Updated: Apr 25, 2026
Location and Projects
Address
621 ROCK ISLE, Alameda, CA, 94501
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Sigurd W Lorenz Electrician
Sigurd W Lorenz at 621 ROCK ISLE, Alameda, CA 94501, held a Electrician license (#241640) with the California contractors license board with an expiration date of 08-31-1996. We last verified the license was expired on 04-24-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Sigurd W Lorenz Contact Information
Address: 621 ROCK ISLE, Alameda, CA 94501
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace dryrotted framing in garage roof and walls. remove concrete slab on roof and make ceramic tile walking deck with 42 high stucco parapet guard on three sides. addition 1/2 osb and 5/8 type x drywall inside garage walls and ceiling. * added electrical and plumbing 6-4-8 sbb * 6/10/08 - revision submitted to lower parapet wall around garage to 30 addition metal rail from 30 to 42... see more
Valuation:
$18,012
Permit #:
B2008-01975
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reinforce underfloor framing with plywood panels and 5/8 foundation bolts addition 42 lin ft of concrete foundation & cripple wall no drainage work allowed under this permit - separate permit/plans required ***contractor needs to renew biz lic b4 permit is issued
Valuation:
$10,010
Permit #:
B2001-00884
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel. sump pump and drainage to be installed under a separate permit. fire zone 2 prop, refer to bmc 19.28.160 shearwalls being installed at interior kitchen walls while being remodeled
Valuation:
$25,000
Permit #:
B2002-01248
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel kitchen and bathroom. upgrade wiring new gas fireplace & demand water heater.(one condo unit of duplex)
Valuation:
$48,306
Permit #:
B2007-04893
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel kitchen, 2 bathrooms, replace 12 window sashes, install 2 replacement casements.
Valuation:
$84,000
Permit #:
B2003-01434
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install six windows
Valuation:
$12,000
Permit #:
B2014-03150
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish fireplace and chimney. frame unfilled opening w/new footing and new gas fireplace fire zone 2 property
Valuation:
$13,000
Permit #:
B2003-04607
Status:
Closed Expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bathroom remodel (elec. radiant heat in floor ok as is secondary to primary heater of fau into bath)
Valuation:
$22,000
Permit #:
B2002-00916
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace deck and eliminate hot tub. must comply with restrictions in fire zones.
Valuation:
$18,000
Permit #:
B2003-02883
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Seismic upgrades to crawl space. bolting, shearwalls, ufp's, a35's
Valuation:
$9,800
Permit #:
B2008-02546
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace brick foundation & rebuild front porch
Valuation:
$36,389
Permit #:
B1998-04509
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of new gas fireplacew
Valuation:
$0
Permit #:
B2003-04610
Status:
Closed Expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing-sewer test only (resale)
Valuation:
$50
Permit #:
P98-5680
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Sigurd W Lorenz License info
Inactive License
| License # | 241640 |
| Status | Inactive |
| State | California |
| Type | Electrical |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Sigurd W Lorenz at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Sigurd W Lorenz, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $5,000 |
10
Permits
- Building permit records show that Sigurd W Lorenz has worked on 10 permitted projects.
Sigurd W Lorenz Employees
SL
Sigurd W Lorenz
Sole Owner