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TRUSTED BY HERCULES, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon243
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Hercules

Avatar for RC&G Handyman Services

RC&G Handyman Services

4.94(
213
)
Approved Pro

RC&G Handyman Services

4.94(
213
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
15 years of experience

RC&G is an acronym - it stands for "Richard, Charlene, and the Girls", because it's a great reminder of what I'm working for. I'm Richard and my wife and daughters are the most important thing in the world to me. Also hugely important to me is doing great work in my business as a handyman. I've always been mechanically inclined and good at fixing whatever's broken. With decades of experience, now I'm truly a master handyman. Whatever you need, I'm here to get it done. I respond quickly to contacts and give an accurate estimate. Then I arrive as scheduled, do the job right, and leave your house as clean as I found it. I'm looking forward to meeting you!

"Project went fine. Richard was very professional and accommodating!"

Martin H on October 2024

RC&G is an acronym - it stands for "Richard, Charlene, and the Girls", because it's a great reminder of what I'm working for. I'm Richard and my wife and daughters are the most important thing in the world to me. Also hugely important to me is doing great work in my business as a handyman. I've always been mechanically inclined and good at fixing whatever's broken. With decades of experience, now I'm truly a master handyman. Whatever you need, I'm here to get it done. I respond quickly to contacts and give an accurate estimate. Then I arrive as scheduled, do the job right, and leave your house as clean as I found it. I'm looking forward to meeting you!

"Project went fine. Richard was very professional and accommodating!"

Martin H on October 2024


Avatar for Perfect Star Heating and Air Conditioning

Perfect Star Heating and Air Conditioning

4.91(
258
)
Approved Pro

Perfect Star Heating and Air Conditioning

4.91(
258
)
Approved Pro
Super Service Award
Customers say: Quick response
9 years of experience
Free onsite estimate

With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.

"Jesus was prompt and efficient. He diagnosed the problem and restored my heating in a short time"

William D on December 2025

With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.

"Jesus was prompt and efficient. He diagnosed the problem and restored my heating in a short time"

William D on December 2025


Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.71(
621
)
Approved Pro

Service Champions Heating & Air Conditioning

4.71(
621
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
22 years of experience

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

" It was very good. "

Bob A on December 2025

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

" It was very good. "

Bob A on December 2025


Avatar for Bell Brothers Plumbing Heating & Air

Bell Brothers Plumbing Heating & Air

4.66(
387
)
Approved Pro

Bell Brothers Plumbing Heating & Air

4.66(
387
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
71 years of experience

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.

"Called this company for their $77 dollar, which they advertised with a flyer, for a tune-up and cleaning for my heating system. They are a Hayward company and I was told that our Castro Valley home was not in their service area. I bet if I called to buy a new heater they would be out in a day."

Gregory O on March 2023

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.

"Called this company for their $77 dollar, which they advertised with a flyer, for a tune-up and cleaning for my heating system. They are a Hayward company and I was told that our Castro Valley home was not in their service area. I bet if I called to buy a new heater they would be out in a day."

Gregory O on March 2023


Avatar for Golden Bay Electric

Golden Bay Electric

4.91(
27
)
Approved Pro

Golden Bay Electric

4.91(
27
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
4 years of experience

Golden Bay Electric is dedicated to providing our customers with the best quality work and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. 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.

"Job was quoted so quickly and was onsite within 90 minutes. I have rarely received such quick service for a small job. Electrician was courteous, clean and professional. No price gouging with this company, they will now be my go to all my electrical needs going forward. Thanks Golden Bay Electric!"

Steve C on March 2025

Golden Bay Electric is dedicated to providing our customers with the best quality work and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. 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.

"Job was quoted so quickly and was onsite within 90 minutes. I have rarely received such quick service for a small job. Electrician was courteous, clean and professional. No price gouging with this company, they will now be my go to all my electrical needs going forward. Thanks Golden Bay Electric!"

Steve C on March 2025


Avatar for Global Comfort Heating and Air

Global Comfort Heating and Air

4.85(
48
)
Approved Pro

Global Comfort Heating and Air

4.85(
48
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
16 years of experience

We are a family owned full service heating and air conditioning company. We pride ourselves on delivering professional service to our clients. We are experts in all areas of heating and cooling installation and repair. There is no job to big or to small so please give us a call!

"Prompt response and prompt arrival. Reviewed the issue and came up with solution and put that solution into action. Expensive but worth it."

Lindy S on December 2025

We are a family owned full service heating and air conditioning company. We pride ourselves on delivering professional service to our clients. We are experts in all areas of heating and cooling installation and repair. There is no job to big or to small so please give us a call!

"Prompt response and prompt arrival. Reviewed the issue and came up with solution and put that solution into action. Expensive but worth it."

Lindy S on December 2025


Avatar for Albert Nahman Plumbing, Heating, and Cooling

Albert Nahman Plumbing, Heating, and Cooling

4.64(
619
)
Approved Pro

Albert Nahman Plumbing, Heating, and Cooling

4.64(
619
)
Approved Pro
Customers say: Super punctual
44 years of experience
Warranties offered

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"Very professional, freindly and corteous."

Jackson B on December 2025

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"Very professional, freindly and corteous."

Jackson B on December 2025


"Josh and his helper did excellent work. The highest peak was over 2 stories and they tackled it like the pros they are. Very nice men and I'm happy with their work."

SANDRA W on September 2025

Full service Home Maintenance & Repair. Specializing in painting, flooring and bathroom/kitchen remodeling. Electrical, plumbing etc. Licensed General Contractor License #1088129

"Josh and his helper did excellent work. The highest peak was over 2 stories and they tackled it like the pros they are. Very nice men and I'm happy with their work."

SANDRA W on September 2025


Avatar for Smart Heating and Air Conditioning, Inc.

Smart Heating and Air Conditioning, Inc.

5.00(
12
)
Approved Pro

Smart Heating and Air Conditioning, Inc.

5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
4 years of experience

Smart Heating and Air Conditioning has what you need when it comes to AC Repair and Furnace Repair, with over 20+ years of experience. From small to large A/C Repair or Furnace Repair to routine maintenance, Smart Heating and Air Conditioning specializes in repair, service and maintenance of your home's Central Heating & Cooling, Ductwork, or Indoor Air Quality / Filtration. Not to mention Smart HVAC excellent equipment replacement and installations. Cities we service throughout Contra Costa and Alameda County include: Alameda, Alamo, Antioch, Berkeley, Brentwood, Clayton, Clyde, Concord, Danville, Diablo, Discovery Bay, Dublin, El Cerrito, Hayward, Hercules, Kensington, Lafayette, Livermore, Martinez, Montclair, Moraga, Oakland, Oakley, Orinda, Piedmont, Pittsburg, Pleasant Hill, Pleasanton, Rossmoor, San Ramon, San Leandro and Walnut Creek, CA. Call today for your free estimate on equipment.

"Review I left on Google. We had an amazing experience with Smart Heating and Air Conditioning. Our tech, Juan, was on time, courteous and knowledgeable. He fixed the problem quickly and offered expert assistance in setting up an ongoing maintenance plan for our 35+ year old furnace. Also, he was engaging, and focused on the customer experience. You’ve got a great employee in Juan Rodriguez Pinto. He made me want to be a recurring costumer to your business. Which, as a person who works in costumer service myself, is the highest praise I can give. In fact, the entire process for our service was seamlessly executed. From reaching out through Angi, to communications with Suzy in the office, all the way to a working furnace. It all added to a perfect customer experience. Thanks "

James S on November 2025

Smart Heating and Air Conditioning has what you need when it comes to AC Repair and Furnace Repair, with over 20+ years of experience. From small to large A/C Repair or Furnace Repair to routine maintenance, Smart Heating and Air Conditioning specializes in repair, service and maintenance of your home's Central Heating & Cooling, Ductwork, or Indoor Air Quality / Filtration. Not to mention Smart HVAC excellent equipment replacement and installations. Cities we service throughout Contra Costa and Alameda County include: Alameda, Alamo, Antioch, Berkeley, Brentwood, Clayton, Clyde, Concord, Danville, Diablo, Discovery Bay, Dublin, El Cerrito, Hayward, Hercules, Kensington, Lafayette, Livermore, Martinez, Montclair, Moraga, Oakland, Oakley, Orinda, Piedmont, Pittsburg, Pleasant Hill, Pleasanton, Rossmoor, San Ramon, San Leandro and Walnut Creek, CA. Call today for your free estimate on equipment.

"Review I left on Google. We had an amazing experience with Smart Heating and Air Conditioning. Our tech, Juan, was on time, courteous and knowledgeable. He fixed the problem quickly and offered expert assistance in setting up an ongoing maintenance plan for our 35+ year old furnace. Also, he was engaging, and focused on the customer experience. You’ve got a great employee in Juan Rodriguez Pinto. He made me want to be a recurring costumer to your business. Which, as a person who works in costumer service myself, is the highest praise I can give. In fact, the entire process for our service was seamlessly executed. From reaching out through Angi, to communications with Suzy in the office, all the way to a working furnace. It all added to a perfect customer experience. Thanks "

James S on November 2025


First Class Water Heaters, Inc.

4.74(
130
)
Approved Pro

First Class Water Heaters, Inc.

4.74(
130
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
28 years of experience

We are dedicated to providing our clients with the very best in service, installation and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long term relationships with our clients and guarantee your satisfaction.

"They did a good job."

Oskar W on June 2021

We are dedicated to providing our clients with the very best in service, installation and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long term relationships with our clients and guarantee your satisfaction.

"They did a good job."

Oskar W on June 2021

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Heating and Air Conditioning questions, answered by experts

No, it's not advisable to only replace the outside AC unit connected to your system. AC units are designed to work as a cohesive system, and older units work differently than newer units. Therefore, replacing only one component can lead to incompatibilities that affect the system’s performance. Replacing one component can void your warranty, costing you money for repairs.

You should flush your AC drain line once every three months to keep it clear of debris and buildup. Keeping your AC drain line clean prevents clogs, backups, mold growth, and extra wear on your AC unit. If you live in a humid area or have several furry pets, up your cleaning schedule to once a month.

Unfreezing an AC unit is not a DIY project unless the problem is a dirty air filter. Changing out an air filter is easy for homeowners, but otherwise, trying to repair ductwork, refill refrigerant, or replace a blower fan motor are tasks best left to the pros. Otherwise, you could cause further damage to your cooling system or even harm to yourself.

No, a licensed local AC repair technician must replace AC coils due to the need to handle hazardous refrigerants. Attempting DIY poses risks to your personal safety, as most refrigerants are flammable and toxic. You also risk voiding your warranty with the HVAC company and causing damage to the unit.

Zoned HVAC systems can be worth it for some homeowners, even with the added HVAC replacement costs, because they offer tremendous benefits. Zoned HVAC may offer greater stability and efficiency if your home has multiple levels and experiences constant temperature fluctuations. However, even smaller homes without major fluctuations can benefit since zoned HVAC systems can adjust their temperature more quickly by heating and cooling only the spaces you need.

The Hercules, CA homeowners’ guide to heating and air conditioning services

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

What do you need done? We’ll find top pros.
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