Updated: Jun 06, 2026
Location and Projects
Address
4924 Winton Rd, Cincinnati, OH, 45232
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Corcoran & Harnist Heating & A/C
Corcoran & Harnist Heating & A/C, 4924 Winton Rd, Cincinnati, OH (Employees: Gregory A Harnist, Gregory A Harnist Harnist, and Harnist, Gregory A) holds a Hvac Contractors license and 19 other licenses according to the Hamilton license board.
Their BuildZoom score of 107 ranks in the top 6% of 52,717 Ohio licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Corcoran & Harnist Heating & A/C, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Corcoran & Harnist Heating & A/C Services
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Corcoran & Harnist Heating & A/C Contact Information
Phone Number: (513) 921-2227
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Address: 4924 Winton Rd, Cincinnati, OH 45232
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Corcoran & Harnist Heating & A/C Cincinnati
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Corcoran & Harnist Heating & A/C has a BuildZoom score of 107, which places them above 94% of 52,717 contractors in Ohio.
Activity
|
28 projects
|
2025 |
|
8 projects
|
2024 |
|
12 projects
|
2023 |
Our building permit records indicate that Corcoran & Harnist Heating & A/C has worked on at least
48.0 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
|
3 projects
|
New Constructions |
|
47 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Corcoran & Harnist Heating & A/C mostly works on
hvac project
and new construction
projects.
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 Corcoran & Harnist Heating & A/C
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential fireplaces: no new ductwork - electric by electrian and he will file his permit and since it is a fireplace no ductwork involved-
Valuation:
N/A
Permit #:
2025P07483
Status:
withdrawn
Fee:
$128
Permit Type:
Existing
Building Type:
N/A
Residential heating only: 2nd furnaace is 60000 btu
Valuation:
N/A
Permit #:
2025P00195
Status:
issued
Fee:
$172
Permit Type:
Existing
Building Type:
N/A
We are not installing a furnace - there is no other choice to make saying we are not- we are installing a pizza oven flue pipe
Valuation:
N/A
Permit #:
2024P07715
Status:
issued
Fee:
$123
Permit Type:
Existing
Building Type:
N/A
Gas furnance air conditioning ductwork
Valuation:
N/A
Permit #:
2025P02526
Status:
issued
Fee:
N/A
Permit Type:
Residence 1-2 family
Building Type:
N/A
Furnace air ductwork
Valuation:
N/A
Permit #:
2025P01281
Status:
final
Fee:
N/A
Permit Type:
Existing resident...
Building Type:
N/A
Replace fan coil heat pump system with new carrier fan coil heat pump system connected to existing duct work and wiring
Valuation:
N/A
Permit #:
2023P10206
Status:
issued
Fee:
$205
Permit Type:
Existing
Building Type:
N/A
Residential combination furnace or air handler with air conditioner:
Valuation:
N/A
Permit #:
2023P00858
Status:
issued
Fee:
$151
Permit Type:
Existing
Building Type:
N/A
Replace 2 air conditioners 1 furnace misc dw relocation
Valuation:
N/A
Permit #:
2025P07046
Status:
issued
Fee:
$452
Permit Type:
Existing
Building Type:
N/A
Install hvac system in new single family dwelling
Valuation:
N/A
Permit #:
2022P01339
Status:
final
Fee:
$1,304
Permit Type:
Existing
Building Type:
N/A
New office building new ductwork and systems
Valuation:
N/A
Permit #:
2023P01156
Status:
plancheck
Fee:
$111
Permit Type:
Existing
Building Type:
N/A
Residential, air conditioning/heat pump only:
Valuation:
N/A
Permit #:
2021P05060
Status:
final
Fee:
$100
Permit Type:
Existing
Building Type:
N/A
Residential combination furnace or air handler with air conditioner:
Valuation:
N/A
Permit #:
2024P09778
Status:
final
Fee:
$172
Permit Type:
Existing
Building Type:
N/A
Residential combination furnace or air handler with air conditioner:
Valuation:
N/A
Permit #:
2024P06553
Status:
issued
Fee:
$353
Permit Type:
Existing
Building Type:
N/A
Residential, combination furnace or air handler with air conditioner:
Valuation:
N/A
Permit #:
2024P06544
Status:
final
Fee:
$172
Permit Type:
Existing
Building Type:
N/A
Install ductwork registers grills insulation fire dampers and equipment
Valuation:
N/A
Permit #:
2024P04065
Status:
final
Fee:
$1,306
Permit Type:
Existing
Building Type:
N/A
Restoration after fire. replace 2 air handlers & replace 4 return ducts
Valuation:
N/A
Permit #:
2022P10206
Status:
issued
Fee:
$695
Permit Type:
Existing
Building Type:
N/A
New furnace air conditioning and ductwork
Valuation:
N/A
Permit #:
2023P02370
Status:
issued
Fee:
$851
Permit Type:
Existing
Building Type:
N/A
Carrier ducted mini split system 2 heads to serve addition
Valuation:
N/A
Permit #:
2024P09520
Status:
final
Fee:
$520
Permit Type:
Existing
Building Type:
N/A
Installation of new mini split unit - no ductwork involved asociated to permit 2021p00323
Valuation:
N/A
Permit #:
2021P01941
Status:
approved
Fee:
$139
Permit Type:
Existing
Building Type:
N/A
Install new mini split heat pump with 2 indoor heads
Valuation:
N/A
Permit #:
2021P00013
Status:
final
Fee:
$177
Permit Type:
Existing
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Corcoran & Harnist Heating & A/C License info
Verified License
| Status | Active |
| City | Hamilton |
| Type | Hvac Contractors |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | PL.27993 |
| Status | Active |
| City | Ohio Professional |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | RE.27993 |
| Status | Active |
| City | Ohio Professional |
| Type | Refrigeration Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | HY.27993 |
| Status | Active |
| City | Ohio Professional |
| Type | Hydronics Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | HV.27993 |
| Status | Active |
| City | Ohio Professional |
| Type | Hvac Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CBRC000462 |
| Status | Active |
| City | Cincinnati |
| Type | Plumbing State Licensed |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Cincinnati Area Geographic Information Systems.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CBRC000462 |
| Status | Active |
| City | Cincinnati |
| Type | Mechanical State Licensed |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Cincinnati Area Geographic Information Systems.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CBRC000462 |
| Status | Active |
| City | Cincinnati |
| Type | Hydronic Piping State Licensed |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Cincinnati Area Geographic Information Systems.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CBRC000462 |
| Status | Active |
| City | Cincinnati |
| Type | General |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Cincinnati Area Geographic Information Systems.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CBRC000462 |
| Status | Active |
| City | Cincinnati |
| Type | Refrigeration State Licensed |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Corcoran & Harnist Heating & A/C at the Cincinnati Area Geographic Information Systems.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | RE-0000027993 |
| Status | Active |
| State | Ohio |
| Type | Refrigeration |
- When BuildZoom last verified this license, it had an expiration date of March, 2016. Check the current license status of Corcoran & Harnist Heating & A/C with the Ohio Department of Commerce
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PL-0000027993 |
| Status | Active |
| State | Ohio |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of March, 2016. Check the current license status of Corcoran & Harnist Heating & A/C with the Ohio Department of Commerce
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | HV-0000027993 |
| Status | Active |
| State | Ohio |
| Type | HVAC |
- When BuildZoom last verified this license, it had an expiration date of March, 2016. Check the current license status of Corcoran & Harnist Heating & A/C with the Ohio Department of Commerce
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | HY-0000027993 |
| Status | Active |
| State | Ohio |
| Type | Hydronics |
- When BuildZoom last verified this license, it had an expiration date of March, 2016. Check the current license status of Corcoran & Harnist Heating & A/C with the Ohio Department of Commerce
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PL.27993 |
| Status | Inactive |
| City | Ohio Professional |
| Type | Plumbing Contractor |
- According to the Ohio Professional License Center, 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 Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | RE.27993 |
| Status | Inactive |
| City | Ohio Professional |
| Type | Refrigeration Contractor |
- According to the Ohio Professional License Center, 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 Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HY.27993 |
| Status | Inactive |
| City | Ohio Professional |
| Type | Hydronics Contractor |
- According to the Ohio Professional License Center, 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 Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HV.27993 |
| Status | Inactive |
| City | Ohio Professional |
| Type | Hvac Contractor |
- According to the Ohio Professional License Center, 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 Corcoran & Harnist Heating & A/C at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Hamilton |
| Type | Hvac Contractors |
- According to the City of Hamilton, Ohio, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Hamilton |
| Type | Hvac Contractors |
- According to the City of Hamilton, Ohio, 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.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
422
Permits
- Building permit records show that Corcoran & Harnist Heating & A/C has worked on 422 permitted projects.
Corcoran & Harnist Heating & A/C Employees
GH
Gregory A Harnist
GH
Gregory A Harnist Harnist
HA
Harnist, Gregory A
Employee