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Air Conditioning Replacement & Installation Services in Sussex County, DE


Are you tired of sweating through the summer months because your air conditioner can’t keep up? It might be time to consider air conditioning installation or replacement services in Sussex County, DE, and there’s no better crew for the job than Top Flight Heating & Air!

At Top Flight, we understand that upgrading your AC unit is a big decision — but it’s one that can improve your home’s comfort and energy efficiency for years to come. Our team of experienced technicians is here to help you find the perfect replacement system for your home and provide the professional installation services you deserve. So don’t suffer through another hot summer with a crummy air conditioning unit. Call our AC installation and replacement professionals today to schedule a consultation!

Sussex County’s #1 Residential Air Conditioning Replacement Company

Top Flight takes pride in our reputation as Sussex County’s leading air conditioning replacement and installation professionals. Our residential air conditioning installation company provides HVAC services throughout the following locations in Sussex County, DE:

  • Milton
  • Lewes
  • Rehoboth Beach
  • Milford
  • Millsboro
  • Georgetown

Don’t need a new AC unit? We specialize in all things air conditioning systems here at Top Flight, so we can still provide the help you need. We are available around the clock for many other air conditioning services, including but not limited to AC maintenance and AC repair. Don’t hesitate to reach out and get a free estimate!

Residential Air Conditioning Replacement Services in Sussex County, DE

When you need a new AC unit, call on our residential air conditioning installation and replacement company for the best HVAC services in the business. During our consultation, we can determine which type of air conditioner will make you and your family the most comfortable in your space.

Our Sussex County AC installation and replacement professionals can also recommend energy-efficient air conditioners that will wow you with their performance. Get a free quote today for air conditioning service, and we’ll show you some of the latest and greatest HVAC units on the market!

Here are a few of the many air conditioning replacement services in Sussex County, DE, that we provide:

Our Sussex County AC installation and replacement professionals can also recommend energy-efficient air conditioners that will wow you with their performance. Get a free quote today for air conditioning service, and we’ll show you some of the latest and greatest HVAC units on the market!

Here are a few of the many air conditioning replacement services in Sussex County, DE, that we provide:

Central Air Conditioning Installation

A central air conditioning system uses a duct system to regulate the air throughout a designated space. It is one of the more expensive and time-consuming air conditioner options but proves highly effective when complete. To install a central air conditioner, you will need to schedule an initial consultation with our Sussex County team. Central AC installation can be a complex process since the system must attach to your existing ductwork while the indoor unit is replaced.

We will inspect your space and make assessments to ensure we can install everything according to your specifications.

Heat Pump Installation

If your ancient central air conditioning system is sucking up your time and money without providing any actual comfort, it may be time to consider a different type of AC unit. A heat pump system serves as both an air conditioner and a heat source in your home, eliminating the need to install dual HVAC systems. Not only do heat pumps provide the convenience of a combined cooling and heating unit, but these sophisticated systems offer some serious energy efficiency benefits as well. Most importantly for homeowners, these units are extremely low-maintenance, easy to install, and require minimal service or repair. To learn how our efficient new heat pumps can help you save big bucks, contact our Sussex County HVAC team now for a free estimate!

Ductless Mini-Split System Installation

As its name states, a ductless mini-split air conditioner system requires no ducts, unlike a central AC unit. This efficient type of air conditioner can go on the wall or ceiling in multiple areas, providing “zoned” cooling. Like with all systems, you can control the temperature through the thermostat, but with this type of system, you can monitor and change the temperature in a few rooms at once. You will be able to manage many spaces and achieve comfortable temperatures to your liking with a convenient and effective ductless split system!

Wall Unit Installation

These units also do not require ducts but have no wall-mounted thermostats to control temperatures like ductless systems do. Wall unit systems have manual controls and work well for new room additions. As their name suggests, they are typically wall mounted, but can sometimes be placed in other locations. Many modern wall unit models provide a cost-effective option for strict budgets while sharing many benefits of more expensive air conditioning systems. Our team can quickly and easily help you and your family with wall unit installation and offer competitive, affordable pricing for your new AC unit.

6 Signs It’s Time for a New AC Unit

What do heat pumps, central AC systems, and ductless AC systems have in common? Their limited lifespans. Unfortunately, no AC system can provide cooling power forever. And after an air conditioning unit has exceeded its service lifespan, it begins costing you more money than it’s worth to keep it alive.

Is it time to think about a new AC installation? There are several issues that your AC unit may develop that point to severe problems. Book service ASAP with our Sussex County residential air conditioning installation and replacement company if you notice any of the following danger signs:

  • Your unit is 15 years old or older, and it is increasingly hard to find compatible parts for repair.
  • Your AC system struggles to cool your home during the summer months or doesn’t blow cool air at all.
  • The SEER (Seasonal Energy Efficiency Ratio) rating of your unit is below 13 (this indicates that your unit is inefficient). A modern new air conditioner will save you a significant amount of money on energy bills.
  • The cost of air conditioning service is becoming equivalent to the cost of purchasing a new unit or the cost to install a replacement.
  • During the spring or summer, you spend more money and time on AC repair or maintenance than you do enjoying a working AC unit.
  • You are tired of using a central air unit or depending on a portable AC unit. In this case, we can recommend other AC units that may or may not connect to your existing ductwork. Ductless split systems are particularly advantageous if you are interested in not having to install ducts or lug a portable unit around through multiple rooms of the house.

Contact Our Skilled Air Conditioning Replacement Professionals Anytime!

Air conditioning installation and replacement services in Sussex County, DE, are a significant investment, so make sure to choose an HVAC team you truly trust. From Milton, Lewes, and Rehoboth Beach, to Milford, Millsboro, and Georgetown, DE, homeowners everywhere in Sussex County rely on Top Flight’s air conditioning replacement and installation professionals for superior service at affordable prices. Contact our talented HVAC technicians today to schedule AC installation or replacement services, and we’ll be there to serve you before you know it!

Frequently Asked Questions (FAQs)


Should I repair or replace my air conditioning system?

If you’re trying to decide between air conditioner replacement or repairs, your best choice is to consult an established heating and air conditioning installation company in Sussex County. Most air conditioning units last 10 to 15 years, depending on annual routine maintenance checks and careful attention. One person’s central AC unit might last nine years while another person’s heat pump might last 16, so it’s important to speak with technicians about your options. We can help you discover the best options for your air conditioner and remove your old unit safely.

What is the average cost for air conditioning replacement?

Much like how we can’t provide you with a quote for repair or maintenance service until we actually see your HVAC unit, we cannot provide an “average cost” of replacing your air conditioning system either. All air conditioners are slightly different, therefore no two AC installation costs will be the same. Your AC system has its own quirks and qualities, and the price of air conditioner replacement will also depend on the type of new system you are interested in since some cooling systems are more expensive than others.

If you’d like a quote for replacing your air conditioner, contact our Sussex County HVAC company today. We can suggest models that suit your budget and keep your house comfortable,  and we stock a variety of high-efficiency systems that will reduce your energy bills. Just give us a call, and we’ll visit your home to provide you with information about the AC systems we offer, the approximate cost to install the HVAC system of your choice, and ways to keep your new system running for as long as possible.

Can I perform AC installation or repair myself?

If your air conditioner isn’t working properly, attempting DIY system repairs or maintenance to restore your system’s cooling capacity can be tempting. However, system repairs are more complex than you think. We know our customers love to save money, but replacing your system is a job best left to experts.

It is always better, safer, and more effective to leave air conditioning services to a company that specializes in them. Installing AC systems can be dangerous and expensive when done alone, and you will not have access to the same level of knowledge that licensed professionals do. Find the most up-to-date information, suggestions, and recommendations by hiring a trusted Sussex County air conditioning team to replace your HVAC unit.

It is not wise to replace or repair your AC unit yourself because:

  • It’s much easier than you think to make mistakes during the HVAC installation process — and often, these mistakes are costly ones. As a result, you may lose more money than if you hired expert technicians for service, or end up dealing with an uncomfortably hot home.
  • Performing HVAC repair or replacement takes time, strength, and energy you may not have. Installing AC units is a multi-person job that can be quite physically intense.
  • Cooling system repair or replacement requires parts and tools that are not available on the consumer market or are only available for a high price, meaning that DIY AC costs can mount quickly.
  • Without the personal protective equipment that technicians utilize, cooling system repair and replacement can be dangerous. Putting in a new AC system can expose you to gas lines, electrical components, circuit breakers, bulky overhanging ductwork, and other safety hazards.
  • DIY HVAC repairs or maintenance can result in decreased unit efficiency, costing you money and causing you headaches for many years to come.

Saving a few bucks up front on AC installation costs may seem appealing, but these and other drawbacks end up turning DIY into more of a burden than a benefit for almost all of the homeowners we’ve met. In summary, you should always leave HVAC system installation to the pros… trust us when we say you’ll be glad you did!

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Am C
Am C
1718770110
Detailed Oriented! Great service!
Diana Erney
Diana Erney
1718418570
David Drebing
David Drebing
1718320785
Had issue with AC not coming on when i got home from work. Called for service after normal work hours. Technician Ryan Brower came after hours, diagnosed problem. Got system working. Extremely happy with tech & service A+.
Karl Haller
Karl Haller
1717851893
Ryan did great job in explaining job to be done, and Isiah did great job on instalation.
Donald Bucklin
Donald Bucklin
1717782626
Very professional. Reasonably priced. Great all around experience. Very highly recommended.
Hollie Linville
Hollie Linville
1717598477
I am so impressed with the service that I received from Top Flight. First of all, they had a cancellation and put me in immediately. They sent out their technician, Isaiah B. He was polite, professional, and knowledgeable. He seems very confident in his work and wants to make sure he covers all bases with no pushy sales pitch. He was excellent and I'd recommend him to everyone.
Chip Brenner
Chip Brenner
1717506989
Isiah was great with our service call yesterday. Very professional. Explained the repair we needed very well. Extremely happy.
Gus
Gus
1717095775
I would highly recommend Top Flight for all your HVAC needs. Isaiah and Ryan were very professional and answered all my questions regarding my total HVAC installation. Thank you Ryan and Isaiah. Doug Martin
Steve Carodiskey
Steve Carodiskey
1716750558
Ryan did an awesome job…Had it working in less than 30 mins would highly recommend Top Flight.5 stars
Daniel Callahan (DTCallahan)
Daniel Callahan (DTCallahan)
1716654358
UPDATE: Tyler was just out to service our AC for the first time. Just like Ryan he took the time to explain everything he was going to do and answered all of my questions.As a new customer and and not having a gas furnace prior, Ryan took the time to explain what he was doing and how the system worked. He was very knowledgeable and professional.I would have no problem recommending Top Flight to any of my neighbors.
james shockley
james shockley
1716576053
Top notch very cordial very politeIsaiah was great
p “Patricia” weath1
p “Patricia” weath1
1715288538
Isaiah Barnes was Professional, Knowledgeable & Kind. Joe, Isaiah's assistant is also of great character. I trust both of these folks completely. So grateful to have found Top Flight. They will continue to have my business as long as I am in the area.
Courtney Dulin
Courtney Dulin
1715266530
Joan Hitchens
Joan Hitchens
1714691185
Very Satisfied. Great Service.
J Ga
J Ga
1714055744
Tyler P. did our A/C Maintenance Service today. He was very pleasant to deal with, pointed out and took care of better insulating the refrigerant lines on inside unit & outside as well. Worked quickly and efficiently. Thanks again Tyler.
Carol Cunneen
Carol Cunneen
1713900983
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.
val pisacane
val pisacane
1713898427
Tyler from TopFlight was fantastic. He earned a new service subscription customer.A prior tech from Air Temp solutions left the previously working system disabled and not working. Their follow up tech quoted $1,250 for a new thermostat and thermostatic board. Needless to say I searched for another company.Tyler diagnosed a simple but easily overlooked problem. The system was restored with only a service call.Big call out to Tyler and Top Flight!
Donna McCafferty
Donna McCafferty
1713795774
Issac did a great job. Very professional and courteous. He explained the process well and looking forward to installation of new system for our pole barn.
Susan McKechnie
Susan McKechnie
1713285687
Isaiah was my technician who performed a routine AC checkup. He was professional, knowledgeable, and polite. I was impressed with the service so I signed up for the annual plan and have high expectations if I ever run into any issues. Top flight was recommended by a friend who had issues and used several companies that couldn’t fix the problem before finding Topflight that did fix the problem.
Ben McCall
Ben McCall
1712938934
Very knowlagable team, and prompt service. They got me fixed up on their first visit.
Martin Burton
Martin Burton
1712270623
On April 4th 2024. We had a great experience with Top Flight Heating & Air. Our technicians Isaiah Barnes and Joseph arrived on time. Isaiah took the time explaining every detail of the job. Very professional. We highly recommend this company.
George Dellinger
George Dellinger
1711997698
Glad we switched Top Flight for our geothermal HVAC maintenance.They have a smooth process to set and confirm appointments. Isaiah (the technician) arrived exactly on time. He is exceptionally well-trained, confident, highly proficient, professional, and easy to communicate with.I feel that our HVAC will be in good hands with theTop Flight competitively-priced maintenance program.
Maria Maksymowych
Maria Maksymowych
1711831495
Shout out to Top Flight! I had an emergency call and had to turn my heater off. Technicians arrived the next morning. Service, honesty and technical competency exceeded expectation. Thank you.
Chris Derchin
Chris Derchin
1711052233
First service by Isaiah was outstanding, he took time to explain what he was going to service before & after he was finished. I was promptly contacted next day by Christian to set up follow up Appt. Now I understand why they have 5 stars on the Google reviews.
Tracy Niedrowski
Tracy Niedrowski
1711050611
We had Top Flight install a new HVAC system. Isaiah and Tyler were great at the installation. They cleaned up after the job which was nice. The plus is the system is nice and quiet compared to our old system and the balancing they did reduced the temperature extremes in our upstairs vs downstairs.
Tammy Crumley
Tammy Crumley
1710295184
Wonderful person. Handled my problem professionally.
Michael Davis
Michael Davis
1710268193
Dean Snyder
Dean Snyder
1710267701
Very professional and explained everything. I love the fact that they gave me different quotes and I did not feel like they were just trying to get money from me. Our house is only 4 years old and have had nothing but problems with the company that put the system in the house. I FINALLY have peace of mind knowing it was done right. I also really liked the yearly maintenance contract and it was not a crazy amout of money. Thank you for your trained technicians.
D GH
D GH
1708621202
Isaiah & his helper did an extraordinary thorough job and explained the issues and repairs as he did them . 5,star Quality and efficiency! Thank you!!
Jeff Bender
Jeff Bender
1707915099
Punctual, knowledgeable, friendly and reasonable prices.
Janet Brennan
Janet Brennan
1706372415
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.
Diane Acker
Diane Acker
1706287685
The Top Flight team was very professional, I highly recommend this company for all your heating needs.
Wanda Steen
Wanda Steen
1706191059
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.
George Unkle
George Unkle
1706185802
Professional, on time, very knowledgable, efficient, understanding of urgency to get my furnace uo and running
Kat Scarpato
Kat Scarpato
1705093940
Keith Jacobi
Keith Jacobi
1704931602
Excellent service. Very professional and extremely knowledgeable.
Bob Russell
Bob Russell
1704828374
As new customers with Top Flight, we were visited by Ryan for an initial system inspection and a review of the various customer programs that Top Flight offered.While Ryan's extensive experience and knowledge of our HVAC system were clearly evident, his ability to explain and demonstrate issues or items in normal, understandable ways impressed us the most as a new customer.Top Flight's office staff has been equally helpful. Christina, in particular, has been exceptionally helpful with all our new customer setups and arrangements.We highly recommend that Top Flight be included in anyone's short-list of an Honest and Polite Customer-Focused service from a well-established local firm.
Willie Nelson
Willie Nelson
1704465976
Isiah and Tyler were out to service our furnace yesterday. Very knowledgeable and personable technicians. They explain the service they did and the service contract very well. It was a please having these fellows out for servicing our furnace.
Rox King
Rox King
1704459736
Isaiah was professional and courteous. Took time to explain things.
Melissa Stone
Melissa Stone
1704330719
Average. (I don't give extra stars to companies who demonstrate basic professionalism in being on time or having reasonable customer service). This company is VERY EXPENSIVE! They offer a discount to customers to "become members," which makes their service (which includes way more service than I want or need) appear cheaper by charging smaller monthly payments which add up to much more over a year than others charge for 2 annual maintenance checks. ($420/year for an 1800 sf house, compared to $180/year for the same sized house in Maryland.) This monthly payment plan makes it very difficult to track what service is already paid for and what is being prepaid. Thus they have pioneered a way to keep their hand in your wallet for months after the service has already been provided. No thanks. I don't buy it. They did allow me to cancel -which is apparently unusual for them- although they did not provide a refund for payments I made already for service that I won't get.
Mike Davison
Mike Davison
1703345015
What can I say.....BEST HVAC COMPANY EVER! Since moving to this area I have be unable to find a company to actually listen to me and do proper work. Upon a recommendation from a friend I tried this company out and I was not disappointed. Ryan was extremely professional in diagnosing and fixing my issue. He made the whole process easy and as painless as possible. He gave me many options on new systems and even informed me on state and federal rebates in our area. Isaiah is an excellent technician who loves this work and really did an amazing job. He is also by far the most polite server provider I've ever had in my house period. Taylor rounded out this trio and made this an amazing experience. I'd recommend this company to anyone who doesn't want to be pressured by pushy sales people, "know it all" technicians, and "I know better than you" owners.
kimberly mery
kimberly mery
1703192400
Had another company come out said I need a new unit. Called Top Flight for a 2nd opinion.. from the customer service on the phone and Ryan who came out I can say I cried... honest reliable friendly and caring. Ryan fixed the issue and I couldn't be happier. Definitely got a customer for life. Thank you Thank you Thank you. A million stars if I could. 😁
Glenn Williams
Glenn Williams
1703188664
Excellent service
duran yanez
duran yanez
1703170445
Top Flight completed my project yesterday and did a wonderful job. They kept clear lines of communication along the way, and the price I was quoted is what I paid. When it came to the day of installation, Isaiah and his crew were on time, polite, and came ready to work. It was a two day install and they got the job done.
Dennis Taylor
Dennis Taylor
1702651510
Isaiah Barnes is an excellent technician. He explained everything he did and was friendly and thorough. I would highly recommend him.
Joan Karasinski
Joan Karasinski
1702576176
Ryan from Top Flight is Terrific!He is a TRUE PROFESSIONAL!!We have been a customer for years and highly recommend Top Flight.THANK YOU!Joan and Tom
W hoop
W hoop
1702499536
One of the only companies in the county you can trust to do a honest job in the hvac industry. I had three companies out to try and fix my issue and they either failed to diagnose it properly or lied and said it was an expensive repair in order to upsell a brand new unit. Isaiah quickly identified a bare wire shorting out against a copper pipe in the fan unit and fixed it charging me the proper amount for the service . He is a young smart and determined technician, but most of all he is honest.
Ron Marra
Ron Marra
1702219848
This company is great and has great reviews i haven't had any problems with them however 1 very big tip do not deal with these company's that have no reviews because they have so many bad reviews that they won't list any at all i got ripped off twice by these company's that come in an hour and so on, so i stuck with this company and very satisfied.
Susan J. Martin
Susan J. Martin
1701888476
Very satisfied! Will not use anyone else!!!!if I could do 10 stars, I would!!!!!!
Rob Vogl
Rob Vogl
1701711344
In a nutshell, this company is fantastic!If you're still reading I'm going to elaborate on just why that is. We opened a new small business here in Lewes, DE and when we went seeking a local company to take care of our system they came highly recommended. Ryan reached out to me directly on Facebook to introduce himself and the team. Vey quickly he set me up with Taylor who got the ball rolling. She listened to what we were looking for and sent Mike out to have a look. He was professional and knowledgable in his diagnosis of our newly installed system. For no charge they told me what needed to be repaired and we set a day to do so. Mike and Josh came back (sooner than the appointment time I might add) and did a thorough job gettin our system up and running. Ryan and I talked again about the work and he gave us a very fair price.I am now a subscribing customer and intend to be so long as we are doing business here. I have nothing but great things to say about the entire experience and strongly recommend this team to any business in the state!
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