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Location and Projects

Address
1146 SONORA COURT, Sunnyvale, CA, 94086
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William G Barnes & Son Co Construction

Serving Sunnyvale and the surrounding Silicon Valley area for over 50 years, William G Barnes & Son Co Inc specializes in mechanical contracting services for commercial and industrial properties. This company’s portfolio includes projects such as HVAC system installation, ductwork fabrication, and mechanical system upgrades for offices, schools, and laboratories. Their expertise covers both new construction and retrofit work, addressing heating, ventilation, and air conditioning requirements for a range of building types. William G Barnes & Son Co Inc also works with property managers, facility owners, and general contractors to deliver efficient mechanical solutions tailored to site-specific needs. With half a century of industry presence, the company has built experience in managing complex mechanical projects from design through installation and ongoing system maintenance in Silicon Valley’s evolving commercial landscape.

William G Barnes & Son Co Inc Services

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William G Barnes & Son Co Inc Contact Information

Phone: (408) 732-9460 Edit
Address: 1146 SONORA COURT, Sunnyvale, CA 94086 Edit

Building Permits by William G Barnes & Son Co Inc

Sort by: Notable Notable | Date Date | Job Value Job Value
Building permit
1984-04-03
Complete interior of industrial building addition partitions storage racks; type iii-n; occ b-2; combo: building electrical plumbing mech; co# 5081; mf=8
Valuation:
N/A
Permit #:
BLD1982-59392
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tree removal tree removal permit - significant tree removal for 2 signficant eucalyptus trees
Valuation:
$0
Permit #:
PLN2000-00448
Status:
Approved
Fee:
$118
Permit Type:
N/A
Building Type:
N/A
Grading 6500 cu yds
Valuation:
N/A
Permit #:
BLD1975-44312
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building/non-residential/building/alteration
1991-11-06
Floor repair
Valuation:
$15,000
Permit #:
B9105565
Status:
Final
Fee:
$395
Permit Type:
N/A
Building Type:
N/A
Construct masonry fence & slab for proposed tank; occ:i---mf
Valuation:
N/A
Permit #:
BLD1973-44741
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Erect industrial building; occ:f-2---mf
Valuation:
N/A
Permit #:
BLD1975-44329
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building permit
1992-12-09
Replace 40 gallon hot water heater
Valuation:
$0
Permit #:
PLM92-0302
Status:
Cancelled
Fee:
$32
Permit Type:
N/A
Building Type:
N/A
Residential pool
2003-04-08
Residential pool and spa
Valuation:
$0
Permit #:
BSP030372
Status:
FINAL
Fee:
$221
Permit Type:
N/A
Building Type:
N/A
Regular building permit
2007-06-12
Construct loading dock and ramp----see bld1975-44329 for dwg
Valuation:
$6,500
Permit #:
BLD1975-44465
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A

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