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Updated: Apr 27, 2026
Location and Projects
Address
58 W Portal Ave, San Francisco, CA, 94127
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Prior Construction Engineer
Prior Construction, 58 W Portal Ave, San Francisco, CA (Employee: Sean Joseph Prior) holds a General Building license and 2 other licenses according to the California license board.
Their BuildZoom score of 124 ranks in the top 1% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Prior Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Prior Construction Services
Start a project today:
Prior Construction Contact Information
Phone Number: (415) 405-5831
Address: 58 W Portal Ave, San Francisco, CA 94127
Prior Construction San Francisco
Quality
124
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Prior Construction has a BuildZoom score of 124, which places them above 99% of 336,931 contractors in California.
Activity
|
1 project
|
2026 |
|
22 projects
|
2025 |
|
19 projects
|
2024 |
|
26 projects
|
2023 |
Our building permit records indicate that Prior Construction has worked on at least
68.0 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 |
|
4 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
The typical size of their permits is approximately $10,000. This graph shows the distribution of these job values.
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.
T-mobile - remove (e) cabinet (3) antennas (3) rrus & cabling. install (3) ericsson air 6419 b41 antennas (3) amphenol apxvaall18m-u-j20 antennas (3) ericsson 4460 rrus (3) ericsson 4480 rrus (3) hybrid cables (1) 200a power panel cabinet w cam-lok (1) e6160 v2 air conditioning cabinet
Valuation:
$50,000
Permit #:
202503202662
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
45 - school
Replace partial foundation(brick to reinf. concrete) upgrade wood girder to steel girder at garage. reduce quantty of posts. partial slab replacement
Valuation:
$55,000
Permit #:
202401033363
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Replace clay section of sewer outside the building also replace house trap outside building
Valuation:
N/A
Permit #:
PP20250203335
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral outside of building to house trap in sidewalk
Valuation:
N/A
Permit #:
PP20250113955
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral outside of building to house trap in sidewalk
Valuation:
N/A
Permit #:
PP20250113954
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral outside of building to house trap in sidewalk
Valuation:
N/A
Permit #:
PP20250113953
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral outside of building to house trap in sidewalk
Valuation:
N/A
Permit #:
PP20250113952
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral outside the building as well as house trap
Valuation:
N/A
Permit #:
PP20250507108
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral outside the building as well as house trap
Valuation:
N/A
Permit #:
PP20250507107
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay sewer line from from the side of the house to house trap in sidewalk with hdpe appex 60ft. replace clay house trap with cast iron house trap
Valuation:
N/A
Permit #:
PP20230222629
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace caly sewer lateral outside building. also replace clay house trap
Valuation:
N/A
Permit #:
PP20250214595
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay sewer lateral outside building. also replace clay house trap
Valuation:
N/A
Permit #:
PP20250214593
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral only outside building to house trap. replace clay house trap install hdpe for lateral cast iron for house trap
Valuation:
N/A
Permit #:
PP20230327158
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace sewer lateral from left-hand side of the home as well as connection from front of property including p-trap in landscape area
Valuation:
N/A
Permit #:
PP20230201328
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace the sewer lateral from the building to landscaping area. also replace house trap in landscaping area. installing hdpe pipe for the sewer lateral and new cast iron house trap
Valuation:
N/A
Permit #:
PP20220901827
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay house sewer trap to cast iron pipe. underground
Valuation:
N/A
Permit #:
PP20250523448
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
In-kind exterior siding repair and/or replacement along side (facing euclid) in-kind minor dry rot repair. approx. 100 sq. ft. area
Valuation:
$5,000
Permit #:
202411064478
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Replace clay section of sewer lateral just outside the building to house trap. repalce with hdpe and cast iron house trap
Valuation:
N/A
Permit #:
PP20230322091
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace approx. 4 feet of sewer outside building
Valuation:
N/A
Permit #:
PP20250214594
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace clay section of sewer lateral outside the buiolding to hdpe. replace clay house trap to cast iron. all work is exterior
Valuation:
N/A
Permit #:
PP20240703706
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Prior Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Prior Construction License info
Verified License
| License # | 1119116 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Prior Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1028645 |
| Status | Active |
| State | California |
| Type | General Engineering |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Prior Construction 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 # | 1028645 |
| Status | Active |
| State | California |
| Type | General Engineering |
| Class | A |
| Business Type | Sole Ownership |
- When BuildZoom last verified this license, it had an expiration date of July, 2025. Check the current license status of Prior Construction with the California Contractors State License Board
This is a sample of licensing data; click here to access a complete history.
124
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
140
Permits
- Building permit records show that Prior Construction has worked on 140 permitted projects.
Prior Construction Employees
SP
Sean Joseph Prior
Sole Owner