Updated: Feb 05, 2026
Location and Projects
Address
20755 NORTHAMPTION ST, Walnut, CA, 91789
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Mandy Situ Construction
Mandy Situ at 20755 NORTHAMPTION ST, Walnut, CA 91789, held a General Contractor license (#1086601) with the California contractors license board with an expiration date of 01-31-2030. We last verified the license was inactive on 02-04-2026.
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.
Mandy Situ Services
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Mandy Situ Contact Information
Phone Number: (626) 310-2728
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Address: 20755 NORTHAMPTION ST, Walnut, CA 91789
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Mandy Situ Walnut
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Mandy Situ, click “This is My Business” to update your information.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Mandy Situ has worked on at least
4.0 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
|
$20k-$50k |
|
1 project
|
$50k-$100k |
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.
Pump house 676sf
Valuation:
N/A
Permit #:
BLD25-0850
Status:
applied
Fee:
$3,393
Permit Type:
N/A
Building Type:
N/A
Change of use from retail to restaurant with interior remodeling
Valuation:
$90,000
Permit #:
21016-10000-05257
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Solid roof gazebo- inspector to verify the manufacture specs to allow bbq under wood roof gas line & plumbing electrical for bbq fountain & fan
Valuation:
N/A
Permit #:
00599409-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential room addition enclose existing sunroom
Valuation:
N/A
Permit #:
00584974-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Open lattice allum oatio cover
Valuation:
N/A
Permit #:
00603924-RMO
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kpl rv parking center
Valuation:
N/A
Permit #:
CO1308-004
Status:
final
Fee:
$264
Permit Type:
Certificate of occup
Building Type:
N/A
Install 100 amp sub-panel for 2nd unit of duplex
Valuation:
N/A
Permit #:
ELEC990173
Status:
final
Fee:
$30
Permit Type:
N/A
Building Type:
N/A
Addition
Valuation:
N/A
Permit #:
00372016-RBPR
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential re-roof
Valuation:
$6,000
Permit #:
00375832-RRFR
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition
Valuation:
N/A
Permit #:
00370393-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd floor kitchen and bathroom remodel only. like for like. no change in walls and relocation
Valuation:
$42,000
Permit #:
202512222439
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Combo residential – building – alteration (includes meps)
2024-04-11
Convert (e) first floor bedroom into (n) family room remodel (e) first floor bathroom convert (e) second floor family room into (n) master bedroom and (n) master bathroom. convert (e) powder room into (n) walk-in-closet. remodel (e) second floor bathroom and extend walk-in-closet replace the kitchen bay window with new sliders and convert into 4-panel horizontal slider and addition (n... see more
Valuation:
$30,000
Permit #:
COMR-2023-0323
Status:
issued
Fee:
$1,783
Permit Type:
N/A
Building Type:
N/A
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Mandy Situ Reviews
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Recent Buildzoom Projects
Mandy Situ License info
Inactive License
| License # | 1086601 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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 Mandy Situ 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 Mandy Situ, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
8
Permits
- Building permit records show that Mandy Situ has worked on 8 permitted projects.
Mandy Situ Employees
MS
Mandy Huiman Situ
Sole Owner