Top-rated air conditioning pros.

Get matched with top air conditioning pros in Walnut, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your air conditioning project in Walnut, CA?

Select your specific project to find the pro for you.

Find Air conditioning pros in Walnut

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Walnut, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Excellent service from start to finish! They quickly diagnosed the issue with our AC and had it running again in no time. The technician was friendly, knowledgeable, and explained everything clearly. Highly recommend for any heating or cooling repair!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

10 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Air-Tech Air Conditioning & Heating Inc
Air-Tech Air Conditioning & Heating Inc
4.5(
202
)
Central A/C - InstallAir Ducts & Vents - CleanCentral A/C - Install - For Business+4 more

Serving Walnut, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"So many GREAT things to say about Air-Tech. First, I had a split system installed on one side of a duplex about 10 years ago. It was permitted and passed. Less than a year later I learned there were leaks/problems with it. The original installer wouldn't come back as they no longer worked in this geographical area and the European units weren't being used. Thank God they recommended Air-Tech! They fixed the system and offered an annual maintenance check where they come out every 6 months and check for leaks, clean filters, etc. Their office is so wonderful about reminding me if I have forgotten to set up an appointment. Their guys are ALWAYS professional, clean and courteous. Well, two months ago the tenants in the other side of the duplex requested AC and I knew Air-Tech would be great. I called Alex out (what a super nice guy) and he came over the next day I think. I remember it was a Saturday. Since the price of these system had gone up substantially from when I bought it ten years I was shocked. I signed the contract and gave him a deposit but after talking to BF he suggested I get other bids for something that expensive. I called Alex and asked him to put my project on hold for a week while I looked at bids. I think he was surprised because I knew them and the system but I felt like I needed to be prudent. He wasn't rude or short. He was very respectful. The other company's estimators were pleasant enough and I learned about some options for a second gas heating system that I wanted installed at another location. The other company's prices were similar. One added a city inspection which I was doing as an added cost ot Air-Tech's price and the other company added five years of maintenance onto their price. So the prices were a bit higher. I knew I'd be purchasing the maintenance services from Air-Tech so I knew how that compared. I called Alex back about a week later and said: "Let's go. Thank you for the time to check around and feel confident. Armando and Andrew have installed the systems this week and I could NOT BE HAPPIER. I am amazed that Armando knows so much about electrical, gas and mechanical systems. Andrew is very helpful and knowledgeable and quick to make sure things are clean. Every time someone has come out from Air-Tech they are nice, neat, respectful and focused on their work. They aren't taking calls on their phone, they aren't talking excessively, etc. ANYWAY, as part of the installation for the gas wall heater they discovered that there are two gas leaks under the raised property. Someone had installed temporary shut off valves for two previously serviced gas units (a floor furnace and radiator we think). Yikes! Air-Tech was supposed to be done with ALL the work yesterday and while it's not as convenient to be at the property another day I am so thankful that they found the leak and are fixing them without charging me any money! How can they do that? I think it's because they know I'm a loyal customer. I'll be purchasing the maintenance contracts. Thank you Alex, Armando and Andrew. So happy to be working with you!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

48 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for MSP Heating and Air, LLC
MSP Heating and Air, LLC
4.9(
327
)
Central A/C - Service or RepairAir Ducts & Vents - Clean

Serving Walnut, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"This is the 4th of July weekend and our air conditioning went out!! We appreciated the quick response and the quality of the work performed by Danny. He was very thorough and quickly resolved the problem. He was very courteous and professional."
duct job all R-8 ducting
4 Ton GOODMAN Furnace
customer Vlastos
duct job all R-8 ducting
furnace install

+67

Response time4 hrs
15 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,517
)
Air Ducts & Vents - Clean

Serving Walnut, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Technicians were very professional and did a great job of cleaning the dryer and 18 vents, as there has been a very noticeable change in the air flow. We had a few rooms where there was hardly any air coming from the AC but after the vent cleaning the rooms now get improved air flow and are able to cool down. Will definitely use them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Trabuco Air
Trabuco Air
4.6(
130
)
Central A/C - Service or Repair

Serving Walnut, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Bill Walker is the tech that diagnosed my faulty condensing unit compressor to be grounded. Sounds like a good thing right? but its not. You never want to hear that. Should you ever do so you want Trabuco Air handling it. I was explained what was wrong and given options that i could comfortably choose from without just breaking the the already shaking bank. Trustworthy and reliable Bill is a cool cat and confident in his skill set. He knows air conditioning extensively and will solve your needs as well. I can finally enjoy the upstairs again thanks to Bill from Trabucco Air."
Response time5 hrs
Recommended by94%of homeowners
Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
10
)
Central A/C - Service or Repair

Serving Walnut, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Chris analyzed my entire AC and heating system and explained in detail the pros and cons of performing additional maintenance. I greatly appreciated his description of future potential issues and his recommendations on how to mitigate them. Thank you Chris."
After: brand new furnace with industrial grade filtration system. Re-wrapped ductwork with fiberglass free wrapping and acoustic soundproof closet/return cavity.
After: 2 Stage Variable Speed Furnace installed perfectly!
After: Properly sized, energy efficient, and installed to code.
Before: Homeowner had tried multiple times to get the pilot light ignited.
Before: Old furnace not installed to code.

+31

3 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for RS Air Conditioning & Heating
RS Air Conditioning & Heating
4.9(
23
)
Central A/C - Service or Repair

Serving Walnut, CA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Ray is very professional, and provided options for my air conditioning unit replacement. Ray went out of his way to replace a small gas line leak that he found. He also drove to Anaheim early on Saturday morning to pick up a part that was needed for the AC unit, and came over to install it so that I would have the air conditioner available for the upcoming heat wave this week. He and his team were on time, and considerate during the installation process. I highly recommend RS Air Conditioning & Heating."
New Outdoor Install
Furnace Install
Satisfied Client
Energy saver!
Carrier Water Soure

+2

Response time3 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
4.9(
270
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Walnut, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"I had a gas valve and water valves that were woefully old and needed replacing. I read the reviews for All City and was impressed so I gave them a call. From the beginning, the experience was fantastic. Jasmine answered my call and was pleasant, informative, and answered all of my questions. She was able to get someone out to my house in a day! The day of service I received a text from my tech, Ruben, letting me know he was on his way, and he was early at that! I can’t say enough great things about Ruben. He is friendly, professional, knowledgeable, and just an all around cool dude! He had my gas valve fixed within 15 minutes, which is no small task. The valve and piping are over 50 years old. I was impressed with how quickly and thoroughly the job was done. He had to come back the next day to replace the water valves so we made an appointment for the next morning. Let me first say, I am an early riser. I jokingly told Ruben this the prior day when asked what time he could arrive the next day, we set the appointment for 9am (I’m already up for 3 hours normally). At 7am I get a text that he is on his way, Ruben followed this up with a phone call making sure it was ok to come that early. OF COURSE! Again, he showed up smiling and ready to go. Despite the challenges of the ancient pipes he had the job done in no time. He was also kind enough to provide new hoses for the washing machine. Additionally, he actually made a run to the hardware store to get a longer gas hose to accommodate where I intended to position my stacked washer/dryer! Let me emphasize again, I cannot say enough great things about Ruben and the service I received. He went above and beyond any expectations and was able to get a job done that I thought near impossible. People like him are rare these days and not only does his personal work ethic shine through, but by proxy he makes All City a cut above and beyond all plumbing companies. I will defiantly be using them, and requesting Ruben, for all of my plumbing needs moving forward."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+42

14 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Temp Air System, Inc.
Temp Air System, Inc.
4.8(
54
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Walnut, CA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Temp Air personnel are responsible, honest, knowledgable, and their customer service is top of the line. They were accommodating with a scheduled that worked for us. Also, the techs that came to our house were professionals and answered all of our questions. I highly recommend them."
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation

+14

Response time10 hrs
Response rate99%
7 neighbors recently requested a quote
Avatar for Penguin Heating and Air Inc
Penguin Heating and Air Inc
5.0(
15
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+1 more

Serving Walnut, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"I highly recommend this company. Penguin heating & Air was very quick to respond to my request, fast text reply, sent them pics, they replied with a quote, which was way lower than anyone else on this site, or even our regular guy that we normally use, we scheduled an appointment for the very next day, which was today, he also finished the job the same day! David did a very good job, very professional. Despite a terrible rainy day, he got the job done. When he was done he walked me through with exactly what he did. He also quoted me for a service on an existing unit and his quote was almost $200 less than what our regular guy charges us... We will absolutely be using this company again."
Diamond Bar
Diamond Bar
Diamond Bar
Furnace Install
AC Condenser

+6

27 neighbors recently requested a quote
Recommended by6%of homeowners
...
Showing 1-10 of 571
Air Conditioning questions, answered by experts

Florida rooms can have heat or air conditioning, although not all do. These rooms can be added to the existing HVAC system or use a mini-split system, or they may just use a ceiling fan or the breeze from the windows for cooling. Florida rooms with air conditioning often have glass windows to keep the cool inside instead of just mesh screens.

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

A blocked return air vent can cause your HVAC system to work much harder and, therefore, less efficiently. The result is higher utility bills and poorer air quality. A blocked return air vent can also cause unpleasant dust, dander, and odors to linger in your home’s air.

You should flush your AC drain line once every three months to keep it clear of debris and buildup. Keeping your AC drain line clean prevents clogs, backups, mold growth, and extra wear on your AC unit. If you live in a humid area or have several furry pets, up your cleaning schedule to once a month.

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

The Walnut, CA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.