Location and Projects
Address
247 Crystal Ln, Pasadena, CA, 91103
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T K Engineering Co
T K Engineering Co, 247 Crystal Ln, Pasadena, CA (Owned by: Taehun Kang) holds a General Engineering, General Building, Electrical license according to the California license board.
Their BuildZoom score of 89 does not rank in the top 50% of California contractors.
Their license was verified as active when we last checked. If you are thinking of hiring T K Engineering Co, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
T K Engineering Co Services
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T K Engineering Co Contact Information
Phone Number: (213) 435-9791
Address: 247 Crystal Ln, Pasadena, CA 91103
T K Engineering Co Pasadena
Quality
89
30th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
T K Engineering Co has a BuildZoom score of 89, which places them above 30% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
2 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that T K Engineering Co has worked on at least
5.0 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
|
$50k-$100k |
|
1 project
|
$100k-$250k |
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.
T K Engineering Co Reviews
1 out of 5 stars, based on
1
review
-
By Ann Q.March 19, 20173 Bathrooms, replace wood floor, remodel a kitchen, add an additional room, make a sidewalk on the s$131,00072 days
This is a sample of this contractor's permits. Click here to access their complete permit history.
Permit to complete work started on b22-0369/b24-1183 tenant improvement. for units 108 and 110 - (2) new bathroom (2) new t- bar and lights (2) new floor finishes
Valuation:
$103,863
Permit #:
B25-0623
Status:
expired
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Tenan improvement for unit 105 and 106 for new bathroom new hvac unit new t-bar and lights new floor finishes. revision - revision related to b22-1111 for units 105 & 106 relocate bathrooms and remove demising wall between suites combining suites
Valuation:
$110,436
Permit #:
B22-1111
Status:
expired
Fee:
$9,873
Permit Type:
N/A
Building Type:
N/A
Permit to complete work started on b21-1005 tenant improvement to install demising wall to convert existing unit to 2 units (shell only)
Valuation:
$50,000
Permit #:
B23-0507
Status:
expired
Fee:
$389
Permit Type:
N/A
Building Type:
N/A
Permit to complete work started on b22-0369 tenant improvement. for units 108 and 110 - (2) new bathroom (2) new t- bar and lights (2) new floor finishes
Valuation:
$103,863
Permit #:
B24-1183
Status:
expired
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Convert existing building into (4) suites - #103 #104 #105 #106 partion walls (no e/m/p)
Valuation:
$158,424
Permit #:
B22-0684
Status:
final
Fee:
$6,733
Permit Type:
N/A
Building Type:
N/A
Tenant improvement to combine units 518 and 520 by creating new 6 x 7 opening in existing demising wall
Valuation:
$8,000
Permit #:
B22-1736
Status:
final
Fee:
$1,896
Permit Type:
N/A
Building Type:
N/A
Revision related to b22-1111 for units 105 & 106 relocate bathrooms and remove demising wall between suites combining suites
Valuation:
$5,000
Permit #:
B23-0524
Status:
final
Fee:
$1,431
Permit Type:
N/A
Building Type:
N/A
Addition new commercial freight lift
Valuation:
$75,000
Permit #:
B21-1278
Status:
expired
Fee:
$3,524
Permit Type:
N/A
Building Type:
N/A
Revision - changed non-load bearing wall detils from metal stud to wood stud related to b20-1026
Valuation:
N/A
Permit #:
B21-1103
Status:
final
Fee:
$262
Permit Type:
N/A
Building Type:
N/A
Adding (2) single use restroom in an existing vacant unit
Valuation:
$15,000
Permit #:
B24-1098
Status:
final
Fee:
$4,632
Permit Type:
N/A
Building Type:
N/A
Supplemental to permit# 18020-30000-02000 to revise structural detail for north and south retaining walls
Valuation:
N/A
Permit #:
18020-30001-02000
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Relocate washer and dryer to exterior with shed *carbon monoxide alarms/smoke alarms are required for this project per 2016 crc section r314/r315*
Valuation:
N/A
Permit #:
B18-0700
Status:
final
Fee:
$334
Permit Type:
N/A
Building Type:
N/A
Two (n) retaining wall
Valuation:
$50,000
Permit #:
18020-30000-02000
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace drywall/plaster (patch and paint). non-structural repair only. interior kitchen remodel/repair (no changes in walls or openings)
Valuation:
$8,901
Permit #:
22016-90000-22568
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Demolition of sfd. method of demolition will be by handwreck, sewer c
Valuation:
$2,000
Permit #:
16019-20000-04367
Status:
final
Fee:
N/A
Permit Type:
1 or 2 Family Dwe...
Building Type:
N/A
Demolish duplex. method of demolition will by handwreck. sewer cap and fe
Valuation:
$2,000
Permit #:
16019-20000-04365
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New slab for transformer vault ome-10 and service cable to service 3000 amp panel
Valuation:
$150,000
Permit #:
B22-1722
Status:
final
Fee:
$5,590
Permit Type:
N/A
Building Type:
N/A
***dpi and posting only*** demolition of the existing 1 story single family house and (2) duplex (three buildings)
Valuation:
N/A
Permit #:
16019-10000-03899
Status:
complete
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Demolition of (e) duplex and detached garage by handwreck method. sewer cap is required. clear and fence lot
Valuation:
$8,000
Permit #:
16019-10000-04086
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Demolish existing 1-story 30 x 60 brick retail building located at northeast corner of lot. handwrecking only. sewer cap permit required. also remove existing 5 x 5 parkking attendant booth and all misc. structures. clear lot. (sewer cap req'd.)
Valuation:
$0
Permit #:
98019-10000-01084
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
T K Engineering Co License info
Verified License
| License # | 973519 |
| Status | Active |
| State | California |
| Type | General Engineering, General Building, Electrical |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for T K Engineering Co at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
89
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
24
Permits
- Building permit records show that T K Engineering Co has worked on 24 permitted projects.
T K Engineering Co Employees
TK
Taehun Kang
Owner
I am extremely disappointed about the manner in which John Choi has dealt with the construction project that we agreed on. John Choi and I agreed on a contract on December 26, 2016. For the price John charged me for the construction ($131,000), I expected the highest quality materials to be installed along with excellent quality workmanship. Instead, I found low-cost materials installed which have not withstood this rainy season. John Choi and I agreed the following: 2 complete repaired bathrooms, new kitchen cabinets, create a kitchen island, repair and create a skylight, paint my home inside and out, add a door in my guestroom, add concrete on the side of my home to create a sidewalk, add a master bedroom closet, repair the chimney stucco, repair the entire home crown molding, add wood floor to my entire home which includes the hallways, in one of the bathrooms we agreed to change the counter top and shower tile. We also agreed on adding an additional master room, which later was brought to my attention by the city of Thousand Oaks, John Choi was building illegally.The sky light that he installed is leaking water, and to add insult to the injury, he has not answered either my phone calls or emails regarding this matter since Wednesday, February 22, 2017. I have found out John Choi is using someone else’s construction license number.I do not agree with his poor workmanship or his late deliveries. The projects John assigned were supposed to be done one at a time. Instead, he started multiple projects and completed none. And now that it is tax season, my employees and I are working in an extremely dusty, potentially dangerous, and messy environment which also my clients must endure. We still don’t have an architectural plan, engineering calculation, or permit for the illegal room addition that he was building. After, I received a stop notice from the City of Thousand Oaks, John left and I have not heard from him since February 22, 107. Now, I need to hire a new contractor to complete the projects John left incomplete. I will no longer continue living under these circumstances and plan on resolving this issue expeditiously. I have paid John $91,000.00 cash to date including the payment for the illegal room addition he built which is about $78,000. The complete project/contract was a total of $131,000. John required me to pay a minimum of $10,000 every Saturday. He only accepted cash and did not allow me to write a check payable to his so called 'TK Company'. He also had me write 2 checks (first for $20,000, and second check for $5,000) under his wife's name, KUM S. CHOI. Other weeks he required me to pay him between $15,000-$17,000. There were some weeks John did not work but would still charge me the $10,000 cash.