Licensed contractors in Diamond Bar, California
Contractors with an active California license and a business address in Diamond Bar (Los Angeles County). Each listing shows what the state has on file.
291active licenses
38%with current insurance
308total records
- 3 T Media INC
Active No insurance on file
- 5 Zero INC
Active No insurance on file
- A and L Systems Solutions
Active Insurance current
- A E D Contractors
Active No insurance on file
- A W Pirelli
Active No insurance on file
- Ac Heat Diamond Bar
Active Insurance expiring soon
- Ace Iron Works
Active No insurance on file
- Ace Plumbing CO
Active No insurance on file
- Ace Rodil Heating and Air Conditioning
Active Insurance current
- Acemd Corporation
Active No insurance on file
- Adams Electric
Active No insurance on file
- Advanced Tankless and Plumbing
Active No insurance on file
- Airpropower
Active Insurance current
- All About T-Bar
Active Insurance current
- All Day Drains
Active No insurance on file
- Alliant Construction Services INC
Active Insurance expiring soon
- Allwayz Heating & Air Conditioning INC
Active Insurance current
- Alpha Construction Services INC
Active No insurance on file
- American Resources Corporation
Active Insurance current
- Apex Construction Builder INC
Active Insurance current
- Apt Construction INC
Active Insurance current
- Aquarena Water Conditioning
Active Insurance current
- Arkius INC
Active No insurance on file
- Arow Electric
Active No insurance on file
- Atlantic Air Conditioning INC
Active Insurance current
- Avanti Membrane Technology INC
Active No insurance on file
- Aveo INC
Active Insurance expired
- B7 Builders
Active No insurance on file
- Barron Electric
Active No insurance on file
- Beshear Floor
Active No insurance on file
- Big Elephant Construction INC
Active No insurance on file
- Big Mango Renovation INC
Active Insurance current
- Blue Star Contractor
Active No insurance on file
- C - Thirty - Six INC
Active Insurance current
- C S D M INC DBA Cal Steam Company
Active Insurance current
- Ca Sunshine Electrical
Active Insurance current
- Cabinets 4 You LLC
Active Insurance expiring soon
- Cany Fire Protection INC
Active No insurance on file
- Carve Modular Corporation
Active No insurance on file
- Castaneda Construction
Active No insurance on file
- Centaline Construction INC
Active Insurance current
- Cfp Construction INC
Active Insurance current
- Chung Chieh Wu
Active Insurance current
- Chyr-Shin Paul Tsao
Active No insurance on file
- Ciel Air Conditioning and Electric
Active Insurance current
- Climate Specialists
Active Insurance current
- Cm Innovate INC
Active Insurance current
- Colony on Green
Active No insurance on file
- Consma INC
Active Insurance current
- Ct & T Concrete Paving INC
Active Insurance expired
- D a S Builder INC
Active Insurance current
- D C M Remodel Specialties DBA Douglas Charles Malo Construction
Active No insurance on file
- D D Y Improvement Corp
Active No insurance on file
- D R O - West Construction
Active No insurance on file
- Daniel C Pun
Active No insurance on file
- Dannys Installation of Appliances
Active No insurance on file
- Datang Building Service INC
Active No insurance on file
- Dayone Construction
Active No insurance on file
- Dcloud Homes
Active No insurance on file
- Derek Sim
Active No insurance on file
- Devin Electric
Active No insurance on file
- Diamond Elevator Services
Active Insurance current
- Dk Air & Refrigeration
Active No insurance on file
- Dolores K Martin
Active No insurance on file
- Donglianglu
Active No insurance on file
- Dongqiang Lu
Active No insurance on file
- Dream Space Construction
Active Insurance current
- Dreamer Construction and Development
Active Insurance current
- Duke Builders Corp
Active Insurance current
- Dux Technology Consulting INC
Active No insurance on file
- Dyconn INC
Active Insurance current
- Dynamic Solar
Active Insurance current
- Dz Prime Construction
Active Insurance current
- Echo Development INC
Active Insurance current
- Ecp Construction
Active Insurance current
- Edesh Enterprise INC DBA Edesh Construction
Active No insurance on file
- Edward Caruso Electric
Active No insurance on file
- Electech
Active No insurance on file
- Elite Pipe P
Active No insurance on file
- Enervision Electric Power LLC
Active Insurance expired
- Evercraft Construction INC
Active No insurance on file
- Expedite Plumbing
Active No insurance on file
- F S Construction
Active No insurance on file
- Falkon Construction INC
Active Insurance current
- Fangzhou Chen Construction
Active No insurance on file
- Fill Good Landscaping
Active Insurance current
- Forest & Sun Arborist Designers Landscapers
Active No insurance on file
- Four Seasons Air Conditioning and Heating
Active Insurance current
- Freddie Vega
Active No insurance on file
- Fueltec INC
Active Insurance current
- G a N Signs & Graphic INC
Active No insurance on file
- G C Plumbing
Active No insurance on file
- G L Construction Group INC
Active No insurance on file
- G Miller Development CO
Active No insurance on file
- Galvan Plumbing
Active Insurance current
- Gary & Son Construction
Active Insurance current
- Giant Palms Construction INC
Active Insurance current
- Gonzalez Electric
Active No insurance on file
- Good Tidings Construction INC
Active No insurance on file
- Grand Space
Active No insurance on file
Last checked against state records on Oct 4, 2026. How we get this data.