Updated: May 26, 2026
Location and Projects
Address
P O BOX 327, Lake George, CO, 80827
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Mad Dog Plumbing Inc
Mad Dog Plumbing Inc, Lake, Po Box 327, Lake George, CO (Owned by: John Patrick Walsh) holds a Mechanical A license and 7 other licenses according to the Douglas County license board.
Their BuildZoom score of 93 ranks in the top 27% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mad Dog Plumbing Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mad Dog Plumbing Inc Services
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Mad Dog Plumbing Inc Contact Information
Phone Number: (302) 798-5142
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Address: P O BOX 327, Lake George, CO 80827
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential interior remodel/repair
Valuation:
$2,000
Permit #:
M98266
Status:
canceled
Fee:
$133
Permit Type:
434 (residential ...
Building Type:
N/A
Ponderosa sleeping cabin
Valuation:
N/A
Permit #:
A56508
Status:
final
Fee:
N/A
Permit Type:
Commercial altera...
Building Type:
N/A
Manufactured on basement
Valuation:
N/A
Permit #:
A56461
Status:
final
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
Manufactured on crawlspace
Valuation:
N/A
Permit #:
A56670
Status:
final
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
Manufactured on crawlspace
Valuation:
N/A
Permit #:
A56670
Status:
final
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
Inside gas line and heater
Valuation:
N/A
Permit #:
A58169
Status:
final
Fee:
N/A
Permit Type:
Residential alter...
Building Type:
N/A
Modular w crawlspace
Valuation:
N/A
Permit #:
A56249
Status:
final
Fee:
N/A
Permit Type:
Commercial altera...
Building Type:
N/A
Manufactured on crawlspace
Valuation:
N/A
Permit #:
A55639
Status:
final
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
Manufactured on crawlspace
Valuation:
N/A
Permit #:
A55639
Status:
final
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
Manufactured on crawlspace
Valuation:
N/A
Permit #:
A54925
Status:
final
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
10071329
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Detached garage
Valuation:
N/A
Permit #:
A54781
Status:
final
Fee:
N/A
Permit Type:
Residential garag...
Building Type:
N/A
Gas line to future garage heater unit
Valuation:
$100
Permit #:
L46505
Status:
complete
Fee:
$50
Permit Type:
434 (residential ...
Building Type:
N/A
Manufactured on crawlspace
Valuation:
N/A
Permit #:
A53201
Status:
final
Fee:
N/A
Permit Type:
Residential alter...
Building Type:
N/A
Addition garage
Valuation:
N/A
Permit #:
A53834
Status:
final
Fee:
N/A
Permit Type:
Residential alter...
Building Type:
N/A
Rs - custom
Valuation:
$356,753
Permit #:
17-10888
Status:
issued
Fee:
$6,207
Permit Type:
New
Building Type:
Residential
Rs - custom
Valuation:
$279,849
Permit #:
12-15546
Status:
complete
Fee:
$5,286
Permit Type:
New
Building Type:
Residential
Bathroom
Valuation:
N/A
Permit #:
A58131
Status:
final
Fee:
N/A
Permit Type:
Residential alter...
Building Type:
N/A
Rs - custom
Valuation:
$175,902
Permit #:
11-05079
Status:
complete
Fee:
$3,541
Permit Type:
New
Building Type:
Residential
Modular on foundation
Valuation:
N/A
Permit #:
A55405
Status:
final
Fee:
N/A
Permit Type:
New single family...
Building Type:
N/A
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Mad Dog Plumbing Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Mad Dog Plumbing Inc License info
Verified License
| License # | MA170463 |
| Status | Active |
| County | Douglas County |
| Type | Mechanical A |
- BuildZoom verified this license was active as of September 2025.
Verify this license's status for Mad Dog Plumbing Inc at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MP.00180485 |
| Status | Active |
| State | Colorado |
| Type | Master Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Mad Dog Plumbing Inc with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PC.0001506 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Mad Dog Plumbing Inc with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 1506 |
| Status | Active |
| County | Douglas County |
| Type | State Plumbing |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Mad Dog Plumbing Inc with the Douglas County Building Division
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 180485 |
| Status | Active |
| County | Douglas County |
| Type | Master Plumbing |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of Mad Dog Plumbing Inc with the Douglas County Building Division
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 180485 |
| Status | Inactive |
| State | Colorado |
| Type | Plumber |
- According to the Colorado Division of Professions and Occupations, 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 Mad Dog Plumbing Inc at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1506 |
| Status | Inactive |
| State | Colorado |
| Type | Plumbing Contractor |
- According to the Colorado Division of Professions and Occupations, 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 Mad Dog Plumbing Inc at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P02096 |
| Status | Inactive |
| County | Douglas County |
| Type | Plumbing |
- According to the Douglas County Building Division, 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 Mad Dog Plumbing Inc at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Insured
| Insurer | Safeco Business Ins |
90
Permits
- Building permit records show that Mad Dog Plumbing Inc has worked on 90 permitted projects.
Mad Dog Plumbing Inc Employees
JW
John Patrick Walsh
Owner
JW
John Walsh
Owner
LW
Linda L Walsh
Office Manager
MI
Mad Dog Plumbing Inc