Updated: May 26, 2026
Location and Projects
Address
9428 Lackland Rd, Overland, MO, 63114
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Flowmasters Plumber
Flowmasters, 9428 Lackland Rd, Overland, MO (Owned by: Jackson Michael S. Ii.) holds a Drainlayer license and 11 other licenses according to the St Louis County license board.
Their BuildZoom score of 111 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 Flowmasters, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Flowmasters Services
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Flowmasters Contact Information
Phone Number: (314) 733-0334
Address: 9428 Lackland Rd, Overland, MO 63114
Flowmasters Overland
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Flowmasters has a BuildZoom score of 111, which places them above 96% of 23,328 contractors in Missouri.
Activity
|
48 projects
|
2025 |
|
41 projects
|
2024 |
|
59 projects
|
2023 |
Our building permit records indicate that Flowmasters has worked on at least
148.0 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
|
11 projects
|
Home Additions |
|
7 projects
|
New Constructions |
|
143 projects
|
Plumbing projects |
|
38 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Flowmasters mostly works on
plumbing project
and sewer lateral
projects.
Pricing
|
91 projects
|
< $5k |
|
38 projects
|
$5k-$20k |
|
8 projects
|
$20k-$50k |
|
5 projects
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $3,550. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Customer 2nd floor hall bathroom remodel remove and replace all fixtures no walls being removed fireblock and bring up to new codes replace 15 amp circuit to 20 amp gfi outlet replace bathroom fan and light bring all electric up to new codes plumbing replace tub and faucet replace toilet and vanity
Valuation:
$9,000
Permit #:
25BLD-00437
Status:
complete
Fee:
$178
Permit Type:
Replacement
Building Type:
N/A
Spot repair no less than 10 feet to include up to 15 feet with work starting 14 feet from the base of the cleanout and progressing downstream towards the msd man. street work required. replace all piping under disturbed areas of pavement
Valuation:
$7,000
Permit #:
25DRN-00560
Status:
complete
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
The work consists primarily of: replacement of the water service from the outlet side of the meter pit to the foundation. walkway repair may be required. replace all piping under disturbed areas of pavement
Valuation:
$4,321
Permit #:
25PLU-04712
Status:
complete
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
Salthouse smiles-25bld-06025-2 water closets 2 lavatories 4 floor drains 1 floor sink 2 hub drains 4 dental equipment 1 mop sink 1 washing machine box 2 lab sinks 1 break room sink 1 ice maker box 1 electric water heater(50 gallons) new dental office
Valuation:
$12,000
Permit #:
25PLU-17301
Status:
issued
Fee:
$287
Permit Type:
New construction
Building Type:
N/A
1st spot repair of 5 feet to include up to 10 feet with work starting at approximately at the foundation and progressing downstream towards the msd main. install a new cleanout 2nd spot repair of 10 feet to include up to 15 feet with work starting approximately 55 feet from the foundation and progressing downstream towards the msd main concrete street work is involved please repair al... see more
Valuation:
$5,000
Permit #:
24DRN-01225
Status:
complete
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
1st spot repair of 5 feet to include up to 10 feet with work starting at approximately 10 feet from the foundation and progressing downstream towards the msd main. install a cleanout. 2nd spot repair of 5 feet to include up to 10 feet with work starting at approximately 68 feet from the foundation and progressing downstream towards the msd main
Valuation:
$5,600
Permit #:
24DRN-00179
Status:
complete
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
Replace all piping under disturbed areas of pavement. county department of transportation permit required remainder of the sewer lateral shall be cabled until clean and then camera remainder of line to verify no further defects are present during excavation. contractor is responsible to verify all site conditions sewer lateral location including depth and utility location(s) prior to ... see more
Valuation:
$4,000
Permit #:
24DRN-01061
Status:
complete
Fee:
$126
Permit Type:
Replacement
Building Type:
N/A
Drainlaying residential sewer lateral program
2024-02-06
1st spot repair of no less than 5 feet to include up to 10 feet with work starting at the transition and progressing downstream towards the msd main. 2nd spot repair of no less than 5 feet to include up to 10 feet with work starting 45 feet from the base of the stack and progressing downstream towards the msd main. install a clean out
Valuation:
$4,100
Permit #:
24DRN-00180
Status:
complete
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
Building residential existing building
2024-03-21
Master bathroom update. shower toilet and vanities updated but remaining in same location. re arranging existing recessed lights and adding 4 new. new tile floor and shower. existing bathroom tub to be capped off and not replaced
Valuation:
$30,000
Permit #:
24BLD-01767
Status:
complete
Fee:
$232
Permit Type:
Alteration
Building Type:
N/A
New addition and kitchen renovation per plans
Valuation:
$200,000
Permit #:
24BLD-08637
Status:
issued
Fee:
$928
Permit Type:
Addition
Building Type:
N/A
Replacement of the water service from the tee head to the foundation. repair is to include a new tee head as it is located out of the right-of-way. contractor is responsible to verify site conditions water service location and utility location(s). contractor shall include these conditions and considerations in the bid proposal
Valuation:
$2,300
Permit #:
23PLU-04324
Status:
complete
Fee:
$126
Permit Type:
Replacement
Building Type:
N/A
***this permits fixture count and the building permit 25bld-06025 fixtures do not macth. the following is what was reviewerd under permit 25bld-06025-2 water closets 2 lavatories 4 floor drains 1 floor sink 2 hub drains 4 dental equipment 1 mop sink 1 washing machine box 2 lab sinks 1 break room sink 1 ice maker box 1 electric water heater(50 gallons). please resubmit with the correct... see more
Valuation:
$15,000
Permit #:
25PLU-17160
Status:
canceled
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
The work consists primarily of: replacement of the water service from the outlet side of the meter pit to the foundation
Valuation:
$4,300
Permit #:
25PLU-04785
Status:
complete
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
***please resubmit with the current or future tenant for this space. if you are doing this on behalf of the property owner please say so in the tenant space provided. we can't issue a permit till a tenant is given thank you!!***add 4 hand sink and a floor drain for mechanical room
Valuation:
$6,000
Permit #:
23PLU-12541
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Spot repair no less than 10 feet to include up to 15 feet with work 8 feet from the foundation and progressing downstream towards the msd main. install cleanout
Valuation:
$3,800
Permit #:
25DRN-01276
Status:
issued
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
Spot repair of no less than 10 feet to include up to 15 feet with work starting approximately 71 feet from the foundation and progressing downstream towards the msd main. street work involved. replace all piping under disturbed areas of pavement
Valuation:
$5,100
Permit #:
23DRN-01993
Status:
complete
Fee:
$126
Permit Type:
Repair
Building Type:
N/A
***please resubmit with the current or future tenant for this space. if you are doing this on behalf of the property owner please say so in the tenant space provided. we can't issue a permit till a tenant is given thank you!!***install half inch rpz for vacuum pump
Valuation:
$1,500
Permit #:
23PLU-12545
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Kitchen remodel w removal of wall between kitchen and living room
Valuation:
$18,000
Permit #:
25BLD-03748
Status:
issued
Fee:
$200
Permit Type:
Replacement
Building Type:
N/A
Spot repair with work starting 20 feet from the base of the cleanout and progressing downstream to the msd main. replace wye connection if necessary
Valuation:
$7,400
Permit #:
25DRN-01344
Status:
complete
Fee:
$126
Permit Type:
Replacement
Building Type:
N/A
***this permit has the wrong record type should be residential not multi family. this is in unincorporated st louis county and may be covered by the sewer lateral repair program. this is also a duplicate of 25drn-01274 which has also been voided.***spot repair with work starting 20 feet from the base of the cleanout and progressing downstream to the msd main. replace wye connection if... see more
Valuation:
$7,000
Permit #:
25DRN-01275
Status:
canceled
Fee:
N/A
Permit Type:
Repair
Building Type:
N/A
Flowmasters Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Flowmasters License info
Verified License
| License # | D7191 |
| Status | Active |
| County | St Louis County |
| Type | Drainlayer |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Flowmasters 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
| Status | Active |
| County | St. Charles County |
| Type | On Site Wastewater Treatment System Installer |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| County | St. Charles County |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PLC2469147 |
| 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 Flowmasters 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 Flowmasters 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 Flowmasters 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 Flowmasters 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 Flowmasters with the City of Town and Country
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P7191 |
| 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.
Check this license's status for Flowmasters 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 # | DRL9597347 |
| Status | Inactive |
| City | University City |
| Type | Drainlaying 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 Flowmasters 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. Charles County |
| Type | On Site Sewage Disposal Contractor |
- According to the St. Charles County Department of Development & Business Services, 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 # | P354 |
| 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 Flowmasters at the Jefferson County Building Division.
This is a sample of licensing data; click here to access a complete history.
111
BuildZoom Score
737
Permits
- Building permit records show that Flowmasters has worked on 737 permitted projects.
Flowmasters Employees
JI
Jackson Michael S. Ii.
Owner
JG
Jill Garcia
Office Manager
MI
Michael S. Jackson Ii
Owner