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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon370
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Cupertino

Avatar for Global Green Solutions

Global Green Solutions

5.00(
111
)
Approved Pro

Global Green Solutions

5.00(
111
)
Approved Pro
Customers say: Quick response
20 years of experience
Free onsite estimate

Whether you need an A/C or Heater installation or repair in Los Angeles, our team of HVAC pros is here to deliver outstanding service. We're passionate about delivering an exceptional heating and air conditioning experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We're committed to serving you with quality and great value. We'll come to you, listen to your needs, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long-term customers time and time again, choosing us for all the heating, AC, air ducts needs. Contact us today and see what our commitment to quality is all about! We may not be related, but you'll feel like we're family. We Service Los Angeles and surrounding areas. Call us today for a free estimate!

"Excellent heating and air conditioning repair, replacement, and new installation services! Everything went smoothly and without incident from beginning to end. Before departing, they made sure the system was operating flawlessly, responded quickly, and worked effectively. Excellent service?I heartily recommend them!"

James on December 2025

Whether you need an A/C or Heater installation or repair in Los Angeles, our team of HVAC pros is here to deliver outstanding service. We're passionate about delivering an exceptional heating and air conditioning experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We're committed to serving you with quality and great value. We'll come to you, listen to your needs, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long-term customers time and time again, choosing us for all the heating, AC, air ducts needs. Contact us today and see what our commitment to quality is all about! We may not be related, but you'll feel like we're family. We Service Los Angeles and surrounding areas. Call us today for a free estimate!

"Excellent heating and air conditioning repair, replacement, and new installation services! Everything went smoothly and without incident from beginning to end. Before departing, they made sure the system was operating flawlessly, responded quickly, and worked effectively. Excellent service?I heartily recommend them!"

James 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
63 years of experience

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 DUKES HEATING & AIR CONDITIONING

DUKES HEATING & AIR CONDITIONING

4.89(
127
)
Approved Pro

DUKES HEATING & AIR CONDITIONING

4.89(
127
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
20 years of experience

Dukes Heating & Air Conditioning is in HVAC business for 37 years now and continuously remains on the top of the industry. We do this by providing honesty and good workmanship that our customers love the most. We- Dukes Heating & Air Conditioning , also make sure that we have the latest technology that enables us to be more competitive & expert in the field and stand behind any work we have performed. Our in-house employees are all professionally trained and deliver only excellence to whatever project they work on.

"Great service"

Noah H on October 2023

Dukes Heating & Air Conditioning is in HVAC business for 37 years now and continuously remains on the top of the industry. We do this by providing honesty and good workmanship that our customers love the most. We- Dukes Heating & Air Conditioning , also make sure that we have the latest technology that enables us to be more competitive & expert in the field and stand behind any work we have performed. Our in-house employees are all professionally trained and deliver only excellence to whatever project they work on.

"Great service"

Noah H on October 2023


Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.64(
655
)
Approved Pro

Service Champions Heating & Air Conditioning

4.64(
655
)
Approved Pro
Super Service Award
Customers say: Super punctual
22 years of experience
Free onsite estimate

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.

"Our Service Tech, Alex Peck, arrived on time to perform the annual check up & tune-up of our HVAC System. He was very professional and following the Tune-Up asked if there was any other items that needed done or looked into that he could take care of. His services were very much appreciated and very professional. Lee"

Lain L on September 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.

"Our Service Tech, Alex Peck, arrived on time to perform the annual check up & tune-up of our HVAC System. He was very professional and following the Tune-Up asked if there was any other items that needed done or looked into that he could take care of. His services were very much appreciated and very professional. Lee"

Lain L on September 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


Capella Heating & Air Conditioning

4.78(
186
)
Approved Pro

Capella Heating & Air Conditioning

4.78(
186
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
35 years of experience

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!

"Juan is very professional and passionate about what he does. Even though we have an annoying HOA in our community that sets all kinds of rules, he communicated with the HOA ahead of time and showed up at the time we agreed. Despite the fact that the HOA failed to tell us the right way to the roof where AC units are located at the beginning, Juan was very patient and called HOA multiple times to figure things out. The repair was completed quickly and properly. I highly recommend Capella HVAC in San Jose."

Chujie C on August 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!

"Juan is very professional and passionate about what he does. Even though we have an annoying HOA in our community that sets all kinds of rules, he communicated with the HOA ahead of time and showed up at the time we agreed. Despite the fact that the HOA failed to tell us the right way to the roof where AC units are located at the beginning, Juan was very patient and called HOA multiple times to figure things out. The repair was completed quickly and properly. I highly recommend Capella HVAC in San Jose."

Chujie C on August 2022


Avatar for Tool Time Home Improvement

Tool Time Home Improvement

4.80(
176
)
Approved Pro

Tool Time Home Improvement

4.80(
176
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
24 years of experience

At Tool Time Construction, no project is too big or too small. From quick handyman fixes like drywall patches to full-scale home remodels and rebuilds, we bring exceptional craftsmanship and care to every job. Based in San Jose, we proudly serve the Bay Area, offering a seamless experience and results you can trust. Why Choose Us? • Versatile Expertise: Whether it’s a minor repair or a complete home transformation, we have the skills and experience to handle it all. • Customer-Focused Service: Your satisfaction is our priority. We ensure open communication and a stress-free process from start to finish. • Attention to Detail: We take pride in delivering high-quality results that stand the test of time. Let’s Build Together From the smallest fixes to the biggest dreams, Tool Time Construction is here to help. Contact us today to discuss your project: • Website: gotooltime.net • Phone: 408-547-9444 • Email: [email protected] Let us help make your home everything you’ve imagined—and more!

"Great job doing the work needed around the house. Highly recommend"

Don S on November 2025

At Tool Time Construction, no project is too big or too small. From quick handyman fixes like drywall patches to full-scale home remodels and rebuilds, we bring exceptional craftsmanship and care to every job. Based in San Jose, we proudly serve the Bay Area, offering a seamless experience and results you can trust. Why Choose Us? • Versatile Expertise: Whether it’s a minor repair or a complete home transformation, we have the skills and experience to handle it all. • Customer-Focused Service: Your satisfaction is our priority. We ensure open communication and a stress-free process from start to finish. • Attention to Detail: We take pride in delivering high-quality results that stand the test of time. Let’s Build Together From the smallest fixes to the biggest dreams, Tool Time Construction is here to help. Contact us today to discuss your project: • Website: gotooltime.net • Phone: 408-547-9444 • Email: [email protected] Let us help make your home everything you’ve imagined—and more!

"Great job doing the work needed around the house. Highly recommend"

Don S on November 2025


Avatar for Comfort Energy Inc

Comfort Energy Inc

4.74(
105
)
Approved Pro

Comfort Energy Inc

4.74(
105
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
22 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 S & J Handyman's

S & J Handyman's

4.89(
37
)
Approved Pro

S & J Handyman's

4.89(
37
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Specializing in remodeling services of all kinds! We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"It went splendidly. Very professional, great job :)"

Mykhaylo K on January 2025

Specializing in remodeling services of all kinds! We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"It went splendidly. Very professional, great job :)"

Mykhaylo K on January 2025


Avatar for Made Simple Heating & Air, Inc.

Made Simple Heating & Air, Inc.

5.00(
13
)
Approved Pro

Made Simple Heating & Air, Inc.

5.00(
13
)
Approved Pro
Customers say: Quick response
6 years of experience
Free onsite estimate

Made Simple Heating and Air 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 18 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!

"Professional, great communication, timely. Thank you for making this so easy. We are very happy with the results. Still learning our new system but enjoying the update. Eager to see how much we will save in energy costs. "

Sue M on November 2025

Made Simple Heating and Air 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 18 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!

"Professional, great communication, timely. Thank you for making this so easy. We are very happy with the results. Still learning our new system but enjoying the update. Eager to see how much we will save in energy costs. "

Sue M on November 2025

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Heating and Air Conditioning questions, answered by experts

In most cases, you should hire a professional to carry out services on your HVAC system, as the components are complicated, expensive, and potentially dangerous to work with. However, there are a few things you can do on your own to keep your HVAC system in good condition, including changing your filters every three months, keeping the area around your outdoor condenser clear of debris and plant growth, making sure your or intakes aren’t blocked, and keeping an eye out for increased energy bills, strange noises, and unusual odors related to your equipment.

Poor cooling, unusual noises, or frequent cycling are indicators that professional service is needed.

A 3-ton AC unit is probably too big for a home that’s 1,200 square feet. If you have a 1,200-square-foot home, you likely need a unit that’s somewhere around 1.9 and 2 tons. An AC unit that’s too large will be really inefficient and cost you a lot of extra money on your bills. 

Not necessarily. Some portable air conditioners may be vented out a door, wall, or ceiling—or even into another room. It’s not necessarily dangerous to run a portable air conditioner without venting it, but it is counterproductive since the unit needs to vent the heat in order to cool the room down in the first place. Without venting your portable AC unit, you’re essentially running a dehumidifier and increasing the temperature in the room. 

You can buy a new AC capacitor through most big-box home improvement stores, from an HVAC contractor, or from the manufacturer. Use the model number of your air conditioning unit to make sure you purchase the right part for your unit. Also, keep in mind that the cost of this type of part can vary significantly depending on who you purchase it from, so shop around to get the best price.

The Cupertino, 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.

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