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There are only so many things that can go wrong with an air conditioner. Two of the most common issues involve the air handler and evaporator coil. At All Pro Plumbing, Heating, Air & Electrical in Ontario, CA, we specialize in the installation and replacement of these components. If your AC is not working properly, call us right away for a quick assessment and we will provide comprehensive repair and installation options that work for you.

Need air handler or evaporator coil services in San Bernardino County? Contact us at (909) 253-0664 to find out how we can help!

What Is An Air Handler?

Your air conditioner has many parts. The air handler is typically the gray metal box that sits outside your home. This component is one of the most important parts of your AC system because it is home to all the major cooling parts, blower motors, fan belts, and other vital parts of the system. If there is a problem with the AC, chances are, it has something to do with the air handler.

If the air handler fails or the outside case becomes damaged, it’s important to get it fixed or replaced right away. A cracked or dented air handler requires immediate new air handler installation because the physical damage could lead to contamination and a snowball effect of problems with the system.

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Special Offer


BOGO 2-in-1 Special:

AC & Furnace Safety Check!

Cannot be combined with other offers. Valid from Dec 28, 2022 – Dec 31, 2023



Cannot be combined with other offers. Valid from Dec 28, 2022 – Dec 31, 2023

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All Pro Smart Membership

Experience Peace of Mind, Discounts, & More Even the best HVAC, plumbing and electrical systems need recurring maintenance to keep them running perfectly. With the All Pro Smart Membership, you can rest assured that your home’s HVAC, plumbing and electrical systems won’t fail – especially when you need them the most!

  • Enjoy all member benefits for only $19.99/month!
  • Four Tune Ups Per Year. Value: $556.
  • No Breakdown Guarantee
  • 100% Money Back Guarantee
  • No Dispatch Fees. Value: $139
  • 15% Off Service Repairs
  • Priority Service. Value: $139
  • Credit Towards Investment. Value: Up to $500
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We Proudly Offer The Following AC Services To
Homes & Businesses In Ontario:

  • Air Handler & Evaporator Coil Services
  • Makeup Air Units (MUA)
  • Duct Cleaning & Repair
  • AC Maintenance
  • AC Repairs
  • AC Installation & Replacement
  • Ductless Mini Split AC Systems
  • Emergency AC Services


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Since 1991

Top-Rated Plumbing, HVAC & Electrical Services

We remain steadfast in our commitment to providing outstanding customer service and tailoring our solutions to meet our customer’s unique circumstances. We take the time to understand your specific needs, as well as your budget, working closely with you to ensure that your problem is resolved efficiently and effectively the first time.

It’s because of our care for our customers that we have earned the 2020 Best of HomeAdvisor award and been awarded by as one of the best plumbers in the area.

Personalized Options

  • Community Service

  • Fast Response Time

  • Problem Solved the First Time

  • Personalized Option

  • FREE Estimates*

  • Our Core Values

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Thousands of Happy Customers

This is a great company. I had a water heater installed and never had a better service person. He was informative and did a wonderful job. Very prompt and efficient.


I received an email from All Pro saying my water heater was due for an annual maintenance. I gave them a call thinking I would be scheduling an appointment for a week or two in the future. To my surprise they said they would send a technician right away. Wow, that’s service! He arrived and introduced himself and told me about what he planned to do. It was a pleasure working with him. He was friendly, polite, and terrific with dogs. It was a hot day, a very hot day, and my water heater is in the garage. I felt rather guilty about that but he didn’t complain. He took care of everything and left the area neat and tidy. He even helped me move a couple of the heavier boxes back into place. I’ve used All-Pro for all my plumbing work. They are always timely, helpful and get the job done right.

-Elizabeth B.

Thank you for the prompt and professional service. When our A/C stopped working yesterday, I assumed that the 17-year-old compressor was just going to need to be replaced. I looked at reviews for several companies and called some of them. The smaller companies had a wait of a week or more, and the bigger companies seemed to be money-hungry. The reviews online for most companies were scary….horror stories of $25,000 quotes, etc. Since it’s August, I was out of options, resigned to the fact that thousands of dollars would be spent, and in a time crunch, so I called two of the bigger ones, including All-Pro. Since your company was able to send someone the next day, I went with it. (Well, ok, I had another company scheduled in the afternoon so I could compare the two ridiculous quotes…..I did call them and politely cancel..). Your very professional dispatchers called us this morning to let us know that they could send someone even earlier. Yay! The tech was very professional, polite, and friendly. He gave us several options, all of which were far less expensive than I had feared. He was very patient as we asked a million questions. He got our old system back up and running and let us know some things to keep an eye on. Bottom line, less than 24 hours passed between the time I discovered the A/C was broken until the time it was fixed, and at a reasonable price. Thanks ALL-PRO.

-Lisa L.

I was very happy with the job they did! I had been waiting on a plumber from another company all day, just to be called at 4 pm saying they wouldn’t be able to make it. I called All Pro and they said they could send someone over between 5-7, I was so relieved. He showed up around 530, diagnosed the problem, gave me the price and as soon as I agreed, he got to work right away! He was quick and fixed our clogged drain and cleaned up afterward. It was exactly the service and care I was looking for!

-Grace A.

Signs You Need Evaporator Coil Repair Or Replacement

The evaporator coil is the component that works to cool and condense returning air from the system. If the coil becomes dirty, it will freeze and stop working.

Other signs that your evaporator coil needs service include:

  • Uneven temperatures in your home
  • Excess humidity levels
  • The AC turns on and off repeatedly without changing the temperature
  • Warm air coming out of the vents
  • Strange noises coming from the condenser unit as it overworks to make up for a broken coil
  • Clanging sounds coming from the air handler

Why Choose All Pro Plumbing, Heating, Air & Electrical?

Trust our San Bernardino County cooling service experts for your next evaporator coil replacement or air handler installation and experience the following value-adding features and benefits:

  • 24/7 Emergency Service: Our technicians are always on-call to keep you covered during an emergency.
  • Free Estimates*: Get a free estimate and lightning-fast one-hour service on most calls.
  • Personalized Options: We offer service options designed to meet your unique needs and budget to make sure all customers have access to premium service.

Get fast and effective air handler and evaporator coil services in San Bernardino County when you call (909) 253-0664.