When you are ready to buy an air conditioning or heating system or it is time to upgrade your old system, you can enjoy the services of our highly skilled technicians as they install your new system. Our professional and friendly technicians are also able to come to your service when you require maintenance or repair on your AC or heating system.

We have been repairing air conditioning systems for our customers in Southern California for the past 25 years. Our highly trained technicians can work on any brand and any type of system. If you are worried that your system may need replacement, let one of our experienced technicians come and diagnose the problem. If your system simply needs repair, it will save you quite a bit of money to repair it instead of replacing it.

Highlights and features

Commercial HVAC, Maintenance Services, Refrigeration Services, Repair Services, Heating Services, Replacement Services, Residential HVAC, Systems & Equipment, Installation Services

Associations and certifications

Building Performance Institute
North American Technician Excellence

Update Share

AC Installation

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If you have finally decided you need to install an air conditioning system, you need the professionals at ALLSTAR to handle the installation of your new system. Serving Southern California for over 25 years, ALLSTAR is your premier source for air conditioning.

AC Maintenance

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Just like your car needs proper maintenance such as regular oil changes to keep it at peak performance, your air conditioning system requires regular maintenance for the best results. In addition, having maintenance done prior to the start of the cooling season can help avoid problems with the system during the hot weather when you really need it working properly.

AC Repair

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If your system is less than seven years old and is acting up, it may simply need to be repaired. Our professional and friendly technicians are able to come to your service when you require maintenance or repair on your AC or heating system.

Heating

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When you need a new furnace or you are having issues with your heating system, ALLSTAR is right here to get things going for you again. We have been Southern California's premier heating system company for over 25 years, and we have what it takes to meet your needs.

Phil Bianchi

Jun 14, 2019

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Allstar = Five Star. Mark De Gaye is client focussed, prompt and provides efficient no bull value for money service. Would highly recommend this company.

George Xu

Apr 28, 2018

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Mark has been doing my work since 2009. Serviced my local rental properties and my commercial tenants. Great service and fair rates. No complaints from clients makes my job easy. Studio Realty, Morley

Mark De Gaye

Jan 06, 2018

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Anthony Hancock is not a client but a troll as never done business with him.30 Years industry experience, self employed servicing the community in business for over 12 years with all servicing, maintenance, swap overs and installations of residential and light commercial air conditioning and refrigeration systems. You won't find anyone cooler than ALLSTAR!

Bhavesh Bhalsod

Dec 27, 2017

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Called Mark this morning with an issue with our Daikin ducted system. He was here by lunchtime and had the issue resolved shortly therafter. Prompt, courteous, knowledgable and fairly priced. Would certainly reccommend.