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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
15 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 Real Tech Heating & AC

Real Tech Heating & AC

5.00(
8
)
Approved Pro

Real Tech Heating & AC

5.00(
8
)
Approved Pro
1 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 HD MECHANICAL INC

HD MECHANICAL INC

5.00(
24
)
Approved Pro

HD MECHANICAL INC

5.00(
24
)
Approved Pro
Super Service Award
Customers say: Quick response
56 local quotes requested
3 years of experience

We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.

"HD Mechanical did an excellent job. After trying to fix my water heater, the tech offered me two solutions, the first to repair the old unit and the second to replace it. I chose to replace the unit because it was 20 years old. He was able to return in two days and spend many hours at my home. The tech was courteous, professional, explained everything and made sure everything was working properly before he left. "

Judy N on December 2025

We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.

"HD Mechanical did an excellent job. After trying to fix my water heater, the tech offered me two solutions, the first to repair the old unit and the second to replace it. I chose to replace the unit because it was 20 years old. He was able to return in two days and spend many hours at my home. The tech was courteous, professional, explained everything and made sure everything was working properly before he left. "

Judy N on December 2025


Avatar for Upright Construction & HVAC

Upright Construction & HVAC

5.00(
14
)
Approved Pro

Upright Construction & HVAC

5.00(
14
)
Approved Pro
Super Service Award
Customers say: Terrific value
30 local quotes requested
3 years of experience

we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Good"

Ernesto A on May 2025

we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Good"

Ernesto A on May 2025


Avatar for Affordable Heating & Air

Affordable Heating & Air

5.00(
3
)
Approved Pro

Affordable Heating & Air

5.00(
3
)
Approved Pro
Customers say: Quick response
28 local quotes requested
6 years of experience

Hello! Nice to meet you. My name is Donna and I am the proud owner of Affordable Heating and Air. I have over 25 years of senior management experience and over 10 years of HVAC knowledge and experience. I am an HVAC contractor, C-20 licensed and insured, that earned my license and does not rent or borrow a license. I believe in doing things the right way, sparing no cost to assure the highest quality of workmanship on all our installations and repairs. We build long term relationships, built on trust and value with all of our clients ,because we do the right thing when no one is looking and we are proud of it! We are grateful for the opportunity to service the community and assist people with High Quality and affordable Heating and Air Conditioning solutions.

"got an accurate quote. had a 40 year old gas furnace. A/C was 10 years old. Eric said it was ok a little undersize. I went ahead and had both the furnace and AC. no surprise. Took Fernando and Frankie most of the day did a great Job installing and clean up. All nice and neat. Old Units and parts hauled away. explain everything when done. Thank you"

Thomas L on January 2025

Hello! Nice to meet you. My name is Donna and I am the proud owner of Affordable Heating and Air. I have over 25 years of senior management experience and over 10 years of HVAC knowledge and experience. I am an HVAC contractor, C-20 licensed and insured, that earned my license and does not rent or borrow a license. I believe in doing things the right way, sparing no cost to assure the highest quality of workmanship on all our installations and repairs. We build long term relationships, built on trust and value with all of our clients ,because we do the right thing when no one is looking and we are proud of it! We are grateful for the opportunity to service the community and assist people with High Quality and affordable Heating and Air Conditioning solutions.

"got an accurate quote. had a 40 year old gas furnace. A/C was 10 years old. Eric said it was ok a little undersize. I went ahead and had both the furnace and AC. no surprise. Took Fernando and Frankie most of the day did a great Job installing and clean up. All nice and neat. Old Units and parts hauled away. explain everything when done. Thank you"

Thomas L on January 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
61 local quotes requested
2 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 Brody Pennell Heating & Air Conditioning

Brody Pennell Heating & Air Conditioning

4.33(
6
)
Approved Pro

Brody Pennell Heating & Air Conditioning

4.33(
6
)
Approved Pro
184 local quotes requested
80 years of experience

In 1999, Pennell Air Conditioning and Brody Heating & Air Conditioning, both in West Los Angeles, merged and became Brody Pennell. Jack Pennell began serving Los Angeles area homeowners in 1945. Today, we carry on that great legacy of outstanding customer service as we continue to serve the next generation of our clientele. Our rapid response fleet is ready to serve you 24/7, when you need us the most. Our friendly technicians are knowledgeable and helpful, and we can fix most any problem you have. We look forward to adding you to the Brody Pennell family.

"great job "

Andrew F on November 2025

In 1999, Pennell Air Conditioning and Brody Heating & Air Conditioning, both in West Los Angeles, merged and became Brody Pennell. Jack Pennell began serving Los Angeles area homeowners in 1945. Today, we carry on that great legacy of outstanding customer service as we continue to serve the next generation of our clientele. Our rapid response fleet is ready to serve you 24/7, when you need us the most. Our friendly technicians are knowledgeable and helpful, and we can fix most any problem you have. We look forward to adding you to the Brody Pennell family.

"great job "

Andrew F on November 2025


Avatar for Southland Heating and Air Conditioning

Southland Heating and Air Conditioning

4.73(
450
)
Approved Pro

Southland Heating and Air Conditioning

4.73(
450
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
98 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.

"Just had a furnace tune up done at my residence. The young technician, Jesus Morales, showed up on time and he did a great job in performing the thorough inspection to ensure that the system was working properly. I want thank Southland Heating for their seasonal reminders and deals."

Eduardo S on October 2024

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.

"Just had a furnace tune up done at my residence. The young technician, Jesus Morales, showed up on time and he did a great job in performing the thorough inspection to ensure that the system was working properly. I want thank Southland Heating for their seasonal reminders and deals."

Eduardo S on October 2024


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
39 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


"From beginning to end, The Right Choice Heating and Air Conditioning Co. provided superior quality customer service and onsite work. From scheduling, to multiple follow-ups and reminders, re-confirming exact appointment time, and the post-inspection follow-up, they have truly impressed us. More importantly, Michael Taib, the technician who performed the work at our home, was indeed a true gentleman and professional. He was extremely knowledgeable and patient. I am familiar with the type of HVAC related work requirements, the lingo, and technician data. I quizzed him several times and he constantly responded with 100% honest and factual answers. He tirelessly worked on both of our HVAC units and performed the necessary services and repair. He was polite, courteous and clean. His most impressive talent was ensuring my wife's absolute confidence in his work after she grilled him with so many questions! We will continue to refer True Choice to all our friend and family! Call them; you will not be disappointed."

Frank N on March 2020

The Right Choice HVAC stands behind our quality installations. Over 10 years in business serving the community, veteran owned, Satisfaction Guaranteed, and workmanship guaranteed.

"From beginning to end, The Right Choice Heating and Air Conditioning Co. provided superior quality customer service and onsite work. From scheduling, to multiple follow-ups and reminders, re-confirming exact appointment time, and the post-inspection follow-up, they have truly impressed us. More importantly, Michael Taib, the technician who performed the work at our home, was indeed a true gentleman and professional. He was extremely knowledgeable and patient. I am familiar with the type of HVAC related work requirements, the lingo, and technician data. I quizzed him several times and he constantly responded with 100% honest and factual answers. He tirelessly worked on both of our HVAC units and performed the necessary services and repair. He was polite, courteous and clean. His most impressive talent was ensuring my wife's absolute confidence in his work after she grilled him with so many questions! We will continue to refer True Choice to all our friend and family! Call them; you will not be disappointed."

Frank N on March 2020

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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