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335+ Google 5 Star Reviews
Your Trusted Heating & Air Conditioning Company
Serving Sussex County, DE and The Surrounding Areas
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Milton’s #1 Heating & Air Conditioning Contractor

Home heating and air conditioning may be relatively modern inventions, but we’re all guilty of taking indoor climate control for granted here and there. It’s easy to forget how much you rely on your heating and air conditioning unit until something goes wrong, and all of a sudden, your HVAC equipment becomes more of a burden than a benefit.

Get your system back up and running again with professional help from Milton’s number-one heating and cooling company! Top Flight Heating & Air is the top residential AC service company in Sussex County, DE, with over a decade of experience providing HVAC services throughout Delaware. Being located in Milton, DE, our team of HVAC technicians provide service all over, all the way from Lewes, DE on the east coast, to Millsboro and Laurel. 

At Top Flight Heating & Air, we take pride in being the best HVAC company in the Sussex County area. Our skilled, professional technicians offer routine HVAC maintenance services, same-day service for emergency furnace repairs, system inspections, AC repairs, and many other services for your HVAC equipment.

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Customer Reviews
We’re Soaring To The Top Of The Charts!

  • The best part of the experience was Ryan’s knowledge and responsiveness. He answered all our questions in a courteous, professional, and timely way, and provided a competitive estimate. Isiah and Michael did the installation, and were fast, on time, and thorough.

    -Randy F.

  • “Isaiah and Mike did a great job! Both were very courteous and professional. Ryan showed up with some needed supplies and was also the same. Our airflow problems were fixed and we have a noticeable difference in our system’s operation. Highly recommended.”

    -Rick H.

  • “My technician Isaiah Barnes was punctual, polite, and professional. He answered all of my questions, and got my AC up and running. He even stopped back two weeks later to verify if the repairs he made solved the problem. Highly recommended.”

    -Thomas W.

  • “I had a fantastic experience with this company, and I want to give a special shoutout to technician Michael. He recently replaced my HVAC filter, and I was thoroughly impressed with his professionalism and expertise. Quick service, and my system is running flawlessly. Highly recommend this company, especially thanks to Michael!”

    -Daniel B.

  • “Shout out to Top Flight Heating and Air conditioning. Sunday we had no air conditioning and by Tuesday morning we were up and running. Michael and Ryan were very professional and on time. Love the quick response and communication with us, text and emails.
    Supporting Local! Would highly recommend.”

    -Robert H.

  • “This whole experience was awesome! Ryan came on time, fixed every issue we had, and explained to us everything. We are first home buyers so the issues we’ve had to learn the hard way due to previous owner. Everything was fixed and we already felt a difference before he even left. Overall 10/10.”

    -Kayleigh E.
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    Maintenance Membership
    For service that soars — you need Top Flight! Become a member

    If you’re a homeowner, you know how important it is to have routine AC tune-ups for the summer, and furnace maintenance for the winter, to keep your living space comfortable year-round — or else you may end up with a costly catastrophe on your hands.

    But sometimes, it can be difficult to stay on top of all the complicated maintenance tasks needed to keep your heating and air conditioning system working efficiently, and that’s where Top Flight Heating & Air comes in! 

    Our HVAC maintenance service in Milton, DE, is designed to make it easy and convenient for homeowners to take proper care of their HVAC systems with regular maintenance visits from our experienced technicians. With a maintenance membership from Top Flight, you’ll enjoy priority service, peace of mind, cost savings, and so much more.

    Join today and save 15% off on all service repairs!

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    Jay Walls
    I just wanted to give a shout out to Tyler and Top Flight!! Tyler came to service my a/c unit this spring. He was on time, very professional, super courteous and very thorough. He went out of his way to explain everything he did, and was just awesome!! Thanks to Ryan and crew for great service. They are very dependable and reasonable!!
    Christopher Galeone
    Recently had Top Flight come out and perform maintenance and inspection service of my HVAC system and 2 mini-splits. Isaiah performed the work and was very professional, knowledgeable, and polite. He explained everything that they were doing. He even found a couple of issues with our original installation, fixed them for us and showed us photographs. I was extremely pleased with their work and very glad to have purchased a twice yearly maintenance program. I highly recommend Top Flight.
    Response from the owner:Thank you so much for your kind words! We're delighted to hear you had a great experience with Isaiah and our team at Top Flight Heating And Air. It's awesome to know that our maintenance and inspection services left you feeling pleased and confident. We're thrilled to have you as part of our twice-yearly maintenance program. Thanks for recommending us! 🌟
    Junny Encarnacion
    Very professional and knowledgeable; my heroes.
    Response from the owner:Thank you so much, Junny! We're thrilled to hear that you found our team at Top Flight Heating And Air professional and knowledgeable. Your feedback energizes us to keep delivering top-flight service. We're here whenever you need us! 💪✨
    Dave Westenberger
    Joseph did a excellent job!
    Response from the owner:We’re overjoyed to hear your great feedback! Joseph is a fantastic technician, thank you for choosing Top Flight Heating & Air!
    Sherry Wyatt
    Excellent service
    They came out quickly. The guys were super polite and explained things thoroughly.
    We highly recommend Top Flight Heating & Air!
    Response from the owner:We’re so glad to hear you had a 5 Star experience! Thank you for trusting Top Flight!
    Adam Brownstein
    I've had Top Flight out a few times for various services and maintenance. They are always very personable and get the job done quickly. They are now my go-to for HVAC.
    Response from the owner:We are ecstatic to hear that you are satisfied with our services, Adam. Thank you for choosing Top Flight Heating & Air for your HVAC needs.
    Nick Acord
    Excellent work and prompt service. Very knowledgeable staff. Reasonably priced. Highly recommend
    Response from the owner:We're overjoyed to hear about your excellent experience with our services. Thank you for recommending us!
    Turtley Awesome
    Very grateful for this local company and the work they do. Every tech that comes out is professional, knowledgeable and courteous. I cannot recommend Top Flight enough!
    Response from the owner:Your kind words about Top Flight Heating & Air are music to our ears. We appreciate your feedback!
    Bryan Silbermann
    Tom was prompt, comprehensive and clean. Second technician I’ve experienced with TopFlite and same high caliber. Well done.
    Response from the owner:We're honored to be of service. Thank you for the positive feedback.
    John Oconnor
    Two thumbs up to Top Flight for their expertise and professional service. They quickly responded to my problem (not even critical!) and had someone out to my house in one day.
    Tom throughly diagnosed the system and brought us back up, carefully explaining the cause of the problem and his fix. Thanks, Tom!
    As a family-owned business, Top Flight treats you like you're an important member of their family. I enthusiastically give them a rating of 5+.
    Response from the owner:Your gracious commendation and enthusiastic feedback warm our hearts like a well-tuned furnace. We at Top Flight Heating & Air are delighted to hear your experience has been a positive one.
    Kathy Groff
    Isaiah Barnes was so professional and took time to explain the quote. We are reviewing the quote and if any other prices comes in close we would definitely use this business
    Response from the owner:Thank you Kathy! We can't wait to work with you on your Ductless Mini Split Installation!
    Haley Marie
    Top Flight is an AMAZING company! Especially their customer service, Taylor is always so helpful and kind! I can’t say enough good things about Taylor and how professional she is!
    Response from the owner:We genuinely admire your kind words about our customer service team, especially Taylor. Thank you for taking the time to share your experience with us!
    Ashley Becker
    ⭐⭐⭐⭐⭐ Excellent Service & Professional Team!

    I can’t say enough good things about Top Flight Heating & Air! From start to finish, their team was professional, knowledgeable, and truly cared about getting the job done right. Scheduling was a breeze, and they showed up on time (which is rare these days!).

    The technician Isaiah was incredibly thorough, explaining everything in a way that made sense without any upselling or pressure. They diagnosed the issue quickly and had my system up and running in no time. You can tell they take pride in their work and genuinely care about their customers.

    If you’re looking for a trustworthy HVAC company that delivers top-notch service, Top Flight Heating & Air is the way to go. Highly recommend!
    Response from the owner:Your kind words about our team at Top Flight Heating & Air are a welcome breath of fresh air. We strive for excellence, and your satisfaction is the ultimate measure of our success! Thank you Ashley!
    Razhene Boone
    Response from the owner:Thank you immensely for your feedback. We deeply cherish your input.
    David Baranowski
    Timely service and friendly employees.
    Response from the owner:We're thrilled to hear you had a positive experience with our timely service and friendly employees. Thank you for your feedback!
    Michael Sorrick
    I’m sure that a lot of HVAC Companies are similar to Top Flight. I called them and ask the to come out on a weekend because I didn’t have heat. While they were on their way I figured out that I had a bad contactor. When the guy arrived, I showed him the contactor. He didn’t have one in his van. So he had to go get one. He replaced it and checked over the rest of the system and say I was low on refrigerant. He came back two days later and added 1/4 lb of refrigerant. I paid $1,488 for them to replace 1 contactor and a 1/4 lb of refrigerant. I was totally RIPPED OFF. I definitely would not recommend them!
    Response from the owner:Thank you for taking the time to share your feedback. We genuinely regret that your experience with us didn’t meet your expectations, and we’d like the opportunity to address your concerns. At Top Flight, we pride ourselves on providing professional, safe, and efficient heating and air solutions for our customers. Our process includes a thorough evaluation of your HVAC system to ensure that all components are functioning optimally and meet current standards. This is why we dedicate time to perform a comprehensive assessment rather than focusing solely on the immediate repair. We understand, however, that our pricing and approach may not have aligned with what you were looking for, and we sincerely apologize for any frustration this caused. We would love the opportunity to speak with you directly to better explain our process and discuss how we could make things right. Your feedback is incredibly valuable, and we’d appreciate the chance to regain your trust. Please feel free to reach out to me directly at 302-329-8003 Thank you again for sharing your perspective, and we wish you the best with your HVAC system! If there’s anything we can do to assist in the future, don’t hesitate to reach out. Sincerely, Taylor Operations Manager Top Flight Heating & Air “The TOPS In Home Comfort!”
    Nila W Taylor
    Excellent service, timely, knowledgeable, honest and everyone is so very pleasant to work with... highly recommend.
    Response from the owner:Thank you for your kind words! We appreciate your business!
    Brian McLaughlin
    We can't not be happier with our first experience with Top Flight .Local company near our house .We did a yearly membership and now have piece of mind for our Hvac units .Kudos Top Flight !!!!!
    Response from the owner:Thank you for taking the time to share your experience with Top Flight Heating & Air. We are thrilled to hear that you are happy with our service and the yearly membership.
    John Collier
    Great company even if they are named after a golf ball
    Response from the owner:Thank you for the kind words, John! We appreciate your business, we’re glad we could provide excellent service on your heating maintenenance!
    Ian Magin
    Called Top Flight as a new customer on one of the coldest days of the year. They got me scheduled quickly and were at my house before the quoted time. Their tech Tom did a great job diagnosing the issue and went above and beyond to get my heat back that day! Couldn't have been happier!
    Response from the owner:We are thrilled to hear about your positive experience with Top Flight Heating & Air! Thank you for sharing your feedback.
    Sandy Sard
    Ryan came out to our house to give us a second opinion regarding our hvac system.. 2 times in the past 6 months our heat has gone out and the house is not even a year old as of yet.. gave the system a complete look over.. when warranty is up we will be contacting Ryan and his company to service our hearing and air conditioning.. You and your company have our trust! Thank you!
    Response from the owner:Thank you for sharing your positive experience with Top Flight Heating & Air. We deeply respect your trust in our services and look forward to serving you in the future.
    Eleanor Refsnider
    Isaiah, the service technician was on time, courteous and very helpful. I will enjoy being a customer of Top Flight in the future.
    Response from the owner:Thank you for your review, Eleanor! We are thrilled to hear about your positive experience with Isaiah at Top Flight Heating & Air.
    No One
    Response from the owner:Thank you for your positive feedback!
    Brian Gourlay
    Response from the owner:Thank you for your wonderful feedback. We greatly appreciate your support.
    Evan Lallier
    The technicians came when they said they would. They were polite and diagnosed the problem quickly. They made the repair when the needed part came in
    Response from the owner:We're so glad to hear that you're satisfied with our services! Thank you for choosing Top Flight Heating & Air.
    Tricia Ecker
    We called Top Flight on Christmas Eve expecting to wait a few days for service. The phone number went straight to a REAL person who was pleasant, friendly, and had someone at our house within 3.5hrs. Our technician was also friendly and knowledgeable. He made a thorough assessment of our system and fixed the issue in the expected time frame. I highly recommend Top Flight to anyone looking for service and will definitely be using them in the future!
    Response from the owner:Your feedback is incredibly valuable. We are thrilled to hear about your positive experience with Top Flight Heating & Air. Thank you for recommending us!
    Kevin Jester
    Response from the owner:Thank you for your wonderful feedback. We appreciate your support!
    Steve Berlin
    Service was quick, courteous, and friendly. Not always easy to get things done quickly in LSD.
    Response from the owner:Thank you for your positive feedback, Steve. We're glad to hear that our service was quick, courteous, and friendly.
    Chris Burkhart
    Got our heater rolling again on Christmas Eve Day when it went out and we had a 40 degree house with family on the way in to town. Local, independent business that does great work.
    Response from the owner:We're honored to have been able to help you on Christmas Eve Day. Thank you for choosing Top Flight Heating & Air.
    Debra Queitsch
    We have been a Top Flight client for several years now. Top Flight offers an excellent service plan and exceptional customer service. Their technicians are very knowledgeable, courteous and take their time explaining any issues they may see presently or in the future. No hard core selling. Service calls are always timely.Their automated system provides you with accurate information for your technicians arrival. More often than not, their trucks carry a great inventory of parts, should you need any replacement items during their visit. An honest company with ethical, dedicated employees.
    Response from the owner:Thanks Debra!
    Monique Palmer
    I called to schedule an appointment for a technician to come out. Ryan was able to come the same day, about 4hrs later. He was very professional super polite n knew what he was doing. I wasn't receiving any heat n he was able to determine what the issue was n resolve it. I couldn't be happier. Definitely recommend this company to anyone who's having any problems with HVAC system.
    Response from the owner:Thank you for taking the time to share your experience with us, Monique. We're glad Ryan was able to resolve the issue with your HVAC system promptly and professionally.
    Donna Smith
    Top Flight did an awesome job replacing my whole HVAC system, including duct work. Ryan did a very thorough initial inspection of my old unit which allowed him to make the best recommendations for the issues I was having. They were prompt, courteous and explained in detail everything they were doing during installation. Everything was cleaned up well after the job and I appreciate how quickly they were able to get me scheduled. I highly recommend Top Flight for any of your HVAC needs.
    Response from the owner:Thank you for your detailed feedback. We are glad to hear about your positive experience with our HVAC services.
    Daniel Webster
    On-time and professional.
    Response from the owner:We're privileged to have provided you with on-time and professional service. Thank you immensely.
    Robert J Russell
    Isaiah was a pleasure to work with.

    Very courteous and professional. He explained everything in clear, understandable language.

    I would highly recommend Isaiah and Top Flight.
    Response from the owner:Thank you for your feedback. Isaiah is indeed a valuable member of our team!
    Vincent Griscavage
    Prompt, competent and professional. Shoe covers are a plus.
    Response from the owner:Thank you for sharing your positive experience with Top Flight Heating & Air. We're glad to hear that our service was prompt, competent, and professional.
    Belinda Kalomeris
    Professional and knowledgeable heat and ac company. Family operated company with family oriented values. Top flight saved the day for me when the company I originally hired to install my new ac central unit took off without completing the job. Top flight stepped right in, corrected and finished the job just as the weather was heating up. They also have improved the way I heat my house. Best heat/ac company I have ever worked with while owning many homes throughout the years. Thank you Top Flight!
    Response from the owner:We are overjoyed to hear about your positive experience with Top Flight Heating & Air. Thank you immensely for sharing your feedback, Belinda!
    Joe Begendorf
    Response from the owner:We're ecstatic to hear about your experience with Top Flight Heating & Air. Thank you so much for sharing your feedback!
    Larry Daisey
    Technicians are friendly, knowledgeable and very thorough.
    Response from the owner:Thank you for sharing your positive experience with Top Flight Heating & Air. Our technicians strive to be friendly, knowledgeable, and thorough.
    Nadine
    Tyler and partner were amazing. Very professional and explained things so I could understand. Would recommend for HVAC services
    Response from the owner:We're elated to hear about your positive experience with Tyler and our team at Top Flight Heating & Air. Thank you for recommending us for HVAC services.
    Noelle Sylvanus
    We have been using Top Flight for several years now. Ryan and his team have always gone above and beyond to make sure our system is running properly. They respond to any problems we have in a timely manner. They offer great customer service and are very professional. I have trust in their work. Rates have always been reasonable.
    Response from the owner:We genuinely admire your trust in our work. Thank you for your continued support!
    Carol Cunneen
    Tyler arrived on time and did a thorough examination of the system. He was polite, professional and pleasant. He explained to me everything about the system I highly recommend this service.
    Response from the owner:Thank you so much! We are glad Michael was able to help you with your Heating Maintenance!
    Janet Brennan
    The other day, when temperatures were in the teens, I woke up to 54 degrees in my house. I went on line to look up HVAC services and saw that Top Flight had many excellent reviews. So I called them. A couple of hours later, Isaiah and Tyler came to my house. I have to say that it was one of the best experiences, if not the best, that I have ever had with a contractor or service person. They were here all day. Isaiah explained everything to me in detail and encouraged me to ask questions. He was so patient and so nice. Of course, they fixed the problem and gave me some good advice. He was very professional but easy going and well-informed. Also, the prices are very reasonable. I highly recommend this company.
    Response from the owner:We're overjoyed to see your 5-star rating! Thank you for sharing your positive experience with us.
    Glenn Hodges
    Isaac serviced my ductless system in my sun room. The system was heating but was inconsistent in response to temperature changes. Isaac cleaned the inside unit and that seems to have improved how it works. He was on time and worked professionally.
    Response from the owner:Glenn, thank you so much for the positive feedback! We're glad that Isaiah was able to service your ductless equipment, and we're glad you are happy!
    george donahue
    Absolutely top notch. Technician found problem, explained what had to be done in detail. Exceptionally polite and courteous. If your looking for down to earth people, this is the place. No hassle whatsoever.
    Response from the owner:We are happy to hear about your positive experience with Top Flight Heating & Air. Thank you for sharing your feedback.
    Wanda Steen
    We were going through a total nightmare trying to find a company to fix our HVAC system. We tried 3 different companies that took our money and left us with a system that would stop working within a month after they said it was fixed. Top flight found the problem the 1st time they looked at it. It's now been running for almost a year with no problems. Isiah and this company are the best. We highly recommend them. Thank you Top Flight.
    Response from the owner:Hi Wanda! We appreciate the review and are glad we could be of service!
    Gillian Daniels
    I Highly recommend Top Flight! I called for service at the beginning of the cooling season. Technician came on time, inspected and cleaned the main two heat exchanger zones, checked all the return filters, measured the temp at each supply output and then inspected and cleaned a mini split. He took his time but was really efficient, thorough, clean and knowledgeable. Had great air conditioning all summer! I signed up for their service plan and will be scheduling our heating/fall call after Thanksgiving.
    Response from the owner:Thanks for the positive feedback, Gillian! We're happy to hear about your great experience with our service. Look forward to assisting you with your heating needs after Thanksgiving.
    John Zivkovich
    Top notch service from a first rate company- Ryan and his crews are honest and polite and very knowledgeable. We’ve been very happy with the work performed.
    Response from the owner:We genuinely admire your kind words about our service. Thank you for your feedback.
    George Bock
    Cleaned and rehabilitated my heater. They arrived on-time, two people worked on the unit, very nice and polite. They even showed me pictures of all the work they did on the unit.
    Response from the owner:George, we appreciate the positive feedback! We’re glad we were able to remedy the issue with your Heat Pump repair! We look forward to providing quality heating and cooling maintenance for you!
    Diane Acker
    A used Top Flight Heating & Air to replace my furnace. I was very satisfied with their knowledge and professionalism. I now use them for all preventive maintenance on both my heating and air-conditioning units. Their prices are very reasonable, and they are quick to response to calls.
    Response from the owner:Hi Diane! Thank you so much for taking the time to leave us a positive rating.
    Gregg Goins
    Top Flight is a Great Company. We are very happy with there Professionalism and Courtesy. They always Call before And after they do their check up. Everyone we have had come to the house has been very Informative and Nice a d always ask if they can do anything else. So Nice
    Response from the owner:We greatly appreciate your positive feedback, Gregg. Thank you for choosing Top Flight Heating & Air for your HVAC needs.

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