Updated: Jul 07, 2026
Location and Projects
Address
P O BOX 106, San Marcos, TX, 78667
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Harper Plumbing
Harper Plumbing, San, Po Box 106, San Marcos, TX (Owned by: John H. Miller) holds a Pm Plumber license and 2 other licenses according to the San Antonio license board.
Their BuildZoom score of 101 ranks in the top 12% of 222,249 Texas licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Harper Plumbing, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Harper Plumbing Services
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Harper Plumbing Contact Information
Phone Number: (512) 749-8237
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Address: P O BOX 106, San Marcos, TX 78667
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Harper Plumbing San Marcos
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Harper Plumbing has a BuildZoom score of 101, which places them above 88% of 222,249 contractors in Texas.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Harper Plumbing has worked on at least
11.0 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
|
10 projects
|
Plumbing projects |
|
3 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Harper Plumbing mostly works on
plumbing project
and sewer lateral
projects.
Pricing
|
3 projects
|
$250k-$500k |
The typical size of their permits is approximately $400,000. 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.
Ste 300 office finish out for part of building 3-narrative letter for permit 2025-1439 the permit and plans were both incorrectly labeled/applied for under the wrong address. they both showed 340 e fm 150 building 2 however the finish out is going into building 3. the address has been corrected on this plan set
Valuation:
$250,000
Permit #:
BLC2025-1439
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Shell building 5
Valuation:
$400,000
Permit #:
BLC2024-1261
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building # 2
Valuation:
$400,000
Permit #:
BLC2023-1186
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Out of city mobile home plumbing new sewer tie-in to private side
Valuation:
$100,000
Permit #:
2023-46417
Status:
issued
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
Building 1
Valuation:
$400,000
Permit #:
BLC2023-1185
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building #3
Valuation:
$500,000
Permit #:
BLC2023-1184
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Kitchen pantry-suite 650 in the kyle prosperity business park. new tenant kitchen pantry llc requests to install one three-compartment sink and one hand wash sink in one of the interior office rooms as well as one utility sink and one water heater in the warehouse area;run and install new conduit bodies and electrical outlets upgrade circuit breaker to 150 amp; paint two office rooms ... see more
Valuation:
$2,500
Permit #:
BLC2020-0418
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building no: 1; unit no: 54; interior renovation to an existing building. to include some exterior building improvements. **2021 i-codes/2020 nec**
Valuation:
N/A
Permit #:
COM-RML-PMT23-40000958
Status:
final
Fee:
$5,800
Permit Type:
N/A
Building Type:
N/A
Plumbing permit - new - new 1-story single family residence to have 4 bedrooms 1.5 baths covered porch. ***green building***smart housing 100% fees waived*** - r- 101 single family houses
Valuation:
N/A
Permit #:
2020-079636 PP
Status:
final
Fee:
$408
Permit Type:
R- 101 single fam...
Building Type:
N/A
Plumbing permit - new - *new 1-story single family residence to have 3 bedrooms 1.5 baths covered porch. *green building*smart housing 100% fees waived* - r- 101 single family houses
Valuation:
N/A
Permit #:
2020-079634 PP
Status:
final
Fee:
$398
Permit Type:
R- 101 single fam...
Building Type:
N/A
Plumbing for new custom home
Valuation:
$560,978
Permit #:
BRES-000049-2019
Status:
complete
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Plumbing for two story metal building with 900 sf apartment on second floor
Valuation:
$174,000
Permit #:
BRES-003238-2018
Status:
complete
Fee:
$81
Permit Type:
N/A
Building Type:
N/A
Jack's grocery plumbingadd hand wash sink as per health dept. request
Valuation:
N/A
Permit #:
2023-49129
Status:
issued
Fee:
N/A
Permit Type:
Mechanical
Building Type:
N/A
Single family residence plumbing
Valuation:
N/A
Permit #:
2023-45882
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family
10/27/2020 completion permit ref ap2359092.cgarcia
Valuation:
N/A
Permit #:
C2672678
Status:
complete
Fee:
$212
Permit Type:
N/A
Building Type:
N/A
10/27/2020 completion permit ref ap2528095.cgarcia
Valuation:
N/A
Permit #:
C2672671
Status:
complete
Fee:
$87
Permit Type:
N/A
Building Type:
N/A
Building no: 1; unit no: 54
Valuation:
N/A
Permit #:
BLD-TCO-REQ24-46300205
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mobile home plumbing
Valuation:
N/A
Permit #:
2023-47186
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Manufactured home
Ste 100-d future tenant fin-out
Valuation:
$50,000
Permit #:
BLC2020-0309
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition plumbing for 14 fixtures in 2 bathrooms and a commercial kitchen
Valuation:
N/A
Permit #:
2549560
Status:
filed
Fee:
$168
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
119
BZ Score
$21K
Avg Project
-
Projects
121
BZ Score
$4.5K
Avg Project
-
Projects
Harper Plumbing Reviews
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Verified License
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Harper Plumbing License info
Verified License
| License # | PM39295 |
| Status | Active |
| City | San Antonio |
| Type | Pm Plumber |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Harper Plumbing at the City of San Antonio, TX Licensed Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 4372 |
| Status | Inactive |
| City | Round Rock |
| Type | Contractor |
- According to the The City of Round Rock, TX , the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Harper Plumbing at the The City of Round Rock, TX .
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PM39295 |
| Status | Inactive |
| City | San Antonio |
- According to the City of San Antonio, TX Licensed Contractors, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Harper Plumbing at the City of San Antonio, TX Licensed Contractors.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
52
Permits
- Building permit records show that Harper Plumbing has worked on 52 permitted projects.
Harper Plumbing Employees
JM
John H Miller
JM
John H. Miller
Owner
JM
John Miller
Owner