Licensed Contractors in Livermore, California
All license data is sourced from the California Contractors State License Board (CSLB). Last data update: February 20, 2026.
Contractors by Classification
General Contractors
B: General Building Contractor
(295)
A: General Engineering Contractor
(66)
B-2: Residential Remodeling Contractor
(5)
Specialty Contractors
C-10: Electrical Contractor
(110)
C-36: Plumbing Contractor
(62)
C-20: Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) Contractor
(55)
C-27: Landscaping Contractor
(45)
C-7: Low Voltage Systems Contractor
(34)
C-33: Painting and Decorating Contractor
(30)
C-54: Ceramic and Mosaic Tile Contractor
(26)
C-39: Roofing Contractor
(21)
C-8: Concrete Contractor
(21)
C-15: Flooring and Floor Covering Contractor
(20)
Marciel Excavating
Active
License #578891
A
Livermore, CA
Est. 1989
Mueller Excavating Inc
Active
License #582970
C-12
Livermore, CA
Est. 1989
Logan'S Construction
Active
License #583206
B, C-15
Livermore, CA
Est. 1989
Raymond A George
Active
License #583753
A
Livermore, CA
Est. 1989
Halco Roofing Incorporated
Active
License #583756
C-39
Livermore, CA
Est. 1989
Western Abatement Inc
Active
License #591839
A, C-21 +2 more
Livermore, CA
Est. 1990
Dover Construction
Active
License #593744
A, B
Livermore, CA
Est. 1990
Patrick Development
Active
License #597127
B
Livermore, CA
Est. 1990
Slade Electric
Active
License #598514
C-10
Livermore, CA
Est. 1990
Reed Plumbing Inc
Active
License #601931
C-36
Livermore, CA
Est. 1990
License #605270
B, C-33
Livermore, CA
Est. 1990
Allied Construction Services
Active
License #605271
B, C-33 +1 more
Livermore, CA
Est. 1990
L J Interiors Inc
Active
License #605932
C-2
Livermore, CA
Est. 1990
License #606314
A, B +2 more
Livermore, CA
Est. 1990
Robert James Cortez
Active
License #606942
C-20, C-36 +1 more
Livermore, CA
Est. 1990
F B Builders Inc
Active
License #607061
B
Livermore, CA
Est. 1990
Flooring Solutions Inc
Active
License #608728
C-15, C-54
Livermore, CA
Est. 1991
Plumbing Technology Inc
Active
License #609200
C-36
Livermore, CA
Est. 1991
License #609976
B
Livermore, CA
Est. 1991
Pleasanton Steel & Supply Co
Active
License #611592
C-13
Livermore, CA
Est. 1991
Streivor Inc
Active
License #611749
C-43
Livermore, CA
Est. 1991
Kayak Tile & Stone Inc
Active
License #616172
C-54
Livermore, CA
Est. 1991
Grogan Construction
Active
License #616308
B
Livermore, CA
Est. 1991
William Roy Duterte
Active
License #619604
B, C-36
Livermore, CA
Est. 1991
Edgington Plumbing Inc
Active
License #621841
C-36
Livermore, CA
Est. 1991
South Bay Mechanical
Active
License #627316
C-20, C-36 +1 more
Livermore, CA
Est. 1991
Small Jobs
Active
License #628095
B
Livermore, CA
Est. 1991
Gradetech Inc
Active
License #628365
A, C-21 +1 more
Livermore, CA
Est. 1991
Mc Naney Plumbing
Active
License #628472
B, C-36
Livermore, CA
Est. 1991
J D Hutchinson Construction
Active
License #629029
B
Livermore, CA
Est. 1991
License #629290
D52
Livermore, CA
Est. 1991
Mountain Air
Active
License #630391
C-10, C-20
Livermore, CA
Est. 1991
Advanced Water Products
Active
License #632567
C-55
Livermore, CA
Est. 1991
Electric Express
Active
License #632608
B, C-10 +1 more
Livermore, CA
Est. 1991
Steve Simoni
Active
License #633032
B
Livermore, CA
Est. 1991
Salazar Electric
Active
License #633182
C-10
Livermore, CA
Est. 1991
A P Concrete
Active
License #633954
C-8
Livermore, CA
Est. 1991
Gancos & Sons
Active
License #634243
D24
Livermore, CA
Est. 1991
California Seamless Gutters
Active
License #634764
D24
Livermore, CA
Est. 1992
Pacheaco Construction
Active
License #635806
B
Livermore, CA
Est. 1992
Trojan Systems Inc
Active
License #637942
C-7, C-10
Livermore, CA
Est. 1992
License #638992
C-20
Livermore, CA
Est. 1992
License #639617
C-27, C-53
Livermore, CA
Est. 1992
Affordable Rain Gutters
Active
License #646574
C-43
Livermore, CA
Est. 1992
License #648028
B
Livermore, CA
Est. 1992
Plumbing Works
Active
License #654383
C-36
Livermore, CA
Est. 1992
Landmark Exteriors
Active
License #658620
B
Livermore, CA
Est. 1992
Lilja Corp
Active
License #658760
A, C-10
Livermore, CA
Est. 1992
M C H Electric Inc
Active
License #660665
A, C-10
Livermore, CA
Est. 1992
Ken Miks Construction
Active
License #661723
B
Livermore, CA
Est. 1992