We are more than happy to perform heating system and AC repair on your automobile. Our certified mechanics have over 70 years of combined experience and are well-equipped to work on any type of vehicle.

No matter if it’s hot or cold outside, your air conditioning does a lot to keep you safe and comfortable. The AC cools you down in the summer, but it also powers your defroster so you can see in the winter conditions.

What Can I Expect During an Air Conditioning System Inspection?

The experienced mechanics at Ray’s OK will:

  • Test your air conditioning system for leaks

  • Check the interior temperature of the cabin

  • Restore proper refrigerant and lubrication levels

  • Fix interior cooling ability

How Often Should I Get My Air Conditioning System Checked?

We recommend you get your AC system checked once a year. Over time, your AC system will lose refrigerant, which is why it’s a good idea for annual inspection. However, if you ever notice that your air conditioning is not working properly, then it’s a good idea to get it checked sooner rather than later in case you need AC repair.

Heating System Service and Repair

The only thing worse than sweating during a hot drive is shivering through a freezing cold one. The heating system is another important part of your vehicle, and when it’s broken you can definitely experience some discomfort.

It’s pretty easy to tell if your heater is not working … if it can’t blow warm or hot air, then there’s a problem. Other signs that the heating system is broken:

  • A weird smell coming from the vents

  • The windows/windshield fog up

  • Antifreeze is leaking in you car’s interior

Any of these signs means you might have a broken heating system. It’s best to get it repaired quickly so the repairs don’t become too many to deal with at once. Car repairs can be costly if pushed off for too long.  

Contact Ray’s OK Service to book your next heating and air conditioning repair appointment!

When you keep your car in top running condition, you will save time and money in the long run. A well-maintained vehicle provides safe travel for you and your family, giving you security and peace of mind.


Welcome to Ray’s OK Service. Conveniently located in Greenfield, Wisconsin on Loomis Road at I-894. We specialize in the maintenance and repair of foreign and domestic vehicles. Ray’s OK Service originally opened in 1972 by Ray Kurian Sr. and sons.  As a family, they built a thriving auto repair business.  A company that prides itself on skilled automotive repair services, up to date technology, fair honest pricing, and cordial customer service. Now serving 3rd Generation Customers!!

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