Updated: Jun 04, 2026
Location and Projects
Address
11642 KNOTT ST SUITE E-1, Garden Grove, CA, 92841
Use our bidding system to
request a quote
Contech Construction Plumber
Contech Construction, 11642 Knott St, Garden Grove, CA (Owned by: Yeo Jin Yoon) holds a General Building license according to the California license board.
Their BuildZoom score of 103 ranks in the top 10% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Contech Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Contech Construction Services
Start a project today:
Contech Construction Contact Information
Phone Number: (714) 462-7734
Edit
Address: 11642 KNOTT ST SUITE E-1, Garden Grove, CA 92841
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Contech Construction Garden Grove
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Contech Construction has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
3 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Contech Construction has worked on at least
7.0 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
|
5 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Contech Construction mostly works on
plumbing project
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$20k-$50k |
|
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Combo residential – building – alteration (includes meps)
2024-08-27
Non-structural remodel of (3) bathroom no walls to be removed like for like includes related plumbing and mechanical (1) bathtub (2) showers and (1) exhaust fan remove/replace (n) drywall and r30 insulation 100 sqft ***subject to field inspection***
Valuation:
$28,000
Permit #:
COMR-2024-0389
Status:
complete
Fee:
$1,499
Permit Type:
N/A
Building Type:
N/A
Before any work is to begin contractor must schedule a preconstruction meeting with the water inspector for all parts and location approval. * upon completion of the preconstruction meeting additional work/parts may need to be added to the permit per water inspector’s evaluation of existing meter assembly. install a 1 rp backflow assembly concrete pad and cage per city standard 604 an... see more
Valuation:
N/A
Permit #:
WAT-2023-0031
Status:
complete
Fee:
$858
Permit Type:
N/A
Building Type:
N/A
Per health department please submit changes to the city - changes to finishes equipment installation equipment specs dry food back-up storage locker hand sink lighting mechanical/venitlation vermin exclusion water heater upgrade
Valuation:
N/A
Permit #:
BLD-2024-00405
Status:
complete
Fee:
$97
Permit Type:
N/A
Building Type:
N/A
Replace (4) sinks total and upgrade hallway shower only no electrical or mechanical1-14-25 - edited. removed include all meps".â
Valuation:
N/A
Permit #:
B-25-54
Status:
issued
Fee:
$117
Permit Type:
N/A
Building Type:
N/A
Remodel existing bathrooms replace 3 sinks 2 toilets 1 shower stall 1 bathtub and 2 lights. no structural work to be completed
Valuation:
N/A
Permit #:
BLDG25-0345
Status:
final
Fee:
N/A
Permit Type:
Alteration repair
Building Type:
N/A
Remove & replace sidewalk per city standard 122 joint to joint or per inspector's determination of limits to install a new backflow assembly
Valuation:
N/A
Permit #:
ENG-2023-0232
Status:
complete
Fee:
$322
Permit Type:
N/A
Building Type:
N/A
Tenant improvement
Valuation:
$328,740
Permit #:
00854156-SBPT
Status:
final
Fee:
$2,681
Permit Type:
N/A
Building Type:
N/A
1. new 3 comparable sink 2. new mop sink 3. new hand sink 4. 2 new 220v outlets 5. new coffee roaster equipment that may need a vent
Valuation:
N/A
Permit #:
BLD-2023-01511
Status:
final
Fee:
$2,136
Permit Type:
N/A
Building Type:
N/A
Tenant improvmt tenant improvement: t-bar ceiling - lighting mechanical accessible ramp (2) new windows. size = 3, 390 sq ft
Valuation:
$100,000
Permit #:
B19-000-941
Status:
final
Fee:
$2,534
Permit Type:
B business
Building Type:
N/A
Revision to floor layout and structural details ref: bldc-2023-0049 as per approved plans
Valuation:
$0
Permit #:
MIS-2024-0124
Status:
issued
Fee:
$357
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for interior walls and electrical for restaurant
Valuation:
$15,773
Permit #:
B19-1127
Status:
final
Fee:
$1,610
Permit Type:
N/A
Building Type:
N/A
Tenant improvement
Valuation:
$113,847
Permit #:
00828383-SBPT
Status:
final
Fee:
$1,082
Permit Type:
N/A
Building Type:
N/A
(e-plan) temp occupancy ok per julius deocampo (06/25/21-07/25/21)
Valuation:
N/A
Permit #:
00845561-TO
Status:
issued
Fee:
$356
Permit Type:
N/A
Building Type:
N/A
Replace 14 doors and show seat layout (sister music town club karaoke)
Valuation:
$8,000
Permit #:
B-20-982
Status:
issued
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
(e-plan) interior restaurant demolish
Valuation:
N/A
Permit #:
00851364-DUM
Status:
expired
Fee:
$262
Permit Type:
N/A
Building Type:
N/A
Retail tenant improvement wit roof top unit. tenant : jw lim. 8.10.21 - approved & issued rev 1 was to change address. changed from 4800 irvine blvd #19 to 4790 irvine blvd #101. mm
Valuation:
N/A
Permit #:
00840441-SBPT
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - suite a
Valuation:
$122,949
Permit #:
00887378-SBPT
Status:
final
Fee:
$1,005
Permit Type:
N/A
Building Type:
N/A
Adding 6 new non- ada cashierâ´s window and 1 ada casierâ´s window totaling approximately 514 sf.
Valuation:
$308,400
Permit #:
NR070033
Status:
Closed-Withdrawn
Fee:
$7,864
Permit Type:
N/A
Building Type:
N/A
(e-plan) interior demolish. tenant: little luxe-9
Valuation:
N/A
Permit #:
00837472-DUM
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Adding 6 new non- ada cashierâ´s window and 1 ada casierâ´s window
Valuation:
$0
Permit #:
EL070101
Status:
Closed-Withdrawn
Fee:
$315
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
132
BZ Score
$1.3K
Avg Project
-
Projects
138
BZ Score
$9K
Avg Project
-
Projects
134
BZ Score
$31.2K
Avg Project
-
Projects
Contech Construction Reviews
BuildZoom hasn't received any reviews for Contech Construction. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Let us find you a plumber in your area today
We'll search our vast network of Plumbers and connect
you with one that meets your needs today.
Verified License
BuildZoom confirmed this contractor's license
Contech Construction License info
Verified License
| License # | 1018602 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Contech Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
Bonded
| Bonded Agent | Western National Mutual Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
15
Permits
- Building permit records show that Contech Construction has worked on 15 permitted projects.
Contech Construction Employees
YY
Yeo Jin Yoon
Owner