About Our Shop

LTJ Heating & Air Conditioning has been in the business for over 22 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to  make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal! 


Commercial HVAC Sales & Service

Residential HVAC Sales & Service

Industrial HVAC Sales & Service

Zone Systems

Duct Replacement


Indoor Air Quality Solutions

Preventative Maintenance Agreements

Thermostats & Controls

Free Estimates



Air Conditioning Sales, Installation, & Repairs

In the tough enviroment of the Antelope Valley , a high efficiency air conditioning system will keep your indoor climate comfortable while keeping your utility costs low. If you are happy with the system you already have we offer routine maintenance agreements that can help extend your current systems life. Our professionally trained technicians will handle all your service needs from warranty work, repairs, and emergency service.

Heating System Sales, Installation, & Repairs

No other system plays a larger role in your comfort than your heating system. We specialize in cost effective high efficiency heating systems. we also provide annual maintenance agreements and energy audits of your heating system to evaluate its efficiency.

Preventative Maintenance Agreements

To save on utility bills and service call we urge you to take a preventive approach to your heating and cooling by scheduling regular maintenance for your HVAC equipment. Properly maintained equipment functions more efficiently and last longer which saves you money!