Updated: Jul 10, 2026
Location and Projects
Address
P O Box 20109, St Louis, MO, 63123
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JR Plumbing Company Joseph Sinak
JR Plumbing Company Joseph Sinak, St, Po Box 20109, St Louis, MO (Owned by: Sinak Plumbing Inc. Thomas Sin) holds a Plumber license and 18 other licenses according to the St Louis County license board.
Their BuildZoom score of 109 ranks in the top 5% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring JR Plumbing Company Joseph Sinak, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
JR Plumbing Company Joseph Sinak Services
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JR Plumbing Company Joseph Sinak Contact Information
Phone Number: (314) 607-2001
Address: P O Box 20109, St Louis, MO 63123
JR Plumbing Company Joseph Sinak St Louis
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
JR Plumbing Company Joseph Sinak has a BuildZoom score of 109, which places them above 95% of 23,328 contractors in Missouri.
Activity
|
2 projects
|
2026 |
|
100 projects
|
2025 |
|
109 projects
|
2024 |
|
88 projects
|
2023 |
Our building permit records indicate that JR Plumbing Company Joseph Sinak has worked on at least
299.0 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
|
19 projects
|
Home Additions |
|
8 projects
|
New Constructions |
|
3 projects
|
Commercial Renovations |
|
288 projects
|
Plumbing projects |
|
6 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that JR Plumbing Company Joseph Sinak mostly works on
plumbing project
and home addition
projects.
Pricing
|
203 projects
|
< $5k |
|
55 projects
|
$5k-$20k |
|
20 projects
|
$20k-$50k |
|
9 projects
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $2,600. 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.
Building Permits by JR Plumbing Company Joseph Sinak
This is a sample of this contractor's permits. Click here to access their complete permit history.
General construction @2000 sq ft -frame out surrounding walls in 2x4 studs 2 bedrooms 2 offices 1 full bathroom 1 storage area 1 utility room 1 main living area and wet bar -closest in both bedrooms -fireblock all areas per code specification -cut in and install access panels for all shutoffs where necessary -install vapor barrier along all exterior concrete walls -install r13 insulat... see more
Valuation:
$124,780
Permit #:
25BLD-04288
Status:
issued
Fee:
$629
Permit Type:
Interior finish
Building Type:
N/A
Building residential existing building (integrated/non-integrated)
2025-10-03
Wyw - kitchen remodel
Valuation:
$20,000
Permit #:
25BLD-07862
Status:
issued
Fee:
$258
Permit Type:
Replacement
Building Type:
N/A
We are finishing the basement and adding a bathroom. we are updating the electric panel. we are remodeling the two existing bathrooms on the main level. we are remodeling the existing kitchen on the main level
Valuation:
$200,000
Permit #:
24BLD-07310
Status:
complete
Fee:
$928
Permit Type:
Interior finish
Building Type:
N/A
***we need to know the footage and if this is a part of msd approval. if this is part of msd we will need the msd number. if not please state this in the description of work.***pick up the building sewer lateral in the ballfield and trench for sink and floor drain to be added in the prep area concession stand. will apply for a separate plumbing permit richmond heights building permit ... see more
Valuation:
$13,600
Permit #:
25DRN-01816
Status:
canceled
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Replace cast iron under basement floor replacement of laundry standpipe and floor drain. replace kitchen stack. basement bathroom rough in no building scope required
Valuation:
$15,400
Permit #:
25PLU-02631
Status:
complete
Fee:
$197
Permit Type:
Replacement
Building Type:
N/A
The basement is currently unfinished. we will be adding a full bathroom with a walk-in closet. all walls and ceiling will be drywalled in that area. there will be a large living area with finished dry wall on walls and the ceiling will be open to the floor joist. we will be adding electrical outlets to code and lighting fixtures
Valuation:
$35,000
Permit #:
24BLD-00456
Status:
complete
Fee:
$251
Permit Type:
Interior finish
Building Type:
N/A
Building residential existing building (integrated/non-integrated)
2025-10-14
Master and hall bathroom remodels
Valuation:
$30,222
Permit #:
25BLD-08130
Status:
issued
Fee:
$241
Permit Type:
Interior finish
Building Type:
N/A
Bathroom remodel - demo/removal- remove tile floors and backer down to subfloor -remove tub -remove shower walls -remove vanity -remove toilet -remove all fixtures -remove tile on lower section of wall around entire room -hall away all debris tile shower walls-install hardi backer on walls to be tiled -waterproof the backerboard and seam together -install selected wall tile @77 sq ft ... see more
Valuation:
$21,315
Permit #:
24BLD-06416
Status:
complete
Fee:
$208
Permit Type:
Interior finish
Building Type:
N/A
Master bathroom remodel 7'x5 demo/removal; -remove tile floors mosaics concrete floor slab requires extra grinding to get to workable surface. -remove cast iron tub(very heavy) -remove tile shower walls -remove tile on lower half of walls -remove vanity -remove toilet remove all fixtures -remove drywall as needed for repairs -hall away all debris -tile shower walls; -install hardi bac... see more
Valuation:
$16,390
Permit #:
24BLD-06099
Status:
complete
Fee:
$200
Permit Type:
Interior finish
Building Type:
N/A
Bathroom remodel - demolish remove vanity top mirror lights -remove shower valve head tub spout (to be reinstalled) -remove tile tub surround and drywall -remove wall tile on lower 4 of walls -remove floor tile -remove toilet (to be reinstalled) install -install hardi board on walls in tub -install and grout wall tiles above tub 33x60x 72"tall. -install new vanity -install new mirror ... see more
Valuation:
$9,970
Permit #:
24BLD-06417
Status:
complete
Fee:
$181
Permit Type:
Other
Building Type:
N/A
(accelerated plan review) description kitchen bid complete kitchen remodel; demo; -demo entire kitchen and haul away all debris cabinets/backsplash install; -@33 linear ft of cabinet -full install of all items - 24 shaker base cabinets pullouts in all without drawers -39 tall upper cabinets with crown -pantry cabinet next to fridge to have glass door uppers -bar cabinet next to mini f... see more
Valuation:
$32,018
Permit #:
23BLD-04267
Status:
canceled
Fee:
N/A
Permit Type:
Alteration for th...
Building Type:
N/A
Aster bathroom remodel demo/removal; -remove tub and surrounding tile -remove tile shower stall and door -remove vanity’s mirrors lights -hall away all debris shower; 36"×56"x7.5 tall @ 72 sq ft. -install hardi backer on walls behind tile -apply aqua defense on walls for reinforced water barrier beneath tile -install tile walls -buildout shower cubbies -build out half wall -buildout s... see more
Valuation:
$24,069
Permit #:
23BLD-04212
Status:
complete
Fee:
$217
Permit Type:
Alteration for th...
Building Type:
N/A
Gut the room drywall tape and mud. remove and replace the vanity and toilet keeping the configurations the same: change the valve and fixtures
Valuation:
$14,736
Permit #:
24BLD-09840
Status:
complete
Fee:
$193
Permit Type:
Replacement
Building Type:
N/A
No building scope. vent basement bathroom to code. rework plumbing for toilet and lav. water heater up to code and replacement of faucet and trap
Valuation:
$4,400
Permit #:
25PLU-01941
Status:
complete
Fee:
$150
Permit Type:
Replacement
Building Type:
N/A
Gut room drywall tape and mud. tub to shower conversion plumbing and electrical to install washer and dryer on left side of the room
Valuation:
$17,959
Permit #:
25BLD-00618
Status:
complete
Fee:
$200
Permit Type:
Replacement
Building Type:
N/A
Bathroom -gut walls down to studs -remove open chase section to extend shower -remove soffit -remove ceiling drywall -remove floor tile down to subfloor -remove all fixtures -remove shower floor and surround -remove bathroom door and frame -haul everything away install-install and finish greenboard drywall on walls and ceiling -install hardy backer 42 up wall base -install and grout w... see more
Valuation:
$48,000
Permit #:
23BLD-01527
Status:
complete
Fee:
$309
Permit Type:
Interior finish
Building Type:
N/A
Occupancy inspection repairs. replacement section of stack in basement. take up toilet for bend replacement to correct length
Valuation:
$2,500
Permit #:
25PLU-07831
Status:
complete
Fee:
$85
Permit Type:
Occupancy
Building Type:
N/A
Remodel kitchen and master bathroom and basement finish. fire separation between the house and the garage
Valuation:
$35,000
Permit #:
25BLD-00258
Status:
complete
Fee:
$251
Permit Type:
Occupancy
Building Type:
N/A
2nd floor addition
Valuation:
$384,000
Permit #:
24BLD-09828
Status:
issued
Fee:
$1,686
Permit Type:
Addition
Building Type:
N/A
(accelerated plan review) description kitchen bid complete kitchen remodel; demo; -demo entire kitchen and haul away all debris cabinets/backsplash install; -@33 linear ft of cabinet -full install of all items - 24 shaker base cabinets pullouts in all without drawers -39 tall upper cabinets with crown -pantry cabinet next to fridge to have glass door uppers -bar cabinet next to mini f... see more
Valuation:
$28,408
Permit #:
23BLD-04570
Status:
complete
Fee:
$732
Permit Type:
Interior finish
Building Type:
N/A
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JR Plumbing Company Joseph Sinak License info
Verified License
| License # | P9209 |
| Status | Active |
| County | St Louis County |
| Type | Plumber |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for JR Plumbing Company Joseph Sinak at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | D8735 |
| Status | Active |
| County | St Louis County |
| Type | Drainlayer |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for JR Plumbing Company Joseph Sinak 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 # | PLC2301860 |
| Status | Active |
| City | University City |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of JR Plumbing Company Joseph Sinak with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PLC2084980 |
| Status | Active |
| City | University City |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2025. Check the current license status of JR Plumbing Company Joseph Sinak with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PLC9114144 |
| Status | Active |
| City | University City |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of JR Plumbing Company Joseph Sinak 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 |
| City | Dardenne Prairie |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of JR Plumbing Company Joseph Sinak with the City of Dardenne Prairie
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Dardenne Prairie |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of JR Plumbing Company Joseph Sinak with the City of Dardenne Prairie
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 JR Plumbing Company Joseph Sinak 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
| License # | GEN8031453 |
| Status | Active |
| City | University City |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of April, 2020. Check the current license status of JR Plumbing Company Joseph Sinak 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 JR Plumbing Company Joseph Sinak 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 JR Plumbing Company Joseph Sinak 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 | Drainlayer |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of JR Plumbing Company Joseph Sinak 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 | Drainlayer |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of JR Plumbing Company Joseph Sinak 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 JR Plumbing Company Joseph Sinak 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 |
| City | Town And Country |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of JR Plumbing Company Joseph Sinak with the City of Town and Country
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | S3612 |
| Status | Inactive |
| County | St Louis County |
| Type | Structural |
- According to the Saint Louis County Department of Public Works, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for JR Plumbing Company Joseph Sinak at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | GEN8276183 |
| Status | Inactive |
| City | University City |
| Type | General Contractor |
- According to the City of University City, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for JR Plumbing Company Joseph Sinak at the City of University City.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St Louis County |
| Type | Plumber |
- According to the Saint Louis County Department of Public Works, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P056 |
| Status | Inactive |
| County | Jefferson County |
| Type | Plumbing Contractor |
- According to the Jefferson County Building Division, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for JR Plumbing Company Joseph Sinak at the Jefferson County Building Division.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
2.5K
Permits
- Building permit records show that JR Plumbing Company Joseph Sinak has worked on 2461 permitted projects.
JR Plumbing Company Joseph Sinak Employees
JS
J R Plumbing Company Joseph Si
Owner
JS
Joseph Sinek
Owner
RH
Robert Hentz
Owner
RS
Robert J Sinak
Owner
SS
Sinak Plumbing Inc. Thomas Sin
Owner