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TRUSTED BY CLAYTON, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon263
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Clayton

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
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.

"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


Avatar for Thermotech Solutions, Inc.

Thermotech Solutions, Inc.

5.00(
2
)
Approved Pro

Thermotech Solutions, Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
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.

"I called ThermoTech Solutions and they sent out a technician within 24 hours. I was pleasantly surprised that the technician was the same gentleman I talked to over the phone so I did not have to retell what was wrong with my system. Jason my technician who is also the owner was great. He tested my system, knew exactly what was needed, and had it repaired the very same day. He did not try to sell me on upgrading my unit or a bunch of repairs I did not need. The service was fast, very reasonably priced, and I have had no issues since. Will definitely be having ThermoTech Solutions come out for all my HVAC needs in the future!"

David D on December 2023

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.

"I called ThermoTech Solutions and they sent out a technician within 24 hours. I was pleasantly surprised that the technician was the same gentleman I talked to over the phone so I did not have to retell what was wrong with my system. Jason my technician who is also the owner was great. He tested my system, knew exactly what was needed, and had it repaired the very same day. He did not try to sell me on upgrading my unit or a bunch of repairs I did not need. The service was fast, very reasonably priced, and I have had no issues since. Will definitely be having ThermoTech Solutions come out for all my HVAC needs in the future!"

David D on December 2023


Avatar for Global Comfort Heating and Air

Global Comfort Heating and Air

4.85(
47
)
Approved Pro

Global Comfort Heating and Air

4.85(
47
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% 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!

"We chose repair of a very old air conditioning unit due to the cost of a new unit. It is working now but we have no guarantee of for how long. Global responded quickly and repaired the unit within hours."

Wayne B on July 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!

"We chose repair of a very old air conditioning unit due to the cost of a new unit. It is working now but we have no guarantee of for how long. Global responded quickly and repaired the unit within hours."

Wayne B on July 2025


Avatar for 411 Heating & AC, LLC

411 Heating & AC, LLC

4.61(
175
)
Approved Pro

411 Heating & AC, LLC

4.61(
175
)
Approved Pro
Customers say: True professional
51 local quotes requested
17 years of experience

Thank you for choosing 411 Heating & AC, LLC, Contra Costa Countys' premiere HVAC service professional. For nearly a decade, we've specialized in all your heating and air conditioning needs. We proudly serve Concord and the surrounding areas. We look forward to earning your business.

"very knowledgeable, prompt, and professional. would highly recommend "

Layla M on October 2025

Thank you for choosing 411 Heating & AC, LLC, Contra Costa Countys' premiere HVAC service professional. For nearly a decade, we've specialized in all your heating and air conditioning needs. We proudly serve Concord and the surrounding areas. We look forward to earning your business.

"very knowledgeable, prompt, and professional. would highly recommend "

Layla M on October 2025


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
Customers say: Quick response
418 local quotes requested
34 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 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 G on September 2025


Avatar for Hire My Husband LLC

Hire My Husband LLC

4.83(
120
)
Approved Pro

Hire My Husband LLC

4.83(
120
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
278 local quotes requested

Since 2002 we have completed all of those Honey Do List of repairs around your home. Interior painting, drywall repairs & texture, door repairs & replacement, trim installation, and closet & garage organization are just a few items on our List of Services. We thrive on those challenging projects! Please contact us at 707-746-7958 or 925-969-0133 and [email protected].

"Available quickly and arrived on time. Did a great job and provided valuable advice to resolve problems that arose."

Aimee O on September 2025

Since 2002 we have completed all of those Honey Do List of repairs around your home. Interior painting, drywall repairs & texture, door repairs & replacement, trim installation, and closet & garage organization are just a few items on our List of Services. We thrive on those challenging projects! Please contact us at 707-746-7958 or 925-969-0133 and [email protected].

"Available quickly and arrived on time. Did a great job and provided valuable advice to resolve problems that arose."

Aimee O on September 2025


Avatar for Mr. Handyman Serving Walnut Creek & San Ramon Valley

Mr. Handyman Serving Walnut Creek & San Ramon Valley

4.80(
10
)
Approved Pro

Mr. Handyman Serving Walnut Creek & San Ramon Valley

4.80(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
149 local quotes requested

If you'd rather not spend your free time clearing gutters, fixing decks, or tackling endless home repairs, you're not alone. Maintaining your property—whether residential or commercial—takes time, tools, and expertise most people don’t have. That’s where we come in. At Mr. Handyman, our skilled, reliable professionals handle everything from small repairs to major improvements. We’re your trusted local team for quality workmanship and dependable service. Call us today to learn how we can make your property more comfortable, functional, and worry-free.

"Next day service, completed very quickly but showing cracks and some areas are not smooth or clean. Cost was too high for the skill level and time spent. I was injured so couldn’t inspect the job until today."

Lorraine E on October 2025

If you'd rather not spend your free time clearing gutters, fixing decks, or tackling endless home repairs, you're not alone. Maintaining your property—whether residential or commercial—takes time, tools, and expertise most people don’t have. That’s where we come in. At Mr. Handyman, our skilled, reliable professionals handle everything from small repairs to major improvements. We’re your trusted local team for quality workmanship and dependable service. Call us today to learn how we can make your property more comfortable, functional, and worry-free.

"Next day service, completed very quickly but showing cracks and some areas are not smooth or clean. Cost was too high for the skill level and time spent. I was injured so couldn’t inspect the job until today."

Lorraine E on October 2025


Avatar for Albert Nahman Plumbing, Heating, and Cooling

Albert Nahman Plumbing, Heating, and Cooling

4.64(
615
)
Approved Pro

Albert Nahman Plumbing, Heating, and Cooling

4.64(
615
)
Approved Pro
Customers say: Super punctual
870 local quotes requested
44 years of experience

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!

"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."

Kevin C on September 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!

"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."

Kevin C on September 2025


Avatar for AirGonomics Heating & Cooling

AirGonomics Heating & Cooling

5.00(
5
)
Approved Pro

AirGonomics Heating & Cooling

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

AirGonomics Heating & Cooling provides Honest, Reliable HVAC services for your Home or Business. Whether you require equipment maintenance, replacement or an emergency repair, we are available to serve all of HVAC your needs. Your satisfaction matters. AirGonomics strives for 100% customer satisfaction. Give AirGonomics a call today. We will do our best to exceed your expectations.

"All work was done on schedule and actually under $ budget, which was surprising and nice to see, would definitely use this company again and highly recommend them"

Dave H on June 2024

AirGonomics Heating & Cooling provides Honest, Reliable HVAC services for your Home or Business. Whether you require equipment maintenance, replacement or an emergency repair, we are available to serve all of HVAC your needs. Your satisfaction matters. AirGonomics strives for 100% customer satisfaction. Give AirGonomics a call today. We will do our best to exceed your expectations.

"All work was done on schedule and actually under $ budget, which was surprising and nice to see, would definitely use this company again and highly recommend them"

Dave H on June 2024


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
119 local quotes requested

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

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Heating and Air Conditioning questions, answered by experts

You should service your AC at least once per year, in the spring, and twice per year if your unit is 10 years or older. As your unit ages, more maintenance can catch problems early and help the system reach its full lifespan potential, usually 15 years.

Get on your HVAC technician’s schedule in early spring so your unit is ready to go for the season. If you’re doing two inspections per year, aim for one in the spring and one in the fall. You should also service your furnace once per year in the fall.

No, it isn’t necessarily bad to turn your AC on and off frequently—contrary to popular belief. Even if you stop and start your AC throughout the day, it won’t use as much energy as it would if you ran it nonstop. 

If you’re concerned about your power consumption and energy costs, there are a few simple ways to use your AC more efficiently. Regularly cleaning the filters, scheduling routine maintenance, and using a programmable thermostat are all great choices.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

There are likely dozens of HVAC repair companies that service your area, and choosing the right one can be a tricky process. To hire the right HVAC technician, we recommend reaching out to local companies and ask the following questions:

  • Are you licensed and insured?

  • Do you have any third-party certifications?

  • Do you often work on my specific type of HVAC system?

  • Do you provide any warranty for your work?

  • Do you offer maintenance contracts for ongoing savings?

  • How many years of experience do you have?

If your home has an existing forced-air heat system, you can add a central air conditioner to it. An HVAC technician can retrofit your forced-air heating system by installing an evaporator coil onto the furnace plenum, the box next to the furnace that draws in air. Once installed, the air conditioning coils use the furnace’s blower to circulate the air.

The Clayton, 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.