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Location and Projects

Address
1000 WASHINGTON STREET, San Carlos, CA, 94070
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GONSALVES & STRONCK CONST. Construction

Founded in 1993 by Keith Gonsalves and William Stronck, Gonsalves & Stronck Construction Co., Inc. offers construction management and general contracting services throughout the Greater San Francisco Bay Area. The company primarily focuses on new construction and renovation of commercial properties, with experience in office improvements, research laboratories, seismic retrofits, essential-services facilities, recreation centers, educational institutions, and municipal buildings. Projects range in scope and complexity, serving both public and private sector clients. The leadership team remains active in the firm and leads a core group of professionals who utilize current industry techniques, value engineering, and comprehensive project management approaches from preconstruction through project closeout. Gonsalves & Stronck emphasizes collaboration with design teams and clients to proactively resolve project challenges and deliver commercial facilities tailored to the needs of Bay Area communities.

GONSALVES & STRONCK CONST. CO Services

Start a project today:
Kitchen Remodel Bathroom Remodel Basement Remodel Whole Home Remodel Addition

GONSALVES & STRONCK CONST. CO Contact Information

Phone: (415) 802-2960 Edit
Address: 1000 WASHINGTON STREET, San Carlos, CA 94070 Edit

GONSALVES & STRONCK CONST. CO San Carlos

Quality

105
92nd percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
GONSALVES & STRONCK CONST. CO has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.

Activity

2 projects
 2025
3 projects
 2024
2 projects
 2023
Our building permit records indicate that GONSALVES & STRONCK CONST. CO has worked on at least 7.0 projects over the past 3 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Pricing

1 project
 $20k-$50k
2 projects
 $100k-$250k
1 project
 $250k-$500k
1 project
 $1mil+
Value Not Public: 3.0 projects
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Building Permits by GONSALVES & STRONCK CONST. CO

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2022-06-21
A tool fit up and anchorage of tools at room 232 including mechanical electrical and plumbing processing piping work ** 2/24/23 rev cr1: revised equipment layout at lab 232 added tools 232-23 to 232-40.1 to lab 232 revised equipment matrix with added tools (hm)
Valuation:
$1,589,999
Permit #:
2022 678084 CI
Status:
issued
Fee:
$8,163
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2023-06-28
A tool fit up and anchorage of tools in lab 275. mechanical electrical and plumbing process piping work will be performed to support the tool hook up
Valuation:
$410,000
Permit #:
2023 103486 CI
Status:
issued
Fee:
$6,960
Permit Type:
R & d lab
Building Type:
N/A
Building permit
2200 Broadway St, Redwood City, CA, 94063
2024-03-28
** job org 39075 ** (3)three story horizontal addition. stucco & glass exterior. remodel existing building for connection to addition and including new restrooms at basement and vertical addition. kitchen on 3rd floor. remodel at existing ground floor for collections department resubmittal#1-jaw-8/11/23- response to building fire civil resub#2-rcc-12/11/23-resonse to building fire civ... see more
Valuation:
N/A
Permit #:
BLD2022-03032
Status:
issued
Fee:
$3,200
Permit Type:
N/A
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-06-09
Facility tenant improvement area of work: 9, 950 sq ft with calcs scope of work: 1) install new dryroom (third party) testing lab exit corridors control room microscope room storage and other support spaces 2) install rooftop mechanical units ** not be adding any new chemicals/hazardous materials to the building as part of this project. ** 8/10/21 deferred submtital and revision delt... see more
Valuation:
$4,673,415
Permit #:
2021 028322 CI
Status:
issued
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-06-10
Existing tenant office tenant improvement of 16, 210 sq ft with calcs no hazmat scope of work: 1) demolish and addition walls to create new offices new restrooms core conference rooms. renovate lobby. with new electrical work mechanical ductwork and plumbing 2) addition new mechanical penthouse for future roof access ** 8/13/21 revisions delta #1 to (bmep) reduce office tenant improve... see more
Valuation:
$3,193,462
Permit #:
2021 033509 CI
Status:
issued
Fee:
N/A
Permit Type:
Office
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2022-11-04
Installation of tools from lab 207 to lab 345 in existing building with associated structural mechanical and electrical will be revised to serve these tools in new location. area of work: 440 sq ft
Valuation:
$410,000
Permit #:
2022 692908 CI
Status:
issued
Fee:
$8,070
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-12-09
Existing tenant tools installations with calcs scope of work: 1) tool fit up and anchorage of tools in rooms 253 254 255 256 257 258 259 260 262 263 and 267 2) mechanical electrical and plumbing processing piping will be performed to support the tool hook up
Valuation:
$242,000
Permit #:
2021 054668 CI
Status:
issued
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2022-12-22
For existing tenant to create new lab spaces no calcs. no tool installation. scope of work: 1) provide architectural elements to building a new lab with full height partitions new doors and lighting
Valuation:
$200,000
Permit #:
2022 700980 CI
Status:
issued
Fee:
$8,403
Permit Type:
R & d lab
Building Type:
N/A
Building permit
47633 Westinghouse Dr, Fremont, CA, 94539
2023-08-14
This project consists of the rework of 4, 609 sf of the existing single story building and minor exterior work for an existing cda compressor. there will be various tools installed in specific rooms to provide tibaray with a new workspace for their product development
Valuation:
$150,000
Permit #:
BLD2024-00866
Status:
canceled
Fee:
$4,649
Permit Type:
Alteration
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2020-11-04
Tool package # 2 with cacls area of work: 1st floor = 1, 350 sq ft and service yard 100 sq ft. scope of work: 1) tool fit up and anchorage of tools in lab # 231 and at service yard a001. 2) mechanical electrical and plumbing process piping work will be performed to support the tool hookup ** facility upgrades and all accessibility improvements are under plan check # 17-032856 ** 10/22... see more
Valuation:
$322,725
Permit #:
2020 114393 CI
Status:
final
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2020-07-24
Scope of work: tenant improvement. for new tenant improvement see conditions *** area of work: 54, 285 *** - manufacturing for hazardous materials - new office area - new break rooms - new restrooms - new rtu's - new non-load bearing walls - new site lighting - new ev charging stations - all updated electrical mechanical & plumbing per approved plans requires certificate of occupan... see more
Valuation:
$5,584,801
Permit #:
2018 130045 CI
Status:
final
Fee:
N/A
Permit Type:
Manufacturing
Building Type:
N/A
Building permit revision
2200 Broadway St, Redwood City, CA, 94063
2025-03-19
Floor and reflected ceiling plans for gallery 205 2200 broadway carriage house resub#1 - jzb - 6/30/25 - response to building bb: 074-972-249
Valuation:
N/A
Permit #:
REV2022-03032-003
Status:
triage
Fee:
$196
Permit Type:
N/A
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-07-30
Tool package install with calcs area of work: 4, 610 sq ft. scope of work: 1) tool fit up and anchorage of tools in lab space 211 212 219 222 2) mechanical electrical and plumbing process piping work will be performed to support the tool hookup
Valuation:
$42,725
Permit #:
2021 010186 CI
Status:
issued
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-08-25
Existing tenant tools installations with calcs scope of work: 1) tool fit up and anchorage of tools in rooms 253 254 255 256 257 258 259 260 262 263 and 267 2) mechanical electrical and plumbing processing piping will be performed to support the tool hook up
Valuation:
N/A
Permit #:
2021 044427 CI
Status:
filed
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Fire engineering
145 Baytech Dr, San Jose, CA, 95134
2021-04-09
Pc# 17-032856 scope of work: tenant improvement. for new tenant improvement see conditions *** area of work: 54, 285 *** - manufacturing for hazardous materials - new office area - new break rooms - new restrooms - new rtu's - new non-load bearing walls - new site lighting - new ev charging stations - all updated electrical mechanical & plumbing per approved plans requires certific... see more
Valuation:
N/A
Permit #:
2021 023342 FE
Status:
complete
Fee:
N/A
Permit Type:
Variance
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-11-16
Install (1) tool consisting of 5 components replicated 3 times at room 232 with calcs
Valuation:
$570,555
Permit #:
2021 056707 CI
Status:
issued
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-11-18
Install (14-15) tools and equipmentat room 207 222 with calcs
Valuation:
$281,528
Permit #:
2021 057129 CI
Status:
issued
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-10-29
Existing tenant at room 232 tools installations with calcs scope of work: 1) install (10) tool cabinets and a service mezzanine 2) new service stairs and a material lift connected to service platform
Valuation:
N/A
Permit #:
2021 054262 CI
Status:
filed
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-10-13
Install (1) tool consisting of 5 components replicated 3 times at room 232 with calcs
Valuation:
$570,555
Permit #:
2021 044073 CI
Status:
filed
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A
Commercial/industrial
145 Baytech Dr, San Jose, CA, 95134
2021-09-29
Install (14-15) tools and equipmentat room 207/222 with calcs
Valuation:
$281,528
Permit #:
2021 042044 CI
Status:
issued
Fee:
N/A
Permit Type:
R & d lab
Building Type:
N/A

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