
Fast, honest heating and cooling help for Sunnyvale homeowners. We fix most HVAC issues on the first visit and keep your home comfortable year-round.
Services
Sunnyvale homeowners count on their air conditioning systems to keep up with long, hot Texas summers. When your AC stops cooling, starts blowing warm air, or just cannot keep your home comfortable, we are ready to help. At Lakeside Air, we provide honest, professional HVAC service for families in Sunnyvale, TX. We are a family-owned company founded in 2013, and with more than 25 years of hands-on air conditioning experience, we know how to find the problem fast and fix it the right way.
We keep our service straightforward. When you call, you speak directly with us to schedule service. Our diagnostic and service call fee is $125. Once we arrive, we diagnose the issue, explain what is going on, and give you a repair quote onsite before any work starts. Our trucks are fully stocked, so most AC repairs are completed on the first visit, often the same day.
Sunnyvale offers homeowners a quieter, more spacious feel while still being close to Dallas. That also means many homes need dependable cooling systems that can handle heavy summer use, dusty conditions, and the day-to-day demands of North Texas weather. We help homeowners stay ahead of breakdowns, improve indoor comfort, and keep energy bills under control with practical HVAC solutions that make sense for the home.
If your system is short cycling, making strange noises, leaking water, freezing up, or struggling to cool certain rooms, we can troubleshoot it quickly. We work on all major HVAC brands, makes, and models, and we do not push work you do not need. That honest approach is one reason so much of our business comes from repeat customers and referrals.
We offer complete residential heating and cooling services to help protect your comfort year-round.
We are a small team by design, with three people focused on quality service instead of high-pressure sales. Our customers appreciate that we show up ready to work, explain repairs clearly, and respect their budget. We typically complete 8 to 10 repairs per technician per day, and our stocked trucks help us solve most problems without making you wait on a second trip.
Your HVAC system does more than cool the house. It affects airflow, humidity, indoor air quality, and how comfortable your family feels every day. If you are dealing with dust, uneven temperatures, stale air, or allergy issues, we can recommend practical indoor air quality upgrades that help your home feel cleaner and healthier.
Routine HVAC maintenance is also one of the best ways to prevent surprise breakdowns in the middle of summer. Our seasonal maintenance service helps catch worn parts early, improve system performance, and extend the life of your equipment.
If you need AC repair, HVAC maintenance, or indoor air quality service in Sunnyvale, give Lakeside Air a call at (214) 642-7468. We are proud to provide honest service, clear pricing, and fast help when your home comfort is on the line. Book your appointment today and let us get your system back to working the way it should.
Real feedback on honest service, fast AC repair, and the kind of results people recommend
"I am very pleased with the service I received on my air conditioner unit today. Lakeside installed a brand new heating and air system for me 5 years ago, and can't say enough how professional this company is. Luckily, there were no issues after it was checked out today (air filter change will be more frequent from now on).Lakeside is a very honest company and I will continue to call on them for future needs."
"Great guy, reliable,great work"
"I really appreciated the 5 star service and the timely manner-thanks"
"The absolute BEST!!! Daniel and his team are way more than 5 stars! Recently had the blower motor go out at our house and it was a weekend. Daniel came so quick, diagnosed the problem and put a new motor in. I would recommend Daniel and Lakeside Air a thousand times!!!!!!!!!!"
"’ve had nothing but great experiences with Lakeside Air. They’re prompt, professional, and truly know their stuff. From start to finish, their communication is clear and they always take the time to explain the work being done. It’s hard to find companies that are this reliable and trustworthy these days, but Lakeside Air has definitely earned my respect and continued business. Highly recommend!"
"Called at 4:30am, repaired my a/c at 8:00am!!!! Amazing!! Best customer service ever....."
"This is my second time using these guys and again I’m amazed at their honesty and quality of work. Great company and great workers. Highly recommend!!!"
"I contacted Daniel about some issues we had with our system and he was prompt and professional. Daniel was quite knowledgeable and found not one but 2 issues I had. One was an obvious issue we had but the second was an issue only someone with the knowledge and expertise it took to find and both were taken care of in no time. I prefer to use locally owned businesses and they came through for us. I'll recommend Lakeside Air to anyone that needs work and they'll be my only phone in the future. 5 stars and kudos to Daniel and the gang at Lakeside Air."
"We had been trying to get another company out to fix our AC unit for 3 days and they kept canceling on us. I called Lakeside Air. He answered the phone immediately and was at my house within 30 minutes. 15 minutes later, problem solved. Not only was he reliable and quick, the total price for service call and repair was less than the first company wanted for just the initial service call! We will definitely be using Lakeside Air in the future! Thank you!"
"We have used Daniel at Lakeside Air several times & would highly recommend him to friends & family. He’s very reasonable, reliable & friendly."
"Did an excellent job on installing new AC unit."
"I highly recommend Lakeside Air. Daniel is just as pleasant as you can ask for. He's knowledgeable and answers all your questions in lingo you can understand. He's been servicing our system since we purchased our house and you know you can trust him. He won't try to upsell you on something you don't need and his rates are extremely reasonable. It's nice to have an A/C service you know you can depend on....especially here in Texas! Once he's come out and serviced your system...you won't ever call anyone else. Rhonda Landress - Kaufman"
"Very knowledgeable and honest!! Will never use anyone else!!! 💙"
"Daniel is reliable, trustworthy, a great communicator and affordable. One of the best experiences I've had dealing with an AC repair. He's definitely earned all my future business."
"I had contacted Daniel to come out & inspect an issue I was having with my compressor, he was here before noon & had multiple options for me to select from. As a normal homeowner, I went the most cost effective route, it lasted me about a month. After a few days of him trying to locate the obsolete part that was unavailable to be found, he had several options for me to select from on a new HVAC system. The system was installed within about 5 hours from start to finish. Thank you Daniel for your help!"
"Without a doubt Lakeside Air is the company to call! Daniel was easy to work with on a scheduling basis and once he found the problem he was able to install the unit the next day. I would not hesitate to call him again for future service. I got three quotes for a new HVAC system and he was the lowest. He also didn't try and sell me something I did not need. He is honest, straight-forward, and gets the job done quickly."
"This company is awesome! Our unit broke down at about 7PM. They came over to the house 30 min later and figured out within a few minutes that we had a freon leak. After filling up the line with nitrogen they came out the next day and replaced the part in the attic. They were always on time and I was updated throughout the process of what they were doing and how long it was going to take. Would definitely use Lakeside Air again."
"Great Service, Very Fast and Knowledgeable. Daniel explained all may options so I could make the best decision for my needs. Thanks for Cooling us off Daniel!"
"Daniel was able to service my A/C the same day that I called him after my dog had chewed thru the wires on my outside unit. He explained everything he needed to do as he went along and answered all of my questions. He was very knowledgeable and trustworthy. I will definitely be using him for all my A/C needs in the future."
"Great reliable service. Will definitely recommend to other people. Replaced both a/c units, heaters and ductwork."
"Daniel is thorough and so honest. Those are qualities that are hard to find in the service industry, especially when you’re a woman. I’m a repeat customer so when I say his prices are fair and he comes in a hurry, I mean it! Daniel is definitely my go to for HVAC!"
"Great company, professional service I was happy with work and will only use Lakeside as they are the best."
"We highly recommend Lakeside Air to all our friends in the Forney and Rockwall areas! Daniel and his team are prompt, professional, very knowledgeable, and do amazing work! We are extremely pleased with Lakeside Air!"
"Daniel is a man of his word. Working with and using HVAC mechanic's for many years at apartment complexes, Daniel is the BEST I have come across. He fixed our AC issue in the time frame and price he quoted. No over selling just plain honest work. I highly recommend Lakeside Air and Daniel."
"Daniel was absolutely great. He was able to come out the same day when others couldn't. He called when he was on his way and was professional upon attendance. He knew exactly what was wrong with my system and fixed it within 10 min. He then installed my nest and had it up and running within 10 min. He was absolutely amazing and a lifesaver. I would recommend him to anyone and would utilize his services again. Price was very reasonable."
"We just had a wonderful experience with Daniel Smith and crew at Lakeside Air Llc, from fair pricing to professional installation and follow up to make sure we were happy with all. We had inquired with a few other contractors prior be referred to Lakeside Air and not only did Daniel offer the most knowledgeable insight, he was very nice and thorough. Matthew & Jane S"
"Daniel has been great! Installed a new AC unit in the middle of summer heat very quickly! My husband has MS and the heat is something he can’t handle. They were caring and got the job done quick! He even came out a few days ago when we had to turn our heater on for the first time and smelled a strange burning smell! It was nothing but new coils, but the peace of mind he gave me by stopping over early was very much appreciated!"
"Professional and quick service - shows up on time - they fix it right -the first time!"
"After having a bad experience with Willard air and their unprofessional staff I didn’t longer want to do any business with them so I reached out with Lake side Air and They responded as fast as possible coming to my home the same day to fix the problem with my air unit and had redone the other company’s unprofessional poor job! I highly recommend Lakeside Air and Daniel was outstanding, professional, knowledgeable efficient and able to provide a great service, from now on I will be calling them instead of those thieves at Willard’s that just take advantage charging you for a piece poor job and when I called them to come replace the part they installed and was under warranty, they told me that they were booked for a week and that they didn’t have anyone available to assist me. They wanted me to wait a week? Freaking kidding me?? That’s not the way to treat a customer but I am glad that I found a reliable company to trust and do business with!"
"It's not often these days when you can get quality service, quality work, honest assessment at a competitive price. That's what you get from Daniel and Lakeside Air. No need to call anyone else!!!!"
"Very happy that I made the decision to reach out to Daniel with Lakeside Air for assistance in replacing my AC system, as I had been very leery about this process since I've dealt with the pushy HVAC 'sales/technicians' in the past. Daniel answered all of my questions and provided me with a clear cut pricing option to replace the entire system, including labor with no hidden costs or fine print to be cautious about. He also provided me with a couple of financing options to best suit my needs. He and his team were able to come out within a matter of days after my initial call and installed a new AC system in less than a full work day. I would highly recommend Lakeside Air to my family, friends & neighbors for all of their future HVAC needs, thanks again Daniel!"
"I use Lakeside Air for all my properties. Daniel has saved us a lot of money over the years. He's honest and reliable, which can be hard to come by these days!!"
"A+ service. Very professional. They came 2 hours after calling them and fix our home AC in less than 24 hours."
"Daniel made time to come out on a Saturday when our heater went out in the winter, and his prices were beyond fair compared to others. We had another person come out twice before, and Daniel was able to fix what the first guy couldn’t. He was professional, friendly and I would highly recommend him to anyone!"
"I've had Daniel out on several occasions. He's courteous, timely, and fair. I continue to recommend Daniel to friends and family."
"Lakeside is the only company I trust to work on my systems! Trustworthy, honest and dependable."
"Excellent service and reasonable price. Need A/C or heating work this is the people to call. Highly recommend!!!!"
"He responds quickly to his calls and fixed our heater in a heartbeat. I will recommend him to anyone. He’s professional and very polite too."
"Daniel is phenomenal! He repaired a leak in our system and he was very professional, honest, fair and upfront about what was wrong and what needed to be done. Lakeside Air is my go-to for any HVAC issues. I have referred them to several friends and all of them have nothing but amazing things to say about Lakeside Air."
Lakeside Air
Get honest, same-day HVAC service from our family team before the problem gets worse.