Updated: Jun 03, 2026
Location and Projects
Address
Racine, WI, 53403
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Keystone Heating & Air Conditioning, Inc
Keystone Heating & Air Conditioning, Inc at WI 53403, held a HVAC/Mechanical Contractor license (#4122) with the Milwaukee contractors license board. We last verified the license was inactive on 05-18-2026.
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 project planner to be easily matched to qualified, licensed professionals in your area.
Keystone Heating & Air Conditioning, Inc Services
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Keystone Heating & Air Conditioning, Inc Contact Information
Phone Number: (262) 554-1080
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Building Permits by Keystone Heating & Air Conditioning, Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
New single family home
Valuation:
N/A
Permit #:
BLDNRH-2017-04402
Status:
complete
Fee:
$446
Permit Type:
New
Building Type:
Single family
No Description Available
Valuation:
N/A
Permit #:
172876
Status:
plancheck
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
169415
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
168659
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
168137
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
163341
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
163296
Status:
plancheck
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
162837
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
162628
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
161319
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
161176
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
160984
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
160911
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
160725
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
160724
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
159828
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
159822
Status:
ISSUED
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Install hvac system for rear office of rogans (2145), 2 exhaust fans for new restrooms, 2 electric wall heaters, rebalance existing system for two tenant spaces.
Valuation:
$8,000
Permit #:
122592
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
174696
Status:
plancheck
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
174695
Status:
plancheck
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
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Keystone Heating & Air Conditioning, Inc License info
Inactive License
| License # | 4122 |
| 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 Keystone Heating & Air Conditioning, 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 # | 4122-HVACCONT |
| 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 Keystone Heating & Air Conditioning, 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 Keystone Heating & Air Conditioning, Inc, click “This is My Business” to update your information.
47
Permits
- Building permit records show that Keystone Heating & Air Conditioning, Inc has worked on 47 permitted projects.
Keystone Heating & Air Conditioning, Inc Employees
DK
David Katt
DK
David L Katt
Owner