Updated: May 20, 2026
Location and Projects
Address
97 WRIGHT BROTHERS AVE., Livermore, CA, 94551
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Black Diamond Mechanical
Black Diamond Mechanical at 97 WRIGHT BROTHERS AVE., Livermore, CA 94551, held a HVAC/Mechanical Contractor license (#920303) with the California contractors license board with an expiration date of 08-31-2028. We last verified the license was inactive on 05-19-2026.
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 bidding system to be easily matched to qualified, licensed professionals in your area.
Black Diamond Mechanical Contact Information
Phone Number: (925) 245-9800
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Address: 97 WRIGHT BROTHERS AVE., Livermore, CA 94551
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Building Permits by Black Diamond Mechanical
This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of a new 50 gallon power vent water heater. water heater was installed in exsisting location. there was a new 15 amp electrical circuit ran from electrical panel to new water heater. water heater is a state premier pulse water heater
Valuation:
$3,300
Permit #:
PW12-0023
Status:
final
Fee:
$124
Permit Type:
N/A
Building Type:
N/A
Changed out like for like 30, 000 btu direct vent wall heater. wall heater installed in exsisting location attached to exsisting gas pipe. mounted a new thermostat in exsisting location of old one
Valuation:
$2,000
Permit #:
MW12-0010
Status:
final
Fee:
$160
Permit Type:
N/A
Building Type:
N/A
Replace tank water heater with new 20000 btu tankless water heater in mechanical closet; 1 dedicated gas line existing
Valuation:
$500
Permit #:
P14-0108
Status:
final
Fee:
$124
Permit Type:
N/A
Building Type:
N/A
Install 6 earthquake shut off valves at gas meters manufacture: little fire fighter 3/4 model: agv-75 horizontal
Valuation:
$1,500
Permit #:
P13-0485
Status:
final
Fee:
$386
Permit Type:
N/A
Building Type:
N/A
Replace like for like furnace. installation of one new 60k btu 97.7% afue. will also need to repair 2 supply ducts as well as the return duct
Valuation:
$5,500
Permit #:
MW13-0058
Status:
final
Fee:
$181
Permit Type:
N/A
Building Type:
N/A
Unit #k - replace two existing heaters - one floor furnace & one direct vent furance in living room (like for like)
Valuation:
$2,500
Permit #:
M14-0031
Status:
final
Fee:
$169
Permit Type:
N/A
Building Type:
N/A
Replace existing wall furnace with new 35k btu wall furnace (like for like) woodstock approval letter on file
Valuation:
$2,500
Permit #:
M14-0012
Status:
final
Fee:
$169
Permit Type:
N/A
Building Type:
N/A
Install 5 earthquake shut off valves ast gas meter manufacture: little fire fighter 3/4 model: agv-75 horizontal (1909 santa clara ave #a b c d & house)
Valuation:
$900
Permit #:
P11-0817
Status:
final
Fee:
$262
Permit Type:
N/A
Building Type:
N/A
Install 4 earthqake shut off valves at gas meter manufacture: little fire fighter 3/4 model: agv-75 horizontal (1911 santa clara ave #a b c & d)
Valuation:
$600
Permit #:
P11-0815
Status:
final
Fee:
$215
Permit Type:
N/A
Building Type:
N/A
Install 3 earthquake shut off valves at gas meters: little fire fighter 3/4 model: agv-75 horizontal (for unit a b & c/d)
Valuation:
$800
Permit #:
P13-0086
Status:
final
Fee:
$183
Permit Type:
N/A
Building Type:
N/A
Installation of new 100 gallon water heater and storage tank located in mechanical room. like for li
Valuation:
$0
Permit #:
BI-2014-1230
Status:
final
Fee:
$280
Permit Type:
N/A
Building Type:
N/A
Install earthquake shut off valve at gas meter - manufacture: little fire fighter model: agv-75 horizontal 3/4 valve
Valuation:
$500
Permit #:
P13-0014
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Install 5 shut off valves at gas meters manufacture: little fire fighter 3/4 model: agv75 horizontal (a b c d & common area)
Valuation:
$800
Permit #:
PW12-0010
Status:
final
Fee:
$247
Permit Type:
N/A
Building Type:
N/A
(unit #a/#b/#c) installation of new gas pipe from meter to house to (3) new direct gas vent furnaces (unit #a:30, 000 btu's/unit #b:20, 000 btu's/unit #c:20, 000 btu's)
Valuation:
$6,200
Permit #:
M10-0027
Status:
final
Fee:
$408
Permit Type:
N/A
Building Type:
N/A
Removal of one 4 ton 80, 000 btu up flow furnace located in basement. installation of new 80% afue payne 80, 000 btu furance in exsisting location
Valuation:
$1,900
Permit #:
MW11-0033
Status:
final
Fee:
$162
Permit Type:
N/A
Building Type:
N/A
Installation of new furnace and duct work. furnace will be installed in basement with all new duct work to all rooms
Valuation:
$7,925
Permit #:
MW12-0013
Status:
final
Fee:
$182
Permit Type:
N/A
Building Type:
N/A
Installation of (3) shampoo bowls only (plumbing)
Valuation:
$8,500
Permit #:
P14-0113
Status:
final
Fee:
$308
Permit Type:
N/A
Building Type:
N/A
(1 meter:2116 & 2118 clinton ave) install earthquake shut off valve at gas meter - manufacture: little fire fighter model: agv-75 horizontal 3/4 valve
Valuation:
$500
Permit #:
P10-0036
Status:
final
Fee:
$99
Permit Type:
N/A
Building Type:
N/A
Code enforcement x13-0057 ss - changed out 35, 000 btu wall heater like for like
Valuation:
$1,500
Permit #:
MW13-0024
Status:
final
Fee:
$793
Permit Type:
N/A
Building Type:
N/A
Installation of new hvac ductwork and equipment
Valuation:
$0
Permit #:
PM20140710253
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Black Diamond Mechanical License info
Inactive License
| License # | 920303 |
| 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 Black Diamond Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Black Diamond Mechanical, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $12,500 |
Insured
| Workers Comp Provider | Middlesex Insurance Company |
51
Permits
- Building permit records show that Black Diamond Mechanical has worked on 51 permitted projects.
Black Diamond Mechanical Employees
RJ
Robert Anthony Lopez Jr
Sole Owner