Scott Nelson came out & saved the day!!! My air conditioner broke in the heat wave- of course. He came out and fixed my air conditioner quickly. He was very professional. Highly recommend this company. read more

So thankful for this company they came in and helped us tremendously when our garage had a huge condenser leak! They fixed the problem in 24 hours! Another company we called tried to scam us and kept the water flowing all through our garage!!!!!! Thanks to Nelson air conditioning we have our AC running super cold and no flooding!!! read more

This company has been top notch every time I have used them . Just had a major service done as well as a new thermostat installed. Technician was super thorough and was very clean. He stayed to assist with getting the wifi unit connected and the phone paired correctly. Really helpful! Thanks, for your help!! read more

Customer service from everyone at Nelson Air is outstanding.. The company was highly recommended by a friend and I can now say 5 star service is what they give. From an initial meet up with Scott and review of my air and heating updates to the installation of a new attic furnace and air conditioning unit performed by Daniel, Nelson Air is excellent. Daniel saw to the wiring and duct work meeting code standards. I highly recommend Nelson for your heating and air conditioning needs. read more

** First time using them, great first impression! **. The capacitor failed on my A/C unit. They arrived within the time frame they provided to us. Kept us updated and gave helpful suggestions how to maintain equipment. Planning on some minor upgrades and they will be the first I call and don't plan on wasting my time with other quotes. * without their service that night, our home was too hot be in. It was a simple repair and they solved the problem! read more

Our AC went out on a really hot holiday, they came in a couple of hours and fixed the unit in about 20 minutes. Amazing family service!

We're so pleased with our new Trane heating and A/C system! Everyone we came in contact with at Nelson Air is knowledgeable, professional, and friendly...Amy the receptionist, Scott the owner, and the installers Daniel and Shane. Additionally, all of our many questions were answered and we were made to feel like valued customers. Nelson Air is a topnotch operation that we highly recommend! read more

Our AC went out yesterday. I remembered a friend of mine used this company and spoke very highly of them. My husband called and Scott, the owner, ANSWERED THE PHONE! It's rare to get this kind of customer service! We called yesterday and he was out this evening! He is professional, personable, wore a mask and made us feel very comfortable. He diagnosed our system to be a filter issue , got it up and running for just the service call, $79.00! When the demand is high he still runs his business with INTEGRITY! Didn't try to sell us a new unit like the previous tec did last year. HIGHLY RECOMMENDED NELSON AC read more

The team at Nelson Air is incredible. We worked with Scott to plan our full HVAC system update. He gave us a great quote and no hidden costs! Daniel did our install and he was outstanding - super clean, explained all the work he was going to do and had us up and running same day. We couldn't be happier with Nelson Air! read more

Really needed someone to check my AC because the air wasn't cool at all. Called Nelson Air and Scott came out and let me know exactly what was wrong and repaired it right away. I appreciated his promptness, knowledge and professionalism. I HIGHLY recommend them! Thanks again!!! read more

Always professional and punctual. These guys do the job right the 1st time and if you ever need them to re-check something, they are always willing to go the extra mile. Had them replace a wall mounted AC unit in my apartment. I can't believe my apartment gets cold now. Their prices can't be beat either. I've recommended them to friends, family and co-workers. read more

Two stars for price quote and information provided during initial call. One star for follow-up, I scheduled my work day the day of appointment to accommodate the service, and found out 20 minutes before the appt that it had to be moved to next day. Would have liked a follow up call at least an hour before giving notice of appointment change. Scheduled appt for following day, no call to cancel, no show to appointment. Called to verify time and didn't pick up. Can't give a positive review or a review at all if I am not treated as a valuable customer and you take time out of the work day to accommodate a service that was never received. Called Service Champions and made a same day appointment and the diagnostic fee was cheaper too. read more

I have used Nelson Air before and found them to be prompt, responsive, and cost competitive. I called them to replace my mothers furnace. It was no longer working and she needed heat. December is cold even in orange county. They understood the urgency, came right out, and started working. She will have heat and they even took the extra step of taping the main duct for leaks to save on future heating bills. If you need service for heating, air conditioning, or duct work in Orange County, I highly recommend Nelson Air. they can be trusted. read more

Scott Nelson was very professional, knew what he was talking about, and got our air conditioner fixed! So happy we have cold air now throughout the house. I would definitely recommend Nelson Air to anybody. read more

This company did an amazing job!! My air conditioner broke the Tuesday before 4th of July, and it was very hot out. I called Nelson Air and requested a next day appointment on a very busy four day holiday weekend. The owner was very professional and 'fit' me into his schedule even though I requested a last minute appointment. The owner and his friend were honest and told me my options for fixing my air conditioner. They did a great job, and I would definitely use them again and/or recommend them to friends and family. Thank you! read more

I called Nelson AC at 6 pm after I came home from work and noticed water dripping from one of the ceiling vents. It turns out the ac unit has a drain pipe which was clogged. He arrived the same night at 9 pm and cleared out the problem. Talk about after hours service. It was great! Especially since its been 100+ degrees lately. I would definitely recommend Nelson AC for service and/or repairs. I can't tell you how appreciative I am. read more

Scott, was very knowledgeable about the AC equipment. Had my unit diagnosed in about 3 minutes. He gave me options to fix and worked with me on a fair price. I will use Nelson Air again and also recommend to my friends. Thanks for responding to my call at 9pm. read more

Nelson Air has satisfied this very fussy customer. After nightmares with lots of other companies I finally found this great company. If you want quality work with atention to detail at a resonable price look no further!! Floyd Myers- Newport Beach read more

Scott Nelson from Nelson Air Heating and Air Conditioning has my recommendation! We called at 6pm and he was out to our home by 8:30pm and had our air conditioning fixed and running again on a day of record high heat with even worse heat predicted for tomorrow. Thank you for your awesome and prompt service! Thank you for fixing our air conditioner and for your reasonable prices! read more

During the recent heat-wave, my AC pretty much gave up. As you might imagine, my discomfort was extreme. I now had the problem of getting service for my equipment. Since all of the AC service companies were completely overwhelmed, I was lucky to get them to even answer my call (most didn't) let alone commit to a time for repair. My fifteenth call was to Nelson Air. Michelle answered and commiserated with my situation. She couldn't schedule anything then but pledged to do her best to put me in the que. Late that evening she committed to an appointment the following day. Scott Nelson arrived the next afternoon. He attacked my recalcitrant 12 year old system and had it up and running in no time. In fact, output was significantly better than it had EVER been, even when newly installed. Not only was I impressed with his technical skills, but he's the first AC person I've encountered that I thought was honest. Bold statement, but it's just a reflection of the industry. read more

Great service fast and knowledgeable. Scott is a pleasure to deal with. Answered all our questions and addressed all our concerns.

I dealt with the owner directly & I couldn't be more pleased with their work. They worked around my home remodel construction schedule which was extremely helpful. Also, their prices are great! We replaced our entire A/C & Furnace unit with all the work being done in 1 day. I will definitely be recommending them! read more

One of the most honest, fair, and hard working crews of technicians we've used. Jonathan, who served us this time, did a great job.

Scott was great! Quick response in the evening and came out early the next day! He was honest and saved us a ton of money. Thank you!!

It was nice to see a technician that was a perfectionist. They paid great attention to detail and educated me on the whole system afterwards. Thanks for the great installation guys, I highly recommend Nelson Air. read more

Nelson Air is the most incompetent air condition service I ever dealt with. They don't give free estimates. When they come out to do service, their equipment is old and broken. You can't even tell if it works. Then, after they go through an inspection, it it's basically guess work to find leaks, etc...I had to call my original air conditioning installer to find the real problem. Do NOT trust Nelson Air Conditioning. They are are a rip off. read more

Scott installed a new furnace for me. He was very professional, did a great job, and gave me a better price than the other estimate I had received. Thank you, Scott! I'm happy to refer you to friends! read more

Oct. 2015 Sadly we called Scott out to fix our AC unit as it had stopped blowing cold air. His final answer after a couple of calls back and forth is that he didn't have time. So much for standing behind your work. In the end we found someone else who said all it needed was some coolant. So sorry Nelson Air can't be bothered to look after their own install. We won't be using them again. From 3 years ago: Had Scott install new AC and furnace, and he even arranged to install pull down stairs into our attic, and a ceiling fan. They really put in the effort, and had everything installed in a couple of days (had to move some of our ducting to bring it up to code). A few months later the AC went out (fruit rats ate the wires), and he took care of that too. Only complaint is it seems he over schedules himself, and there fore arrives late, often. When he's here though, he works hard. read more

I called Nelson Air to come to my business to give me a quote. I own a grooming salon and was looking to tap into my current air conditioning unit and run a duct into my kennel room, where we keep the dogs, so they would stay nice and cool as well. The owner came initially to give me the quote and the price was fair. We set up a time for one of his guys to come back to do the job. The guy that came was friendly and did a good job. Two thumbs up. :) read more

Nelson Air was beyond a pleasure to deal with, they installed 2 systems in my house. A central HVAC system as well as a ductless mini split system. To actually watch them install this complex puzzle, amazes me. Thank you for the great experience, I highly recommend These guys for all Heating and Air Conditioning service and installations. read more

I'm so thankful for this company! My AC would not turn on late Saturday afternoon and after calling two other "24 hour" companies that said they could not come till the next afternoon, I found Nelson air. He came out same day which my roommates and I greatly appreciated! It turned out one wire just had conductivity issues so it was an easy fix. In the future when I need more work done I will definitely call Nelson Air. read more

I hired Nelson Air to install a custom system to my home. The owner Scott came out and gave me a very reasonable estimate. While giving the estimate he walked through all my options and explained the pros and cons of different types of equipment and where to place the unit etc. Scott even took his time to recommend the different types of filters, MRV ratings and UV lights etc, which was a concern for me given that I have severe allergies. I decided to go with the Trane system and it works amazing! The installation went smooth, on schedule and no added costs beyond the initial estimate. I would definitely recommend Nelson Air to anyone who needs AC installed. Scott and his crew provided both excellent service and high quality work! read more

I used Scott last Winter when my heater broke down. It gets cold in the desert. He installed a brand new unit with his crew in just a couple of hours. Hauled away the old unit and cleaned up the garage before he left. He did such a great work on my house that my neighbor hired him to install a new A/C and a new furnace. Scott and his crew knocked it out in one day and my neighbor is very happy. Recently my AC went out at my new home in Corona. Its 110 degrees and Scott arrived the same day I called him. I was ready to buy a new unit for $$$$$ but it was only a cheap part I needed and it only cost me $. Honest work. On time. Clean and affordable. I recommended to my parents who upgraded their whole home. I would highly recommend Scott. read more

Called, scheduled for next day and he showed up! Nice guy, straight forward and determined to solve my problems in both of my air units. Worked his butt off until all was solved- now my house is arctic cold and awesome. So if you need an air conditioning guy in Orange County (I am in Yorba Linda) call Nelson Air! read more

I own and operate a residential property management company. Scott Nelson (Nelson Air) has always been prompt, honest, and well priced for his heating and air conditioning services. I use Nelson Air all the time for the properties I manage, and am perfectly satisfied! read more

This is the best Heating, air conditioning guy in the business!!!! Had several quotes that were higher an he beat them all. Scott the owner is a honest, professional, an fair contractor.He iInstalled the entire system in one day when the other AC guys said it would be two days possible three. He worked from 8am untill 10:30 pm just to finish the job!!!! Wow great job Scott!!!! read more

Scott Nelson exceeded with Honesty and Quality work. He quoted me a complete system by Trane which I love. He was very knowledgeable and explained all the process to me with great detail. Changing my whole HVAC system was the best investment I have made so far this year. Not to mention the significant savings $$$$$$ every month. I will definitely recommend Nelson AC to all my family, friends and neighbors for service/repairs. Great job NELSON AIR!!!!!!!!! read more

It was time for a new AC system! My AC went out at the end of last summer. I've been putting it off, but wanted to handle it before the summer rush. I did my research and Scott from Nelson Air seemed the most honest, and I was not disappointed with my decision! He walked me through everything and gave me great peace of mind through his attention to detail. He really wanted it to be perfect beyond functionality! He was concerned by the aesthetics as well. It's nice to see people still take pride in their work! I'd recommend to any friend/family! Thanks Nelson Air! read more

I wanted to thank Nelson Air Heating and Air Conditioning for an over and beyond awesome job. Very competive pricing and superb installation. Couldnt be happier. read more

I talked to several HVAC contractors about replacing my units and by far Scott (the owner) had the best prices and seemed the most knowledgeable. He spent over an hour checking everything out and took the time to explain to me everything that needed to be done. He was even looking at ways in which he could save me money on the installation without cutting corners. I also like that your call his cell phone directly and deal with the owner (i.e. no sales people) why spend money on overhead costs that need to passed on to the customer. I would highly recommend giving Nelson Air a call for any of your HVAC needs. read more