Called Keith yesterday, he was here in a couple hours. Had my AC diagnosed and added new Freon on one of the hottest days of the year. The house was up to 91 degrees inside. Within an hour the temperature had dropped to a comfortable 83 degrees and still chilling. Great communication and excellent service. read more

Keith, Owner, and Cody worked on our heater for 4 weeks tirelessly in December 2025 because of unexpected repair complications. Manufacturer had a 1-year warranty but Keith personally wrote on our invoice at the time of purchase, 2-year warranty for labor and parts, which he honored till the heater was repaired. And because of it, they came through for us at no cost. If you are looking for a heating or air conditioning company, look no further as we highly recommend Keith and Cody for your repairs or purchases. Thank you. Bill and Cynthia M. read more

Amazing and fast service. My air conditioner died and Keith bent over backwards trying to revive it but we ended up having to replace it! He had a new unit by the following day and installed it! Great service!!! read more

Aidan came out yesterday and diagnosed and replaced the capacitor on my unit... immediately solved the problem! Keith and Aiden are 2 of the most honest, reliable and experienced professionals in the HVAC business and I couldn't recommend them enough... 5 Star Service and experience! read more

Called on Sunday 4/19. Call was answered by the company's answering service. She took down all my information and told me Keith would be giving me a call to discuss my situation and schedule service. Keith never called. I waited until around noon on Monday to call back and spoke to the same woman who answered my previous call. She remembered my call after hearing my first name and double checked that all the information she recorded the day before was correct. It was. She apologized and stated the Keith would give me a call. I have still not received a call back to schedule service. My A/C stopped blowing cold and my unit is 14 years old. I guess if KeithHAC is too busy to schedule service on a system that likely needs or will need to be replaced soon for thousands of dollars, I will find a different HVAC company that is better with customer service, communication, and wants to add new clientele to their business. AVOID KEITH HEATING AND AIR CONDITIONING! read more

We called them on Saturday morning after a crazy heat wave took out our AC. They were responsive and showed up by 3 pm the next day. The guy that came to our house was very knowledgeable and helpful. He had us up and running. No trying to take advantage of us and the heat wave we were under. 10000% with recommend them for your needs. read more

I cannot speak highly enough of Keith Heating and AC. Our AC stopped working and we had no idea what was wrong. We had several companies come out, and to our surprise when Keith's came out it wasn't as bad as we thought!! We quickly learned how important honesty is in this line of service. Keith's was honest!! Upfront and informed us what we needed without all the extra stuff that wasn't needed. A new condenser. The process was smooth, quick and painless! On install day Keith the owner himself stopped by to make sure everything was going smooth and to introduce himself. From start to finish it was a very pleasant experience and we highly recommend Keith Heating and Air Conditioning for honest, reliable and excellent work! read more

Heat wasn't working. They came out right away & diagnosed the problem quickly. They had to leave to get a necessary part, then returned a couple of hours later and installed. They also didn't try to sell me thousands of dollars of additional (& unnecessary) work like many other HVAC companies do. Highly recommend. read more

Keith and his crew came over immediately to assess the issues that I was having. He walked me through the entire process. He made recommendations based on the best solutions without trying to sell me on unnecessary services. Life would be a lot easier if all repair shops worked like he does read more

Disappointed because no one has reached out to me on service. I will have to seek another place. I hate to go out of my residence area but if they don't contact me back then it shows that I can't rely on this place. I really wanted to try it. I tried a second time this afternoon and it's a messaging service. Yesterday I had contacted them on the messaging service at the end of the day so I knew I would have to wait to hear from them this morning but nothing. That's when I tried again. read more

Keith and Ayden came out next day after my AC stopped working. Arrived promptly and handled everything in less than an hour, both Keith and Ayden were very helpful in explaining what went wrong and what they would do to fix it, even giving this (relatively) new homeowner some tips on how to keep my AC running better over time. Quick service, fair pricing, and a great attitude. I'll call these guys in the future if my AC needs any work. read more

Our air broke out of the blue and I called them right before closing and someone called me back immediately. Came to my house was friendly, informative, fast, and efficient read more

Prompt, professional, and fair. Called today they showed up an hour or two later. Replaced my capacitor... instead of trying to sell me a whole new unit. Aidan was swift and got my ac on chill status... thanks guys. I strongly recommend these guys. FYI Keith installed our whole unit years ago, as well. read more

Keith is always positive. His upbeat and can-do attitude keeps going, even with challenging jobs. When my AC system failed, Keith came out and replaced the compressor unit and reworked the whole system. When it started failing again, he immediately returned and figured it out. This included rewiring the forced air unit so the fan would always run at the correct speed. It's been running perfectly for years now. I trust Keith completely to provide honest, competent, and reasonably priced service. read more

Keith and his team saved the day! Our AC went out on a hot day and he was there the next day first thing in the AM. Came on a Sunday and did not charge a weekend or ER bogus fee. I was nervous we'd need a new unit, but Keith and his team assured me it will be ok and they are not ones to gouge people. He diagnosed the issue and fixed the problem for less than $500. So blessed that our AC unit is working better than ever. Keith and his team are honest, reasonable, & reliable. I highly recommend them. Can not say enough good things. Thank you! read more

​One of our A/C units stopped working. Saw ALL the amazing reviews and definitely had to contact them! Within a few minutes of speaking to someone regarding the issue, she had reassured me that ​Keith will be contacting me in 5 min. In less than 5 min, spoke to Keith regarding the issue and 20 min later he arrived and fixed the issue in less than 10 min. It's great to find someone that's trustworthy and not BS you on what needs to be done. Will definitely be contacting you again for any future jobs! Thanks Keith! read more

This is a very late review and i will admit this from the start. I was one of the many mid-summer, a/c just broke and needed help ASAP, I had read reviews and all positive experiences from Keith's and decided to give them a call. Very prompt response, and came out within a couple days. Tim was my service provider and he came out to the house, was very friendly, and let me know that it was my zone board that had gone out. He ordered the parts and was back to install them within a few days and i was now $700 lighter. He let me know that there were more issues with my system but he could get me up and running, just not with all 3 zones in my house operating correctly because a rat had chewed through the wires that went to my downstairs thermostat. I asked how much it would be and he told me $300, i had to deny and told him I'd do it in a month or two. Here's where the "review" begins. Finances got tight for me after that and i never called them back. I'm a fairly handy individual and after some research i saw that Honeywell had wireless thermostats, so i go up to my attic to get the model number off my zone board and found a complete rats nest of wires. There was zero care taken. Then i start digging and find that it's not all wired correctly, so i go and pull my thermostats off the wall to check the wiring configurations. All are the same except, the thermostat downstairs. Which Tim had pulled a wonderful stunt and had me do a continuity test with him at time of install to prove my wires were chewed. They weren't, he had just tried to dupe me of more money. So i match the wiring with my other working thermostats and violá, it works. So now i got to thinking about the one zone that he said "wasn't working" and again after crawling around in my attic i find that he had disconnected one of the wires on the damper for that zone. Which makes sense because it was on the downstairs zone that the "rats" had chewed the wires and for airbto come out it would need to be open at all times to let air flow. But why wouldn't you unplug it at the board, unless you're trying to hide your work. All in all i got a new board. Not sure i even needed one, but i was able to get my system functioning properly without spending a dollar more. I forgot the name of the company but yesterday my wife ran into Tim and remembered him and told me the company. So i apologize for my late review read more

Keith Heating and Air Conditioning - My wiring job on the zone board. - Heating & Air Conditioning/HVAC Near Me - Simi Valley, California

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Ayden and Cody came to our home and diagnosed what was wrong with our central air unit within a few minutes. They had the replacement fuse and capacitor in their truck. They are extraordinary young men! read more

Our A/C unit went out on Saturday due to the high heat and we called around to find someone who is available to come out that day to help us. Keith returned my call within an hour and was able to come to our house an hour later we hung up. He diagnosed the problem which was the fuses. Replaced it and it was working again, for about 15 minutes. Unfortunately the main problem wasn't the fuse. So I called Keith back and he came back after another hour and found the actual problem. The capacitor was defective which cases the fuse to go. Luckily he was able to fix that issue on site and we got our air back the same day. Keith and his assistant are very friendly and on top of their work. I certainly will call him again if I have a problem with my A/C again. Thank you Keith. read more

Keith is my go-to for any AC or heating repairs. I have used him on multiple occasions, and he is always quick to respond and get to the property. In addition to quality of work, trust is a big priority for me, and I love that Keith doesn't overcharge or come up with unnecessary repairs. read more

Called at 2AM on a Saturday with an AC problem and Keith came to look at it later that day. I was clueless about how the HVAC system works and what sort of maintenance was required. He taught me some basic things and fixed my problem. Super honest, trustworthy business. Will definitely reach out again with a future problem. Really fair price as well. Thank you, Keith!! read more

So today August 2nd 2024 during a heatwave in simi valley our air conditioner stopped working after calling a few places with no response we called Keith from a positive review on next door , he was able to send his technician Aidan 2 hours later and Aidan was able to diagnose the problem and fix it , thanks for responding with such short notice, the Wilson's read more

Dependable, honest and fair prices. Called for service on a failing a/c motor. Keith and Aden showed up in under 20 minutes. After a quick assessment they discovered the problem and advised me what was needed. I have an older unit. They did not try to up-sale me on anything and offered a fair price to repair the problem on the existing unit. read more

On one of the hottest days this summer, my mini split in my AIRBNB unit froze over. I needed help to ensure my guests were comfortable. I reached out to 6 companies and only 1 returned my call immediately - Keith! He was so kind and immediately asked me some questions to see if I could fix the issue myself for free! I followed his directions and none of the fixes (dirty filter etc) were the issue. He said he'd be right over and he was!!! Within less than an hour he had fixed the issue. My guests and I were blown away by the speed and service. I will only be reaching out to Keith if I have any cooling or heating issues in the future. One other thing... not only was he speedy and friendly, his fee was lower than what I thought it would be! read more

I am always scared when I need a repair done to my home because when arriving they see a big, nice house and assume the bank account is fat. I usually have to call several companies to get one job done fairly. This man was amazing to say the least. I called him this morning (on a day there's a heat advisory) not expecting much to happen but it is 1pm and he was here, fixed it, and gone to the next emergency. I did get a verbal spanking for not changing my filters but as long as it's a verbal and not a monetary spanking I'm good lol. They changed my filters and got my house freezing cold and it was such a fair price. Thank you Keith! read more

Our AC went out and I immediately went to all the forums for recs and Keith kept coming up. So glad I called. They immediately answered the phone in the morning and were at my house before noon. The AC was up and running before I even knew it. Fair prices and Aidan (sp?) was so friendly and explained everything thoroughly. Definitely recommend! read more

I have to say I can see why this company has a 5 star average. I called Keith Heating and AC and the owner called me back and walked me through how to solve my fuse issue. He was super helpful, knowledgeable, warm and funny, and personally memorable. Like so many already, I'd recommend this place in a heartbeat to anyone. I'll always call their number when in future need. And the cherry on top is their superior hours of operation. This place will be open more times when you need them when all others are closed. Thank you again Keith! Will be calling back soon to solve some airflow issues. -Thomas "the handyman" Tedesco read more

I had a very typical scenario where I got home Friday evening and my A/C didn't work. After calling multiple businesses only to talk to a 1-800 number to be told I couldn't get service till the next day, Keith picks up and offers to come by on his way home from the last job site. Upon arriving, he not only discovers the problem, but gives me very honest opinions on how to fix my A/C unit in affordable ways. Keith also allowed for me to call him the next day with additional questions as I worked to resolve the issue. My A/C unit is working. If you're looking for an extremely honest HVAC service - Keith is who to call. read more

Our A/c unit stopped producing cold air on one of the hotter days of spring. We called Keith at noon, got a response within the hour and were able to get an appointment for service that evening. When he showed up to our home, he was able to identify the issue relatively quickly. He completed the service within, maybe 15 minutes of waking in the door. When we spoke about price, he was able to give me a bit of break and good warranty for parts and labor. Would definitely recommend and use again when our A/C unit has trouble again. read more

Keith is the guy you can trust. I was having an issue with my heat. No hot air was coming out of the vents. Keith took a look the same day I called and it turned out to be just a wire that popped out. Other guys would have probably took advantage and make up a bigger problem, but not him. He didn't even charge me. Great guy and he'll be the only one I use for AC and heating services for now on. read more

I read there's been such great reviews so I really wanted to go with them for my HVAC inspection. Completely unprofessional. Their technician failed to show up to a scheduled appointment period and when asked to speak to owner Keith 4 times, he never returned my phone calls either. I've tried to talk to dispatch about 10 times on how professional it is to have zero communication about missed appointment. At least tell me you can't make it and reschedule for another appointment, but seems like no one can get ahold of anyone there. read more

Keith and company were very responsive! Very professional! Very knowledgeable! The were very thorough and quick at the repairs! Most importantly. They were able to source the parts required within 24 hours! The heater repair of the motor and squirrel cage was found to be loose and misaligned! Which verifies my thoughts of how this occurred! They fixed it and it purrs like a kitten! The heater! I would use them again! read more

Technician showed up in his on vehicle and street clothes. No PPE l. Changed appointment 2 times aI was then given amount for service call ( no written bill) i asked if take card he he said "for 75 bucks?" Dont use them. read more

These folks were very friendly and professional. Air went out. Called Keith, he was friendly and professional. Not to mention how they made me feel like everything would be okay. The first company I called said I would likely need a new system installed. They came out and replaced a few couplings and boom a/c again. read more

Just had a completely new AC system installed by another company less than a year ago, and it stopped blowing cool air. Called the other company to come back and fix it and they kept flaking on us and just didn't show up without any notice on 3 separate occasions. Guess they already "got their money" from us ‍‍. But then I called Keith Heating and Air Conditioning in the afternoon and they were out in the same day! Service was excellent, professional and friendly. The service man, John, didn't try to upsell us on anything that we didn't need and pricing was very competitive and reasonable. We will definitely be using Keith Heating and AC for all our future HVAC needs and I recommend you do too! read more

My air conditioner went out during the night before a 100 degree day in a string of 100 degree days. Called for service, spoke with Keith at 8:15 am, Keith was able to come out within 4 hours and quickly fixed the problem. I'm happy to support a local small business and plan to call Keith in November for annual A/C service. read more

Keith is the absolute best there is for AC when you need AC assistance for your home. We were dying for days with lack of proper AC. I called Keith late in the day and he was able to come same day and fix our AC. And his pricing was the most affordable out of all the others I called. Highly reccomend !! A+. read more

I've had it with these Clowns.. New c installed 06/2019 with 3 year parts and labor and 10 years system. They have been here 5X.. ya that's correct 5X in the past freeze .. "oh it's the wiring (YOU WIRED IT).. Oh you need a new thermostat.. Oh.. we see here your parts are from 2018.. (YOU INSTALLED 2019???) 2 No shows after appts set.. Now.. They wont even call me back. Thermostat of course NOT WORKING (new) DO NOT fall for these praises on Yelp I've been m,ore than patient and accommodating and my final response from them after MULTIPLE messages?? NO RESPONSE.. Shame on you.. You know how cold it has been?? My next step will be to hire a competent A/C person and send Keith the bill .. then Court if he doesn't. DO NOT LET THIS COMPANY WORK ON YOUR HOME.. They will only send an employee, not the owner. I'm the nicest and fairest person on the planet. I even tip. My biggest mistake. read more

Back in 2021 my AC stopped working during the first heat wave of the summer. This year my AC stopped again during this years first heat wave! The condenser was not even turning on and our fan was blowing warm air. I knew to call Keith right away! When I called Monday we agreed on a Tuesday morning visit and check up. He kept in contact and came promptly Tuesday morning. Keith had a junior tech with him, Aiden, who got right on it and found the issue right away! Some part inside the condenser (probably original) had basically exploded. Luckily for us, Keith had the part on the truck! Aiden was incredibly helpful and got it all fixed and put back together right away! When they left there was cold air coming into my house again. this is twice now that Keith has saved the day and fixed our existing unit. He's never tried to push us into a new system (ours is very old) and is always willing to try a fix first. Thanks a bunch to Aiden and Keith for the top notch customer service during such a busy time of year!! read more

Keith and his crew are AMAZING! We've been using this service for years. They're fair, honest and reliable. Devin helped us today with our air conditioning units. He was extremely respectful, knowledgeable, and polite and of course, he got the job done! I highly recommend Keith and his crew for all of your heating and air conditioning needs! read more