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Best air conditioning pros near Dover, DE

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Top-Rated Air conditioning pros in Dover - Updated Nov 2026

Avatar for Major league hvac
Major league hvac
5.0(
21
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+3 more

Serving Dover, DE and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Mike and his team did a great job with installation of a complete new HVAC system involving a ducted system on the 1st floor and mini splits on the 2nd floor (this set up best accommodated our house for function and zoning). Their experience and knowledge was demonstrated by their well planned work and installation, including working around existing conditions such as tight crawl spaces, as well as coordination with existing plumbing, electrical, structural components, etc. They coordinated and were accommodating of requests for equipment and vent locations. And they started and completed the work as promised. I would highly recommend them."
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+6

7 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Top Flight Heating & Air
Top Flight Heating & Air
4.9(
39
)
Central A/C - Service or RepairCentral A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Dover, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Very quick and timely response for a non-functioning ac unit. Found the problem quickly and replaced part. Clearly explained the problem and all options. Was so impressed I subscribed to have them as our service provider."
Repair Heat
Adjust Thermostat
Check Electrical
Check Refrigerant
Photos

+50

Response time7 hrs
7 neighbors recently requested a quote
Recommended by59%of homeowners
Avatar for Aire Serv of Newark & Middletown
Aire Serv of Newark & Middletown
4.7(
38
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+3 more

Serving Dover, DE and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"First class service from the initial call through the install. Chris and Jeff were on time for services and completed the job in a timely manner. Very impressed with their professionalism, communication and quality of work. I will be using Aire Serv for all of my future services and repairs. I highly recommend Aire Serv to anyone in the area."
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+128

24 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for One Hour Heating & Air Conditioning
One Hour Heating & Air Conditioning
4.4(
108
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Dover, DE and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Now, they are One Hour Heating & Air Conditioning. In spite of our area having a heat wave, they were able to come out in less than 2 hours of my call. Joe J. fixed the problem in less than an hour, and my A/C was back on. Great price, too."
Project Photos
Response time3 days
Response rate100%
21 neighbors recently requested a quote
Avatar for Horizon Services, LLC (DE)
Horizon Services, LLC (DE)
3.8(
1,298
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Dover, DE and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Had an appointment for annual maintenance checkup. The Horizon tech was ontime, neat and polite. He checked all the routine items and resolved all of my concerns. He made a couple of recommendations for cleaner air circulation. All services were performed on my maintenance contract for no charge. This is the second heatpump that I've purchased from Horizon."
Horizon Services HVAC
Horizon Services HVAC
Horizon Services HVAC
Horizon Services HVAC
Horizon Services HVAC

+18

11 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Prism Enterprises Parent Company, LLC
Prism Enterprises Parent Company, LLC
4.7(
396
)
Air Ducts & Vents - Clean

Serving Dover, DE and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

"Mark and helper climbed their ladder outside to the Soffit under the roof overhanging. They cleaned the vent and ran a brush all the way down to the clothes dryer. Now my clothes are dry and the amount of dust has increased due to the opened pathway. Any dust that came outside was cleaned up. Great job. Thanks!"
Scramble?
11 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Elite HVAC-R Service
Elite HVAC-R Service
5.0(
7
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Dover, DE and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"I had a great experience with Nate. He was extremely knowledgeable about A/C systems and was far more well-versed than many other companies in the area. He took the time to explain everything clearly, answer my questions, and make sure I understood the issue and solution. Nate was also very friendly, professional, and informative throughout the entire visit. I truly appreciated his expertise and excellent customer service. I would highly recommend Nate to anyone needing HVAC service."
3 neighbors recently requested a quote
Avatar for Done Right Today, Inc.
Done Right Today, Inc.
4.8(
582
)
Central A/C - Service or Repair

Serving Dover, DE and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I had Montrell install some gas pipe for a dryer hook up. He is an absolute professional. Above and beyond what I expected. He was so good, I asked for him by name the next time I needed plumbing done. He connected my fridge water line."
My jobs
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Response time1 day
Response rate100%
160 neighbors recently requested a quote
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Air Conditioning FAQs, answered by experts

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

No, it's not safe to keep using your unit when it's frozen. Not only can running a frozen unit lead to damage, but it can also potentially overheat, making it a fire hazard. Therefore, it's always best to turn off the AC unit as soon as you notice any ice.

The best way to save money on HVAC repairs is by regularly having your system inspected and maintained. This can prevent bigger problems and costly repairs and replacements in the future. It’s also smart to buy quality equipment and hire companies that provide warranties on equipment and labor. If you need repairs, you may be able to save money by cashing in on rebates and incentives or keeping the area around your HVAC unit clear to shorten the time your contractor needs to spend in your home.

You should clean your air conditioner at least once per year, but you may need to clean your whole HVAC system (including the air ducts) more often. According to the National Air Duct Cleaners Association, you may need to clean them more frequently depending on factors like whether you smoke, have pets, or have allergies.

You will only need to refill your AC with refrigerant if it has a leak. Otherwise, a modern, well-maintained AC will most likely never need a recharge. You may notice a leak in an older system if your bills are higher, you hear a hissing sound, or if the air is blowing out hot.

The Dover, DE homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.