Updated: Jul 06, 2026
Location and Projects
Address
13642 STATE RD E, De Soto, MO, 63020
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Dtp Services Plumber
Dtp Services LLC, 13642 State Rd E, Desoto, MO (Owned by: Andrew Duffner) holds a Plumber license and 1 other license according to the St Louis County license board.
Their BuildZoom score of 107 ranks in the top 6% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Dtp Services LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Dtp Services LLC Services
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Dtp Services LLC Contact Information
Phone Number: (314) 609-8574
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Address: 13642 STATE RD E, Desoto, MO 63020
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Dtp Services LLC Desoto
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Dtp Services LLC has a BuildZoom score of 107, which places them above 94% of 23,328 contractors in Missouri.
Activity
|
22 projects
|
2025 |
|
16 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Dtp Services LLC has worked on at least
39.0 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
|
3 projects
|
Home Additions |
|
33 projects
|
Plumbing projects |
|
3 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Dtp Services LLC mostly works on
plumbing project
and sewer lateral
projects.
Pricing
|
29 projects
|
< $5k |
|
2 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
The typical size of their permits is approximately $2,000. 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.
Integrity auto detail-plan review building #24bld-09022 has been approved obtaining a commercial plumbing permit for referenced building permit number as listed existing two bathrooms to remain. rework one bathroom to be ada compliant for customer use addition oil interceptor as required per drawings
Valuation:
$25,000
Permit #:
25PLU-00744
Status:
complete
Fee:
$251
Permit Type:
Alteration
Building Type:
N/A
Per incident report#25nps-03748 on failed occupancy inspection report fix plumbing code violations as required. properly vent sump discharge to the exterior of the home. cap off current sump inlet piping to waste stack. cap off obsolete pipes inside and outside of home
Valuation:
$1,850
Permit #:
25PLU-17119
Status:
complete
Fee:
$85
Permit Type:
Alteration
Building Type:
N/A
Fix plumbing violations listed in failed occupancy inspection report incident report#25nps-03318. replace vanity top re-use faucet in master bathroom. properly replace kitchen sink piping as required. in basement transition piping per code. obtain plumbing permit
Valuation:
$1,500
Permit #:
25PLU-10515
Status:
complete
Fee:
$91
Permit Type:
Repair
Building Type:
N/A
Obtain plumbing permit to comply with occupancy report. incident #25nps-02010 per report fix plumbing as required 1-hall bathroom lavatory 1-kitchen sink piping 1-lavatory in basement 1-service/utility sink in basement
Valuation:
$1,500
Permit #:
25PLU-07102
Status:
complete
Fee:
$103
Permit Type:
Repair
Building Type:
N/A
Obtain plumbing permit for occupancy violations report incident#25nps-02491 fix plumbing code violations as required. properly permit water heater kitchen sink disposal arrangement and lavatory piping on second floor
Valuation:
$1,500
Permit #:
25PLU-08931
Status:
complete
Fee:
$103
Permit Type:
Replacement
Building Type:
N/A
Replace existing waste stack and prepare for new finishes. note this is a one-bathroom home so waste stack will be active so the homeowner will have a working water closet. upgrading from existing cast iron and lead drainage lines to pvc in accordance with code
Valuation:
$3,500
Permit #:
24PLU-22865
Status:
complete
Fee:
$144
Permit Type:
Replacement
Building Type:
N/A
***plumbing review will be done under 24bld-07749. once plumbing review is completed under 24bld-07749 resubmit without plans referencing that building number in the work description.***currently 2- existing bathrooms existing in space. new tennant requesting new obligations convert 1- existing bathroom to an ada bathroom for public usage. 1- to remain as is for employee use addition ... see more
Valuation:
$24,850
Permit #:
24PLU-17997
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Homeowner no longer uses his lawn irrigation system. cap off water service line serving backflow inside residence and remove backflow cap water line outside underneath yard elevation
Valuation:
$450
Permit #:
25PLU-13676
Status:
complete
Fee:
$79
Permit Type:
Alteration
Building Type:
N/A
Integrity auto detail-furnish and install backflow preventer for pressure washer with soap injection. serial#452268
Valuation:
$1,000
Permit #:
25PLU-02169
Status:
complete
Fee:
$79
Permit Type:
Interior finish
Building Type:
N/A
Locoz tacoz taqueria llc new tenant in existing building which used to serve as a food establishment. rework existing plumbing per drawings as required and revised per st. louis health department comments on 09.13.2024
Valuation:
$19,000
Permit #:
24PLU-17809
Status:
issued
Fee:
$198
Permit Type:
Alteration
Building Type:
N/A
Replace existing 40-gallon natural gas hot water heater with a new unit bring up to current code
Valuation:
$850
Permit #:
25PLU-00019
Status:
complete
Fee:
$47
Permit Type:
Replacement
Building Type:
N/A
Basement finish ballwin permit# 24-9b-b rough-in and finish plumbing for basement 3/4 bathroom 1- water closet 1-shower 1-lavatory 1-existing floor drain replacement 1-clothes washer
Valuation:
$4,250
Permit #:
24PLU-08878
Status:
complete
Fee:
$156
Permit Type:
Alteration
Building Type:
N/A
Furnish and install 50-gallon natural gas water heater bring to current code
Valuation:
$2,000
Permit #:
25PLU-01113
Status:
complete
Fee:
$47
Permit Type:
Replacement
Building Type:
N/A
Replace existing backflow rpz 3/4 conbraco serial#b2448 addition water hammer arrester and test new device. new backflow is a febco 825y 3/4 serial# j133914 rp
Valuation:
$700
Permit #:
24PLU-21948
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Provide a washer stand pipe in basement currently washing machine discharges into floor drain in basement of residence
Valuation:
$1,500
Permit #:
25PLU-13331
Status:
complete
Fee:
$79
Permit Type:
Alteration
Building Type:
N/A
Replace existing natural gas water heater with a 50-gallon natural gas water heater in accordance with code
Valuation:
$1,950
Permit #:
25PLU-17216
Status:
complete
Fee:
$47
Permit Type:
Replacement
Building Type:
N/A
(wyw) remodel existing basement bathroom
Valuation:
$28,000
Permit #:
25BLD-01002
Status:
complete
Fee:
$282
Permit Type:
Alteration
Building Type:
N/A
Homeowner requesting a clothes washer connection in basement of residence. connect to existing drainage stack and vent per code
Valuation:
$2,400
Permit #:
24PLU-12868
Status:
complete
Fee:
$87
Permit Type:
Alteration
Building Type:
N/A
Incident #24nps-03286 fix code violations per the report. pull stl county permit fix venting and garbage disposal per report
Valuation:
$2,500
Permit #:
24PLU-11997
Status:
complete
Fee:
$85
Permit Type:
Alteration
Building Type:
N/A
Water heater replacement furnish and install a new 40-gallon natural gas water heater
Valuation:
$2,000
Permit #:
25PLU-11905
Status:
complete
Fee:
$47
Permit Type:
Replacement
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Dtp Services LLC License info
Verified License
| License # | P003586 |
| Status | Active |
| County | St Louis County |
| Type | Plumber |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Dtp Services LLC 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 # | PLC3613809 |
| Status | Active |
| City | University City |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of July, 2025. Check the current license status of Dtp Services LLC with the City of University City
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
39
Permits
- Building permit records show that Dtp Services LLC has worked on 39 permitted projects.
Dtp Services LLC Employees
AD
Andrew C Duffner
AD
Andrew Duffner
Owner
These guys saved the day! I had a plumbing emergency at my home and they got to it right away. Ian stayed at my house until after 9 PM that night to ensure the issue was fixed. Prompt service and amazing follow up afterwards. The best of the best!