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Updated: Apr 25, 2026
Location and Projects
Address
1448 PORTOLA DR, San Francisco, CA, 94127
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Mutual Seiko Construction Engineer
Mutual Seiko Construction Inc at 1448 PORTOLA DR, San Francisco, CA 94127, held a Engineer license (#757312) with the California contractors license board with an expiration date of 11-05-2024. We last verified the license was inactive on 04-24-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Mutual Seiko Construction Inc Services
Start a project today:
Custom Home Build
New Home Construction
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Other Commercial Renovation
Fire Sprinkler Systems
Gas and Piping
Sewer Laterals
Septic Tanks and Systems
Seismic Retrofit
Plumbing
Other Commercial New Constr...
Whole Home Remodel
Addition
Mutual Seiko Construction Inc Contact Information
Phone Number: (415) 469-9461
Address: 1448 PORTOLA DR, San Francisco, CA 94127
Mutual Seiko Construction Inc San Francisco
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Mutual Seiko Construction Inc, log in and update your license info in the “Edit Profile” tab.
Activity
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Mutual Seiko Construction Inc 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
|
2 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
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 Mutual Seiko Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remodel of interior of (e) 2 unit building and (e) garage. development of (e) ground floor storage space as (n) bedroom & living room. rear addition for (n) family room and master bedroom. (n) 4th floor for rec room study & bathroom
Valuation:
$1,100,000
Permit #:
201610271260
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Remove interior staircase & infill opening. re-arrange (e) bathroom. construct fire wall between garage & install (n) kitchenette. all work at ground floor
Valuation:
$20,000
Permit #:
202209273198
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Comply w nov: 202297692: repair minor fire damage in rear bedroom and hallway. no structural damage repair bedroom window not visible from street
Valuation:
$5,000
Permit #:
202210265229
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Remodel 2nd floor kitchen bathrooms & bedrooms. install 1 new bathroom. install new bedroom light. laundry storage room. 40 lights 30 switches 40 receptacles 3 fans 1 dishwasher. 1 garbage disposals 1 microwave 1 range 6 smoke detectors
Valuation:
N/A
Permit #:
E201911125516
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Comply with complaint #20199732 & 201999741. remove and replace 3 windows in kind at rear of building. replace fence at back yard. level rear yard patio. new concrete slab
Valuation:
$15,000
Permit #:
201911127025
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Interior remodel on 2/f relocate kitchen & bathroom. addition new bathroom relocate interior stairs to connect to 1/f convert area behind garage to 2 bedrooms & 2 baths built new deck 5'x19 at rear with stairs replace brick foundation
Valuation:
$80,000
Permit #:
201711164125
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Revision to bpa#202010287617. (e) 2/9 x 6/0 s.h. window to remain (at 3rd floor)
Valuation:
$1
Permit #:
202205093777
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Replace all windows and install new windows. remodle existing exterior facades repair stucco and siding
Valuation:
$35,000
Permit #:
202202037259
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Replace front windows same size and location. replace window trim. repair and replace front siding. marvin wood clad exterior
Valuation:
$35,000
Permit #:
202009113927
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Replace 10 windows at side & rear of house in-kind. not visible from street
Valuation:
$16,000
Permit #:
202308184725
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Install new receptacles at kitchen & bathorom install light fixtures & switches 5 switches 10 receptacles 1 fans 1 dishwasher 1 garbage disposal 1 micorwave 1 range 1 smoke detector
Valuation:
N/A
Permit #:
E201811137165
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel bathroom and kitchenette at ground floor
Valuation:
N/A
Permit #:
PP20221013535
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove & replace kitchen ceramic tilt floor replace face kitchen cabinets replace kitchen counter top
Valuation:
$20,000
Permit #:
201912270824
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Remodel bathroom & kitchenette at ground floor
Valuation:
N/A
Permit #:
E202210132953
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revison under pa #202209273198: addition 1 full bathroom at g/f
Valuation:
$10,000
Permit #:
202212218861
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Addition a full bathroom at ground floor
Valuation:
N/A
Permit #:
PP20221205414
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new wire at kitchen & led lights re - inspection 200 amp services 10 lts 10 switches 15 recepts 1 garage disp 1 micro 1 ranges 4 smoke detects 1 dishwashers
Valuation:
N/A
Permit #:
E201606107492
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1 kitchen 1 sink vanity 1 bathroom 1 kitchen sink
Valuation:
N/A
Permit #:
PP20210309669
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit #1: light fixture. gfic in kitchen & bathroom
Valuation:
N/A
Permit #:
E202103092007
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel (e) 2nd floor 2 bathrooms & kitchen. installl 1 new bathroom @ 1st floor
Valuation:
N/A
Permit #:
PP20191112105
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mutual Seiko Construction Inc Reviews
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Recent Buildzoom Projects
Mutual Seiko Construction Inc License info
Inactive License
| License # | 757312 |
| Status | Inactive |
| State | California |
| Type | General Building, Electrical, Plumbing, Fire Protection, General Engineering |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Mutual Seiko Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 493665 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Mutual Seiko Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Mutual Seiko Construction Inc, log in and update your license info in the “Edit Profile” tab.
Bonded
| Bonded Agent | Old Republic Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
308
Permits
- Building permit records show that Mutual Seiko Construction Inc has worked on 308 permitted projects.
Mutual Seiko Construction Inc Employees
BC
Boris Nicolaev Churkreeff
Rmo
KZ
Kelvin Xie Kan Zeng
Ceo / President