An Integrated Approach to Heating and Cooling Around The Clock Heating and Air Conditioning Your Climate, CONTROLLED
Delivering more for less "Individual" Air management solutions FOCUSED ON VALUE
SMART. EFFICIENT. ENVIRONMENTALLY CONSCIOUS. Comfort built around today's lifestyle
TRANSPARENCY... What you should know before you buy Let's CLEAR the AIR about choosing a residential air solution learn more
BREATHE...
The environment
and your house as an ecosystem
learn more
Watch “Your Climate, CONTROLLED

Your Climate, CONTROLLED

Around the Clock Heating and Air Conditioning Solutions

Integrated Air Management specialists serving all of Los Angeles, Pasadena, the San Fernando and Santa Clarita Valleys as well as Ventura County CA for nearly 50 years.

Established in 1967, Around the Clock Heating and Air Conditioning is a licensed, bonded, and insured Lennox Premier Dealer with facilities in Los Angeles and North Hollywood, CA. Around the Clock offers a full complement of residential air conditioning and heating services including repair, preventative maintenance as well as turnkey installations of new systems throughout Los Angeles, Sherman Oaks, Encino, Studio City, Northridge, Valley Village, Chatsworth, Woodland Hills, Calabasas, West Hills, Thousand Oaks, West Los Angeles, Hancock Park, Pasadena, San Marino, Santa Clarita Valley, and Ventura county CA.

Read more >

Individualized solutions that fit your specific needs and budget

From high–efficiency heating and A/C systems to zone control, Around the Clock Heating and Air Conditioning can custom design the individualized solution that fits your specific residential comfort needs to weather the extreme heat and cold temperature swings that are characteristic of Los Angeles winters and the San Fernando Valley summers. Call us for your next service or for a no obligation FREE Air Quality | Home Energy Audit!

The best product at the best price

As a Lennox Premier Dealer the Around the Clock mission is to offer customers VALUE. Our philosophy is simple: provide the best heating and cooling product at the most competitive price possible in Southern California. Call us, contact us online, or explore the ATC HEATING AND COOLING SOLUTIONS CENTERTM and use our interactive virtual estimator tool to get an idea of what replacing a system might cost.

Los Angeles Air Conditioning Services

Around the Clock Heating and Air Conditioning offers RAPID RESPONSE emergency air conditioning repair as well as preventative maintenance + tune–up services designed to extend the life of your A/C system. In addition to servicing the complete line of Lennox products, Around The Clock Heating and Air Conditioning specialists service a broad range of other HVAC brands including:

Read more >

Los Angeles Heating Services

Around the Clock Heating and Air Conditioning offers a wide range of heating repair and maintenance services throughout Los Angeles, Pasadena, the an Fernando and Santa Clarita Valleys as well as Ventura County CA. We offer emergency service, routine preventive maintenance and annual tune–ups.

Lower Energy Bills
through Better Performance

The key to obtaining the highest efficiency levels from your home comfort systems is through scheduled professional preventive maintenance. If you are interested in lowering your energy bills while also reducing your carbon footprint call us or contact us online. Around the Clock Heating and Air conditioning has the know-how, the tools and the technology to make your home measurably more energy efficient.

“Individualized” Heating and Cooling Solutions for Los Angeles, Pasadena, San Fernando Valley, Santa Clarita Valley and Ventura County CA


Los Angeles Air Conditioning Installation and Replacement


One size DOES NOT fit all

Every residence is unique, and so is its air management solution. Around the Clock Heating and Air Conditioning has earned a reputation for excellence since the late 60’s by providing individualized engineered solutions and superior service to Los Angeles, the San Fernando Valley, Santa Clarita Valley and Ventura County CA residents.

Read more >


Special Touches

The Around the Clock Heating and Air Conditioning Team will treat your home like a museum. Our highly skilled AIR MANAGEMENT ENGINEERS not only wear full protective gear when installing a new system, but ensure that your entire living space environment and floors are covered for maximum protection. Around the Clock Heating and Air Conditioning installs only Lennox, the best brand on the market throughout the Los Angeles area.

Read more >

Los Angeles Heating Installation and Replacement

The greater Los Angeles area is essentially reclaimed desert, as such it’s prone to the dramatic temperature variances characteristic of its native topography and climate.
Although warm and temperate for many months out of the year, a furnace is no less important than a cooling system in Southern California. The “bite” of winter may not be as unforgiving as the scorching heat of summer and fall, but it can still make for some VERY cold nights. When you call Around the Clock Heating and Air Conditioning, you can count on nothing short of an exceptional custom solution for your heating needs for those critical nights and days when you need it.

Read more >

Indoor Air Quality and PURIFICATION Products & Services in Los Angeles, San Fernando Valley and Ventura CA

How’s the air you’re breathing?

Did you know that the air in your home is often more polluted than the air outdoors? If you are concerned about the air quality inside your home, call Around the Clock Heating and Air Conditioning and ask for a complimentary, Air Quality| Home Energy Audit.

Read more >

The Around The Clock Blog

It is essential that your heat pump cools properly during the hot summer months if you want to maintain acceptable comfort levels in your home...
Read More

These vacation tips can help safeguard your home, especially its cooling system, since it’s largely responsible for your summertime comfort and the health...
Read More

If you plan on enjoying a comfortable home environment during the summer, having an air conditioning system that fits the needs of your home is a must...
Read More

If you plan on enjoying a comfortable home environment during the summer, having an air conditioning system that fits the needs of your home is a must...
Read More