755
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Perc Test and Soil Evaluation
Harris County, TX · License #OS0039041
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Septic System Installation
Harris County, TX · License #OS0030220
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Septic
Harris County, TX · License #MP0001926
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Septic System Installation
Harris County, TX · License #MP0001702, OS0029989
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Septic System Installation
Harris County, TX · License #MP0001321, OS0026985
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Septic
Harris County, TX · License #MP0000605
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Septic System Installation
Harris County, TX · License #MP0002373, OS0038389
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Septic System Installation
Harris County, TX · License #OS0041059
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Septic System Installation
Harris County, TX · License #MP0000884, OS0027922
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Septic System Installation
Harris County, TX · License #OS0040266
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Septic System Installation
Harris County, TX · License #MP0000397, OS0030079
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0001315, OS0026564, OS0037037
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Septic System Installation
Harris County, TX · License #MP0002777, OS0040447
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Septic System Installation
Harris County, TX · License #MP0000866, OS0008257
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Septic System Installation
Harris County, TX · License #MP0001772, OS0029833
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Septic System Installation
Harris County, TX · License #MP0001916, OS0030808
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Septic System Installation
Harris County, TX · License #OS0040595
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0000477, OS0000085, OS0010002
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0002016, OS0006003, OS0038431
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Septic
Harris County, TX · License #MP0002257
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Septic
Harris County, TX · License #MP0002457
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Septic
Harris County, TX · License #MP0002658
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0001271, OS0004976, OS0010517
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0000823, OS0002856, OS0011178
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #OS0037856, OS0039147
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Perc Test and Soil Evaluation
Harris County, TX · License #OS0025275
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Septic System Installation
Harris County, TX · License #MP0001962, OS0032089
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Perc Test and Soil Evaluation
Harris County, TX · License #OS0034028
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Septic System Installation
Harris County, TX · License #OS0037381
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Septic System Installation
Harris County, TX · License #MP0002807, OS0039290
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Septic System Installation
Harris County, TX · License #OS0003230
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Septic System Installation
Harris County, TX · License #MP0002381, OS0035940
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Septic System Installation
Harris County, TX · License #OS0041422
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Septic System Installation
Harris County, TX · License #OS0040773
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Septic System Installation
Harris County, TX · License #MP0002661, OS0038823
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Septic System Installation
Harris County, TX · License #MP0002296, OS0034733
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0001912, OS0004308, OS0010427
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Septic System Installation
Harris County, TX · License #MP0001762, OS0028841
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Septic System Installation
Harris County, TX · License #OS0041129
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #OS0038637, OS0039518
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Septic System Installation
Harris County, TX · License #MP0001195, OS0028616
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Septic System Installation
Harris County, TX · License #OS0040986
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0002705, OS0030534, OS0038000
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0001942, OS0029335, OS0030740
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Septic System Installation
Harris County, TX · License #MP0001351, OS0007092
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Perc Test and Soil Evaluation
Harris County, TX · License #OS0011454
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Septic System Installation
Harris County, TX · License #OS0039569
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Septic System Installation
Harris County, TX · License #OS0040176
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Septic System Installation
Harris County, TX · License #OS0039388
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Perc Test and Soil Evaluation
Harris County, TX · License #OS0009256
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Septic System Installation
Harris County, TX · License #MP0001683, OS0028269
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Septic
Harris County, TX · License #MP0002508
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Septic System Installation
Harris County, TX · License #MP0002395, OS0028820
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Septic System Installation
Harris County, TX · License #MP0002246, OS0036699
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0002433, OS0036852, OS0037734
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Septic System Installation
Harris County, TX · License #MP0000122, OS0005197
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Septic System Installation
Harris County, TX · License #OS0040774
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Septic
Harris County, TX · License #MP0002098
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Septic System Installation
Harris County, TX · License #OS0033202
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Septic System Installation
Harris County, TX · License #MP0001545, OS0022663
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Septic System Installation
Harris County, TX · License #MP0002458, OS0033681
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Septic System Installation
Harris County, TX · License #MP0001812, OS0006190
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Septic System Installation
Harris County, TX · License #OS0038313
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Septic System Installation · Perc Test and Soil Evaluation
Harris County, TX · License #MP0002219, OS0034310, OS0034504
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Septic System Installation
Harris County, TX · License #OS0039159
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Septic System Installation
Harris County, TX · License #OS0040257
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Septic System Installation
Harris County, TX · License #MP0001978, OS0030530
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Septic System Installation
Harris County, TX · License #OS0006849
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Septic System Installation
Harris County, TX · License #MP0000662, OS0004350
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Septic System Installation
Harris County, TX · License #MP0002521, OS0033004
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Septic
Harris County, TX · License #MP0000664
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Septic System Installation
Harris County, TX · License #OS0038657
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Septic System Installation
Harris County, TX · License #MP0000328, OS0028079
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Septic
Harris County, TX · License #MP0001899
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #58337
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #4992
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #2984
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #58675
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Well Drilling · Well Pump Repair
Based in Spring, TX · License #60845
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #3102
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #2964
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Well Drilling · Well Pump Repair
Based in Tomball, TX · License #61935
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #4624
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Well Drilling · Well Pump Repair
Based in Cypress, TX · License #54933
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #59506
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Well Drilling · Well Pump Repair
Based in Huffman, TX · License #1952
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #4885
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #59457
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #4786
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #61334
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #58171
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Well Drilling · Well Pump Repair
Based in Tomball, TX · License #59615
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #60310
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Well Drilling · Well Pump Repair
Based in Deer Park, TX · License #4850
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #61888
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #2255
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Well Drilling · Well Pump Repair
Based in Hockley, TX · License #54880
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #56052
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #56049
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #4839
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #60575
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Well Drilling · Well Pump Repair
Based in Hockley, TX · License #61919
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #59645
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #59450
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Well Drilling · Well Pump Repair
Based in Tomball, TX · License #54561
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Well Drilling · Well Pump Repair
Based in Hockley, TX · License #53420
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #59438
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Well Drilling · Well Pump Repair
Based in Houston, TX · License #59657
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Listings based in Harris County whose license class covers each service. Cost ranges are national; each links its cost guide.
None of the listings based in Harris County hold a license class we can match to septic tank pumping, septic inspection or septic system design. Ask any contractor whether they do this work, or try a nearby city.
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.