Updated: May 22, 2026
Location and Projects
Address
1849 LENOLT ST, Redwood City, CA, 94063
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Sione's Concrete Construction
Sione's Concrete Construction, 1849 Lenolt St, Redwood City, CA (Employees: Michelle Clark Unga and Sione Vaini Unga) holds a Concrete license according to the California license board.
Their BuildZoom score of 115 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Sione's Concrete Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Sione's Concrete Construction Services
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Sione's Concrete Construction Contact Information
Phone Number: (650) 759-2477
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Address: 1849 LENOLT ST, Redwood City, CA 94063
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Sione's Concrete Construction Redwood City
Quality
115
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sione's Concrete Construction has a BuildZoom score of 115, which places them above 98% of 336,931 contractors in California.
Activity
|
13 projects
|
2025 |
|
23 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Sione's Concrete Construction has worked on at least
42.0 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.
Experience
|
38 projects
|
Flatwork concrete pours |
|
4 projects
|
Driveway projects |
Analyzing permits over the last 4 years shows that Sione's Concrete Construction mostly works on
flatwork concrete pour
and driveway project
projects.
Pricing
|
12 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $4,000. 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.
Building Permits by Sione's Concrete Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Public works - encroachment permits (general construction)
2024-06-13
Remove and replace 150sf of sidewalk and 50lf of rolled curb and gutter. (ssp4) ***hard deadline of 7/31/24. all work must be completed and permit cannot be extended.***
Valuation:
N/A
Permit #:
EP-2024-000304
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove and replace 5 ft of sidewalk/rolling curb & gutter
Valuation:
$5,800
Permit #:
TE2025-0061
Status:
final
Fee:
$1,706
Permit Type:
Sidewalk
Building Type:
N/A
Repair for trip hazard th2024-0084 and type 4 driveway apron
Valuation:
N/A
Permit #:
TE2025-0044
Status:
final
Fee:
$2,259
Permit Type:
Sidewalk
Building Type:
N/A
Expand current driveway approach to 20 ft wide
Valuation:
$3,500
Permit #:
TE2025-0164
Status:
final
Fee:
$2,259
Permit Type:
Driveway approach
Building Type:
N/A
40 x 5 of city sidewalk curb/gutter replacement
Valuation:
$5,000
Permit #:
TE2025-0075
Status:
final
Fee:
$2,259
Permit Type:
Sidewalk and driv...
Building Type:
N/A
Remove failed wood retaining wall and replace with new concrete retaining wall. replace concrete steps and walkway from driveway to front entry
Valuation:
N/A
Permit #:
BLD2024-02543
Status:
canceled
Fee:
$3,804
Permit Type:
N/A
Building Type:
N/A
Sidewalk and driveway repair for trip hazards
Valuation:
N/A
Permit #:
TE2025-0093
Status:
final
Fee:
$600
Permit Type:
Sidewalk and driv...
Building Type:
N/A
R/r sidewalk and driveway approach
Valuation:
N/A
Permit #:
CP25-0169
Status:
final
Fee:
$2,500
Permit Type:
Misc street imp
Building Type:
N/A
Driveway and front steps- concrete replacement
Valuation:
$25,000
Permit #:
BLDG2023-0672
Status:
final
Fee:
$1,883
Permit Type:
Alteration_434
Building Type:
N/A
Sidewalk and approach
Valuation:
N/A
Permit #:
ENC2025-00019
Status:
final
Fee:
$581
Permit Type:
Sidewalk repair
Building Type:
N/A
Public works - encroachment permits (general construction)
2023-08-25
Remove and replace 230sf of sidewalk and 46lf of rolled curb
Valuation:
$3,500
Permit #:
EP-2023-000207
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Public works - encroachment permits (general construction)
2022-09-22
Remove and replace residential driveway approach. remove and replace 39 of city sidewalk
Valuation:
N/A
Permit #:
EP-2022-000109
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
R/r 55 of city sidewalk & widen driveway approach to 15
Valuation:
N/A
Permit #:
SW23-0005
Status:
final
Fee:
$163
Permit Type:
Sidewalk
Building Type:
N/A
R/r 15 of sidewalk & extend driveway 15
Valuation:
N/A
Permit #:
SW23-0006
Status:
final
Fee:
$163
Permit Type:
Sidewalk
Building Type:
N/A
Remove and replace 275 sq ft of front porch landing and walkway resub 1- sge- 3/13/24-bld *expired permit: bld2019-02217-solar panel resolved on 02/06/2024
Valuation:
N/A
Permit #:
BLD2024-00088
Status:
final
Fee:
$514
Permit Type:
N/A
Building Type:
N/A
Remove and replace 49 lf of city sidewalk curb/gutter
Valuation:
$3,000
Permit #:
TE2024-0264
Status:
final
Fee:
$2,259
Permit Type:
Sidewalk
Building Type:
N/A
R&r 6'x15 sidewalk curb&gutter + 50 sq ft near storm drain
Valuation:
$3,000
Permit #:
TE2024-0263
Status:
final
Fee:
$600
Permit Type:
Sidewalk
Building Type:
N/A
Replace 60 lf of sidewalk c&g. 17 wide driveway approach
Valuation:
$5,000
Permit #:
TE2024-0137
Status:
final
Fee:
$600
Permit Type:
Sidewalk
Building Type:
N/A
35 lf of sidewalk/c&g replacement and 18 wide approach
Valuation:
$5,000
Permit #:
TE2024-0132
Status:
final
Fee:
$600
Permit Type:
Sidewalk
Building Type:
N/A
4'x23 of si107 type 4 sidewalk behind existing approach
Valuation:
$2,500
Permit #:
TE2024-0355
Status:
final
Fee:
$2,259
Permit Type:
Sidewalk
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Sione's Concrete Construction License info
Verified License
| License # | 853436 |
| Status | Active |
| State | California |
| Type | Concrete |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Sione's Concrete Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
115
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Wesco Insurance Company |
169
Permits
- Building permit records show that Sione's Concrete Construction has worked on 169 permitted projects.
Sione's Concrete Construction Employees
MU
Michelle Clark Unga
Officer
SU
Sione Vaini Unga
Sole Owner