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HVAC By Alexander

La Crescenta, California

3442 PROSPECT AVENUE, La Crescenta, CA 91214, USA

License checked License #812570 24 yrs experience

Verify this license yourself at the California Contractors State License Board (CSLB).

HVAC By Alexander provides AC Services for homeowners and businesses across California. Air conditioning repair, installation, and seasonal support form the core of its work, and cooling problems often call for quick diagnosis and a technician who arrives prepared. The company also covers the wider comfort needs of a home or commercial building.

About HVAC By Alexander

Service offerings include AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, and Thermostat Services. Technicians check refrigerant levels, inspect electrical connections, clean coils, and test airflow when diagnosing cooling faults. Furnace work involves burner inspection, safety controls, and ignition testing, while ductwork work targets leaks, insulation, and air distribution. Emergency HVAC calls and Maintenance & Tune-up visits round out the list, helping catch small issues before peak seasons arrive.

Serving communities throughout California, the company works with the climate conditions, building requirements, and equipment common across the state. HVAC By Alexander holds California state contractor license #812570 and has been licensed since 2002, giving it more than 24 years in the trade.

People comparing local pros can verify license status through the California Contractors State License Board, review service descriptions, and ask direct questions about scope before booking. Learn more about HVAC By Alexander and other listed contractors on HVAC Service Fast.

State license record

California license #812570

Renewal date passed — confirm status
Issued by
Contractors State License Board (CSLB)
Status
Active as of Aug 4, 2026
First issued
Sep 2002 (24 years)
Renewal was due
Sep 30, 2026
Business type
Sole Owner
County on file
Los Angeles

What the license covers

  • C-20 Warm-Air Heating, Ventilating and Air-Conditioning

From CSLB public license data as of Aug 4, 2026. Licenses change — confirm the current status at the California Contractors State License Board (CSLB).

Frequently Asked Questions

What services does HVAC By Alexander offer?
HVAC By Alexander offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up.
What areas does HVAC By Alexander serve?
HVAC By Alexander serves customers throughout California.
How do I choose a licensed, insured HVAC contractor in California?
When searching for an HVAC contractor near me, confirm that the company holds a current California state license and check its status with the Contractors State License Board. Ask whether it carries liability and workers' compensation insurance, and request a written estimate that describes the full scope of work.
What should I check before hiring an HVAC professional?
Verify the license number, read recent customer reviews from more than one source, and confirm warranty terms and what the quote includes. Ask who will perform the work and whether the job requires permits.
What are signs it is time to call an HVAC professional?
Call a professional if your system blows warm air while set to cool, makes grinding or banging noises, cycles on and off frequently, or shows a sudden rise in energy bills. A gas odor or a carbon monoxide alarm needs immediate attention and an emergency call.

Local market — La Crescenta-Montrose

HVAC pros here

25

Have a website

16%

Cooling demand

1,245

Heating demand

1,569

Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).

Local context for La Crescenta-Montrose

Buying a new AC or heat pump in California

  • California is in the DOE Southwest region: new central air conditioners installed since January 1, 2023 must meet at least 14.3 SEER2 and 11.7 EER2 (13.8 SEER2 and 11.2 EER2 for systems 45,000 BTU/h and larger). Heat pumps must meet 14.3 SEER2 and 7.5 HSPF2 nationwide.
  • Since 2025, new systems are built for lower-impact refrigerants such as R-454B or R-32. Ask which refrigerant a quoted system uses and for its AHRI certificate number, which confirms the matched system’s rated efficiency.

Before you hire HVAC By Alexander

Based on the records we hold for this business.

  • Confirm the license renewal

    The CSLB record we saw on Aug 4, 2026 listed license #812570 with a renewal date of Sep 30, 2026. Most renewals go through on time — check the current status before you sign. Look it up: California Contractors State License Board (CSLB)

  • Ask for proof of insurance

    We have no insurance details on file. Ask for a certificate of general liability and workers' compensation coverage before anyone works in your home.

  • Ask who pulls the permit

    Replacing an AC, furnace, heat pump or water heater usually needs a local permit and inspection. A licensed contractor normally pulls it — ask that the permit is included in the written quote.

  • Ask for local references

    We do not have review data for this business yet. Ask for two or three recent customers near you.

  • California homeowner protection

    California law caps the down payment on a home improvement contract at 10% of the contract price or $1,000, whichever is less. Never pay more up front.

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Where this information comes from

Name, address and phone
State license records · added Aug 4, 2026
California license
CSLB public license data · record date Aug 4, 2026
Profile summary
Written automatically from the records above

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HVAC Service Fast is an independent HVAC directory and is not affiliated with this business. Listing details are compiled from publicly available information and may be incomplete or outdated. We do not endorse or guarantee any provider — please verify licensing and insurance directly. See our Disclaimer.