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At FastestLabs® of Texas, we have more than a decade of industry experience in a wide range of drug, alcohol, and DNA testing services for individuals, employers, and organizations. We set ourselves apart by providing clean, inviting facilities, quick test results, short wait times, superior customer service and affordable prices.

Beyond our actual testing services, we offer on-site mobile testing, policy creation and implementation, immigration DNA testing assistance, and random drug testing for employers. Our collectors hold the required certifications to conduct both DOT and Non-DOT tests, and we ensure that every drug and alcohol screen conducted is in full compliance.

Thanks to Quest Diagnostics, we offer drug testing services all across Texas at the locations listed below:

  • Abilene
    Quest Diagnostics
    4150 Southwest Dr Suite 125
    Abilene, TX 79606
  • Alice
    Quest Diagnostics
    2000 Dr N W Atkinson Blvd Ste 1201
    Alice, TX 78332
  • Allen
    Quest Diagnostics
    1101 Raintree Cir Suite 100
    Allen, TX 75013
  • Arlington
    Quest Diagnostics
    902 W Randol Mill Suite 100
    Arlington, TX 76012
  • Arlington
    Quest Diagnostics
    1001 W Arbrook Blvd Suite 141
    Arlington, TX 76015
  • Austin
    Quest Diagnostics
    3708 Jefferson St Suite B
    Austin, TX 78731
  • Azle
    Quest Diagnostics
    124 Industrial Ave
    Azle, TX 76020
  • Beaumont
    Quest Diagnostics
    3445 Phelan Blvd Ste 100
    Beaumont, TX 77707
  • Beeville
    Quest Diagnostics
    1652 E Houston St Suite B
    Beeville, TX 78102
  • Baytown
    Quest Diagnostics
    2802 Garth Rd Suite 213
    Baytown, TX 77521
  • Burleson
    Quest Diagnostics
    1505 W Wilshire Blvd Suite 615
    Burleson, TX 76028
  • Conroe
    Quest Diagnostics
    800 Riverwood Court Suite 103
    Conroe, TX 77304
  • Carrollton
    Quest Diagnostics
    4333 North Josey Lane Plaza II Suite 105
    Carrollton, TX 75010
  • Cleburne
    Quest Diagnostics
    505 N Ridgeway Dr Suite 172
    Cleburne, TX 76033
  • Corpus Christi
    Quest Diagnostics
    14101 Northwest Blvd Suite 113
    Corpus Christi, TX 78410
  • Corpus Christi
    Quest Diagnostics
    3133 S Alameda St Suite 500
    Corpus Christi, TX 78404
  • Dallas
    Quest Diagnostics
    3430 W Wheatland Rd Ste 224
    Dallas, TX 75237
  • Dallas
    Quest Diagnostics
    11613 N Central Expwy Suite 120
    Dallas, TX 75243
  • Dallas
    Quest Diagnostics
    3900 Junius St Ste 240
    Dallas, TX 75246
  • Denton
    Quest Diagnostics
    2817 S Mayhill Rd Suite 130
    Denton, TX 76208
  • Desoto
    Quest Diagnostics
    2727 Bolton Boone Dr Suite 106
    Desoto, TX 75115
  • Edinburg
    Quest Diagnostics
    2723 W Trenton
    Edinburg, TX 78539
  • El Paso
    Quest Diagnostics
    1810 Murchison Dr Suite 240
    El Paso, TX 79902
  • El Paso
    Quest Diagnostics
    5255 Woodrow Bean Transmountain Dr Suite 15
    El Paso, TX 79924
  • El Paso
    Quest Diagnostics
    4930 Osborne Dr Suite D
    El Paso, TX 79922
  • El Paso
    Quest Diagnostics
    1831 N Zaragoza Rd Suite 107
    El Paso, TX 79936
  • El Paso
    Quest Diagnostics
    840 E Redd Rd
    El Paso, TX 79912
  • Flowermound
    Quest Diagnostics
    4001 Long Prairie Rd Suite 130
    Flowermound, TX 75028
  • Fort Worth
    Quest Diagnostics
    5500 Overton Ridge Blvd Ste 206
    Fort Worth, TX 76132
  • Fort Worth
    Quest Diagnostics
    7630 N Beach St Suite 156
    Fort Worth, TX 76137
  • Fort Worth
    Quest Diagnostics
    1250 8th Avenue Suite 115
    Fort Worth, TX 76104
  • Granbury
    Quest Diagnostics
    805 Hill Blvd Unit 108
    Granbury, TX 76048
  • Greenville
    Quest Diagnostics
    4101 Wesley St Suite G
    Greenville, TX 75401
  • Houston
    Quest Diagnostics
    1200 Binz St Ste 115
    Houston, TX 77004
  • Houston
    Quest Diagnostics
    1140 Westmont Dr Suite 510
    Houston, TX 77015
  • Houston
    Quest Diagnostics
    13300 Hargrave Road, Suite 507
    Houston, TX 77070
  • Houston
    Quest Diagnostics
    11717 Highland Meadow Dr
    Houston, TX 77089
  • Houston
    Quest Diagnostics
    12385 Kingsride Avenue
    Houston, TX 77024
  • Houston
    Quest Diagnostics
    5711 Almeda Rd Ste 131B
    Houston, TX 77004
  • Houston
    Quest Diagnostics
    10680 Jones Rd Suite 200
    Houston, TX 77065
  • Houston
    Quest Diagnostics
    8200 Wednesbury Lane Suite 450
    Houston, TX 77074
  • Houston
    Quest Diagnostics
    12121 Richmond Ave Suite 124
    Houston, TX 77082
  • Houston
    Quest Diagnostics
    1919 North Loop W Suite 125
    Houston, TX 77008
  • Humble
    Quest Diagnostics
    8901 Fm Road 1960 Suite 203
    Humble , TX 77338
  • Irving
    Quest Diagnostics
    3501 N Macarthur Blvd Suite 420 Bldg 4
    Irving, TX 75062
  • Katy
    Quest Diagnostics
    952 S Fry Rd
    Katy, TX 77450
  • Keller
    Quest Diagnostics
    3529 Heritage Trace Parkway Suite 133
    Keller, TX 76244
  • Killeen
    Quest Diagnostics
    2300 S Clear Creek Rd Suite 204
    Killeen, TX 76549
  • Lake Jackson
    Quest Diagnostics
    201 B Hwy 332 West Suite 1000
    Lake Jackson, TX 77566
  • Lake Worth
    Quest Diagnostics
    4625 Boat Club Rd
    Lake Worth, TX 76135
  • Lakeway
    Quest Diagnostics
    2301 Ranch Rd 620 South
    Lakeway, TX 78734
  • Laredo
    Quest Diagnostics
    702 E Calton Rd Suite 202A
    Laredo, TX 78041
  • Leander
    Quest Diagnostics
    651 N. Us Hwy 183 Ste 155
    Leander, TX 78641
  • Longview
    Quest Diagnostics
    603 N Second St
    Longview, TX 75601
  • Lubbock
    Quest Diagnostics
    3417 20th St
    Lubbock, TX 79410
  • Lufkin
    Quest Diagnostics
    503 Gaslight Blvd
    Lufkin, TX 75904
  • Mansfield
    Quest Diagnostics
    990 Highway 287 N Ste 115
    Mansfield, TX 76063
  • McAllen
    Quest Diagnostics
    1201 East Ridge Rd Ste A
    McAllen, TX 78503
  • McKinney
    Quest Diagnostics
    4510 Medical Center Dr Ste 310
    McKinney, TX 75069
  • Mesquite
    Quest Diagnostics
    3230 I- 30 East Suite 101
    Mesquite, TX 75150
  • Murphy
    Quest Diagnostics
    140 East F. M. 544 Suite 80
    Murphy, TX 75094
  • Odessa
    Quest Diagnostics
    523 N Alleghaney Ave
    Odessa, TX 79761
  • Orange
    Quest Diagnostics
    230 Strickland Dr
    Orange, TX 77630
  • Paris
    Quest Diagnostics
    3150 Clarksville St Suite 500
    Paris, TX 75460
  • Plano
    Quest Diagnostics
    3600 Communications Pkwy Ste 647
    Plano, TX 75093
  • Plano
    Quest Diagnostics
    3801 W 15th St Ste 100 Building A
    Plano, TX 75075
  • Port Arthur
    Quest Diagnostics
    2501 Jimmy Johnson Blvd Suite 303
    Port Arthur, TX 77640
  • Richmond
    Quest Diagnostics
    1601 Main Street Suite 208
    Richmond, TX 77469
  • Rockport
    Quest Diagnostics
    2319 Highway 35 N Suite C
    Rockport, TX 78382
  • San Antonio
    Quest Diagnostics
    6100 Bandera Rd Suite 400
    San Antonio, TX 78238
  • San Antonio
    Quest Diagnostics
    1303 Mccullough Ave Ste 338
    San Antonio, TX 78212
  • San Antonio
    Quest Diagnostics
    18707 Hardy Oak Blvd Suite 560
    San Antonio, TX 78258
  • San Antonio
    Quest Diagnostics
    607 E Sonterra Blvd Ste 306
    San Antonio, TX 78258
  • Sherman
    Quest Diagnostics
    1010 La Salle Dr Suite 2 EB
    Sherman, TX 75090
  • Sugar Land
    Quest Diagnostics
    15259 Southwest Freeway
    Sugar Land, TX 77478
  • Texarkana
    Quest Diagnostics
    921 Texas Blvd Suite A
    Texarkana, TX 75501
  • Texas City
    Quest Diagnostics
    7111 Medical Center Dr Suite 114
    Texas City, TX 77591
  • The Woodlands
    Quest Diagnostics
    8850 Six Pines Dr Suite 230
    The Woodlands, TX 77380
  • Tomball
    Quest Diagnostics
    13406 Medical Complex Dr Suite 170
    Tomball, TX 77375
  • Tyler
    Quest Diagnostics
    822 S Fleishel Avenue
    Tyler, TX 75701
  • Waco
    Quest Diagnostics
    7125 Sanger Ave
    Waco, TX 76712
  • Weatherford
    Quest Diagnostics
    1105 Sante Fe Suite 103
    Weatherford, TX 76086
  • Webster
    Quest Diagnostics
    106 W. Bay Area Blvd Suite A
    Webster, TX 77598
  • Weslaco
    Quest Diagnostics
    1221 East 10th St Suite 101-A
    Weslaco, TX 78596

Texas Metro Areas

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