Updated: Feb 02, 2026
Location and Projects
Address
3741 JOAN AVENUE, Concord, CA, 94521
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John D Hartvickson HVAC/Mechanical Contractor
John D Hartvickson, 3741 Joan Ave, Concord, CA (Owned by: John Dean Hartvickson) holds a Warm Air Heating, Ventilating And Air Conditioning license according to the California license board.
Their BuildZoom score of 98 ranks in the top 16% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John D Hartvickson, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John D Hartvickson Contact Information
Phone Number: (925) 687-1777
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Address: 3741 JOAN AVENUE, Concord, CA 94521
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace furnace 96%afue and air conditioning unit 14 seer
Valuation:
N/A
Permit #:
BIM16-005940
Status:
final
Fee:
$325
Permit Type:
N/A
Building Type:
N/A
Installing additional air conditioner to split the cooling system to single family residence per owner. -- ***climate zone 12 ---- hers verification of duct sealing required per title-24***
Valuation:
N/A
Permit #:
BI385274
Status:
final
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Replace furnace (93% afue) & addition on air conditioning (13 seer); addendum on 9/22/06--run dedicated 1/2-inch gas line (approx 32-ft in length) to 60 000 btu furnace;
Valuation:
$9,000
Permit #:
BP06003441
Status:
final
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
Removal of existing wall furnace - install new wall furnace
Valuation:
$1,100
Permit #:
12-00015
Status:
final
Fee:
$248
Permit Type:
Alteration/repair
Building Type:
N/A
Removel and replace existing furnace with 92% afue furnace. no other changes. per contractor
Valuation:
N/A
Permit #:
BI376127
Status:
final
Fee:
$109
Permit Type:
N/A
Building Type:
N/A
Replace central heating/air **give all tags to larry or mustafa per ljb 9/24/08**
Valuation:
N/A
Permit #:
BI410990
Status:
final
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Change out wall furnace to attic & addition a/c; 1/2-inch gas line approx. 7 feet
Valuation:
$6,000
Permit #:
BP03002317
Status:
final
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Replace wall furnance & install new hvac 93% & a/c- 13 seer all new ducting
Valuation:
$8,600
Permit #:
BP08000588
Status:
final
Fee:
$235
Permit Type:
N/A
Building Type:
N/A
Replace furnace (95% afue) & addition air conditioning (13 seer) & addition 220v circuit for air conditioning
Valuation:
$7,500
Permit #:
BP08001025
Status:
final
Fee:
$159
Permit Type:
N/A
Building Type:
N/A
Replace furnace 93% & 13 seer air conditioning addition on
Valuation:
$6,000
Permit #:
BP09000191
Status:
final
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
Replace furnace and addition air conditioner
Valuation:
N/A
Permit #:
BI408779
Status:
final
Fee:
$117
Permit Type:
N/A
Building Type:
N/A
Floor furnace removel/add wall furnace
Valuation:
$0
Permit #:
BH97003613
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace furnace- 95% & air conditioning 13 seer
Valuation:
$6,500
Permit #:
BP08002237
Status:
final
Fee:
$225
Permit Type:
N/A
Building Type:
N/A
Furnace 80% afue
Valuation:
$1,000
Permit #:
BP11000341
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Replace furnace; new air conditioning (e) circuit
Valuation:
$3,700
Permit #:
BP04002829
Status:
final
Fee:
$74
Permit Type:
N/A
Building Type:
N/A
Gas test for line going to suite b
Valuation:
$200
Permit #:
BP04000126
Status:
final
Fee:
$72
Permit Type:
N/A
Building Type:
N/A
22 x 22 garage addition
Valuation:
$10,000
Permit #:
BP02001137
Status:
canceled
Fee:
$513
Permit Type:
N/A
Building Type:
N/A
Replace furnace & addition air conditioning
Valuation:
$6,500
Permit #:
BP03002012
Status:
final
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Floor furnace to wall furnace
Valuation:
$0
Permit #:
BH94001090
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Furnace change out and addition air conditioning
Valuation:
$0
Permit #:
BH95005832
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
John D Hartvickson License info
Verified License
| License # | 409642 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for John D Hartvickson at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
Bonded
| Bonded Agent | Business Alliance Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
46
Permits
- Building permit records show that John D Hartvickson has worked on 46 permitted projects.
John D Hartvickson Employees
JH
John Dean Hartvickson
Owner