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Find Central a/c service or repairers in Altadena

Avatar for Ellison Air Systems

Ellison Air Systems

4.83(
3
)
Approved Pro

Ellison Air Systems

4.83(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"reliable"

robert h on July 2024

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"reliable"

robert h on July 2024


Avatar for Extreme Cooling & Heating, Inc.

Extreme Cooling & Heating, Inc.

4.93(
75
)
Approved Pro

Extreme Cooling & Heating, Inc.

4.93(
75
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
22 years of experience

Extreme Cooling & Heating is a company that takes pride in what we do. From greeting the customer to doing the job. Our team makes sure that they go Extreme for you and all of our future customers. Give us a call and we will show you why they choose us every time.

"Great Job after "

Max K on January 2026

Extreme Cooling & Heating is a company that takes pride in what we do. From greeting the customer to doing the job. Our team makes sure that they go Extreme for you and all of our future customers. Give us a call and we will show you why they choose us every time.

"Great Job after "

Max K on January 2026


Avatar for Real Tech Heating & AC

Real Tech Heating & AC

5.00(
8
)
Approved Pro

Real Tech Heating & AC

5.00(
8
)
Approved Pro
2 years of experience
Free onsite estimate

At Real Tech Heating & AC, we’re a family business that puts people first. We take pride in doing honest, quality work and treating every home like it’s our own. We’re highly skilled but never pushy — if your system can be repaired, we’ll take the time to fix it right. Every job we do comes backed by a warranty, so you can feel confident knowing our work is built to last. Our goal is simple: reliable comfort and service you can trust.

"Christian came out quickly and after seeing a video was able to diagnose the problem even faster. All it was, was a loose screw but it was definitely way over my head. Glad he managed to come out and fix it though - it’s been hot this October! Thanks so much!"

Travis O on October 2025

At Real Tech Heating & AC, we’re a family business that puts people first. We take pride in doing honest, quality work and treating every home like it’s our own. We’re highly skilled but never pushy — if your system can be repaired, we’ll take the time to fix it right. Every job we do comes backed by a warranty, so you can feel confident knowing our work is built to last. Our goal is simple: reliable comfort and service you can trust.

"Christian came out quickly and after seeing a video was able to diagnose the problem even faster. All it was, was a loose screw but it was definitely way over my head. Glad he managed to come out and fix it though - it’s been hot this October! Thanks so much!"

Travis O on October 2025


Avatar for Southland Heating and Air Conditioning

Southland Heating and Air Conditioning

4.73(
451
)
Approved Pro

Southland Heating and Air Conditioning

4.73(
451
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
80 local quotes requested

Choosing the right Heating and Air Conditioning Contractor is very important. Chances are you are going to make a substantial investment in your new HVAC system with which ever contractor you choose. There is nothing worse than investing a large amount of your hard earned money in a new system and winding up with a system that is noisy, inefficient, and does not perform properly. Or even worse, one that fails prematurely. Surprisingly enough most HVAC Contractors have no formal training. Untrained HVAC Contractors frequently do not size systems properly which could result in improper cooling, very high utility bills, and even systems that fail prematurely. Before you even consider a contractor make sure they are NATE Certified and Air Balance Certified. North American Technician Excellence is the Prestigious Certification of HVAC Competence. Using a NATE certified contractor is like using a surgeon that graduated Harvard Medical School with honors.

"Work was timely and complete "

Drew O on December 2025

Choosing the right Heating and Air Conditioning Contractor is very important. Chances are you are going to make a substantial investment in your new HVAC system with which ever contractor you choose. There is nothing worse than investing a large amount of your hard earned money in a new system and winding up with a system that is noisy, inefficient, and does not perform properly. Or even worse, one that fails prematurely. Surprisingly enough most HVAC Contractors have no formal training. Untrained HVAC Contractors frequently do not size systems properly which could result in improper cooling, very high utility bills, and even systems that fail prematurely. Before you even consider a contractor make sure they are NATE Certified and Air Balance Certified. North American Technician Excellence is the Prestigious Certification of HVAC Competence. Using a NATE certified contractor is like using a surgeon that graduated Harvard Medical School with honors.

"Work was timely and complete "

Drew O on December 2025


Avatar for Canyon City Air

Canyon City Air

5.00(
13
)
Approved Pro

Canyon City Air

5.00(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
55 local quotes requested
3 years of experience

Canyon City Air is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"It was a good service."

Mario g on November 2025

Canyon City Air is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"It was a good service."

Mario g on November 2025


Avatar for Air-Tech Air Conditioning & Heating Inc

Air-Tech Air Conditioning & Heating Inc

4.83(
174
)
Approved Pro

Air-Tech Air Conditioning & Heating Inc

4.83(
174
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
18 local quotes requested

If you're looking for comfort you can count on, you've found the right place! Whether you need service-and need it fast-or you're looking to replace or invest in new equipment for your home, AirTech Air Conditioning & Heating can help. Ask around... our name is well known and respected in because we care about impressing you so much that you'll want to call us next time and every time. Award-winning Air Conditioning & Heating Company including the Angie's List Super Service Award. Free estimates on replacement systems, new installations and duct cleaning/air purification. Servicing all major brands, makes and models for central and ductless/mini-split systems. Financing is available. AirTech is a participating HERO contractor.

"Air-Tech is one of the most professional companies I have ever dealt with. My first contact with the office was exceptional. They had Jose at my house the next day. Jose did a great job of trouble shooting the problem with my furnace and showed me which part was defective. He had to special order the replacement parts which took a few days. Soon after he left, someone dropped off two space heaters to keep our house warm until the parts arrived. Jose then installed the new parts and checked out the entire furnace to see if there were other problems. He took photos to help show what the problem was. He was efficient, conscientious, polite and thorough. The office staff and Jose kept me up to date on when he would arrive at my home. I wouldn’t hesitate to use Air-Tech again if the need arises. They are top notch. "

John H on December 2025

If you're looking for comfort you can count on, you've found the right place! Whether you need service-and need it fast-or you're looking to replace or invest in new equipment for your home, AirTech Air Conditioning & Heating can help. Ask around... our name is well known and respected in because we care about impressing you so much that you'll want to call us next time and every time. Award-winning Air Conditioning & Heating Company including the Angie's List Super Service Award. Free estimates on replacement systems, new installations and duct cleaning/air purification. Servicing all major brands, makes and models for central and ductless/mini-split systems. Financing is available. AirTech is a participating HERO contractor.

"Air-Tech is one of the most professional companies I have ever dealt with. My first contact with the office was exceptional. They had Jose at my house the next day. Jose did a great job of trouble shooting the problem with my furnace and showed me which part was defective. He had to special order the replacement parts which took a few days. Soon after he left, someone dropped off two space heaters to keep our house warm until the parts arrived. Jose then installed the new parts and checked out the entire furnace to see if there were other problems. He took photos to help show what the problem was. He was efficient, conscientious, polite and thorough. The office staff and Jose kept me up to date on when he would arrive at my home. I wouldn’t hesitate to use Air-Tech again if the need arises. They are top notch. "

John H on December 2025


Avatar for Trinity Heating and AC

Trinity Heating and AC

5.00(
33
)
Approved Pro

Trinity Heating and AC

5.00(
33
)
Approved Pro
Super Service Award
Customers say: Quick response
60 local quotes requested
5 years of experience

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Trinity HVAC got in touch with me right away and their communication was excellent, letting me know when someone could come out and they showed up as scheduled. Chris inspected the unit inside and outside to assess the situation then thoroughly explained the problem before doing the work. He provided a follow-up email with the invoice showing the detailed items that were repaired and photos."

Marie B on January 2026

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Trinity HVAC got in touch with me right away and their communication was excellent, letting me know when someone could come out and they showed up as scheduled. Chris inspected the unit inside and outside to assess the situation then thoroughly explained the problem before doing the work. He provided a follow-up email with the invoice showing the detailed items that were repaired and photos."

Marie B on January 2026


Avatar for Trinity Heating and AC

Trinity Heating and AC

5.00(
9
)
Approved Pro

Trinity Heating and AC

5.00(
9
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025


Avatar for Progressive Air, Inc.

Progressive Air, Inc.

5.00(
9
)
Approved Pro

Progressive Air, Inc.

5.00(
9
)
Approved Pro
16 years of experience
Emergency services offered

At Progressive Air Inc we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Greg was great, professional and very knowledgeable and kind. He explained everything in full detail and tested it out as well as made sure our mom could operate it. He pointed out a few other repairs that we need and Weill be returning to complete those repairs as well."

Tamara C on January 2026

At Progressive Air Inc we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Greg was great, professional and very knowledgeable and kind. He explained everything in full detail and tested it out as well as made sure our mom could operate it. He pointed out a few other repairs that we need and Weill be returning to complete those repairs as well."

Tamara C on January 2026


Avatar for RELY HVAC LLC

RELY HVAC LLC

5.00(
4
)
Approved Pro

RELY HVAC LLC

5.00(
4
)
Approved Pro
1 years of experience
Free onsite estimate

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"patient, thorough, knowledgeable and prompt. respectful and responsive when scheduling and during the job. reasonable rates! each one of those traits are hard to find these days, but all together is a treasure. Thanks a bunch!"

ben s on November 2025

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"patient, thorough, knowledgeable and prompt. respectful and responsive when scheduling and during the job. reasonable rates! each one of those traits are hard to find these days, but all together is a treasure. Thanks a bunch!"

ben s on November 2025

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FAQs for central a/c service or repair projects in Altadena, CA

A condenser fan motor is a crucial part of your air conditioner that prevents the compressor from overheating. It pulls heat from your AC unit to cool the refrigerant moving through the condenser coils. This allows your system to blow cool air and keeps everything running smoothly.

The most common causes of AC fan motor failure include loss of lubricant in the system due to overheating and a rusted or leaking run capacitor. Poor lubrication can also cause failure in the belt drive, which may impact the AC fan motor. Weather and electrical components can also affect your AC. For example, a storm could send water into your motor windings and damage the internal components.

Air conditioner fan motors last about 12 years on average, though they can last longer if maintained well. This includes keeping them clean and cooled as needed with annual air conditioner checkups. Routine maintenance is essential to catch AC fan issues early. An HVAC inspection can cost between $70 and $500, while AC cleaning services may range from $100 to $400.

A broken AC fan motor may need replacement because this part usually can’t be repaired. Several things indicate it’s time to replace your AC fan motor, including buzzing noises, a constantly running fan, unusually high energy bills, or an aging system. If you notice these signs, call an HVAC pro for help before the faulty motor starts to strain other parts of the AC system.

There are clear warning signs of a bad AC fan motor, including unusual interruptions in the fan operation. The motor might be malfunctioning if you hear weird noises like grinding or rattling or if the fan continues to spin when the unit is off. These indicators compromise your AC’s cooling performance and increase your energy costs. Addressing these issues immediately by contacting a trusted HVAC professional prevents further damage and safeguards your HVAC's efficiency.

Replacing your AC fan motor takes a professional one to four hours. The technician will start by assessing your system and safely removing the damaged motor. If a new part needs to be ordered, it might take a few days. Once the part is available, your pro will install it properly and make sure your system is running smoothly.

The Altadena, CA homeowners’ guide to central a/c service or repairs

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

  • Detail of a HVAC system outside a brick house

    The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.

  • A boy changing thermostat’s temperature using a smartphone

    Budget for AC coil cleaning costs based on factors such as cleaning frequency, coil type, cleaning method, accessibility, ongoing maintenance, and more.

  • home air conditioner being recharged with freon

    Need an AC Recharge? Here’s how much it costs, what factors affect cost, and what to expect.

  • House humidifier on a return duct

    Wondering who installs whole-house humidifiers? Hire a licensed HVAC technician. Learn what they do, other pro options, and how to hire confidently