Plumbing contractors licensed in California
Every active California license that lists plumbing work, sorted by name.
- Knecht's Plumbing & Heating INC
Active Insurance current
- Knight Building CO
Active No insurance on file
- Knight Building Corporation
Active Insurance current
- Knight Construction of California
Active No insurance on file
- Knights Plumbing and Drain
Active No insurance on file
- Knittel Construction INC
Active Insurance current
- Knock - Out Plumbing
Active No insurance on file
- Knockout Plumbing & Repipe INC
Active Insurance current
- Knott Plumbing
Active No insurance on file
- Know How Plumbing
Active No insurance on file
- Knowles Pipeworks and Plumbing Corp
Active Insurance current
- Ko Plumbing INC
Active No insurance on file
- Koehler Plumbing INC
Active Insurance current
- Kofman Enterprises INC
Active No insurance on file
- Koh Koh Plumbing
Active No insurance on file
- Kohl Mechanical
Active No insurance on file
- Kohler CO
Active Insurance current
- Kohler Mechanical INC
Active Insurance current
- Koko Drains
Active Insurance current
- Kolb Plumbing
Active No insurance on file
- Kolo Plumbing
Active No insurance on file
- Kolts Plumbing
Active No insurance on file
- Kompas Build & Design INC
Active Insurance current
- Konakis Plumbing
Active No insurance on file
- Konczak Plumbing
Active No insurance on file
- Kong's Plumbing and Construction CO
Active Insurance current
- Koolco Mechanical INC
Active Insurance current
- Kore Construction
Active Insurance current
- Korkis Plumbing INC
Active No insurance on file
- Korsgaden Plumbing
Active Insurance expired
- Kosta Plumbing
Active No insurance on file
- Kozy Homes
Active Insurance current
- Kp Plumbing INC
Active Insurance current
- Kp-1 Plumbing CO
Active No insurance on file
- Kpex Plumbing INC
Active No insurance on file
- Kpn Builders INC
Active No insurance on file
- Kps Plumbing
Active No insurance on file
- Kpt-Working So You Don't Have To!
Active No insurance on file
- Kr Plumbing
Active No insurance on file
- Kraft Plumbing LLC
Active No insurance on file
- Kraken Water Systems
Active No insurance on file
- Kramer Mechanical
Active Insurance current
- Kramers Plumbing
Active Insurance current
- Kravets CO
Active Insurance expiring soon
- Kreit Mechanical Associates INC
Active Insurance current
- Kretsinger Plumbing INC
Active No insurance on file
- Kryptonite Mechanical INC DBA Kryptonite Metal Works
Active Insurance expiring soon
- Ks Plumbing INC
Active Insurance expiring soon
- Ksf Backflow
Active No insurance on file
- Kt's Plumbing
Active No insurance on file
- Kudenov Construction & Maintenance CO
Active No insurance on file
- Kuehnel Plumbing LLC
Active Insurance current
- Kuhlman's Plumbing
Active No insurance on file
- Kumar Jayanti Manibhai
Active No insurance on file
- Kurdian Plumbing INC DBA Picasso Plumbing
Active Insurance current
- Kurt's Plumbing
Active No insurance on file
- Kurt's Plumbing & Heating
Active Insurance current
- Kurtis Plumbing
Active No insurance on file
- Kurtz Mechanical
Active Insurance current
- Kustom Cal Plumbing INC
Active Insurance expiring soon
- Kustom Plumbing INC
Active Insurance current
- Kuttruff Plumbing
Active No insurance on file
- Kvn Plumbing
Active No insurance on file
- Kw Construction
Active Insurance current
- Kw Plumbing
Active No insurance on file
- Kwan Chok Kee INC
Active No insurance on file
- Kwong Associates
Active Insurance current
- Kx Construction LLC
Active Insurance current
- Ky Construction INC
Active No insurance on file
- Ky's Home Improvement Company
Active No insurance on file
- Kyj Construction INC
Active Insurance current
- Kyro Development LLC
Active Insurance current
- Kyu Tae Park
Active No insurance on file
- L & a Plumbing LLC
Active No insurance on file
- L & D Plumbing
Active Insurance current
- L & J Plumbing and Rooter INC
Active Insurance current
- L & L Enterprises
Active No insurance on file
- L & L Plumbing
Active No insurance on file
- L & L Plumbing INC
Active Insurance current
- L & M Plumbing
Active No insurance on file
- L & S Fabco Quality Contractors
Active Insurance current
- L & S Plumbing
Active Insurance current
- L & S Plumbing
Active Insurance current
- L & S Plumbing INC
Active No insurance on file
- L & Y Plumbing
Active No insurance on file
- L a Construction and Maintenance
Active Insurance current
- L a Design Group
Active Insurance current
- L a Fire Protection Service INC
Active Insurance current
- L a Galaxy Plumbing CO
Active No insurance on file
- L a General Contracting
Active No insurance on file
- L a Hydro-Jet & Rooter Service INC
Active Insurance expired
- L a Low Flush Toilets INC
Active Insurance expiring soon
- L a Plumbing Services
Active No insurance on file
- L a R Building Services
Active Insurance current
- L a Rootermax Plumbing
Active No insurance on file
- L a Stearn CO
Active No insurance on file
- L a Wrench INC
Active No insurance on file
- L and J Plumbing
Active Insurance expiring soon
- L B L Construction INC
Active Insurance expired
- L B L Constructors
Active Insurance current
Last checked against state records on Oct 9, 2026. How we get this data.