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Find Central a/c service or repairers in Duarte

Avatar for RS Air Conditioning & Heating

RS Air Conditioning & Heating

139 Crescent Glen Drive
4.97(
21
)
Approved Pro

RS Air Conditioning & Heating

139 Crescent Glen Drive
4.97(
21
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 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 customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Ray responded in a timely manner and was very thorough in diagnosing and explaining the problem. I would highly recommend him and plan to use him for any future needs."

tome z on October 2022

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 customer service from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Ray responded in a timely manner and was very thorough in diagnosing and explaining the problem. I would highly recommend him and plan to use him for any future needs."

tome z on October 2022


Avatar for Net Blue HVAC

Net Blue HVAC

15193 Hawthorn Ave
5.00(
2
)
Approved Pro

Net Blue HVAC

15193 Hawthorn Ave
5.00(
2
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

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! Book with us online or feel free to give us a call today!

"This company never failed to impress me. I was truly blown away by the service I received from them as they addressed my HVAC air conditioning repair needs yesterday. The technician was intelligent, diligent, and expert about the service. I will highly recommend this company to everyone."

Jack L on April 2022

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! Book with us online or feel free to give us a call today!

"This company never failed to impress me. I was truly blown away by the service I received from them as they addressed my HVAC air conditioning repair needs yesterday. The technician was intelligent, diligent, and expert about the service. I will highly recommend this company to everyone."

Jack L on April 2022


Avatar for Service All Stars Heating and Air Comfort

Service All Stars Heating and Air Comfort

17620 Bellflower Blvd, A116
4.72(
109
)
Approved Pro

Service All Stars Heating and Air Comfort

17620 Bellflower Blvd, A116
4.72(
109
)
Approved Pro
Customers say: True professional
22 local quotes requested
11 years of experience

Service All-Stars Plumbing, Heating & Air At Service All-Stars, we deliver innovative comfort solutions with integrity and a smile. For over 25 years, we’ve built trusted relationships by listening to our customers, understanding their needs, and providing reliable plumbing, heating, and air solutions that bring peace of mind. We are licensed, bonded, and insured, so you can count on us for professionalism and protection at every step. Guided by our five principles of excellence—Service, Reliability, Integrity, Quality, and Value—we’re committed to keeping your water flowing, your home warm in the winter, and cool in the summer with superior equipment and materials on every job. We treat your home or business as if it were our own: doing the job right the first time, leaving every space clean, and standing ready for you, even in emergencies. With Service All-Stars, you get more than solutions you get a team that cares. Because for us, our customers are our number one asset!

"All the people sent to my home were professional, friendly and efficient. Eric, the repair tech, had to give me the bad news that my furnace was not repairable. He listened to my requirements and desires for the replacement and gave me a solution that matched at a reasonable cost. Novlin and Brandon came the next day to install the unit. They were careful of my home and floors. They installed the new furnace quickly and efficiently. They cleaned up after themselves very well. Before leaving, they showed me pictures of the work in the areas that I couldn't easily get to like the attic and roof. I'm very happy with the whole project"

Kathleen M G on October 2023

Service All-Stars Plumbing, Heating & Air At Service All-Stars, we deliver innovative comfort solutions with integrity and a smile. For over 25 years, we’ve built trusted relationships by listening to our customers, understanding their needs, and providing reliable plumbing, heating, and air solutions that bring peace of mind. We are licensed, bonded, and insured, so you can count on us for professionalism and protection at every step. Guided by our five principles of excellence—Service, Reliability, Integrity, Quality, and Value—we’re committed to keeping your water flowing, your home warm in the winter, and cool in the summer with superior equipment and materials on every job. We treat your home or business as if it were our own: doing the job right the first time, leaving every space clean, and standing ready for you, even in emergencies. With Service All-Stars, you get more than solutions you get a team that cares. Because for us, our customers are our number one asset!

"All the people sent to my home were professional, friendly and efficient. Eric, the repair tech, had to give me the bad news that my furnace was not repairable. He listened to my requirements and desires for the replacement and gave me a solution that matched at a reasonable cost. Novlin and Brandon came the next day to install the unit. They were careful of my home and floors. They installed the new furnace quickly and efficiently. They cleaned up after themselves very well. Before leaving, they showed me pictures of the work in the areas that I couldn't easily get to like the attic and roof. I'm very happy with the whole project"

Kathleen M G on October 2023


Avatar for Darrin Durbin

Darrin Durbin

32241 CAMINO CAPISTRANO A-106
4.94(
66
)
Approved Pro

Darrin Durbin

32241 CAMINO CAPISTRANO A-106
4.94(
66
)
Approved Pro
Customers say: Quality work
83 local quotes requested
8 years of experience

Darrin Durbin is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Tim and his assistant Stan did a thorough inspection of my AC unit. While they recommended some work, they also said it was not completely necessary. They did not create work, they were completely honest in their assessment. I will definitely use them when it is time for repair or a new unit."

John M on September 2025

Darrin Durbin is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Tim and his assistant Stan did a thorough inspection of my AC unit. While they recommended some work, they also said it was not completely necessary. They did not create work, they were completely honest in their assessment. I will definitely use them when it is time for repair or a new unit."

John M on September 2025


Avatar for SoCal Climate Control - LA

SoCal Climate Control - LA

19201 Parthenia Street
4.44(
347
)
Approved Pro

SoCal Climate Control - LA

19201 Parthenia Street
4.44(
347
)
Approved Pro
Customers say: True professional
1072 local quotes requested
7 years of experience

With over 30 years of combined experience in the HVAC industry, SoCal Climate Control & Mechanical, Inc. is your industry expert in Southern California. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"David Parks Senior HVAC Technician was very knowledgeable and listened to my needs. Susie in the office was polite and a joy to speak to. The crew that installed the ductwork worked efficiently and cleaned up afterwards. SoCal Climate Control did everything they promised at a reasonable price. I would recommend them to my neighbors and family members."

Greg V on October 2024

With over 30 years of combined experience in the HVAC industry, SoCal Climate Control & Mechanical, Inc. is your industry expert in Southern California. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"David Parks Senior HVAC Technician was very knowledgeable and listened to my needs. Susie in the office was polite and a joy to speak to. The crew that installed the ductwork worked efficiently and cleaned up afterwards. SoCal Climate Control did everything they promised at a reasonable price. I would recommend them to my neighbors and family members."

Greg V on October 2024


Avatar for MSP Heating and Air, LLC

MSP Heating and Air, LLC

2932 Rubidoux Blvd, Ste B
4.93(
286
)
Approved Pro

MSP Heating and Air, LLC

2932 Rubidoux Blvd, Ste B
4.93(
286
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
337 local quotes requested

We at MSP HEATING AND AIR focus on quality HVAC services over quantity. We use our years of experience and expertise, to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed! Please call us today for an estimate. We look forward to working with you! we keep your privacy

"Great service. Will use again for certain "

Mike L on September 2025

We at MSP HEATING AND AIR focus on quality HVAC services over quantity. We use our years of experience and expertise, to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed! Please call us today for an estimate. We look forward to working with you! we keep your privacy

"Great service. Will use again for certain "

Mike L on September 2025


Avatar for Climate Specialists

Climate Specialists

124 Gunsmoke Dr
4.92(
12
)
Approved Pro

Climate Specialists

124 Gunsmoke Dr
4.92(
12
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

Welcome to Climate Specialists, your trusted HVAC experts in Diamond Bar. With over 25 years of experience, we have been servicing both residential and commercial properties with top-notch installations and repairs. Our professionalism and commitment to getting the job done right the first time sets us apart from our competitors. At Climate Specialists, we understand the importance of having a comfortable and functional living or working space. As a veteran and family-owned business, we take pride in providing exceptional service to our community. Our dedication to quality work and competitive pricing has made us a trusted name in the HVAC industry. When you choose Climate Specialists, you can trust that your HVAC needs will be taken care of. Contact us today for all your HVAC needs and experience the difference of working with a company that puts your satisfaction first. Let us keep you cool in the summer and warm in the winter with our top-notch services.

"Really wonderful experience. Super fast communication and able to come out quickly to fix my furnace. They were very professional while at my home and honest. Trouble shot the issues until they found what was wrong. I would definitely hire them again and recommend to others."

Dorothy R on February 2024

Welcome to Climate Specialists, your trusted HVAC experts in Diamond Bar. With over 25 years of experience, we have been servicing both residential and commercial properties with top-notch installations and repairs. Our professionalism and commitment to getting the job done right the first time sets us apart from our competitors. At Climate Specialists, we understand the importance of having a comfortable and functional living or working space. As a veteran and family-owned business, we take pride in providing exceptional service to our community. Our dedication to quality work and competitive pricing has made us a trusted name in the HVAC industry. When you choose Climate Specialists, you can trust that your HVAC needs will be taken care of. Contact us today for all your HVAC needs and experience the difference of working with a company that puts your satisfaction first. Let us keep you cool in the summer and warm in the winter with our top-notch services.

"Really wonderful experience. Super fast communication and able to come out quickly to fix my furnace. They were very professional while at my home and honest. Trouble shot the issues until they found what was wrong. I would definitely hire them again and recommend to others."

Dorothy R on February 2024


Avatar for Trinity Heating and AC

Trinity Heating and AC

3148 E La Palma Avenue, Unit H
5.00(
27
)
Approved Pro

Trinity Heating and AC

3148 E La Palma Avenue, Unit H
5.00(
27
)
Approved Pro
Customers say: Quick response
59 local quotes requested
4 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!

"They were prompt, professional and fairly priced. It was a very good experience. "

James H on September 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!

"They were prompt, professional and fairly priced. It was a very good experience. "

James H on September 2025


Avatar for Four Seasons Heating and Air LLC

Four Seasons Heating and Air LLC

3111 East La Palma Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Four Seasons Heating and Air LLC

3111 East La Palma Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
15 local quotes requested
2 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.

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.


Avatar for Western Air Mechanical

Western Air Mechanical

260 West Arrow Hwy, Suite E
4.58(
152
)
Approved Pro

Western Air Mechanical

260 West Arrow Hwy, Suite E
4.58(
152
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
21 years of experience

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Western Air Mechanical, strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"fixed my furnace problem. heater works now."

Donna M on October 2024

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at Western Air Mechanical, strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

"fixed my furnace problem. heater works now."

Donna M on October 2024

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FAQs for central a/c service or repair projects in Duarte, 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 Duarte, 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.

  • Technician repairing air conditioner

    HomeAdvisor's Air Conditioning Repair Cost Guide gives the average price to fix an AC unit in your house. Find the cost of recharging the AC or fixing a freon leak. Get the price to repair or replace a compressor, handler, thermostat, duct, and more.

  • An AC system in the backyard of a house

    This guide explores the average cost of replacing your AC compressor and all of the factors that go into it, including size, type, and brand.

  • 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.