Updated: May 13, 2026
Location and Projects
Address
21217 MAPACHE DR, Diamond Bar, CA, 91765
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Liang Chen Construction
Liang Chen, 21217 Mapache Dr, Diamond Bar, CA (Employees: Don Liang Chen, Liang Chen, and Liang Chi Chen) holds a General Building license and 2 other licenses according to the California license board.
Their BuildZoom score of 97 ranks in the top 18% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Liang Chen, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Liang Chen Services
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Liang Chen Contact Information
Phone Number: (626) 362-4806
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Address: 21217 MAPACHE DR, Diamond Bar, CA 91765
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Whtr-01: residential water heater replace/changeout | additional details: remove/replace 50 gallon gas water heater in the garage
Valuation:
N/A
Permit #:
00916282-WHTR
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electric (bel) - rset - meter reset to residential
2024-01-26
New replacement 200a main panel for dwelling
Valuation:
N/A
Permit #:
BEL2304819
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(eplan) tree removal - holiday fee
Valuation:
N/A
Permit #:
00907320-PTRP
Status:
issued
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
(eplan) tree removal - holiday fee
Valuation:
N/A
Permit #:
00906734-PTRC
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Legalize upgraded electrical panel moved to the right sideof the house
Valuation:
$250
Permit #:
202100693
Status:
complete
Fee:
N/A
Permit Type:
New electrical se...
Building Type:
N/A
Electric (bel) - rset - meter reset to residential
2022-12-22
Main panel reset only
Valuation:
N/A
Permit #:
BEL2205671
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Roof mounted solar photovoltaic system
Valuation:
N/A
Permit #:
00694285-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct a wood pergola style covered patio attached to the fascia
Valuation:
$2,000
Permit #:
B141298
Status:
ISSUED
Fee:
$390
Permit Type:
N/A
Building Type:
N/A
Roof mounted solar panels
Valuation:
N/A
Permit #:
00606332-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition corner shower to existing 1st floor bathroom subject to field inspection
Valuation:
N/A
Permit #:
00354686-MISR
Status:
final
Fee:
$45
Permit Type:
N/A
Building Type:
N/A
Plumbing for bathroom to existing single family dwelling ref bld2002-01605
Valuation:
$0
Permit #:
PLM2002-01067
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for bathroom to existing single family dwelling ref bld2002-01605
Valuation:
$0
Permit #:
ELE2002-01112
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical for bathroom to existing single family dwelling ref bld2002-01605
Valuation:
$0
Permit #:
MEC2002-00585
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolition of single family dwelling
Valuation:
$0
Permit #:
BLD92-0511
Status:
Finaled
Fee:
$45
Permit Type:
N/A
Building Type:
N/A
Addition bathroom to existing single family dwelling
Valuation:
$4,224
Permit #:
BLD2002-01605
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
00128818-WH
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construction
Valuation:
$0
Permit #:
BUS2002-02661
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building - modify stairway & landing infill wall relocate electrical outlet in foyer. (rgs/mlm) ****permit canceled at the written request of owner 2/24/16*****
Valuation:
N/A
Permit #:
BLD2015-04638
Status:
canceled
Fee:
$583
Permit Type:
N/A
Building Type:
N/A
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Liang Chen Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Liang Chen License info
Verified License
| License # | 1112243 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Liang Chen at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 752620 |
| 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 Liang Chen at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 482686 |
| 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 Liang Chen at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Insured
| Insurer | Hartford Underwriters Insurance Company |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Hartford Underwriters Insurance Company |
11
Permits
- Building permit records show that Liang Chen has worked on 11 permitted projects.
Liang Chen Employees
DC
Don Liang Chen
Sole Owner
LC
Liang Chen
Sole Owner
LC
Liang Chi Chen
Sole Owner
PD
Pingping Du
Manager