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Find Central a/c service or repairers in Diamond Bar

Avatar for Suncoast Heating and Air Conditioning, Inc.

Suncoast Heating and Air Conditioning, Inc.

4.86(
7
)
Approved Pro

Suncoast Heating and Air Conditioning, Inc.

4.86(
7
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

SUNCOAST HEATING AND AIR CONDITIONING INC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Get multiple quotes before you make a decision"

Eric R on July 2023

SUNCOAST HEATING AND AIR CONDITIONING INC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Get multiple quotes before you make a decision"

Eric R on July 2023


Avatar for Net Blue HVAC

Net Blue HVAC

5.00(
2
)
Approved Pro

Net Blue HVAC

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


We are a company dedicated to improving and maintaining the comfort of your home. Our focus is always on making sure you are taken care of with precise diagnostics, service, repairs, and replacements.


Avatar for Penguin Heating and Air Inc

Penguin Heating and Air Inc

5.00(
13
)
Approved Pro

Penguin Heating and Air Inc

5.00(
13
)
Approved Pro
Customers say: Quick response
Free onsite estimate
Emergency services offered

Penguin Heating and Air Inc is here to help! We offer a variety of HVAC services from service to installations. We are based out of the Placentia, CA area. Give our team a call today. We're looking forward to working with you!

"Their tech arrived quickly and was courteous and friendly. He figured out the problem with my AC and the work was completed in a timely manner"

Nancy T on September 2025

Penguin Heating and Air Inc is here to help! We offer a variety of HVAC services from service to installations. We are based out of the Placentia, CA area. Give our team a call today. We're looking forward to working with you!

"Their tech arrived quickly and was courteous and friendly. He figured out the problem with my AC and the work was completed in a timely manner"

Nancy T on September 2025


Avatar for All Plumbing & Air Solutions

All Plumbing & Air Solutions

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

All Plumbing & Air Solutions

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2 years of experience
Free onsite estimate

All Plumbing Solutions 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.

All Plumbing Solutions 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.


Avatar for RS Air Conditioning & Heating

RS Air Conditioning & Heating

4.97(
21
)
Approved Pro

RS Air Conditioning & Heating

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 One Hour Heating & Air Conditioning

One Hour Heating & Air Conditioning

5.00(
5
)
Approved Pro

One Hour Heating & Air Conditioning

5.00(
5
)
Approved Pro
1 years of experience
Free onsite estimate

When homeowners want a reliable heating or air conditioning system that they don't have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort. At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It's why we back all of our work with a 100% customer satisfaction guarantee for two years, and it's why we're always on time guaranteed.

When homeowners want a reliable heating or air conditioning system that they don't have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort. At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It's why we back all of our work with a 100% customer satisfaction guarantee for two years, and it's why we're always on time guaranteed.


Valley Comfort Champions, Inc.

5.00(
11
)
Approved Pro

Valley Comfort Champions, Inc.

5.00(
11
)
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

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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.

"Home Runners Heating and Air did an outstanding job when servicing our HVAC system. Their technicians were not only highly skilled and efficient but also incredibly friendly and approachable. They took the time to explain everything in detail and made sure we were comfortable with the work being done. The entire experience was smooth and stress-free. Highly recommended for anyone in need of heating and air services!"

L L on June 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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.

"Home Runners Heating and Air did an outstanding job when servicing our HVAC system. Their technicians were not only highly skilled and efficient but also incredibly friendly and approachable. They took the time to explain everything in detail and made sure we were comfortable with the work being done. The entire experience was smooth and stress-free. Highly recommended for anyone in need of heating and air services!"

L L on June 2024


Avatar for Service All Stars Heating and Air Comfort

Service All Stars Heating and Air Comfort

4.72(
109
)
Approved Pro

Service All Stars Heating and Air Comfort

4.72(
109
)
Approved Pro
Customers say: True professional
25 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 SoCal Climate Control - LA

SoCal Climate Control - LA

4.44(
347
)
Approved Pro

SoCal Climate Control - LA

4.44(
347
)
Approved Pro
Customers say: True professional
772 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

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