SILVERTHORN CONSTRUCTION INC
General Building Contractor — ALPINE, California
Verify with the state before signing.
License expired 07/31/2026 and has not been renewed. If the contractor tells you they've renewed, confirm with the state board before signing a contract. (Retrieved from California; filings after retrieval may not be reflected.) Covers General Building Contractor in ALPINE.
- Expired 07/31/2026
- Bonded $25000
- WC on file
- No complaints
California state licensing board · retrieved 03/18/2026
Retrieved 03/18/2026 — renewals or status changes filed after this date may not be reflected.
The record
License
- Number
- 339580
- Status
- active
- Issued
- 07/11/1977
- Expires
- 07/31/2026
Coverage
- Contractor bond
- $25,000
- Bond company
- AMERICAN CONTRACTORS INDEMNITY COMPANY
- Workers comp
- STATE COMPENSATION INSURANCE FUND
- Wage bond
- $0
Business
- Owner
- Is this you? →
- County
- San Diego
History
- Complaints (3 yrs)
- 0
- Disciplinary
- None on file
- Permits on file
- 10
- Pending actions
- None
Licensed to do
- B — General Building Contractor
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Claim this profile →Disciplinary & complaints
No disciplinary actions on file.
Building permits (10)
Source: LA City Open Data (LADBS)
New Residential Acc Structure — 3313 - ACC - Retaining Walls
1671 ALPINE TERRACE RD MAIN, ALPINE, CA 91901
Cross street: ARNOLD Description of Work: 28 LF COUNTY STD RET WALL (MAX HEIGHT 5'; SLOPING BACKFILL) FOR PROPOSED ADU (SEPARATE PERMIT) (ADU RECORD ID PDS2020-RESACC-000131)
2020-07-14
Issued
New Residential Acc Structure — 3281 - RES - Ag. Bldg, Barn Or Accessory Strct.
15228 ISLA VISTA RD, JAMUL, CA 91935
Cross street: Rocky Mountain Rd Foundation: SLAB Description of Work: 440 sq ft ag building, 320 sq ft poolhouse, 80 sq ft sauna, All as built. (There is also a
2012-03-26
Completed
Residential Alteration-Addn — 6450 - RES - Demolition SFD
4240 WILLOWS RD, ALPINE, CA 91901
Cross street: WILLOWSIDE RD Description of Work: SFD DEMOLITION PERMIT -- NOTE: _ IT MAY NOT BE POSSIBLE TO REBUILD. _ The fact that there was an existing structure on your lot does not guarantee t
2011-09-27
Completed
Residential Alteration-Addn — 6450 - RES - Demolition SFD
1216 WILLOWSIDE TER A, ALPINE, CA 91901
Cross street: WILLOWS Description of Work: SFD DEMOLITION PERMIT -- NOTE: _ IT MAY NOT BE POSSIBLE TO REBUILD. _ The fact that there was an existing structure on your lot does not guarantee that yo
2011-09-27
Completed
Residential Alteration-Addn — 8003 - REN - Solar Photovoltaic Residential (HRA)
15228 ISLA VISTA RD, JAMUL, CA 91935
Cross Street: LYONS VALLEY RD Description of Work: ROOF MOUNT RESIDENTIAL SOLAR PV FOR EXISTING SFD TO BE PLACE ON NEW DET. GARAGE (SEE 1006 20100239) NO. OF MODULES: 66 NO. OF INVERTERS: 3 TOTAL S
2010-12-08
Completed
New Residential Acc Structure — 4360 - RES - Garages For SFD/Duplex
15228 ISLA VISTA RD, JAMUL, CA 91935
Cross street: LYONS VALLEY RD Foundation: SLAB Description of Work: 1730 SF DETACHED GARAGE, FIN/FS; ALSO, ELECTRICAL UPGRADE TO 400 AMPS SERVICE FOR SFD. AND 80 SQFT ADD
2010-12-08
Completed
Residential Alteration-Addn — 3310 - RES - Misc. (Antennas, Tennis Cts, Gazebo)
8423 MELROSE LN, EL CAJON, CA 92021
Cross street: ROYAL RD. Description of Work: 550 SQFT PATIO COVER, 300 SQFT COUNTY STANDARD RETAINING WALL (MAX HEIGHT 5'), 124 SQFT (MAX HEIGHT 6') COUNTY STANDARD FREE STANDING ENTRY WALL, MISC. EL
2008-07-08
Completed
Residential Alteration-Addn — 4340 - RES - Addition/Alter To SFD/Duplex
11305 OAK CREEK DR, LAKESIDE, CA 92040
Cross street:MANZANITA RD Description of Work:TO ADD 280 SQ/FT, Removing 84 L/F of Partitions and 32 SQ/FT Windows, for Existing One story SFD.
2007-05-29
Issued Invalid Expired
Residential Alteration-Addn — 4340 - RES - Addition/Alter To SFD/Duplex
13890 DEANLY WAY, LAKESIDE, CA 92040
Cross street:JACK OAK LANE Description of Work:499 SQ FT 1-STORY SFD ADDITION, 52 SQ FT COVERED PORCH (HRA), MISC ELECTRICAL, PLUMBING & MECHANICAL. NEW ADDITION IS NOT TO BE USED AS A SEPARATE UNIT
2005-08-30
Completed
New Primary Residential SFD-MH — 1010 - RES - New Primary Residential Structure
12466 BUENA VIDA RD, LAKESIDE, CA 92040
Cross street:MUTH VLY RD Description of Work: ~CEDAR FIRE STREAMLINE~ 2715 SQ FT SFD W/ BOTH AND 747 SQ FT DET FIN GARAGE AND 600 SQ FT UNCOVD DECK...200 AMPS ELEC SERVICE...VG2073...ETOP 1005-2003-1
2005-02-18
Completed
Status history
- Reissued
- 07/06/2004
- Last updated
- 03/18/2026
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Official record
Source of record: Contractors State License Board (CSLB). Raw record ID: #339580
California state licensing board · retrieved 03/18/2026