Updated: Dec 11, 2025
Location and Projects
Address
P O BOX 1257, Oakland, CA, 94604
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Dyna Therm HVAC/Mechanical Contractor
Dyna Therm at P O BOX 1257, Oakland, CA 94604, held a HVAC/Mechanical Contractor license (#807462) with the California contractors license board with an expiration date of 05-31-2022. We last verified the license was expired on 12-10-2025.
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 336,931 California 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.
Dyna Therm Contact Information
Phone Number: (510) 436-5000
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Address: P O BOX 1257, Oakland, CA 94604
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This is a sample of this contractor's permits. Click here to access their complete permit history.
(scope fee): unit a: replace direct vent heater like for like same location (mechanical)
Valuation:
$3,000
Permit #:
M20-0022
Status:
final
Fee:
$400
Permit Type:
N/A
Building Type:
N/A
Relocate 60k gas furnance from garage closet to attic extend gas furance from garage closet to attic extend gas & electrical addition new flue thru roof enlarge return duct. (plumbing/elec)
Valuation:
$3,875
Permit #:
CB16-0313
Status:
final
Fee:
$329
Permit Type:
N/A
Building Type:
N/A
Replace furnace like for like (15k btu's)
Valuation:
$2,500
Permit #:
M15-0045
Status:
final
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
Replace 70k furnance like for like
Valuation:
$0
Permit #:
B2015-04112
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replacing 60k furnace like for like
Valuation:
$0
Permit #:
B2014-04969
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing heater on the first floor like for like (40k)
Valuation:
$2,500
Permit #:
M13-0142
Status:
final
Fee:
$250
Permit Type:
N/A
Building Type:
N/A
Permit value$5.47k install fau in different location
Valuation:
N/A
Permit #:
BLD2014-01836
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 90 k furnace like for like
Valuation:
$2,500
Permit #:
M14-0046
Status:
final
Fee:
$169
Permit Type:
N/A
Building Type:
N/A
Replace (e) furnace at same location
Valuation:
$9,100
Permit #:
BLD2012-01780
Status:
final
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Remove two wall heaters and install one central furnace in in garage
Valuation:
N/A
Permit #:
BLD2011-00264
Status:
FIN
Fee:
$255
Permit Type:
N/A
Building Type:
N/A
Addition 4ton (48, 000btu) air conditioning condenser to existing central heat system
Valuation:
$5,900
Permit #:
MEC2005-00122
Status:
final
Fee:
$229
Permit Type:
N/A
Building Type:
N/A
Replace furnace inside utility closet
Valuation:
$2,875
Permit #:
BLD2011-00263
Status:
final
Fee:
$293
Permit Type:
N/A
Building Type:
N/A
Remove floor furnace & install 60k btu cental heating system
Valuation:
N/A
Permit #:
RM1000972
Status:
final
Fee:
$186
Permit Type:
N/A
Building Type:
N/A
Replace ceiling heater with new furnace/duct in (e) hair salon
Valuation:
N/A
Permit #:
05000-00000-00220
Status:
applied
Fee:
$204
Permit Type:
N/A
Building Type:
N/A
Replace furnace like for like
Valuation:
N/A
Permit #:
RM1002166
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
N/A
Permit value$2.88k replace furnace inside utility closet
Valuation:
N/A
Permit #:
BLD2011-00263
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
R/r furnace with like
Valuation:
$3,350
Permit #:
BLD2010-01492
Status:
final
Fee:
$205
Permit Type:
N/A
Building Type:
N/A
90k furnace gas replacement situated in garage
Valuation:
$3,300
Permit #:
MEC2005-00105
Status:
Finaled
Fee:
$164
Permit Type:
N/A
Building Type:
N/A
Replace existing furnace 80k
Valuation:
N/A
Permit #:
RM0301876
Status:
final
Fee:
$107
Permit Type:
N/A
Building Type:
N/A
Replacing wall heater
Valuation:
$0
Permit #:
BI-2003-6410
Status:
final
Fee:
$66
Permit Type:
N/A
Building Type:
N/A
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Dyna Therm License info
Inactive License
| License # | 807462 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, 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 Dyna Therm at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Dyna Therm, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
26
Permits
- Building permit records show that Dyna Therm has worked on 26 permitted projects.
Dyna Therm Employees
DR
David James Rowswell
Sole Owner