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Find Central a/c service or repairers in Daly City

Avatar for AirStars Corp.

AirStars Corp.

5.00(
2
)
Approved Pro

AirStars Corp.

5.00(
2
)
Approved Pro
19 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! Installation - Free Estimates Repair - Not Free

"AirStars Corp was absolutely amazing! They were very professional and really knew what they were doing. They changed the insulation and fixed the pipes, which had been connected wrong before and were starting to leak. Any other company would probably have told me to replace the whole system, but AirStars took the time to do things right. You can tell they care about quality and their customers. I’m so impressed with their work, highly recommend them! "

Shirley H on November 2025

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! Installation - Free Estimates Repair - Not Free

"AirStars Corp was absolutely amazing! They were very professional and really knew what they were doing. They changed the insulation and fixed the pipes, which had been connected wrong before and were starting to leak. Any other company would probably have told me to replace the whole system, but AirStars took the time to do things right. You can tell they care about quality and their customers. I’m so impressed with their work, highly recommend them! "

Shirley H on November 2025


Avatar for Atlas Trillo Heating & Air Conditioning

Atlas Trillo Heating & Air Conditioning

4.80(
32
)
Approved Pro

Atlas Trillo Heating & Air Conditioning

4.80(
32
)
Approved Pro
Super Service Award
Customers say: True professional
266 local quotes requested
73 years of experience

Atlas Trillo Heating and Air Conditioning dates back to the early 1950's when the Silicon Valley was in its infancy. Atlas Trillo serves both residential and commercial customers with best in energy efficient, environmentally safe equipment and services for your ideal comfort systems. Whether it's a new installation, a retrofit, replacement, duct cleaning, or routine service, our factory-trained mechanics provide the skill and expertise on which your comfort depends.

"He came for our heater tune up. He explained to me how the furnace works and what he was going to do. Once the job finished he told me the repair to be done: to change the red sealer on the exhaust pipe to the proper blue sealer. He gave me the amount expected to pay for it and how long it should take. He is very polite and professional. "

Josie B on January 2026

Atlas Trillo Heating and Air Conditioning dates back to the early 1950's when the Silicon Valley was in its infancy. Atlas Trillo serves both residential and commercial customers with best in energy efficient, environmentally safe equipment and services for your ideal comfort systems. Whether it's a new installation, a retrofit, replacement, duct cleaning, or routine service, our factory-trained mechanics provide the skill and expertise on which your comfort depends.

"He came for our heater tune up. He explained to me how the furnace works and what he was going to do. Once the job finished he told me the repair to be done: to change the red sealer on the exhaust pipe to the proper blue sealer. He gave me the amount expected to pay for it and how long it should take. He is very polite and professional. "

Josie B on January 2026


Avatar for Aire Serv of Campbell & Saratoga

Aire Serv of Campbell & Saratoga

4.88(
16
)
Approved Pro

Aire Serv of Campbell & Saratoga

4.88(
16
)
Approved Pro
Super Service Award
Customers say: Quick response
148 local quotes requested
35 years of experience

Looking for reliable Heating & A/C services in the BAY Area and surrounding counties? Look no further than Aire Serv of Campbell & Saratoga. Our team of experts is here to assist you with all your heating and A/C needs. With our exceptional service and attention to detail, we are dedicated to providing the best solutions for all your needs. Contact us today!

"Very well!"

Sanjeev Gupta G on September 2025

Looking for reliable Heating & A/C services in the BAY Area and surrounding counties? Look no further than Aire Serv of Campbell & Saratoga. Our team of experts is here to assist you with all your heating and A/C needs. With our exceptional service and attention to detail, we are dedicated to providing the best solutions for all your needs. Contact us today!

"Very well!"

Sanjeev Gupta G on September 2025


Avatar for Comfort Energy Inc

Comfort Energy Inc

4.60(
116
)
Approved Pro

Comfort Energy Inc

4.60(
116
)
Approved Pro
Customers say: Quick response
35 local quotes requested
23 years of experience

Message from the Owner/ Founder: “As a third generation heating and air technician and retired 20 year veteran of fire and public safety, I wanted to create a service company that you could count on for its integrity and professionalism. When our service technicians arrive at your home, we want you to feel the same level of confidence and trust you get from a firefighter arriving at your home to help when you call 911. Our service technicians are professional, courteous, and well trained. I am comfortable allowing them into the homes of my families and friends who are firefighters, police officers and the public. Thank you for the opportunity to service your comfort needs and believing in our company. We look forward to a continued long relationship. Warm regards, Harry Abbott” Comfort Energy Inc is a full service provider of quality air conditioning and heating repair and installation. . Locally owned and operated, with over 30 years of experience. We are proud members of the Nexstar network of contractors. We specialize in helping homeowners make informed decisions to best meet your family's comfort needs. Spanish and Japanese spoken.

"We had a wonderful experience with Comfort Energy! The service person, whose name was Chance, did a thorough evaluation of the problem with a focus on saving us as much money as possible, to either repair or replace our 30-year-old heat furnace. He quickly determined that our inlet filter was too dense (it was a Merv 11 and should have been a Merv 8) and that that was probably causing the heater to go off an on every 5-10 minutes. He then tested and confirmed his hypothesis. He also performed a CO test to make sure there wasn't anything more serious going on. Finally, he gave us a good idea of replacement options, which we should probably do before the next Winter, but not necessarily right away. All in all, this is exactly the kind of assessment we needed, and it cost orders of magnitude less than what was estimated by the first service company we had come out. Chance was great, and Comfort Energy is our go-to for heating and cooling service and/or installation from now on."

Gary S on April 2025

Message from the Owner/ Founder: “As a third generation heating and air technician and retired 20 year veteran of fire and public safety, I wanted to create a service company that you could count on for its integrity and professionalism. When our service technicians arrive at your home, we want you to feel the same level of confidence and trust you get from a firefighter arriving at your home to help when you call 911. Our service technicians are professional, courteous, and well trained. I am comfortable allowing them into the homes of my families and friends who are firefighters, police officers and the public. Thank you for the opportunity to service your comfort needs and believing in our company. We look forward to a continued long relationship. Warm regards, Harry Abbott” Comfort Energy Inc is a full service provider of quality air conditioning and heating repair and installation. . Locally owned and operated, with over 30 years of experience. We are proud members of the Nexstar network of contractors. We specialize in helping homeowners make informed decisions to best meet your family's comfort needs. Spanish and Japanese spoken.

"We had a wonderful experience with Comfort Energy! The service person, whose name was Chance, did a thorough evaluation of the problem with a focus on saving us as much money as possible, to either repair or replace our 30-year-old heat furnace. He quickly determined that our inlet filter was too dense (it was a Merv 11 and should have been a Merv 8) and that that was probably causing the heater to go off an on every 5-10 minutes. He then tested and confirmed his hypothesis. He also performed a CO test to make sure there wasn't anything more serious going on. Finally, he gave us a good idea of replacement options, which we should probably do before the next Winter, but not necessarily right away. All in all, this is exactly the kind of assessment we needed, and it cost orders of magnitude less than what was estimated by the first service company we had come out. Chance was great, and Comfort Energy is our go-to for heating and cooling service and/or installation from now on."

Gary S on April 2025


Avatar for GB Heating & Air Conditioning Inc.

GB Heating & Air Conditioning Inc.

5.00(
5
)
Approved Pro

GB Heating & Air Conditioning Inc.

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

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.

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.


Avatar for Red Mountain Heating and Air, Inc.

Red Mountain Heating and Air, Inc.

4.81(
21
)
Approved Pro

Red Mountain Heating and Air, Inc.

4.81(
21
)
Approved Pro
Customers say: Quality work
40 local quotes requested
5 years of experience

Red Mountain Heating and Air, Inc is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"I got bids from a *large* number of installers and Red Mountain gave me the best equipment for the price and did a nice job of it despite a few early teething problems that were resolved quickly and competently. But note that the going price in this area for heat pumps is significantly higher than in other areas of the country - regardless of which installer I let bid on my home. In my opinion, given energy price trends, the environmental impact of heating with gas, and having existing solar power on my home, the benefits of a heat pump outweighs the high price in this area, but YMMV. Think thru your position re: BayREN rebates and the recent federal Inflation Reduction Act rebates carefully to make sure you qualify."

Steve B on August 2022

Red Mountain Heating and Air, Inc is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"I got bids from a *large* number of installers and Red Mountain gave me the best equipment for the price and did a nice job of it despite a few early teething problems that were resolved quickly and competently. But note that the going price in this area for heat pumps is significantly higher than in other areas of the country - regardless of which installer I let bid on my home. In my opinion, given energy price trends, the environmental impact of heating with gas, and having existing solar power on my home, the benefits of a heat pump outweighs the high price in this area, but YMMV. Think thru your position re: BayREN rebates and the recent federal Inflation Reduction Act rebates carefully to make sure you qualify."

Steve B on August 2022


SAM'S HEATING & AIR CONDITIONING, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

SAM'S HEATING & AIR CONDITIONING, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
Free onsite estimate

SAM'S HEATING & AIR CONDITIONING, LLC 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.

SAM'S HEATING & AIR CONDITIONING, LLC 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 Air Sharks

Air Sharks

5.00(
12
)
Approved Pro

Air Sharks

5.00(
12
)
Approved Pro
Super Service Award
Customers say: Quick response
22 local quotes requested
4 years of experience

Air Sharks LLC provides a wide range of HVAC services for residential clients throughout the South Bay. In addition to installing, repairing, and maintaining heating and air conditioning systems made by industry leaders like Daikin and Lennox, the company offers various services that are designed to improve indoor air quality, including ductwork inspection and cleaning. Owner Khaled Alsaka credits much of Air Sharks’ success to its passion for transforming the HVAC process with insightful education, collaborative solutions and top-tier products. “As a pioneering force in the industry, we leverage our extensive expertise to provide our customers with seamless guidance,” he says. “Our dedication to excellence motivates us to continuously exceed expectations, ensuring every interaction reflects our unwavering commitment to delivering five-star service.” Air Sharks offers personalized consultations so it can provide each job with tailored heating and cooling solutions, which Mr. Alsaka says is important for ensuring positive results. “We take great pride in our craftsmanship and attention to detail. Every phase of our process allows us to showcase our expertise, resulting in highly satisfied customers who are eager to share their experience with others.

"I was extremely impressed with the service provided by Air Sharks, who replaced my aging furnace and damaged heat ducts. Elizabeth provided a detailed explanation in a friendly, professional and understandable way. Pricing seemed reasonable, and was 25% below a previous estimate. Daniel and his crew did a fantastic job removing and replacing the new furnace and the duct system in a very tight crawl space. They left the furnace looking absolutely beautiful and clean. I highly recommend them"

Michael B on December 2025

Air Sharks LLC provides a wide range of HVAC services for residential clients throughout the South Bay. In addition to installing, repairing, and maintaining heating and air conditioning systems made by industry leaders like Daikin and Lennox, the company offers various services that are designed to improve indoor air quality, including ductwork inspection and cleaning. Owner Khaled Alsaka credits much of Air Sharks’ success to its passion for transforming the HVAC process with insightful education, collaborative solutions and top-tier products. “As a pioneering force in the industry, we leverage our extensive expertise to provide our customers with seamless guidance,” he says. “Our dedication to excellence motivates us to continuously exceed expectations, ensuring every interaction reflects our unwavering commitment to delivering five-star service.” Air Sharks offers personalized consultations so it can provide each job with tailored heating and cooling solutions, which Mr. Alsaka says is important for ensuring positive results. “We take great pride in our craftsmanship and attention to detail. Every phase of our process allows us to showcase our expertise, resulting in highly satisfied customers who are eager to share their experience with others.

"I was extremely impressed with the service provided by Air Sharks, who replaced my aging furnace and damaged heat ducts. Elizabeth provided a detailed explanation in a friendly, professional and understandable way. Pricing seemed reasonable, and was 25% below a previous estimate. Daniel and his crew did a fantastic job removing and replacing the new furnace and the duct system in a very tight crawl space. They left the furnace looking absolutely beautiful and clean. I highly recommend them"

Michael B on December 2025


Avatar for Valley Heating, Cooling, Electrical and Solar

Valley Heating, Cooling, Electrical and Solar

4.81(
1,591
)
Approved Pro

Valley Heating, Cooling, Electrical and Solar

4.81(
1,591
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
13 local quotes requested

Since 1962, we have been committed to living up to our company slogan every day – The Home of Old Fashioned Service. That means reliability, expert advice, quality work and great service for our customers – and a 100% guarantee. Our entire team can’t wait to show you the difference great service can make for your heating, cooling, electrical, solar and above all, “comfort” needs. We sub-contract with licensed plumbers when necessary. $100 off the installation of a new furnace or air conditioner. Cannot be combined with other offers.

"watch out - they charge a service fee for quotes"

Joshua M on February 2021

Since 1962, we have been committed to living up to our company slogan every day – The Home of Old Fashioned Service. That means reliability, expert advice, quality work and great service for our customers – and a 100% guarantee. Our entire team can’t wait to show you the difference great service can make for your heating, cooling, electrical, solar and above all, “comfort” needs. We sub-contract with licensed plumbers when necessary. $100 off the installation of a new furnace or air conditioner. Cannot be combined with other offers.

"watch out - they charge a service fee for quotes"

Joshua M on February 2021


Avatar for Bell Brothers Plumbing Heating & Air

Bell Brothers Plumbing Heating & Air

4.79(
357
)
Approved Pro

Bell Brothers Plumbing Heating & Air

4.79(
357
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
19 local quotes requested

We are locally owned and operated, and serving the Bay Area. Our focus is residential air conditioning, heating, Installation of HVAC systems and full-service plumbing. We love working with homeowners and helping to take care of their precious homes. We also keep busy doing light commercial service. Serving California since 1954, financing options available, We don't charge extra for Saturday service calls.

"They were very good. The best."

Nabila S on June 2022

We are locally owned and operated, and serving the Bay Area. Our focus is residential air conditioning, heating, Installation of HVAC systems and full-service plumbing. We love working with homeowners and helping to take care of their precious homes. We also keep busy doing light commercial service. Serving California since 1954, financing options available, We don't charge extra for Saturday service calls.

"They were very good. The best."

Nabila S on June 2022

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FAQs for central a/c service or repair projects in Daly City, 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 Daly City, 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