Johnston & Koper Group Inc
Costa Mesa, California 92627
72/100
Good
Trust Score
License Details
- License Number
- 1050311
- State
- CA
- Type
- C36
- Class
- C36
- Issued
- Feb 19, 2019
- Expires
- Feb 28, 2027
- Trade
- Plumber
Bond & Insurance
- Bond Amount
- $25,000
- Bond Status
- N/A
- Workers' Comp
- N/A
Contact
- Phone
- (949) 763-2000
Data from CSLB. Last verified: May 9, 2026.
About Johnston & Koper Group Inc
Johnston & Koper Group Inc is a licensed plumber based in Costa Mesa, California. This contractor holds an active CA license (#1050311) , issued 7 years ago. This contractor has a Trust Score of 72/100, indicating moderate compliance with state licensing requirements.