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Ductless Mini Split Repair

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Ductless Mini-Split Repair Services in Sussex County, DE


As Delaware residents, we know firsthand that the weather here in the First State can be unpredictable and extreme, making it essential to have a reliable HVAC system to keep you and your family comfortable throughout the year. If you have a ductless mini-split system, you already know these units are durable, efficient, and cost-effective heating and cooling solutions.

However, just like all mechanical systems, ductless mini-splits experience problems here and there, and it can be quite frustrating when something pops up out of the blue. After all, no one likes to deal with a broken-down air conditioner on a hot day or a struggling heater in the middle of a cold winter night. If you’ve got a broken ductless mini-split on your hands, it can be hard to get comfortable, to say the least!

Is your mini-split system experiencing issues? You need a trusted and professional repair service to get your unit back up and running, and that’s where Top Flight Heating & Air comes in! We have years of experience providing ductless mini-split repair service in Sussex County, DE, and the surrounding areas. Our team of certified technicians offers top-notch solutions, using the latest tools and techniques to ensure that your ductless system is fixed quickly and efficiently. Whether it’s a minor issue or a major repair, Top Flight is here to provide you with the best HVAC service in the business! Read on to learn more about our specialties.

DE’s #1 Professional Ductless Mini-Split Repair Company

Top Flight provides prompt and reliable ductless mini-split repair service in Sussex County, DE, as well as new ductless mini-split installation and mini-split maintenance. You can find our trusty technicians working on ductless systems throughout the Sussex County area, primarily in these DE locales:

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

How a Ductless Mini-Split System Works

Have you ever wondered how a mini-split system works? Whether you have your own ductless system or you’re considering ductless mini-split installation in the future, understanding mini-splits can give you a lot of important knowledge about your home’s comfort capabilities. Here’s a little more information about how ductless mini-splits work!

A mini-split system is an advanced modern HVAC system capable of heating and cooling your space without the need for ductwork. Mini-splits can have many benefits in any type of living space, but they are particularly useful for homes or commercial buildings that have additions or rooms that are difficult to reach with traditional ducts. An additional benefit of going ductless is the elimination of dust and dander in the air often seen with traditional ducted systems.

A mini-split system behaves much like a miniature air handler or heat pump. The system consists of an outdoor unit and one or more indoor unit(s), which are connected by a refrigerant line. The outdoor unit contains a compressor, which pumps refrigerant through the system. Indoor units, which are usually mounted on the wall or ceiling, contain an evaporator coil and a fan. These parts allow the unit to operate as both a heater and an air conditioner.

Mini-Split Cooling

When the temperatures rise and you reach for your thermostat to turn on the air conditioning, the refrigerant flows through the evaporator coils, absorbing heat from the room and cooling the air. Since the indoor unit is mounted on the wall or ceiling, the fan can then blow the cool air back into the room without the need for ductwork.

Mini-Split Heating

The system works in the opposite way when heating is required. The outdoor unit still pumps refrigerant through the system, but this time it absorbs heat from the outside air and brings it inside to warm the indoor space. This process is possible even in colder temperatures because the refrigerant is still able to absorb heat from the outside air.

Signs of a Broken Ductless Mini-Split

It can be difficult to tell when these combined heating and air conditioning systems are malfunctioning without advanced expertise, but there are some red flags you can look for. Here are a few signs that indicate you may need ductless mini-split repair service in Sussex County, DE:

Strange Noises

Just like standard air conditioning units, heat pumps, and many other types of HVAC units, faulty mini-splits can quickly become insufferably noisy. If your ductless mini-split is making strange noises like grinding, whistling, or hissing, it could be a sign of a broken fan, a dust-clogged filter, or a faulty compressor. Contact us for repair service, and we’ll get the job done right away.

Uneven Temperatures

Ductless mini-split systems are supposed to be an efficient way to distribute heating and cooling evenly throughout your living space. However, a problem with your heating and cooling system can definitely disrupt your home’s comfort. If specific areas of your house feel too cold or hot while the temperature in other locations seems fine, it could be a sign of a broken thermostat, a faulty installation job, or a refrigerant leak. Schedule a service appointment now, and we’ll take a look at your unit to make sure everything is working as it should.

Poor Airflow

If you notice weak or no airflow from your ductless mini-split unit, or it’s blowing hot air rather than cooling your home, it could be due to a clogged air filter, a damaged fan, or a broken motor. A technician will examine these components to determine whether the installation was handled well and if everything is working correctly. Then, our experts will make any necessary repairs so that your mini-split can once again meet your home comfort needs.

High Energy Bills

Your ductless equipment is designed to be efficient all year long, whether you’re using it to heat or cool your living space. If your monthly energy bills have increased suddenly, but you haven’t changed your ductless mini-split unit’s temperature settings, it could be due to a broken unit working harder to keep your home comfortable. Schedule repair ASAP and save energy, power, and money!

Foul Odors

Yuck, what’s that smell? If your ductless mini-split reeks of dirty socks, mildew, or another obnoxious odor while heating or cooling your home, it could be a sign of a refrigerant leak, mold growth, or a dirty filter. All of these can pose serious problems since leaking water or refrigerant can quickly fill your entire home with toxic mold and mildew. We’ll take care of the job so you don’t have to smell these disgusting scents while heating and cooling your home — or worry about breathing in toxic air!

Common Issues With Ductless Mini-Splits

Customers book ductless mini-split repair services in Sussex County, DE, for all sorts of reasons. However, ductless systems are definitely prone to some problems more often than others. Here are some of the most common problems people run into with their mini-split systems:

Leaking Refrigerant Line

If you notice a loss of cooling or heating capacity, it may be due to a refrigerant leak. Low refrigerant levels can occur due to a hole or crack in the drain line, which can in turn cause ductless systems to work harder than they need to. If you suspect that your mini-split is leaking water or refrigerant, take action ASAP before the problem causes further need for repairs. We can repair or replace the drain line so that your equipment is safe to use once again.

Clogged or Dirty Air Filters

You may not have dirty ducts to worry about when you don’t have ductwork, but HVAC system issues can still cause air quality problems. Dirty air filters can lead to poor air quality, limited airflow, and reduced efficiency. Therefore, it’s important to clean or replace the air filters regularly in all HVAC systems, including mini-split systems.

Frozen Evaporator Coils

If your unit’s coils freeze over, it may be due to a clogged filter, low refrigerant levels, or other issues. This problem is not exclusive to ductless units (it can happen with all types of cooling systems), but your unit can’t operate without a functioning evaporator system. Book repairs with a Top Flight technician now.

Electrical Issues

Just like any household heat pump, electric furnace, or central AC system, ductless units can run into electrical issues. Faulty wiring or electrical components can cause the system to malfunction, leading to reduced efficiency or a complete breakdown. To protect your system from this common problem, hire only experienced professionals for ductless mini-split installation. (It may be tempting to go with the cheapest contractor you can find, but trust us, cutting corners during the installation process can cost you a fortune later down the line.) Once installation is complete, don’t forget to schedule routine maintenance and system check-ups. The cost of investing in maintenance is much lower than having to prematurely replace your system, so it’s just common sense.

Book Ductless Mini-Split Repair Service in Sussex County, DE, Now!

Whether you need a professional ductless mini-split repair company or you’re just starting to think about ductless mini-split installation, Top Flight Heating & Air has a solution for you. From Milton, Lewes, and Rehoboth Beach, to Milford, Millsboro, and Georgetown, DE, our friendly technicians provide home and business owners like you with the comfort you need — all while prioritizing your time, space, and budget. Call us today to get started, and we’ll be there soon!

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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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