Updated: May 15, 2026
Location and Projects
Address
136 DECATUR CT, Hercules, CA, 94547
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Mc Donald Professional Electrician
Mc Donald Professional, 136 Decatur Ct, Hercules, CA (Owned by: Michael David Conn) holds a Electrical, Plumbing, Refrigeration license and 5 other licenses according to the California license board.
Their BuildZoom score of 96 ranks in the top 20% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mc Donald Professional, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mc Donald Professional Contact Information
Phone Number: (510) 708-8893
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Address: 136 DECATUR CT, Hercules, CA 94547
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Mc Donald Professional Hercules
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mc Donald Professional has a BuildZoom score of 96, which places them above 80% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Mc Donald Professional has worked on at least
2.0 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.
Pricing
|
1 project
|
< $5k |
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.
Building Permits by Mc Donald Professional
This is a sample of this contractor's permits. Click here to access their complete permit history.
Temporary power pole permit for proposed uhd/adu development
Valuation:
N/A
Permit #:
BIE24-005134
Status:
issued
Fee:
$133
Permit Type:
N/A
Building Type:
N/A
Bathroom remodeling plumbing for addition of 86 sf at front of upper level excavate and create 8 ceiling height at lower level and convert to habitable space; 2 new bedrooms 1 bathroom den and family room. convert upper level family room to new interior stairs. ds140416
Valuation:
N/A
Permit #:
RP1501311
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bathroom remodeling mechanical for duct alteration for addition of 86 sf at front of upper level excavate and create 8 ceiling height at lower level and convert to habitable space; 2 new bedrooms 1 bathroom den and family room. convert upper level family room to new interior stairs. ds140416
Valuation:
N/A
Permit #:
RM1500856
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bathroom remodeling electrical with 200 amp service upgrade for addition of 86 sf at front of upper level excavate and create 8 ceiling height at lower level and convert to habitable space; 2 new bedrooms 1 bathroom den and family room. convert upper level family room to new interior stairs. ds140416
Valuation:
N/A
Permit #:
RE1501672
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical with 200 amp service upgrade for addition of 86 sf at front of upper level excavate and create 8 ceiling height at lower level and convert to habitable space; 2 new bedrooms 1 bathroom den and family room. convert upper level family room to new interior stairs. ds140416
Valuation:
N/A
Permit #:
RE1501672
Status:
final
Fee:
$387
Permit Type:
N/A
Building Type:
N/A
Area 8 - relocate water main, put in gas line to pool heater
Valuation:
$3,807
Permit #:
MIS2001-00566
Status:
Expired Non-Responsive
Fee:
$144
Permit Type:
N/A
Building Type:
N/A
Demolish of single family residence
Valuation:
N/A
Permit #:
BP-0604341
Status:
final
Fee:
$63
Permit Type:
N/A
Building Type:
N/A
Install ul listed hearth pad & free standing wood stove in family room
Valuation:
$1,650
Permit #:
0403434
Status:
final
Fee:
$113
Permit Type:
N/A
Building Type:
N/A
Upgrade service panel to 200 amps.
Valuation:
$0
Permit #:
E030285
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
7 lites 1 fan 5 sw 1 tract lite
Valuation:
N/A
Permit #:
98041-20000-07608
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
C/o split system hvac
Valuation:
$7,000
Permit #:
0309085
Status:
final
Fee:
$185
Permit Type:
N/A
Building Type:
N/A
New package hvac
Valuation:
$8,000
Permit #:
0314050
Status:
final
Fee:
$263
Permit Type:
N/A
Building Type:
N/A
Temporary power pole electrical panel inspection
Valuation:
$500
Permit #:
BIE23-000245
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing for addition of 86 sf at front of upper level excavate and create 8 ceiling height at lower level and convert to habitable space; 2 new bedrooms 1 bathroom den and family room. convert upper level family room to new interior stairs. ds140416
Valuation:
N/A
Permit #:
RP1501311
Status:
expired
Fee:
$163
Permit Type:
N/A
Building Type:
N/A
Mechanical for duct alteration for addition of 86 sf at front of upper level excavate and create 8 ceiling height at lower level and convert to habitable space; 2 new bedrooms 1 bathroom den and family room. convert upper level family room to new interior stairs. ds140416
Valuation:
N/A
Permit #:
RM1500856
Status:
expired
Fee:
$163
Permit Type:
N/A
Building Type:
N/A
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Mc Donald Professional Reviews
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Verified License
BuildZoom confirmed this contractor's license
Mc Donald Professional License info
Verified License
| License # | 638599 |
| Status | Active |
| State | California |
| Type | Electrical, Plumbing, Refrigeration |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Mc Donald Professional at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 927849 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Mc Donald Professional at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 865185 |
| Status | Inactive |
| State | California |
| Type | Building Moving, Demolition |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Mc Donald Professional at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 702840 |
| Status | Inactive |
| State | California |
| Type | Landscaping |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Mc Donald Professional at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 969417 |
| Status | Inactive |
| State | California |
| Type | Landscaping |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Mc Donald Professional at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 887042 |
| Status | Inactive |
| State | California |
| Type | Building Moving, Demolition |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Mc Donald Professional at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
9
Permits
- Building permit records show that Mc Donald Professional has worked on 9 permitted projects.
Mc Donald Professional Employees
DD
Daniel Mc Donald
Sole Owner
DD
Daniel Mc Donald
Sole Owner
DD
Daniel T Mc Donald
Sole Owner
DD
Dennis Charles Mc Donald
Qualify Partner
DD
Dennis Charles Mc Donald, Lisa Ann Mc Donald
Owner
LD
Lisa Ann Mc Donald
General Partner
MC
Michael David Conn
Owner
TC
Tong Loi Cheong
Sole Owner