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

Avatar for Air Specialist
Air Specialist
4.5(
182
)
Central A/C - Install

Serving Pasadena, TX and surrounding areas

Approved

In business since 1970

Free estimates

Emergency services offered

"While having our air ducts cleaned, mildew was discovered on the inside the supply plenum on our A/C unit in the attic (possibly from all the moisture Harvey dumped on us for days). Although the unit was only four years old, we decided it was best to replace it before it got worse. To hopefully avoid this type of problem in the future, we wanted to install some form of UV light in the plenum after it's replacement, but we were very concerned about the ozone that's released into the home's air from some of these types of lights. Matthew from Air Specialist listened and addressed all of our concerns about UV lights, and gave us information about each type on the market and which ones would address our concerns. After research, we decided on one of the Lennox UV lights and Matthew installed it for us. So far we've had no problems with this UV light, and we continue to be happy with Air Specialist's work."
23 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for AKKO Air Conditioning & Heating Services
AKKO Air Conditioning & Heating Services
4.9(
92
)
Central A/C - InstallCentral A/C - Service or RepairAir Ducts & Vents - Clean+1 more

Serving Pasadena, TX and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

"Andres was very helpful and friendly. My AC was not blowing cold air and he quickly identified the problem and fixed it. I appreciated the time he took to explain what he noticed and the tips that he gave me to make sure my unit will continue to last."
Installations
Installations
Installation
Response time2 hrs
Response rate96%
8 neighbors recently requested a quote
Avatar for Vanderford Air & Plumbing
Vanderford Air & Plumbing
4.5(
204
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Pasadena, TX and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Our compressor went out on our 15 year old upstairs unit which ran R-22 so we had to replace everything. Les was extremely knowledgeable and was able to diagnose and fix the cooling issues I was having in my house. The other three contractors I had bid the job did not explain anything......seemed like they just wanted to sell me the equipment and get out. Before Vanderford came a few of our rooms where as much as 10 degrees different than other rooms in the house with both downstairs and upstairs AC set at the same temps. Now all rooms in the house are nearly the same temp at all times of day. I also opted for a two stage unit so I'm looking forward to my energy bills being lower. Thanks Vanderford and Les!"
Electric Heat System W/Ductwork
Vanderford Select outdoor condenser
Ductless System Installation
American Standard Condenser Installed
American Standard Furnace Installation

+15

23 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Air Heating & Cooling
Air Heating & Cooling
4.9(
65
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Pasadena, TX and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"I am a repeat customer of Air Heating & Cooling. They first replaced my AC unit in 2007 and did a great job. The unit lasted 15 years, about average. I got that unit replaced today, and again, they did a great job. They came in, laid cloth out on their work paths and got down to business. It took them 6 hours to replace my outside AC unit + the coil unit in the attic. They swept up their work debris, and double checked the work, which I personally inspected. I highly recommend these guys just because of professionalism alone, the fair price I paid because they are a low overhead unit is hard to match in Houston for the same, or even better quality work. JVillarreal Missouri City, Tx."
Our work
Our work
Our work
Response time1 day
13 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Affordable AC Service
Affordable AC Service
4.9(
88
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Pasadena, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Credit card accepted

"My husband and I are delighted with Affordable AC Service’s job. They made a diagnosis at no cost. They repaired our AC and replaced the AC compressor and coil at a very convenient price. They were very professional, courteous, and efficient. We highly recommend them. They are the best!"
AMERICAN STANDARD
COMPLETE SYSTEM VARIABLE SPEED BLOWER
COMPLETE 14 SEER SYSTEM
COMPLETE RUUD SYSTEM
COMPLETE DAIKIN UPFLOW UNIT

+6

Response time9 hrs
7 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Kelly's
Kelly's
4.9(
54
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Pasadena, TX and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"It was excellent!! I suffer with Asthma and allergies the duct cleaning disinfecting really help me. Right now I am not coughing and I feel GREAT. You must TRY!!! Thank you KELLY'S Air Conditioning and Heating"
Air Duct Cleaning
insulation
HVAC
Furnace Install
Furnace Install

+15

Response time10 hrs
26 neighbors recently requested a quote
Recommended by76%of homeowners
Boyd Services, LLC
4.8(
278
)
Air Ducts & Vents - Clean

Serving Pasadena, TX and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

"Tod Boyd was very professional. He explained what needed to be done to balance the air flow in all of the vents. He gave me a reasonable bid on the project without trying to up charge me on other unnecessary items, like some competitors. He was on time and successfully completed the job. I would definitely recommend his services."
1 neighbors recently requested a quote
Recommended by62%of homeowners
Avatar for J Tullos Services
J Tullos Services
4.9(
106
)
Central A/C - Install

Serving Pasadena, TX and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"When our AC system needed to be replaced Jon gave us an estimate and began work as soon as possible. We were out of town and our adult son was there to allow Jon and his crew to complete the work. Jon kept us informed every step of the way. We also had the upstairs duct work replaced which need to be replaced. When we returned home the completed work was well done as we expected. A few days before we arrived home the downstairs AC stopped working which Jon had installed. First chance he got came over and resolved the problem. Now that's how a family works together. Much appreciated Jon for jobs well done. Enjoy your day."
New system
old evaporator
just coil replacement
old to new
start of install

+48

Response time3 hrs
Response rate94%
18 neighbors recently requested a quote
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Air Conditioning FAQs, answered by experts

You may never need an AC recharge if there are no leaks. However, if your AC unit has a leak that cannot be patched appropriately, you’ll need an AC recharge every time the freon level drops low enough that it disrupts your system—this could be once every two to three years. It all depends on the size and frequency of the leak.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

An AC drip pan may stop draining if there’s a clog where the drip pan connects to the drain line. Clogs can form from a lack of cleaning or from rust or corrosion buildup. Cleaning the drip pan at least once per month lowers the chances of debris clogging the drain line.

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.

The Pasadena, TX homeowners’ guide to air conditioning services

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