Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Pasadena, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Pasadena, CA?

Select your specific project to find the pro for you.

TRUSTED BY PASADENA, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon837
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Pasadena

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+22 more

Serving Pasadena, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Top-notch installation! The new HVAC system is super efficient and the crew explained everything clearly. They handled the entire job with care. I feel the temperature difference immediately?very satisfied!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

Response time3 days
8 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"We noticed a foul smell coming from one of the vents in our HVAC system. We turned the system off and called AC Dave. Dave sent Justin and James to troubleshoot the problem. They quickly found a tear in one of our ducts--and the remains of a dead rodent. They cut open the duct, cleaned it and resealed it. We had heat again, about an hour after they arrived. Very fast and competent service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for MULTI AIR SERVICE LLC
MULTI AIR SERVICE LLC
5.0(
22
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairThermostat - Install or Replace

Serving Pasadena, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Good and immediate service. Ricardo is, punctual, knowledgeable and nice. Ricardo responded immediately and came over a few hours later , ready to work (compared to other service providers I had contacted, who responded by Email requesting $100 plus just to show up for "evaluation"). The problem was that the A/C blower fan has been working continuously even when the thermostat controller is in "off" position. He replaced the internal electronic board with a new board and change some of the gas line pipes into the furnace unit, to bring them up to a modern safety code. The price is a little steep but the customer is happy."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+37

Recommended by77%of homeowners
Avatar for Air Duct Professionals
Air Duct Professionals
4.7(
1,518
)
Air Ducts & Vents - Clean

Serving Pasadena, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Sabaz and his assistant were prompt and cordial. They did a neat job. I will call them again to service my HVAC ducts in the attic.
Thanks guys!
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time1 day
3 neighbors recently requested a quote
Recommended by92%of homeowners
Efficiency Air, Inc.
4.8(
321
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Worked with Tim - was looking for new HVAC system. He was honest and provided the best price for what you got (literally thousands of dollars cheaper from other options I was finding). Was very communicative and easy to work with. He made sure to educate you on the ins-and-outs of HVAC systems, and did not try to upsell you like other companies might do. He and Efficiency Air definitely got me as a new continued client."
A/C Condensers
A/C Condensers
A/C Condensers
A/C Condensers
Canoga Park, Goodman A/C

+50

Response time7 hrs
40 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
5.0(
27
)
Electric Furnace / Forced Air Heating System - RepairCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair+2 more

Serving Pasadena, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Haroon provided excellent HVAC service from start to finish at Help-Me HVAC LLC. He was professional, punctual, and courteous, and he took the time to explain everything clearly. The service was efficient, the workmanship was excellent, and the whole experience was smooth and stress-free. I would definitely recommend Help-Me HVAC LLC and Haroon for reliable HVAC service."
My jobs
My jobs
My jobs
1 neighbors recently requested a quote
Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
4.9(
273
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

The industry's best technicians make the happiest customers. Turn to the pros at All City Plumbing, Air, & Electrical for all of your plumbing, HVAC, and electrical needs. Proudly serving San Bernardino, Riverside, Los Angeles, and Orange Counties. We have over 5000s 5 star reviews across the web from our thrilled customers. Our company goal is to make sure that we have 100% customer satisfaction. We have options and payment plans that can fit in everyones budget. We provide free estimates and you only pay when you're happy. It's no surprise we've received the Angie's List Super Service Award six years in a row! Established in 2009. ACP was created to deliver exceptional service with the highest quality of craftsmanship. We guarantee you will be happy with our services in that we offer a money back guarantee. Our technicians are regarded by their peers to be some of the best in the industry. Our service experts are continuously trained. There isn't a plumbing or hvac problem we can't solve. We have the experience, knowledge and focus to solve any problem you may have. Give us a call today and let us earn your confidence.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+42

11 neighbors recently requested a quote
Recommended by96%of homeowners
...
Showing 1-10 of 923
Heating and Air Conditioning questions, answered by experts

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

Not if you have a standard unit. Because portable AC units actually work to dehumidify the room, you’ll likely need to drain the unit from time to time—but you won’t have to put water into it. There is, however, another type of air conditioner called a swamp cooler that requires water to operate. If you have a swamp cooler, you may need to fill a reservoir with water and potentially ice. But a swamp cooler is different from a standard portable AC unit.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

You can buy R-22 refrigerant for your home air-conditioning system through your local AC repair specialist, who can also refill your R-22 system as needed. You may find that the cost of R-22 has gone up due to shortages as the EPA banned this refrigerant. Ask your pro to inspect your system for any leaks or issues.

Choosing a unit with higher BTUs can use more electricity if the BTUs are more than what’s necessary for your room size. However, choosing an AC with BTUs that match the size of your room or house, your unit will cool your space efficiently. On the flip side, choosing a system with not enough BTUs can cause the system to work harder to try to cool the space, leading to more electricity consumption and higher energy bills.

The Pasadena, CA homeowners’ guide to heating and air conditioning services

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