Updated: May 03, 2026
Location and Projects
Address
51 CAPAY CIRCLE, South San Francisco, CA, 94080
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Alexander Borabo Construction
Serving homeowners throughout the San Francisco Peninsula since 1971, Alexander Company specializes in the replacement and installation of windows, doors, and skylights. As a family owned and operated business, the company is led by John and Jeff Alexander, who guide clients through each phase of their process—from initial design to final installation. Projects frequently involve products from brands such as Milgard, Simonton, Andersen, and Marvin, with a broad array of styles, materials, and finishes available at their Burlingame showroom. With over 50 years in business, Alexander Company emphasizes thorough consultation and local expertise for residential projects in Burlingame, South San Francisco, and neighboring Peninsula communities. Thousands of Bay Area homeowners have relied on their experienced team for long-term value and professional service.
Alexander Borabo Services
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Alexander Borabo Contact Information
Phone Number: (650) 583-0860
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Address: 51 CAPAY CIRCLE, So San Francisco, CA 94080
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Alexander Borabo So San Francisco
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Alexander Borabo has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Alexander Borabo has worked on at least
3.0 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.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
$5k-$20k |
|
1 project
|
$250k-$500k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Lower floor (286sf) additon of new bedroom and bathroom. upper level remodel of kitchen and staircase. scope include mechanical electrical and plumbing work. (2) skylight and relocate laundry
Valuation:
$350,000
Permit #:
202402166020
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
New 2 way communication system. provide (1) command center with power supply and back up battery. (5) remote call stations at elevator lobby with signages. (1) fire alarm control relay for door release. (1) dual monitoring module for 2-way commercial spupervision
Valuation:
$15,000
Permit #:
202209162609
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
67 - clinics-medi...
Comply with violation #202172332. kitchen and bathroom cabinets tub shower pan sink toilet on the same location. no structural framing. 6 windows installation(retrofit) 2 back bedrooms kitchen dining and bathroom. all window not visible from the street
Valuation:
$100,000
Permit #:
202101213001
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Re-roof with class a or b material weighing less than 6 pounds per sq. ft. over existing solid sheathing (100) squares. for residential roof replacement > 50% of the total roof area apply cool roof product labeled and certified by cool roofing rating council (crrc). cool roof may be required for non-residential buildings per title 24 part 6 section 141.0(b)2b
Valuation:
$55,000
Permit #:
20016-20000-04012
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Re-roof with class a or b material weighing less than 6 pounds per sq. ft. over existing solid sheathing (110) squares. for residential roof replacement > 50% of the total roof area apply cool roof product labeled and certified by cool roofing rating council (crrc). cool roof may be required for non-residential buildings per title 24 part 6 section 141.0(b)2b
Valuation:
$55,000
Permit #:
20016-20000-04008
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Bathroom and bedroom addition. remodel of kitchen and relocate laundry room. addition new water heater with underground work
Valuation:
N/A
Permit #:
PP20240216363
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen/bathroom (2 ) remodel for residential buildings (no structural changes)
Valuation:
$18,900
Permit #:
22016-20000-09435
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Addition of bathroom and bedroom at lower floor. kitchen remodel and upgrade to main panel to 200amps
Valuation:
N/A
Permit #:
E202402162462
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen/bathroom (1) remodel for residential buildings (no structural changes). re-stucco for single family dwellings and duplexes only. window (3) and door (1) change-out (same size & type) for residential buildings. dual glazing labeled and certified by national fenestration rating council (nfrc) is required for doors and windows replaced in all residential buildings three stories o... see more
Valuation:
$10,000
Permit #:
19016-20000-23667
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
(21)window and (8) door change-out (same size & type) for residential buildings. dual glazing labeled and certified by national fenestration rating council (nfrc) is required for doors and windows replaced in all residential buildings three stories or less per section 150.2(b)1b of title 24
Valuation:
$8,950
Permit #:
18016-10000-32014
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Electrical service upgrade/repair 400a comply with department order effective date 11/07/2019. permit will expire 30 days from issuance date
Valuation:
N/A
Permit #:
20041-10000-31136
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Photovoltaic- install 7.367 kw solar roof + 13.5kwh energy storage system rev1 - changing from backup switch to backup gateway. 8.64 kw solar roof with 120 modules + 13.5 kwh energy storage system
Valuation:
$16,000
Permit #:
BLD2021-62071
Status:
final
Fee:
$1,131
Permit Type:
N/A
Building Type:
N/A
Install new 4.08 kw photovoltaic array system w 24 mods and (1) 13.5 kwh energy storage systems revised 5/18/2023 to match plans 24 mods is incorrect the plans reflect 12 mods only
Valuation:
$15,000
Permit #:
BLD2021-60221
Status:
final
Fee:
$1,211
Permit Type:
N/A
Building Type:
N/A
Install new 4.08 kw photovoltaic array w 12 modules and (1) 13.5 kwh energy storage system
Valuation:
N/A
Permit #:
BLD2021-60990
Status:
filed
Fee:
$278
Permit Type:
N/A
Building Type:
N/A
Install new 5.78 kw photovoltaic array w 17 modules and (1) 13.5 kwh energy storage system
Valuation:
N/A
Permit #:
BLD2021-60678
Status:
filed
Fee:
$294
Permit Type:
N/A
Building Type:
N/A
Install new 8.16 kw photovoltaic array w 24 modules w (2) 27 kwh energy storage systems
Valuation:
N/A
Permit #:
BLD2021-61015
Status:
filed
Fee:
$440
Permit Type:
N/A
Building Type:
N/A
Demolish the single-family dwelling with attached garage to clear lot. sewer cap requried
Valuation:
$8,000
Permit #:
20019-20000-01093
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace outlets and switches
Valuation:
N/A
Permit #:
22041-10000-13286
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Install new 6.8 kw photovoltaic array w 20 modules
Valuation:
$7,000
Permit #:
BLD2021-61307
Status:
final
Fee:
$467
Permit Type:
N/A
Building Type:
N/A
An amendment to: pp20210125921 to addition kitchen
Valuation:
N/A
Permit #:
PP20210222347
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Alexander Borabo Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Alexander Borabo License info
Verified License
| License # | NAT-F230125-1 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Alexander Borabo at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 778074 |
| Status | Active |
| State | California |
| Type | Glazing, General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Alexander Borabo at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 866157 |
| Status | Active |
| State | California |
| Type | Glazing, General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Alexander Borabo at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 103332 |
| Status | Active |
| City | South San Francisco |
| Type | Contractor |
| Business Type | Sole Ownership |
- When BuildZoom last verified this license, it had an expiration date of October, 2017. Check the current license status of Alexander Borabo with the The City of South San Francisco, CA
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 581960 |
| Status | Inactive |
| State | California |
| Type | Glazing |
| 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 Alexander Borabo at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
984
Permits
- Building permit records show that Alexander Borabo has worked on 984 permitted projects.
Alexander Borabo Employees
AB
Alexander De Guzman Borabo
Owner
JA
John Walter Alexander
Sole Owner
LR
Lucia Corazon Dela Rosa
Officer
RR
Richard Alexander Rhodes
Owner