Updated: Jun 12, 2026
Location and Projects
Address
3442 PROSPECT AVENUE, La Crescenta, CA, 91214
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HVAC by Alexander
HVAC by Alexander, 3442 Prospect Ave, La Crescenta, CA (Owned by: Alexander Derzakharian) 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 HVAC by Alexander, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
HVAC by Alexander Contact Information
Phone Number: (818) 335-8019
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Address: 3442 PROSPECT AVENUE, La Crescenta, CA 91214
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Four fau up to 100, 000 btu four evaporative system 7 single duct 2 new relocation or repair of each fire dpr or ceiling radiation dpr one garage exhaust 4 multi-family itchen up to 1 bathroom 8 addition bathrooms
Valuation:
N/A
Permit #:
BM1619816
Status:
final
Fee:
N/A
Permit Type:
Apartment/condo
Building Type:
N/A
2 ton rooftop air conditioning unit for existing house
Valuation:
N/A
Permit #:
20044-20000-08502
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Change out/replacement of existing air conditioning and furnance one fau up to 100, 000 and one up to 3 hp
Valuation:
N/A
Permit #:
BM1809932
Status:
final
Fee:
N/A
Permit Type:
Apartment/condo
Building Type:
N/A
Change out/replacement of existing air conditioning and furnance one fau up to 100, 000 and one up to 3 hp
Valuation:
N/A
Permit #:
BM1809931
Status:
final
Fee:
N/A
Permit Type:
Apartment/condo
Building Type:
N/A
Change out/replacement of existing air conditioning and furnance one fau up to 100, 000 and one up to 3 hp
Valuation:
N/A
Permit #:
BM1809930
Status:
final
Fee:
N/A
Permit Type:
Apartment/condo
Building Type:
N/A
Change out/replacement of existing air conditioning and furnance one fau up to 100, 000 and one up to 3 hp
Valuation:
N/A
Permit #:
BM1809929
Status:
final
Fee:
N/A
Permit Type:
Apartment/condo
Building Type:
N/A
Install (2) new rooftop air conditioning package units and duct work
Valuation:
N/A
Permit #:
18044-20000-11105
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
R/r air conditioning and heating systems
Valuation:
N/A
Permit #:
BM1824746
Status:
final
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
1 fau up to 100, 000 btu 1 up to and including 3hp or 36m btu/h. **supplemental 09/01/2015: 2 single duct vent fan**
Valuation:
N/A
Permit #:
BM1520580
Status:
final
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
1 fau up to 100, 000 1 air conditioning 3hp to 15hp backyard 1 electrical air conditioning 1 connection of equipment to a gas system
Valuation:
N/A
Permit #:
BM1419637
Status:
final
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
One fau up to 100, 000 btu and one 3-15 hp 4 ton split air conditioning system
Valuation:
N/A
Permit #:
BM1523397
Status:
final
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
1 air handler and 1 compressor 3 1/2 ton 1 heating appliance under 100000 b.t.u 1 single duct vent fan
Valuation:
N/A
Permit #:
BM1309239
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
One up to 3 hp addition air conditioning to existing forced air system
Valuation:
N/A
Permit #:
BM1621369
Status:
final
Fee:
N/A
Permit Type:
Dwelling/duplex
Building Type:
N/A
1-fau up to 100, 000 btu (1) appliance vent (1) 3-15 h.p (1) electrical air conditioning. (1) connection to gas system
Valuation:
N/A
Permit #:
BM1113455
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Install walk-in cooler comply with department order effective date 09/20/2004. permit will expire 30 days from issuance date. all permits shall be for the same time period limitation
Valuation:
N/A
Permit #:
06044-70000-05846
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Gas package unit air conditioning system
Valuation:
N/A
Permit #:
16044-20000-07372
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
1 air handler and 1 compressor 3 1/2 ton 1 heating appliance under 100000 b.t.u and 1 single duct vent fan
Valuation:
N/A
Permit #:
BM1309237
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
1 air handler and 1 compressor 3 1/2 ton 1 heating appliance under 100000 b.t.u and 1 single duct vent fan
Valuation:
N/A
Permit #:
BM1309234
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
1 air handler and 1 compressor 3 1/2 ton 1 fau under 100000 b.t.u 1 single duct vent fan
Valuation:
N/A
Permit #:
BM1309233
Status:
final
Fee:
N/A
Permit Type:
Apartment/condo
Building Type:
N/A
Supplemental permit to change work description to replace split system and include fau
Valuation:
N/A
Permit #:
12044-20001-09595
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
HVAC by Alexander License info
Verified License
| License # | 812570 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for HVAC by Alexander 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 | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
51
Permits
- Building permit records show that HVAC by Alexander has worked on 51 permitted projects.
HVAC by Alexander Employees
AD
Alexander Derzakharian
Sole Owner
AD
Alexander Derzakharian
Owner