Updated: Apr 29, 2026
Location and Projects
Address
756 ROCKING HORSE ROAD, Walnut, CA, 91789
Use our bidding system to
request a quote
Tien Nguyen HVAC/Mechanical Contractor
Tien Nguyen at 756 ROCKING HORSE ROAD, Walnut, CA 91789, held a HVAC/Mechanical Contractor license (#625430) with the California contractors license board with an expiration date of 08-31-2023. We last verified the license was expired on 04-28-2026.
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.
Tien Nguyen Contact Information
Phone Number: (626) 201-5309
Edit
Address: 756 ROCKING HORSE ROAD, Walnut, CA 91789
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Tien Nguyen 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 Tien Nguyen, click “This is My Business” to update your information.
Activity
|
2 projects
|
2025 |
Our building permit records indicate that Tien Nguyen has worked on at least
2.0 projects over the past year.
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
|
$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.
Building (residential) - single family/duplex addition
2025-05-14
No Description Available
Valuation:
$60,923
Permit #:
BLDR-2024-0851
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove and replace existing projecting blade sign with attached exterior illumination, in the same location on the 2nd level of building, extending 3' 4" from the building wall. sign is 15'-7" in height. cc-4-2/cstl cpioz-b peninsula community area
Valuation:
$0
Permit #:
1567738
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
Signs - Permanent
Mid city:eastern area; combination building permit for a remodel and addition to an existing sdu. work consists of converting an existing closet and storage into a master bathroom and closet adding a master bedroom removing and replacing 2 windows and re- roofing. house built in 1950. zone: rs-1-7 cupd-boundary geo haz:53
Valuation:
$23,992
Permit #:
1405852
Status:
complete
Fee:
$1,370
Permit Type:
Add/alt 1 or 2 fa...
Building Type:
N/A
City hts.prop. 1, 434sf one story addition to an ex one story single family residence w/in a multi residence zone. three houses existing in one lot. proj. includes demolish exist. exter. walls leaving one 11ft exter.wall &creating(2)bed, family room, living room, dining kitchen &(2)bath. also incl demolish ex 216sf det garage &180sf studio.rm-1-1within the cupd house was built in 1937... see more
Valuation:
$144,834
Permit #:
177882
Status:
complete
Fee:
$880
Permit Type:
Add/alt 1 or 2 fa...
Building Type:
N/A
City heights, combo permit, 2 story addition to an existing single story sdu. remove roof on existing garage and add 2'-0" to the height of the building and new roof. zone = rs-1-7, central urbanized, transit area.**owner =sanh v. pham / census = 25.01 ****
Valuation:
$208,980
Permit #:
60442
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
Add/Alt 1 or 2 Fa...
City heights, combo permit, 2 story addition to an existing single story sdu. remove roof on existing garage and add 2'-0" to the height of the building and new roof. zone = rs-1-7, central urbanized, transit area.**owner =sanh v. pham / census = 25.01
Valuation:
$208,980
Permit #:
60442
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
Add/Alt 1 or 2 Fa...
New residential construction: 8, 753 sq. ft. 2 story 5-bedroom single family residence with attached 1, 039 sq. ft.garage. 221 sq. ft. for (2) balconies over (2) 920 sq. ft. patio cover
Valuation:
$0
Permit #:
BLD2014-01443
Status:
Received
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alterations no calcs scope of work to include: 1) demolish walls to expand kitchen kitchen remodel 2)
Valuation:
$15,100
Permit #:
2017 004358 RS
Status:
Under Inspection
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mid city - city heights combo permit for 2 story 3 bedroom 4 bathroom sdu on lot with extg sdu. rm-1-1/cupd/transit area/res tandem prkg. (demo extg rear sdu under separate permit)
Valuation:
$151,859
Permit #:
252219
Status:
complete
Fee:
$7,504
Permit Type:
One family detached
Building Type:
N/A
City heights: combo approval to permit a new duplex where an extg single family dwelling exists on the property. rm-1-3 central urbanized planned district
Valuation:
$313,855
Permit #:
826363
Status:
complete
Fee:
$20,451
Permit Type:
Two family apartment
Building Type:
N/A
Commercial/multi-family/condo/apt. - water heater, electrical, plumbing, heating, air
2013-05-31
Area: c01 the wedding shop elec serv e--connection of elec. meter, no construction or change in use, suite 15
Valuation:
$1
Permit #:
MISC2013-00696
Status:
Completed
Fee:
$87
Permit Type:
N/A
Building Type:
N/A
Establish a 2-lot single family residential subdivision for an existing vacant lot
Valuation:
$0
Permit #:
SUBPM2014-100
Status:
Received
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for new100 amp disconnect (meter located on 842 n lemon - sac2012-00009) gas line connection from house to meter
Valuation:
$0
Permit #:
BLD2012-00632
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential remodel
Valuation:
N/A
Permit #:
00730260-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Overcrowding improper occupancy: living in garage and using patio and shed to sleep in trash throughout the property landscape not being maintained house needs paint
Valuation:
$0
Permit #:
COD2004-22152
Status:
Closed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bldg- repair damaged support post @ front porch remove unpermitted framing @ porch and replace 2 windows @ front of house like for like --no structural changes (nt)
Valuation:
N/A
Permit #:
BLD2006-00392
Status:
final
Fee:
$102
Permit Type:
N/A
Building Type:
N/A
Install evc outlet in carport
Valuation:
N/A
Permit #:
Elec-19-1078
Status:
issued
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Encolosed patio with tenants living inside made extension on block wall built wall to front/side of property w/no permits
Valuation:
$0
Permit #:
COD2010-10046
Status:
Closed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Friendly village park #96: replace carport/awning support po
Valuation:
$500
Permit #:
B-MH22-0007
Status:
final
Fee:
$234
Permit Type:
Code enfr
Building Type:
N/A
Recyclable business, parking truck stored w/misc items to front of lemon st (blue pick up truck lic 5b55912), sorts metal on lemon st
Valuation:
$0
Permit #:
COD2014-05994
Status:
Closed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
142
BZ Score
$6K
Avg Project
-
Projects
146
BZ Score
$9.2K
Avg Project
-
Projects
138
BZ Score
$14K
Avg Project
-
Projects
Tien Nguyen Reviews
BuildZoom hasn't received any reviews for Tien Nguyen. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Let us find you an HVAC pro in your area today
We'll search our vast network of HVAC Pros and connect
you with one that meets your needs today.
Tien Nguyen License info
Inactive License
| License # | 625430 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| 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 Tien Nguyen 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 Tien Nguyen, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
36
Permits
- Building permit records show that Tien Nguyen has worked on 36 permitted projects.
Tien Nguyen Employees
TN
Tien Nguyen
Sole Owner