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Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Global Green Solutions did an excellent job replacing our old air conditioning system. The team arrived on time, worked efficiently, and made sure everything was installed properly. Our home feels much more comfortable now and the whole process was smooth."
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+24

Response time3 days
10 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Air-Tech Air Conditioning & Heating Inc
Air-Tech Air Conditioning & Heating Inc
4.5(
202
)
Central A/C - InstallAir Ducts & Vents - CleanCentral A/C - Install - For Business+4 more

Serving Altadena, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"We had hired Air-Tech in 2019 for a whole-house, ductless system. That system still works flawlessly, and we needed another unit for a permitted garage conversion/ADU. We were also in a time-crunch, as our final inspection is coming up, and heating/ac is needed for approval. Though due to the high season, we were quoted about 4 weeks, it took "about 3 days"! We were surprised to hear that they would make a special trip to install our unit. Same, familiar faces as the original system, and same GREAT and personable service (most polite techs in ANY industry, and we know, as we have done lots to our house over the last 7 years). 5 hours later and we had ice-cold air blowing in our new addition, very tidy installation inside and out, and we are all set for final approval by the building inspector AND years of enjoyment. We added the service contract, so these pros can keep our whole house system including the addition, in tip-top shape, under warranty and lasting for years to come. GREAT Job and THANKS A MILLION, AIR-TECH!"
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+8

Response time5 hrs
42 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"I called and they sent someone out the next day. They were prompt and efficient and most of all the swamp cooler was repaired. The price they charged was excellent. I also signed up for a maintenance contract based on how well they took care of this problem. There are not a lot of places left who service swamp coolers so this was a good find. I have already recommended them to my sister for service on the air conditioning system in her home."
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+6

Response time7 hrs
Response rate100%
6 neighbors recently requested a quote
Efficiency Air, Inc.
4.8(
321
)
Central A/C - Install

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Efficiency Air Inc is a fabulous company with excellent customer service and trained professional installers. I received a quote to install a mini split air conditioner/heat pump and we were overjoyed of the quality of work we received. They showed up on time and installed the system with ease. The install Manager â Deanâ was a true leader and got everything needed accomplished. I would recommend Dean and crew to anyone needing quality service. Thank you again for everything. Your lifetime customer Nathaniel G Santa Clarita, CA"
A/C Condensers
A/C Condensers
A/C Condensers
A/C Condensers
Canoga Park, Goodman A/C

+50

Response time7 hrs
160 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Temp Air System, Inc.
Temp Air System, Inc.
4.8(
59
)
Central A/C - InstallAir Ducts & Vents - CleanCentral A/C - Service or Repair+1 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"We had Temp Air install our AC unit. The best decision we ever made. They were fast, reliable and dependable. Excellent customer service, did a phenomenal job. After a couple of years something was going on with our unit, I called them and immediately they send out a technician Juan, who was phenomenal. He explained what the issue was and resolved it asap! Highly recommend this company!"
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation
Mini Split Installation

+14

Response time10 hrs
Response rate99%
7 neighbors recently requested a quote
Avatar for Top Energy Solutions, Inc.
Top Energy Solutions, Inc.
4.9(
62
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business

Serving Altadena, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"I highly recommend Top Energy Solutions. During the heat wave my air conditioning system blew out hot air. I expected to wait days for a technician to come out. Leor sent one the next morning. The technician quickly located the problem and fixed it within minutes. Their employees are professional, courteous and very knowledgeable."
Roof Replacement  - Owens Corning Shingle Roof
New Windows Installation in Hollywood
5 Ton Furnace Replacement
Attic insulation
New Mini Split - Daikin Emura

+87

Response time1 day
Response rate98%
6 neighbors recently requested a quote
Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
40
)
Central A/C - Service or Repair

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"I asked for help on Yelp where a Rat got stuck in my air condition system the exterminator told me I'd have to call the company to come out and remove the unit, not only did Chris call very fast he came out very quickly and said that very unusual request but will be able to do it and remove the rodent acid wash the unit and even did the second unit where he didn't have to this is a great company and I had given my daughter his number to get in AC unit they wanted in the house because you could trust this person 100% a great company and a great person"
Furnace Before
AC After
Furnace After
AC Before
Before - Furnace

+83

Response time3 hrs
Response rate98%
43 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

Evaporator coils in HVAC systems typically last around 10 to 15 years. However, their life span can be longer or shorter based on factors like the frequency of your HVAC system usage, whether regular maintenance is performed, and environmental conditions. Regular maintenance, such as HVAC system cleaning and coil inspection, can extend the durability and efficiency of your evaporator coil.

You should use a breathable, weather-resistant cover with ventilation. It can be a top cover or a full cover that has mesh to allow airflow. A full, non-breathable cover can cause moisture to build up, leading to rust, frozen parts, and corrosion. A full cover also attracts unwanted critters, such as mice, that can damage the wiring and your unit. If you need to protect your AC unit from falling icicles, choose a sturdy top cover or piece of wood that prevents icicles from damaging your unit.

There are a few ways to reduce your electricity bills if you use window AC units to keep cool. Set the unit temperature at least 1 degree higher than it is currently to reduce costs. Keep the unit clean for it to run efficiently. You may want to hire a window AC specialist near you to inspect the unit once a year and keep it in tip-top shape.

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

A frozen coil can cause permanent damage to your HVAC system and lead to costly repairs if not fixed. It can cause the unit to overheat and also cause the compressor to fail. It’s vital to turn the unit off if the coil is frozen and address the issue as soon as possible. 

The Altadena, CA homeowners’ guide to air conditioning services

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