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Verified Reviews for Air Conditioning pros in Derby, CT

*The Angi rating for Air Conditioning companies in Derby, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

*The HomeAdvisor rating for Air Conditioning companies in Derby, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

Last update on July 21, 2026

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

Avatar for Tyler Heating, Air Conditioning and Refrigeration LLC
Tyler Heating, Air Conditioning and Refrigeration LLC
4.6(
132
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+3 more

Serving Derby, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"Every aspect of my interaction with Tyler Heating, Air Conditioning and Refrigeration was exemplary! From sales to administrative support to the install technicians met all of my expectations."
Carrier Ductless Heat Pump Condenser
Carrier Performance Ductless Heat Pump High Wall Air Handler
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+172

Response time2 days
Response rate100%
3 neighbors recently requested a quote
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Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
44
)
Air Ducts & Vents - Clean

Serving Derby, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Wornderful job from the guys they were on time and left the house in excellent condition after the job was done, will definitely recommend them to my family and friends."
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+2

Response time7 hrs
Response rate100%
6 neighbors recently requested a quote
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Avatar for Y & M Airduct Service
Y & M Airduct Service
4.9(
144
)
Air Ducts & Vents - Clean

Serving Derby, CT and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"The Y & M Airduct Service...I will definitely use them in the future. They did an excellent job cleaning the air ducts and the dryer duct in my condo.Thoroughly explained the process and their service options.They were on time and very professional. Very happy with the service and the outcome."
Airduct
Airduct
Airduct
Airduct
Response time8 hrs
92 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Petro Home Services
Petro Home Services
4.4(
1,786
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Derby, CT and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"I contacted a man I had spoken with last year so it was quick, easy, and painless to get set up. I will have them come out next month to do the first cleaning."
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Response time6 days
Response rate100%
18 neighbors recently requested a quote
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Avatar for MTL Heating & Cooling
MTL Heating & Cooling
4.7(
142
)
Central A/C - Service or Repair

Serving Derby, CT and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Had my furnace cleaned. Price was reasonable. The technician was friendly and prompt. Very sstisfied with choice."
Viessman boiler oil to gas conversion Orange
Peerless oil boiler/Amtrol indirect water heater
Navien Boiler oil to gas conversion Stratford
Day & Night gas furnace New Haven
Peerless gas boiler West Haven

+4

Response time8 hrs
Recommended by98%of homeowners
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Avatar for Clean Air Dream Team Inc.
Clean Air Dream Team Inc.
4.8(
38
)
Air Ducts & Vents - Clean

Serving Derby, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Emergency services offered

Warranties offered

"We had a great experience with Clean Air Dream Team! They did a very good job cleaning our air ducts and removing the black mold from our vents. They were professional, thorough, and made sure the job was done properly. We’re very happy with the results and would definitely recommend Clean Air Dream Team to anyone who needs their air ducts cleaned. Andre was great!"
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+17

Response time1 day
Response rate100%
3 neighbors recently requested a quote
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Avatar for H L Bowman
H L Bowman
4.6(
430
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Derby, CT and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"I had my mini split systems for two apartments cleaned. Brett did a fine job!"
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+6

460 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Celco Heating & Air Conditioning
Celco Heating & Air Conditioning
4.3(
128
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Derby, CT and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"Great techs & back office service. They know their stuff - assisted with the rebates & got the job done timely & cleanly. New heat pump / AC works great, Thanks all -Steve"
My work.
wall hung MItsubishi
various projects
various projects
various projects

+8

Response time1 day
26 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Hillcrest Fuel, Inc.
Hillcrest Fuel, Inc.
4.6(
75
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Derby, CT and surrounding areas

Approved

In business since 1938

Free estimates

Emergency services offered

"They were great! Even found a way of adding a 40 gallon water heater to a smaller space. Which has been wonderful! They worked in a VERY tight space and got the job done! I highly recommend them! Will be using them to install my central air as well!"
Fujitsu Heat A/C Heat Pump
American Standard Air Conditioning
95% Alpine Boiler Nat Gas
Burnham X2 Gas Boiler
Burnham X2 Gas Boiler

+1

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Northeast Heating & Cooling
Northeast Heating & Cooling
5.0(
8
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Derby, CT and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"I don’t usually write reviews, but I felt like I had to for this one. I’d been dealing with an ongoing furnace problem for weeks and had a couple other companies come out but nobody could give me a straight answer or actually fix the issue. When Enea from Northeast Heating and Cooling showed up, he figured it out almost immediately. He was able to explain to me what was wrong in simple terms, fix the problem on the spot, and even made sure it won’t happen again. The technician was professional, thorough, and you could tell he actually knew what they were doing. After all the frustration I had before, their service was honestly a huge relief. Highly recommend them."
Trane Furnace
Exposed Spiral Duct
Response time6 hrs
Response rate100%
6 neighbors recently requested a quote
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Showing 1-10 of 205
Air Conditioning FAQs, answered by experts

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

Yes, it's normal for air conditioners to leak tiny amounts of water due to condensation. Under normal circumstances, all excess moisture travels to the drain pan to be pumped through your system's drain line. You should call a technician to diagnose the issue if you're noticing frequent leaking or pooling. It's also important to investigate if your homeowners insurance can cover water damage.

A new air conditioner capacitor will cost less than replacing the entire air conditioner system. While a capacitor itself will cost between $8 and $25, paying a professional to replace an AC capacitor will cost $180 on average. It’s not safe to replace an air conditioner capacitor on your own. 

If you’re shopping around for a rooftop AC unit, you may hear them referred to as “package units.” That’s because rooftop AC systems are all-in-one heating and cooling units that connect directly to your home’s ductwork. If your AC repair pro references a package unit, they are referring to the system on your roof.

Yesh, heat pumps can easily cool homes when the weather reaches over 100 degrees Fahrenheit, just as powerful air conditioners can. The key is sizing the heat pump correctly for the size of your home and your climate. A local heat  pump professional can help you determine the right size and type for your home.

The Derby, CT homeowners’ guide to air conditioning services

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

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