✓

License is active

Source: Contractors State License Board (CSLB)

✓

Licensed

Current and in good standing

✓

Bonded

$25,000 surety bond

✓

WC exempt

No employees — exempt from requirement

✓

Clean record

No complaints or disciplinary actions

California licensing requirements →

🛡️

Hiring this contractor?

Get alerts if their license status changes.

🏢

Is this your business?

Claim your profile to manage your listing.

JOHN LOUIS BLONSKI

License Number: 797167
State: California
Status: active
Business Type: Sole Owner
Address: 5925 LA JOLLA BLVD LA JOLLA, CA, 92037 San Diego County
Phone: (858) 456 2597

License Dates

Issued

07/09/2001

Expires

07/31/2027

Expires in 16 months

CSLB Last Updated

08/15/2025

License Classifications

C10 C10

Personnel & Officers

BLONSKI JOHN LOUIS

Sole Owner

HIC

Active

Contractor Bond

Bonded

Amount: $25,000

Company: ATLANTIC SPECIALTY INSURANCE COMPANY

Bond #810025687

Effective: 06/04/2025

Workers' Compensation

Exempt

Owner/officer with no employees — exempt from WC requirement

CSLB designation: Exempt

Complaints & Disciplinary History

No disciplinary actions on file

This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.

Building Permits

Source: LA City Open Data (LADBS)

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

10453 GLEN ASPEN CT, SAN DIEGO, CA 92127

CROSS STREET: GLEN ASPEN DR Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures from c

2019-08-26

Completed

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

17204 EAGLE CANYON PL, SAN DIEGO, CA 92127

CROSS STREET: MONTEREY RIDGE DR Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures fr

2019-07-16

Completed

Residential Alteration-Addn — 8070 - ACC - (Online) Electrical - Existing Main Svc Upgrade (Max 400A)

981 NEIGHBORLY LN, RAMONA, CA 92065

CROSS STREET: Shandy Ln Description of Work: Existing Residential Main Electrical Service Upgrade - 225A - (Online Permit) *The scope of work is limited to upgrade of the existing main service pane

2019-06-04

Completed

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

981 NEIGHBORLY LN, RAMONA, CA 92065

CROSS STREET: SHADY LN Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures from compli

2019-05-06

Completed

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

8660 TILLAGE LN, SAN DIEGO, CA 92127

CROSS STREET: ALMANOR WY Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures from comp

2019-02-27

Completed

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

6489 RAINBOW HEIGHTS RD, TEMECULA, CA 92592

CROSS STREET: RAINBOW PEAKS Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures from c

2018-12-04

Completed

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

16832 SILVER CREST DR, SAN DIEGO, CA 92127

CROSS STREET: RANCHO BERNARDO Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures from

2018-10-24

Completed

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

3150 MONTESANO RD, ESCONDIDO, CA 92029

CROSS STREET: VIA RANCHOS PKWY Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures fro

2018-10-22

Completed

Residential Alteration-Addn — 8002 - REN - Solar Photovoltaic Roof Mount Residential - Online

3665 VICTORIA HEIGHTS PL, ALPINE, CA 91901

CROSS STREET: OVERLAND PASSAGE Description of Work: HRA (Online Permit) ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD (No Meter Upgrade). This Permit does not exempt any existing structures fro

2018-10-22

Completed

Verify this record on the official state licensing board

View on Contractors State License Board (CSLB) →

Learn how to verify contractor licenses in California

California licensing guide →

Data sourced from official state licensing board records. Always confirm critical information directly with the state board.