Licensed Contractors in Altadena, California

Altadena has 168 licensed contractors registered with the California Contractors State License Board across 34 trade classifications. The most common specialties are Plumbing Contractor (19), Electrical Contractor (19), Landscaping Contractor (13). 107 contractors hold general contractor licenses (Class A or B).

All license data is sourced from the California Contractors State License Board (CSLB). Last data update: April 05, 2026.

Contractors by Trade

Building (111)
Electrical (21)
Plumbing (20)
Landscaping (15)
Painting (14)
Limited (13)
HVAC (11)
Roofing (4)
Earthwork (3)
Welding (2)
Solar (1)
Electro Construction Corp Active
License #95881 B, C-10 Altadena, CA Est. 1947
Sunwest Hardwood Floors Active
License #411863 C-15 Altadena, CA Est. 1981
Grueter Construction Corp Active
License #416414 B, C-6 Altadena, CA Est. 1982
Cleartech Media Active
License #436029 C-7 Altadena, CA Est. 1983
Rustic Construction Enterprises Active
License #449067 B, C-36 Altadena, CA Est. 1983
Hickey Plumbing Active
License #459923 C-36 Altadena, CA Est. 1984
John W Hedrick Active
License #462915 B Altadena, CA Est. 1984
Thomas Companies Inc Active
License #497014 B Altadena, CA Est. 1986
Halpin Brothers Inc Active
License #501705 B, C-8 Altadena, CA Est. 1986
Green Ii Builders Active
License #514265 B Altadena, CA Est. 1987
Amiable Construction Company Active
License #515111 B Altadena, CA Est. 1987
Campagna Roofing Llc Active
License #518327 C-39 Altadena, CA Est. 1987
Michael D Howe Active
License #522867 C-10, C-20 Altadena, CA Est. 1988
R J Construction Active
License #534450 B Altadena, CA Est. 1988
Thomas Bralley Dba B Sealed Active
License #551786 C-33 Altadena, CA Est. 1988
Gary Lockwood Active
License #559631 B Altadena, CA Est. 1989
L R C Electric Active
License #561893 C-10 Altadena, CA Est. 1989
Guerrero Electric Active
License #562846 C-10 Altadena, CA Est. 1989
M A Electric Active
License #569475 C-10 Altadena, CA Est. 1989
Action Duct Cleaning Company Inc Active
License #570541 B, C-20 +3 more Altadena, CA Est. 1989
Guevara / Judkins And Associates Inc Active
License #586030 B Altadena, CA Est. 1990
Thomas Partitions & Specialties Inc Active
License #613974 D34 Altadena, CA Est. 1991
Bertin Brothers Construction Inc Active
License #637037 B Altadena, CA Est. 1992
Hunter Construction Active
License #637111 B Altadena, CA Est. 1992
Scott Landscape Group Active
License #641419 C-27 Altadena, CA Est. 1992
H & H Mechanical Inc Active
License #644029 C-4, C-20 Altadena, CA Est. 1992
Gregory M Johns Active
License #664613 B Altadena, CA Est. 1993
Jose Luis Martinez Active
License #671537 C-10 Altadena, CA Est. 1993
Easy Green Active
License #671583 B Altadena, CA Est. 1993
B C Milne Remodeling Active
License #675321 B Altadena, CA Est. 1993
Kempton Painting Active
License #676233 C-33 Altadena, CA Est. 1993
Parc Design And Construction Active
License #693901 B Altadena, CA Est. 1994
Comfort Heating & Cooling Systems Active
License #707692 C-20 Altadena, CA Est. 1995
E W M Finish Carpentry Active
License #710102 B Altadena, CA Est. 1995
Derek Gaddes Construction Active
License #710337 B Altadena, CA Est. 1995
Tinkham Building Active
License #721703 B Altadena, CA Est. 1996
Classie Building Service And Construction Active
License #723433 B Altadena, CA Est. 1996
Richard Arnet Lemke Construction Active
License #725171 B Altadena, CA Est. 1996
Bottoms Up - Gardens & Tree Care Active
License #743800 C-27, D49 Altadena, CA Est. 1997
Emerald Painting Active
License #748787 C-33 Altadena, CA Est. 1998
Tres G Construction Active
License #752845 B Altadena, CA Est. 1998
Bronstruction Inc Active
License #762724 B Altadena, CA Est. 1999
Sal T Vargas Plumbing Corporation Active
License #772347 C-36 Altadena, CA Est. 1999
R Suess Flooring Active
License #780627 C-15 Altadena, CA Est. 2000
H M Electric Active
License #788356 C-10 Altadena, CA Est. 2000
J A Evans Builders Active
License #789429 B Altadena, CA Est. 2001
Rivas Roofing Inc Active
License #789967 C-39 Altadena, CA Est. 2001
Gemstep Construction Inc Active
License #791985 B Altadena, CA Est. 2001
Johnson Steel Source Active
License #797977 B, C-51 Altadena, CA Est. 2001
Saleh Construction Company Active
License #807211 B, C-33 Altadena, CA Est. 2002

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Licensing Resources

How to verify a contractor license
Deposit and payment rules for California contracts
Home improvement contract requirements

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