Fernando, quick to respond on yelp. Quick appointment, quick diagnosis, quick repair. Good customer service. Have used him twice, no issues. No pressure to earn your service read more

I requested maintenance service on my central AC unit and a mini split unit. The service was timely. The technician, Fernando R. ,notified me when they were in route. They were polite. They were very knowledgeable. Fernando R. shared specific data points with me during the service and offered helpful insights into the workings of my systems. Very knowledgeable staff. read more

Fernando was the best! He answered my call on maybe the second ring and then moved around his own calendar to prioritize our urgent call. He came by, gave a transparent quote, and started work immediately. Can't recommend K4 more! read more

They showed up and communicated well throughout the process of assessing the service need and repair. Both repair men were respectful and thorough! read more

Excellent service front start to finish. Excellent price value. We had a full service replacement a/c unit, furnace and ducting in the attic with wifi thermostat. Very experienced and Knowledgeable with the products they use that are up to date energy efficient. Workers were very respectful, polite and clean no mess was left behind. Highly recommend. read more

K4 Heating & Cooling - Before and after replacement. - Heating & Air Conditioning/HVAC Near Me - Lancaster, California

I had an issue with my AC and reached out to K4 (Fernando). He got back to me quickly and was able to schedule a same-day visit. Fernando arrived right on time, was very professional, and explained the issue in a way I could understand. He fixed everything efficiently and even gave me tips to prevent future problems. Excellent service from start to finish--I'll definitely be using them again and highly recommend them! read more

I had reached out to Fernando and his team about replacing our attic insulation and having our ducts cleaned due to a recent fire that occurred near our house. (We have used them multiple times in the past for regular maintenance and repairs to our HVAC system over the course of a decade). They were able to meet with us, give an appropriate estimate and had us scheduled in no time. This two day process was quick and smooth, the team was efficient and took precautionary steps to protect personal belongings in the removal and installation process. I would definitely recommend this company. They have even gotten us a same day appt on a holiday weekend when our a/c took a dump on us and were able to remedy the situation. read more

They have the best pricing and quality service very professional and knowledgeable. Thank you. K4 Professional installation. read more

K4 Heating & Cooling - Brand new unit. - Heating & Air Conditioning/HVAC Near Me - Lancaster, California

NO SHOW APPOINTMENT. I spoke to Fernando and made made an appointment between 4 and 6 to have my home AC repaired. I was surprised that I was able to get a same day appointment during during this extremely hot weather. I gave him my address and he told me that he'd give me a call when he was 30 minuets out. I never received a call and as of this morning I've not heard back from Fernando or anyone else from K4 Heating & Cooling. read more

Fernando and his team are excellent! My sister's AC stopped working when it was going to be in the 100s in Palmdale. My nephew is only 5 months old and we were worried about him so I frantically reached out to multiple HVAC companies around 4pm to see if they had any availability today to diagnose and repair. Fernando called me shortly after and was able to send a tech out within 1.5 hours and it was fixed within 20 minutes! The technician also explained to my brother that AC units typically last around 15 years before a complete replacement is needed, and their unit is 12 years old, so it was nice to know that they were going to need to prepare for it within the next couple of years. It was nearly 110 degrees in Palmdale today so I appreciate them working in this weather! Thank you to Fernando and his team!!! read more

They installed a heating/ac mini split unit to a non-ducted living area of my house. I will confidently recommend this company to my closest friends and relatives. While the unit exceeded my expectations I can't say enough about how seamless the process was. They have the right balance of being both personable and professional. I was given a fair quote and prompt exceptional service. They 100% earned my future business and referrals. read more

K4 Heating & Cooling - Heating & Air Conditioning/HVAC Near Me - Lancaster, California

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Awesome services , they responded super quick and fast . Can't wait for more business with them

I definitely recommend K4 Heating and cooling. They were responsive and have great reviews. Service for my issue was fast and direct. Fernando was friendly and professional. Price was extremely fair for the services provided. I will keep them in mind for for needs. read more

Our AC stopped working and I also took the day off due to some pain. I didn't know how I was going to survive the hot heat today. Making the appointment was quick and easy. Everything was done quickly and efficiently. Totally recommend! read more

Fernando and his team at K4 are awesome! We had K4 come out and install swamp cooler units in my house. He was professional with the estimate and installation process. Totally happy with the units as it gets super hot in the AV and an AC bill eats up your wallet so fast. About two months into the summer, one of the units had a problem with the electric water pump. We text, Fernando called right away, put me on calendar for the next day and fixed it, no charge, super efficient. Told me about some water softener that might help prevent the problem later. These things happen, but the response from K4 was tremendous, made what could have been a heated situation much cooler. Highly recommend! read more

Our heater decided to go out 4 days before Christmas this year. I couldn't get anyone to come out that installed our unit from Circulating Air and their prices were ridiculous. because it was a Sunday. Fernando from K4 Heating and Air responded quickly and came over and took care of the problem. He didn't have the parts so he made sure we had heat for the night and was back at 7 o'clock in the morning and replaced the part in 15 minutes. I can't say enough about his quick service and knowledgable customer service! I will always call them when I'm in need of heating or air conditioning assistance. Thank you! read more

Fernando and company were excellent. Communication and timeliness was great! Appreciate the hard work and dedication to getting the job done. read more

We called K4 heating and cooling company because of their Yelp customer satisfaction rating of 5 Stars. They responded to our request and inside a week we had a new HVAC system installed. They were prompt professionals and we are very happy with the service they provide. We recommend K4 Heating and Air conditioning enthusiastically to anyone with need of their services! read more

I selected K3 Mechanical to do the job at my house and very happy with the end results! He installed a dual zone mini split system and I'm very happy with it! Fernando is a very nice guy and will work with you through the whole process. He is young but yet with allot of knowledge and experience! He is very polite, on time and will make sure it turns out right! I will hire him again for my next project. read more

K4 Heating & Cooling - Heating & Air Conditioning/HVAC Near Me - Lancaster, California

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Looking to all the places to get service for my broken A/C unit I decided to go with K4. Fernando came over and gave us honest quotes and what available options we could agree on. Decided to get it replaced. Since it would take a while for the new unit to be ordered and some other things he temporarily fixed our A/C until the new one arrived. Fernando & his crew were both professional, & knowledgeable. When the job was complete were both satisfied with the service and extra work he gave us without an extra charge. I highly recommend K4 & heating to everyone. They're reliable, honest, and provide excellent service. read more

Fernando responded on time and took care of my AC problem easily. He seems very knowledgeable and overall nice guy.

Alfredo and Uriel did a great job out here replacing my condenser and evaporative coil. Thank you guys and Fernando for setting up quickly.

My plumber was coming out to reroute the P-Trap connected to my condensation line, but he was recommending these other options that I wasn't comfortable with. So I called K4 Heating & Cooling for technical question with regards to my condensation line and the logistics of how it should be routed. I didn't need actual work done on my HVAC but more understanding of how the condensation line works. The owner answered my call and actually took the time to listen to my issue and provide his recommendations. Despite not getting any work done, I appreciate the assistance provided over the phone. I would recommend. read more

I have used Fernando and his crew on several projects and have referred them to several clients, family and friends.These guys are on point and they don't screw around. I have dealt with several AC Contractors over the years and I have to say Fernando tops all of them. Quick to respond and pricing is has always been very fair. Give Fernando a call, you won't be disappointed! read more

Excellent customer service, the technician is honest and very knowledgeable about home air conditioning systems. After I described what was wrong Daniel had it diagnosed in about ten minutes. Also I would like to add the service was prompt. They said service between 2-4 PM and he texted me and said he would be there between 2-3 PM and he was there right at 2:00 PM which was awesome. He had my AC up and running in less than an hour. Great job Daniel!! read more

I used the "get a quote" feature on Yelp. The guy was responsive until I set up an appointment with him. He didn't respond back to the scheduled appointment when I asked for confirmation and didn't show up at the house. I asked for another appointment and he didn't respond. All of the messages show on the app that he read them and simply didn't respond. Skip this company. There are others with 5-star reviews who respond. read more

Much appreciation from me and my family to Fernando! While he wasn't able to service my HVAC emergency directly, he did take the time to guide my troubleshooting and repair efforts. With his advice, I was able to make the repair and get sweet sweet relief from blistering AV heat. Thanks! read more

I recently needed both my ACs replaced. K4 Heating and cooling was recommended by a friend. Best choice I made. Their prices were competitive, their service was premium, and they were very reliable. Fernando and his team removed my old ACs and Installed two new AC's. They installed new ductwork and a few extra vents. The estimate was right on, no hidden charges. I would recommend K4 Heating and Air to anyone looking for service or replacement of your AC or heating units. BEST IN THE AV. Thanks Chris & Adriana read more

Danny came to service our AC unit and he was amazing! Great customer service, very pleasant and informative! Thank you so much. I will definitely be referring to friends and family!! read more

I am an owner of a business in Santa Clarita that operates hot equipment constantly; we depend on our air conditioning to stay in good working condition to be able to service our own customers. After using many different AC companies we were tired of getting bamboozled and lied to; Fernando set a repair up straight and fixed the mistakes OTHER AC repairmen made in the past. He walked me thru all the problems and options and earned my trust. Even though he is out further away we will turn to k4 from now on, strongly recommend if you are within his service area (all the way down to the SF valley) to give these guys a call. Their response time was good even in the busiest of days. read more

I want to commend this business for its professionalism and promptness. My outside A/C decided to quit working, and knowing nothing about any of this I was lucky enough to choose the right business, in every way. My house is now in the process of cooling down and the price was much less than I had expected. I strongly recommend to anyone needing service or repair using this company. read more

I needed my two A/C condensers moved to the side of the house and these guys responded right away. I got a great quote, and they were very flexible with their timing. It was a two step process, he came out and disconnected everything, set them aside so we could get the hard scape all done... that took a lot less time then I thought but on short notice he came out right away and hooked up everything right away... everything was done neat and clean, he checked the temperature inside and confirmed both upstairs and downstairs were cooling correctly. Very happy with these guys, will definitely use them again! read more

I had a great experience with K4. My AC unit wasn't running and Fernando was able to find the problem and fix it quickly. They have automated texts so I knew what was going to happen and was notified when he was on the way over. Very professional, will use again. read more

By far the best company I have ever hired for my ac unit. They came to my home and provided me with an estimate for my replacement of my air ducts also didn't try to upsell me for more than I needed. They have very good and affordable pricing. Very professional and precise. Got to my home at the appointment time and got to work. Changed all my ducts, surprised they were able to do it in a day since it's a lot of work. But was amazed at the work they did and how spotless they left my home after they finished.I would recommend them to anyone looking for a ac unit maintenance. Very good company and whats best very good people. read more

My AC stopped working. Called K4 and they were out the next morning. Fernando was able to determine the problems very quickly and got my unit going. Extremely reasonable pricing for the service call and parts, and excellent customer service. I will be using K4 for all HVAC needs from this point forward. I am so happy with the honest and professional service provided! Thank you Fernando! read more

These guys are super professional and honest. They got our house nice and cooled down just when we needed it. Look no further, K4 will take good care of you! read more

My elderly grandparents called me at 6:30 am, which was alarming. They don't wake up till 10. Grandma was crying and really upset their swamp cooler wasn't working. Called this company immediately at an ungodly hour and they answered. They were so reassuring and kind. They told me they were going to take care of grandma. They had a busy schedule and were willing to work her in . They were so patient and professional, made her feel at ease. They were extremely honest and transparent. I will always keep their number on hand and highly recommend them. read more

Had air conditioning service had good prices and fast service I will recommend my friends and family best prices in town reliable and trust worthy read more

I cannot say enough good about Fernando and his workers. They helped me out in a spur of the moment and as a small business owner, I appreciate them working so swiftly and efficiently. SUPER affordable and accommodating of my emergency. Danny and Alfredo were professional and knowledgeable. I would absolutely use this company again and I highly, highly, highly recommend them. Thank you Sherryl Gonzalez at SMS Tax and Bookkeeping for the referral to this great company. read more

Nice technicians reasonable prices find the problem right the away get the job done quickly well done.