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L T J Designs

No ratings collected yet Los Angeles, California

5020 W OLYMPIC BLVD, Los Angeles, CA 90019, USA

License checked License #862727 21 yrs experience

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

(323) 904-9292
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Los Angeles is a city of sharp contrasts for heating and cooling. Summer heat in the valleys can push air conditioners hard for weeks at a time, while coastal neighborhoods deal with marine air that wears on equipment and cool nights that call for reliable furnaces. Homeowners and property managers here need a contractor who understands those patterns. L T J Designs is an HVAC business serving Los Angeles, and it holds California state contractor license #862727, issued through the state contractor registry. The company has been licensed since 2005, giving it more than 21 years of experience in the trade.

Local market — Los Angeles

HVAC pros here

1,329

Have a website

27%

Cooling demand

1,247

Heating demand

1,083

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

Services Offered

AC Services in Los Angeles Heating Services in Los Angeles Ductwork Services in Los Angeles Heat Pumps in Los Angeles Furnace Services in Los Angeles Thermostat Services in Los Angeles Emergency HVAC in Los Angeles Maintenance & Tune-up in Los Angeles

Service Area

Los Angeles, California All of California

Location

About L T J Designs

L T J Designs handles residential and commercial heating and cooling needs across a broad range of work. Its AC Services cover diagnosis, repair, and replacement of cooling systems, and its Heating Services and Furnace Services address heat output, ignition problems, and safe combustion checks. Heat Pumps, Ductwork Services, and Thermostat Services round out the system-level work, from sealing leaky ducts to programming controls that keep runtimes efficient. For urgent breakdowns, Emergency HVAC response is available, and Maintenance & Tune-up visits keep equipment running through peak seasons.

The company's work is centered on Los Angeles, where local conditions shape nearly every job. Older buildings often have ductwork that was never designed for modern equipment, and many homes sit in neighborhoods where system sizing must account for sun exposure, wind, and humidity. Knowing these details helps technicians recommend repairs that last rather than temporary fixes.

If you are comparing local HVAC pros, ask about license status, the scope of each proposed repair, and how the company handles follow-up. Clear answers to those questions often say more than any advertisement.

Frequently Asked Questions

What services does L T J Designs offer?
L T J Designs offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up.
What areas does L T J Designs serve?
L T J Designs serves Los Angeles, California. Confirm directly with the company whether a specific address falls within its current service area.
How do I choose a licensed, insured HVAC contractor in Los Angeles?
Look up the contractor's license number on the California Contractors State License Board website and ask for proof of liability and workers' compensation insurance. Compare written estimates from several local contractors before deciding.
What should I check before hiring an HVAC professional?
Confirm the license is active, ask for a written scope of work and price, and request references or reviews from recent local customers. Make sure the warranty terms on parts and labor are clearly stated.
What are signs it is time to call an HVAC professional?
Call a professional if your system short-cycles, makes grinding or banging noises, blows warm air when set to cool, or your energy bills rise without explanation. Unusual odors, frequent breaker trips, or uneven temperatures between rooms also warrant an inspection.

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