Updated: Apr 10, 2026
Location and Projects
Address
1993 SEAL WAY, Discovery Bay, CA, 94505
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J T Gaddis Heating & Air
J T Gaddis Heating & Air, 1993 Seal Way, Discovery Bay, CA (Employee: Jeffrey Todd Gaddis) holds a Warm Air Heating, Ventilating And Air Conditioning license according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring J T Gaddis Heating & Air, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
J T Gaddis Heating & Air Contact Information
Phone Number: (925) 580-5817
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Address: 1993 SEAL WAY, Discovery Bay, CA 94505
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J T Gaddis Heating & Air Discovery Bay
Quality
95
78th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
J T Gaddis Heating & Air has a BuildZoom score of 95, which places them above 78% of 336,931 contractors in California.
Activity
|
1 project
|
2023 |
Our building permit records indicate that J T Gaddis Heating & Air has worked on at least
1.0 project 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-$20k |
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 J T Gaddis Heating & Air
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replae existing furnace & air conditioning with new furnace & air conditioning
Valuation:
$10,800
Permit #:
B23-4205
Status:
final
Fee:
$242
Permit Type:
N/A
Building Type:
N/A
Construct 427 sq ft of additions to residence construct a 162 sq ft garage addition a 25 sq ft covered porch construct (2) pergola's (112 sq ft) and a 2710 sq ft interior remodel addition two outdoor gas outlets for fireplace & bbq and two outdoor electrical outlets for fountain & bbq *see notes
Valuation:
$400,000
Permit #:
12080109
Status:
Closed
Fee:
$7,148
Permit Type:
Single family dwe...
Building Type:
N/A
Remove and replace furnace coil and air conditioning unit - like for like (80% afue 14 seer)
Valuation:
$8,000
Permit #:
BLDG-2015-01291
Status:
final
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
Vrf heat pump system 6 heads-ductless 5 ceiling heads - 1 high wall
Valuation:
N/A
Permit #:
PM20190805153
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 3 fau with 80% afue. replace flue to au doublewall. addition 2ea duct run addition exisitn ducting asbetos
Valuation:
$0
Permit #:
PM20130627010
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition of new garage, family room, master bedroom and bathroom. remodel kitchen and laundry room.
Valuation:
$0
Permit #:
RM9700351
Status:
Final
Fee:
$153
Permit Type:
N/A
Building Type:
N/A
Replace furnace 80% afue and duct sealing
Valuation:
N/A
Permit #:
BIM12-002930
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
Replace 4 125k btu fau systems in common area - mechanical room
Valuation:
$0
Permit #:
B2008-03683
Status:
Closed Expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing gas furnace gas flue dryer vent - hood vent - bathroom fan replace air ducts
Valuation:
N/A
Permit #:
478088
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace furnace
Valuation:
N/A
Permit #:
F110089
Status:
final
Fee:
$131
Permit Type:
Asfr
Building Type:
N/A
Forced air heating - gas flues bathroom fan vent dryer vent
Valuation:
N/A
Permit #:
390191
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Forced air heater gas flues dryer vent bathroom fan vent
Valuation:
N/A
Permit #:
390189
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Forced air heating gas flues dryer vent fan vent bathroom
Valuation:
N/A
Permit #:
390188
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Forced air heater gas flues dryer vent bathroom fan vent
Valuation:
N/A
Permit #:
390187
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Forced air heating gas flue dryer vetn bathroom fan vent
Valuation:
N/A
Permit #:
390190
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Hvac replace furnace
Valuation:
N/A
Permit #:
F110089
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2 each gas flue vents type b vent only
Valuation:
N/A
Permit #:
428571
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation heating systems forced air
Valuation:
N/A
Permit #:
370071
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Gas flue pipe forced air gas furnace
Valuation:
N/A
Permit #:
407179
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Gas flue pipe forced air gas furnace
Valuation:
N/A
Permit #:
407178
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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J T Gaddis Heating & Air Reviews
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Verified License
BuildZoom confirmed this contractor's license
J T Gaddis Heating & Air License info
Verified License
| License # | 727515 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for J T Gaddis Heating & Air at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
28
Permits
- Building permit records show that J T Gaddis Heating & Air has worked on 28 permitted projects.
J T Gaddis Heating & Air Employees
JG
Jeffrey Todd Gaddis
Sole Owner