Updated: May 26, 2026
Location and Projects
Address
599 GRANDVIEW CIRCLE, Eureka, MO, 63025
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Kcj Plumbing Service Kenneth Janssen
Kcj Plumbing Service Kenneth Janssen, 599 Grandview Cir, Eureka, MO (Employees: Kenneth C Janssen and Kenneth C Janssen Jr) holds a Plumber license and 4 other licenses according to the St Louis County license board.
Their BuildZoom score of 110 ranks in the top 4% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Kcj Plumbing Service Kenneth Janssen, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Kcj Plumbing Service Kenneth Janssen Services
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Kcj Plumbing Service Kenneth Janssen Contact Information
Phone Number: (314) 229-9895
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Address: 599 GRANDVIEW CIRCLE, Eureka, MO 63025
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Kcj Plumbing Service Kenneth Janssen Eureka
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Kcj Plumbing Service Kenneth Janssen has a BuildZoom score of 110, which places them above 96% of 23,328 contractors in Missouri.
Activity
|
25 projects
|
2025 |
|
22 projects
|
2024 |
|
19 projects
|
2023 |
Our building permit records indicate that Kcj Plumbing Service Kenneth Janssen has worked on at least
66.0 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
|
9 projects
|
Home Additions |
|
63 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Kcj Plumbing Service Kenneth Janssen mostly works on
plumbing project
and home addition
projects.
Pricing
|
49 projects
|
< $5k |
|
9 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
The typical size of their permits is approximately $1,975. This graph shows the distribution of these job values.
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.
Kcj Plumbing Service Kenneth Janssen Reviews
5 out of 5 stars, based on
2
reviews
-
By Maryann C.December 14, 2021
-
By tjr5fJune 13, 2016Bathroom remodeling$4,0002 days
The work was done on time and on budget. Service was great. Ken was professional and accommodating.
Building Permits by Kcj Plumbing Service Kenneth Janssen
This is a sample of this contractor's permits. Click here to access their complete permit history.
Bath/laundry room remodel. electrical work under permit 25ele-14476
Valuation:
$8,500
Permit #:
25BLD-08202
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Correct code violation install vent for basement laundry repair pipe under kitcen sink repair pipe for master bathroom vanity sink reset toilet in powder room
Valuation:
$2,200
Permit #:
25PLU-07764
Status:
complete
Fee:
$91
Permit Type:
Miscellaneous work
Building Type:
N/A
(wyw) replace kitchen cabinets/countertop remove soffit above existing cabinets close window location for cabinet extension existing location of plumbing used move cooktop. additional ceiling lights under cabinet lighting gfi receptacles. master bathroom renovate including removal of existing fixtures and drywall. closet removed to accommodate larger shower. toilet tub sinks in the ge... see more
Valuation:
$80,000
Permit #:
23BLD-09038
Status:
complete
Fee:
$489
Permit Type:
Alteration
Building Type:
N/A
Replace main plumbing stack replace drain for toilet replace drain for vanity sink hook onto existing cast iron vent hook onto existing copper drain line in basement hook onto existing tub waste and overflow
Valuation:
$1,950
Permit #:
24PLU-21626
Status:
complete
Fee:
$97
Permit Type:
Replacement
Building Type:
N/A
Partial basement finish. applying for an integrated permit to finish approximately 900sq ft of basement. the finished space will include a game/craft area which is open to a recreation/family room area. the basement will also include a ½ bathroom which has existing rough-in plumbing. two utility areas will be walled off and left unfinished. the basement walls will be 2x4 construction ... see more
Valuation:
$26,000
Permit #:
22BLD-05367
Status:
complete
Fee:
$227
Permit Type:
Interior finish
Building Type:
N/A
Building residential existing building (integrated/non-integrated)
2025-08-18
Kitchen & hall bathroom remodel. (separated permit 25bld-05968 for master bath/bedroom remodel permit 25bld-06393 for basement finish)
Valuation:
$45,000
Permit #:
25BLD-06463
Status:
issued
Fee:
$346
Permit Type:
Replacement
Building Type:
N/A
(accelerated plan review) - paint - remove cabinets and replace with new keeping existing layout - new countertops - new flooring throughout - change out bathroom vanity faucets and kitchen faucet - new appliances
Valuation:
$15,000
Permit #:
24BLD-01311
Status:
complete
Fee:
$693
Permit Type:
Interior finish
Building Type:
N/A
Remodel master bathroom relocating walls for master bathroom and closet. kitchen remodel existing layout to remain. 2nd floor bathroom remodel existing layout to remain. basement bathroom replacing toilet and vanity. basement kitchen replacing countertops and sink cabinets to remain. new paint. flooring light fixtures
Valuation:
$50,000
Permit #:
23BLD-07850
Status:
complete
Fee:
$316
Permit Type:
Alteration
Building Type:
N/A
(qpr) rough in only for 1st floor laundry box drain and vent. to be finished at a later date. install laundry box drain waste and vent for 2nd floor. install safe pan on 2nd floor. rework kitchen sink drain for new sink
Valuation:
$7,200
Permit #:
PL23-000968
Status:
complete
Fee:
N/A
Permit Type:
Multi family addi...
Building Type:
N/A
Code corrections for occupancy permit replace flue on water heater replace loop vent with proper size loop vent for island sink make correct connections from abs to pvc replace slip nut tailpiece on master bathroom sink
Valuation:
$2,500
Permit #:
23PLU-14621
Status:
complete
Fee:
$79
Permit Type:
Repair
Building Type:
N/A
Replace main stack replace drain for toilet replace drain for vanity sink hook onto existing tub drain hook onto existing vents reset toilet reset vanity
Valuation:
$4,500
Permit #:
24PLU-19800
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replace main stack. replace drain lines for toilet tub and vanity sink in hall hath install tub and shower faucet
Valuation:
$4,500
Permit #:
25PLU-12858
Status:
complete
Fee:
$126
Permit Type:
Replacement
Building Type:
N/A
Code corrections on bar sink code corrections on kitchen sink drain
Valuation:
$500
Permit #:
25PLU-09487
Status:
complete
Fee:
$79
Permit Type:
Repair
Building Type:
N/A
After the fact permit. inspector came to inspect water heater on permit. found new toilets and vanities installed by handyman
Valuation:
$500
Permit #:
23PLU-10019
Status:
complete
Fee:
$115
Permit Type:
Replacement
Building Type:
N/A
Replace backflow assembly old sn 35967 new sn ala 85976
Valuation:
$1,200
Permit #:
25PLU-09847
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replace backflow assembly old sn ag5419 new sn ala 80746
Valuation:
$1,200
Permit #:
25PLU-08462
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Install 50 gallon water heater install expansion tank
Valuation:
$2,000
Permit #:
25PLU-07387
Status:
complete
Fee:
$47
Permit Type:
Replacement
Building Type:
N/A
Remove backflow replace with new backflow old sn bj3474 new device. zurn wilkens 975 xl3 sn ala 63839
Valuation:
$1,300
Permit #:
25PLU-09757
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Install 60 feet of 1 gad line to new pool heater
Valuation:
$4,500
Permit #:
25PLU-03886
Status:
complete
Fee:
$79
Permit Type:
Addition
Building Type:
N/A
Adding 1 bedroom with walk-in closet full bathroom utility closet and living area
Valuation:
$30,000
Permit #:
25BLD-00861
Status:
complete
Fee:
$232
Permit Type:
Interior finish
Building Type:
N/A
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Projects
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Verified License
BuildZoom confirmed this contractor's license
Kcj Plumbing Service Kenneth Janssen License info
Verified License
| License # | P8731 |
| Status | Active |
| County | St Louis County |
| Type | Plumber |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Kcj Plumbing Service Kenneth Janssen at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PLC4781646 |
| Status | Active |
| City | University City |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2023. Check the current license status of Kcj Plumbing Service Kenneth Janssen with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PLC5661240 |
| Status | Active |
| City | University City |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of May, 2020. Check the current license status of Kcj Plumbing Service Kenneth Janssen with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | St Louis County |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Kcj Plumbing Service Kenneth Janssen with the Saint Louis County Department of Public Works
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| County | St Louis County |
| Type | Plumbers |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Kcj Plumbing Service Kenneth Janssen with the Saint Louis County Department of Public Works
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
198
Permits
- Building permit records show that Kcj Plumbing Service Kenneth Janssen has worked on 198 permitted projects.
Kcj Plumbing Service Kenneth Janssen Employees
KJ
Kcj Plumbing Service Kenneth Janssen
Owner
KJ
Kenneth C Janssen
KJ
Kenneth C Janssen Jr
KJ
Kenneth Janssen Jr
Owner
Excellent professional plumbing. Installed a reverse osmosis system for my kitchen sink and my refrigerator water and ice supply.
I would recommend him with an A+ grade!!