Updated: Apr 28, 2026
Location and Projects
Address
303 OLD COUNTY LINE RD, Westerville, OH, 43081
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ML Heating Co Inc
ML Heating Co Inc, 303 Old County Line Rd, Westerville, OH (Owned by: Hal E Mullins) holds a Heating Hvac license and 6 other licenses according to the Columbus license board.
Their BuildZoom score of 91 ranks in the top 37% of 52,717 Ohio licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring ML Heating Co Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
ML Heating Co Inc Contact Information
Phone Number: (614) 882-7490
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Address: 303 OLD COUNTY LINE RD, Westerville, OH 43081
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Residence heating ventilating air conditioning
Valuation:
N/A
Permit #:
16-23081_HVAC-5294
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Residence heating ventilating air conditioning
Valuation:
N/A
Permit #:
16-23851_HVAC-7136
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Rbld1115751 5 heat runs; 1 return air vent kitchen hood and vent 1 bathroom fan 333 hubbard avenue alter 2 story frame 1 family dwelling to building new addition and kitchen remodel (20 x 24 addition at rear of house) per coa 11-6-6 dated 5-26-11. all mep's must be pulled seperatly
Valuation:
$2,300
Permit #:
ENAR1125686
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Commercial heating ventilating air conditioning
Valuation:
N/A
Permit #:
15-21095_CHVA-631
Status:
final
Fee:
$72
Permit Type:
N/A
Building Type:
N/A
Residence heating ventilating air conditioning
Valuation:
N/A
Permit #:
14-00201785_HVAC-632
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Residence heating ventilating air conditioning
Valuation:
N/A
Permit #:
15-22249_HVAC-3467
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Building/residential/major alteration/environmental air
2011-03-25
177 riverview park dr sf replace existing heating & cooling system install 5 heatruns install 1 return air move 4 heat runs move 1 return air vent kitchen hood rbld1022315 - alter 2 story frame 1 family dwelling to remodel kitchen tear down/rebuild and expansion of an existing sunroom into living space 177 riverview park dr
Valuation:
$9,000
Permit #:
ENAR1031188
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Rbld1700945 adding kitchen hood exhaust adding smoking room exhaust and makeup air license number: h00160
Valuation:
N/A
Permit #:
MMEPR1702289
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
1320 tranquil dr install 4 heat runs and 2 return air for new addition -single family dwg mls rbld1524489
Valuation:
N/A
Permit #:
ENAR1536023
Status:
complete
Fee:
$225
Permit Type:
N/A
Building Type:
N/A
Building/commercial/major alteration/environmental air
2014-03-21
4945 olentangy river rd air balance; fire dampers dryer exhaust exhaust air duct relocated air diffusers clean diffusers two exhaust fans intr1340490
Valuation:
N/A
Permit #:
ENAR1405364
Status:
complete
Fee:
$600
Permit Type:
N/A
Building Type:
N/A
Building/residential/major alteration/environmental air
2011-10-07
Rbld1111824 - - move 2 heat runs vent bathroom fan vent kitchen hood 216 oakland park ave alter 2 sty frm 1 family dwg by remodel kitchen per plan addition new half bathroom separate mep's as needed inspections are required
Valuation:
$500
Permit #:
ENAR1116331
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Building/residential/new construction/environmental air
2015-01-21
86 northridge rd adding heating and air conditioning outside fresh air (2) lighted bathroom fans kitchen hood and dryer vent rbld1403386
Valuation:
N/A
Permit #:
ENAR1407563
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Rbld1702075: hvac 3 heat runs 1 return air vent bathroom fan license number: h00160
Valuation:
N/A
Permit #:
MMEPR1703847
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Building/residential/major alteration/environmental air
2016-07-14
Rbld1606110 vent kitchen range hood move 2 heat runs rconnect 2 heat runs
Valuation:
N/A
Permit #:
ENAR1609447
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Replacement of an exhaust fan mls ok per m. roush license number: h00160
Valuation:
N/A
Permit #:
MMLSR1615004
Status:
complete
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Building/residential/major alteration/environmental air
2013-09-10
7024 linbrook blvd alter two story frame single family dwelling rbld1327208 - vent kitchen hood 2 heat runs
Valuation:
$48,000
Permit #:
ENAR1329728
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Residence heating ventilating air conditioning
Valuation:
N/A
Permit #:
14-00200316_HVAC00
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building/residential/major alteration/environmental air
2010-01-12
82 aldrich rd rbld1000334 mls rough and final at same time move one heat run move one return air alter 1-family dwelling to renovate living room. addition built ins and replace ceiling. new electric minor wall framing. refrence approved drawning/work scope
Valuation:
$695
Permit #:
ENAR1000474
Status:
complete
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Building/residential/major alteration/environmental air
2011-01-31
197 riverview park dr sf alterations: 5 heat runs vent kitchen hood rbld1007344 - alter 2 sty frm 1 family dwg by addition 10 x 13 screened porch on crawl foundation addition new french door in dining room addition new window in kitchen remodel kitchen and relocate basement stairs per plan
Valuation:
$1,500
Permit #:
ENAR1025315
Status:
complete
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Rbld1115751 5 heat runs; 1 return air vent kitchen hood and vent 1 bathroom fan 333 hubbard avenue alter 2 story frame 1 family dwelling to building new addition and kitchen remodel (20 x 24 addition at rear of house) per coa 11-6-6 dated 5-26-11. all mep's must be pulled seperatly
Valuation:
$2,300
Permit #:
ENAR1125686
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
ML Heating Co Inc License info
Verified License
| License # | H00160 |
| Status | Active |
| City | Columbus |
| Type | Heating Hvac |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for ML Heating Co Inc at the The City of Columbus, OH.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | HV.31939 |
| Status | Active |
| City | Ohio Professional |
| Type | Hvac Contractor |
- When BuildZoom last verified this license, it had an expiration date of June, 2018. Check the current license status of ML Heating Co Inc with the Ohio Professional License Center
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | HV.19726 |
| Status | Active |
| City | Ohio Professional |
| Type | Hvac Contractor |
- When BuildZoom last verified this license, it had an expiration date of June, 2018. Check the current license status of ML Heating Co Inc with the Ohio Professional License Center
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | HV-0000031939 |
| Status | Active |
| State | Ohio |
| Type | HVAC |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of ML Heating Co Inc 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-0000019726 |
| Status | Active |
| State | Ohio |
| Type | HVAC |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of ML Heating Co Inc with the Ohio Department of Commerce
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HV.31939 |
| 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 ML Heating Co Inc at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HV.19726 |
| 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 ML Heating Co Inc at the Ohio Professional License Center.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
166
Permits
- Building permit records show that ML Heating Co Inc has worked on 166 permitted projects.
ML Heating Co Inc Employees
HM
Hal Mullins
Owner
HM
Hal E Mullins
Owner
HM
Hal Mullins
HM
Hal Mullins Mullins
WM
William R Mullins
WM
William R Mullins Mullins