Updated: Apr 27, 2026
Location and Projects
Address
343 GRAND BLVD, Half Moon Bay, CA, 94019
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Colvin Mechanical
Colvin Mechanical, 343 Grand Blvd, Half Moon Bay, CA (Employee: William Allen Colvin) holds a Warm Air Heating, Ventilating And Air Conditioning license and 1 other license according to the California license board.
Their BuildZoom score of 99 ranks in the top 15% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Colvin Mechanical, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Colvin Mechanical Contact Information
Phone Number: (650) 576-2184
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Address: 343 GRAND BLVD, Half Moon Bay, CA 94019
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Wash n dry tenant improvement. replace existing equipment and remodel ada
Valuation:
N/A
Permit #:
BP19-1769
Status:
final
Fee:
$2,550
Permit Type:
Tenant improvement
Building Type:
N/A
#scanned# install new furnace in attic and ducts. 3/4 dedicated pipe from gas meter to furnace
Valuation:
N/A
Permit #:
BLD2018-00658
Status:
final
Fee:
$420
Permit Type:
N/A
Building Type:
N/A
Tear off existing roof and install limited lifetime
Valuation:
N/A
Permit #:
BP19-1761
Status:
final
Fee:
$195
Permit Type:
Re-roof
Building Type:
N/A
#scanned# gas line & meter: install new gas distribution piping for new hot water heater new forced aire furnace & duct work new dryer and oven/range. all in same locations (water heater and furnace in mechanical room crawl space)
Valuation:
$12,000
Permit #:
BLD2013-01767
Status:
final
Fee:
$505
Permit Type:
N/A
Building Type:
N/A
Replaced old furnace with an energy efficient furnace. new location in attic permit revised to relocate furnace in attic and associated ductwork w/electrical lw 4/3/13
Valuation:
$123,625
Permit #:
2013 008304 RS
Status:
final
Fee:
N/A
Permit Type:
Single family
Building Type:
N/A
Remove wall heater and convert space to return air; install 7 ducts, 2 concealed evaporative coils 2 ton condensor on 2 x 3 concrete pad and 30 amp breaker. install new 50-gallon gas water heater in outside utility closet
Valuation:
$6,869
Permit #:
BLD2009-01153
Status:
final
Fee:
$335
Permit Type:
N/A
Building Type:
N/A
Remove & replace 2 furnace using existing location & run 8 new rigid steel (kd) duct runs using existing locations if possible
Valuation:
$0
Permit #:
PM20131218802
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
#scanned# furnace: remove replace furnace. install 95% 60k btu trane 2 stage furnace in same laundry room location. install new ductwork
Valuation:
$8,700
Permit #:
BLD2012-01602
Status:
final
Fee:
$212
Permit Type:
N/A
Building Type:
N/A
Install new upper & lower 80% eff furnace. addition control dampers & ul181 sealant to ducting. no new ducting
Valuation:
$11,000
Permit #:
B30404
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Furnace only 40k 95% same location
Valuation:
N/A
Permit #:
13-1275
Status:
final
Fee:
$149
Permit Type:
Furnace replaceme...
Building Type:
N/A
Same location 80% 60k btu
Valuation:
N/A
Permit #:
13-1063
Status:
final
Fee:
$147
Permit Type:
Furnace replaceme...
Building Type:
N/A
Same location 95% 40k btu
Valuation:
N/A
Permit #:
13-1061
Status:
final
Fee:
$148
Permit Type:
Furnace replaceme...
Building Type:
N/A
Install new furnace and ducts (4) mine 78% afue r-6 insulation in unconditional space setback thermostat
Valuation:
$0
Permit #:
PM20120514584
Status:
COMPLETE
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 1 new furnace
Valuation:
$0
Permit #:
PM20140813200
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Same location 95% 80k btu no exteriors
Valuation:
N/A
Permit #:
13-0425
Status:
final
Fee:
$147
Permit Type:
Furnace replaceme...
Building Type:
N/A
Install new furnace and ducts (4) mine 78% afue r-6 insulation in unconditional space setback thermostat
Valuation:
N/A
Permit #:
PM20120514584
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new 80% afue furnace i n crawl space er home
Valuation:
$0
Permit #:
PM20121029658
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove & replace 2 furnace using existing location & run 8 new rigid steel (kd) duct runs using existing locations if possible
Valuation:
N/A
Permit #:
PM20131218802
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1m; install new furnace and ducting
Valuation:
$0
Permit #:
PMW20130314316
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
#scanned# new 88 000 btu 80% fau replace existing
Valuation:
$1,957
Permit #:
BLD2013-01064
Status:
final
Fee:
$219
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Colvin Mechanical License info
Verified License
| License # | 926859 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Colvin Mechanical at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 926859 |
| Status | Active |
| City | San Carlos |
| Type | Contractor |
- When BuildZoom last verified this license, it had an expiration date of January, 2015. Check the current license status of Colvin Mechanical with the The City of San Carlos, CA
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
43
Permits
- Building permit records show that Colvin Mechanical has worked on 43 permitted projects.
Colvin Mechanical Employees
CM
Colvin Mechanical
Owner
WC
William Allen Colvin
Sole Owner