Updated: Jun 18, 2026
Location and Projects
Address
Sussex, WI, 53089
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Gretzinger Mechanical Inc
Gretzinger Mechanical Inc at WI 53089, held a HVAC/Mechanical Contractor license (#1056415) with the Milwaukee contractors license board. We last verified the license was inactive on 06-17-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 94,017 Wisconsin contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our bidding system to be easily matched to qualified, licensed professionals in your area.
Gretzinger Mechanical Inc Contact Information
Phone Number: (262) 246-3992
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Gretzinger Mechanical Inc
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Gretzinger Mechanical Inc, click “This is My Business” to update your information.
Activity
|
1 project
|
2024 |
Our building permit records indicate that Gretzinger Mechanical Inc has worked on at least
1.0 project over the past 2 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
|
$50k-$100k |
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 Gretzinger Mechanical Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
No Description Available
Valuation:
$80,000
Permit #:
3395
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Emergency room addition & remodel 33, 301 sq. ft @ 20 sq. ft. interior remodel of existing $120, 000 @ $6.00/1000
Valuation:
$4,200,000
Permit #:
026110
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Early start permit - footings and foundation to ground level only
Valuation:
N/A
Permit #:
022134
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Gretzinger Mechanical Inc Reviews
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Gretzinger Mechanical Inc License info
Inactive License
| License # | 1056415 |
| Status | Inactive |
| City | Milwaukee |
| Type | Hvac Contractor |
- According to the City of Milwaukee License Search, 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 Gretzinger Mechanical Inc at the City of Milwaukee License Search.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1056415 |
| Status | Inactive |
| State | Wisconsin |
| Type | Hvac Contractor |
- According to the Wisconsin Department of Safety and Professional Services, 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 Gretzinger Mechanical Inc at the Wisconsin Department of Safety and Professional Services.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Gretzinger Mechanical Inc, click “This is My Business” to update your information.
Gretzinger Mechanical Inc Employees
GI
Gretzinger Inc