Updated: Mar 18, 2026
Location and Projects
Address
22502 Kobs Rd, Tomball, TX, 77377
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Diffco Photos
Diffco Plumber
Diffco is a leading civil construction company providing sitework, underground utilities and concrete services for the commercial and industrial markets.
From BuildZoom: Diffco, 22502 Kobs Rd, Tomball, TX (Employee: Matthew Thomas Diffendal) holds a Plumbing Contractor license and 3 other licenses according to the Dickinson license board.
Their BuildZoom score of 104 ranks in the top 9% of 222,249 Texas licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diffco, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Diffco Tomball
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Diffco has a BuildZoom score of 104, which places them above 91% of 222,249 contractors in Texas.
Activity
|
3 projects
|
2025 |
|
14 projects
|
2024 |
|
15 projects
|
2023 |
Our building permit records indicate that Diffco has worked on at least
32.0 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
|
12 projects
|
Home Additions |
|
26 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Diffco mostly works on
plumbing project
and home addition
projects.
Pricing
|
3 projects
|
< $5k |
|
1 project
|
$20k-$50k |
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.
Ilt aggieland high school - phase i only - cnew2024-000027
Valuation:
N/A
Permit #:
PLBG2025-000018
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2 x 28 wide driveways w 45 linear ft. of sidewalk 21 ibc
Valuation:
$0
Permit #:
25024526
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
Underground fire line to 23096964
Valuation:
$0
Permit #:
24085751
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
(m of 5) ev stn. w/mod building & canopies a-e 1-1-2-m-b 21 ibc
Valuation:
N/A
Permit #:
24047649
Status:
issued
Fee:
N/A
Permit Type:
Structures other ...
Building Type:
N/A
Grade and fill on empty lot/detention pond 15ibc
Valuation:
N/A
Permit #:
23090301
Status:
issued
Fee:
N/A
Permit Type:
Structures other ...
Building Type:
N/A
Sitework w/paving for parking addition 21 ibc
Valuation:
N/A
Permit #:
24038304
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
(epr) 185325 sf hi-rise shell/core building 1-8-1-b-a 12ibc sp/fa (m/3)
Valuation:
N/A
Permit #:
19036893
Status:
issued
Fee:
N/A
Permit Type:
Office banks & pr...
Building Type:
N/A
10 800 sf hospital remodel w/penthouse 1-2-1-i2-b 15 ibc spk/fa
Valuation:
N/A
Permit #:
22087723
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
Addition of exit balcony & stairs (1-3-2-e-b-100%) 15 ibc
Valuation:
N/A
Permit #:
22109580
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
Sitework w/utilities for dog park improvements 12ibc
Valuation:
N/A
Permit #:
21117461
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
Commercial site work/foundations addition 2012 ibc
Valuation:
$0
Permit #:
20116800
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
*** void-old permit*** installing 149 lf of 18 hdpe 2 inlets and 2 junction boxes. **main building permit is in review**
Valuation:
N/A
Permit #:
PC-230640
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
72 850 sf new educ. school w/sitework (m-3) 1-2-2-e-b 15 ibc spk
Valuation:
N/A
Permit #:
23096964
Status:
issued
Fee:
N/A
Permit Type:
Schools & other e...
Building Type:
N/A
8 374 sf. school expansion/remodel w/sitework 1-3-2-e-b 15ibc spk
Valuation:
N/A
Permit #:
22066273
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
31 629 sf. sitework w/paving for parking improvements 2012 ibc
Valuation:
N/A
Permit #:
21116553
Status:
issued
Fee:
N/A
Permit Type:
Structures other ...
Building Type:
N/A
8 424 sf school rem/185 s.f. addition 1-1-5-e-b 12 ibc fa (m/2)
Valuation:
N/A
Permit #:
21102506
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
97 063 sf school rmdl pre k-5 w/stwrk 1-1-2-e-b 12ibc spk/fa(m/2)
Valuation:
N/A
Permit #:
21109279
Status:
issued
Fee:
N/A
Permit Type:
Non-residential a...
Building Type:
N/A
New 7600sf pedestrian walkway/skybridge 1-1-2-b-b 12ibc sp/fa(2/3)
Valuation:
N/A
Permit #:
21101288
Status:
issued
Fee:
N/A
Permit Type:
Structures other ...
Building Type:
N/A
464 sf new comfort station w/sitework 1-1-5-b-b 15 ibc (m/3)
Valuation:
N/A
Permit #:
22052955
Status:
issued
Fee:
N/A
Permit Type:
Other non-residen...
Building Type:
N/A
New 145 925 office/parking garage 1-5-2-s2/b-a 12 ibc 100%spk
Valuation:
N/A
Permit #:
22025750
Status:
issued
Fee:
N/A
Permit Type:
Office banks & pr...
Building Type:
N/A
Diffco Reviews
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Recent Buildzoom Projects
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Verified License
BuildZoom confirmed this contractor's license
Diffco License info
License Not Verified
| License # | 25-000491 |
| Status | Active |
| City | Dickinson |
| Type | Plumbing Contractor |
| Date Issued | 10-08-2025 |
- When BuildZoom last verified this license, it had an expiration date of February, 2026. Check the current license status of Diffco with the City of Dickinson
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 55996 |
| Status | Active |
| State | Louisiana |
| Type | Building Construction |
| Class | Commercial License Certificate |
| Date Issued | 01-25-2026 |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Diffco at the Louisiana Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 0372450620 |
| Status | Inactive |
| State | Arkansas |
| Type | Underground Piping, Cable, Trenching, Boring, Water And Sewer Lines |
- According to the Arkansas Contractors Licensing Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Diffco at the Arkansas Contractors Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 0372450518 |
| Status | Inactive |
| State | Arkansas |
| Type | Underground Piping, Cable, Trenching, Boring, Water And Sewer Lines |
- According to the Arkansas Contractors Licensing Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Diffco at the Arkansas Contractors Licensing Board.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
105
Permits
- Building permit records show that Diffco has worked on 105 permitted projects.
Diffco Employees
MD
Matthew Thomas Diffendal