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

Heating and air conditioning pros in Los Altos Hills

Avatar for Ignite HVAC, Inc.
Ignite HVAC, Inc.
503 Lanyard Drive
New on HomeAdvisorNew on Angi
Approved Pro
Ignite HVAC, Inc.
503 Lanyard Drive
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

Ignite HVAC 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.

Ignite HVAC 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 General Air Technology
General Air Technology
2608 Typhoon Ave
4.93(
7
)
Approved Pro
General Air Technology
2608 Typhoon Ave
4.93(
7
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

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 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.

"Junior was totally on top of things. Installers were on time, polite and very efficient. I was given 5 quotes from other companies but General Air Technology was BY FAR the lowest quote."

nadine D on January 2022

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 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.

"Junior was totally on top of things. Installers were on time, polite and very efficient. I was given 5 quotes from other companies but General Air Technology was BY FAR the lowest quote."

nadine D on January 2022


Avatar for Made Simple Heating & Air, Inc.
Made Simple Heating & Air, Inc.
2704 Meadowark Dr
5.00(
7
)
Approved Pro
Made Simple Heating & Air, Inc.
2704 Meadowark Dr
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

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!

"Servando was very knowledgeable about our system, which is over 30 years old. He spoke about the repairs needed to our system in an easy to understand way. He proved his professionalism by having us up and running the same day, even though he needed to go all the way to Dublin to get the part. I highly recommend Made Simple for your HVAC needs, whatever they may be!"

Michael S on November 2023

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!

"Servando was very knowledgeable about our system, which is over 30 years old. He spoke about the repairs needed to our system in an easy to understand way. He proved his professionalism by having us up and running the same day, even though he needed to go all the way to Dublin to get the part. I highly recommend Made Simple for your HVAC needs, whatever they may be!"

Michael S on November 2023


Avatar for AireServ of Campbell and Saratoga
AireServ of Campbell and Saratoga
1185 Campbell Avenue, Suite 27
5.00(
3
)
Approved Pro
AireServ of Campbell and Saratoga
1185 Campbell Avenue, Suite 27
5.00(
3
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Look no further than Aire Serv® when you need high-quality Santa Clara County, CA, heating and air conditioning services. We have been providing top-tier HVAC services throughout North America since 1992. At Aire Serv of Campbell & Saratoga, our HVAC experts pride themselves on consistently delivering outstanding service to all our commercial and residential customers. Of course, heating and cooling best practices have evolved over time, and Campbell & Saratoga HVAC services must reflect those changes. Our service professionals have the knowledge and experience necessary to maintain and repair modern and older units alike. Regardless of whether your heating unit is malfunctioning or you’re in the market for a new system altogether, our Campbell & Saratoga heating service experts are ready to help. And when temperatures climb, you can count on our Campbell & Saratoga air conditioning service professionals to bring their expertise to your home or business.

"I recently had a new HVAC system installed by Aireserv, and I couldn't be more pleased with the results. From the beginning, the team was professional, courteous, and informative. They arrived on time and were very thorough in explaining the detailed installation plan, the features of the new system, and how to operate it. The installation went smoothly, and the technicians cleaned the area while working. Once the system was installed, they ran tests to ensure everything was working perfectly and took the time to answer all of my questions. The new HVAC system has been a game-changer in terms of performance. It heats and cools my home more efficiently than my previous unit, and I've noticed a significant improvement in comfort and air quality. The system runs quietly and maintains an even temperature throughout my home. I also appreciate the energy savings I'm already seeing. My energy bills have been noticeably lower, which I can directly attribute to the new system's efficiency."

Azam M on January 2025

Look no further than Aire Serv® when you need high-quality Santa Clara County, CA, heating and air conditioning services. We have been providing top-tier HVAC services throughout North America since 1992. At Aire Serv of Campbell & Saratoga, our HVAC experts pride themselves on consistently delivering outstanding service to all our commercial and residential customers. Of course, heating and cooling best practices have evolved over time, and Campbell & Saratoga HVAC services must reflect those changes. Our service professionals have the knowledge and experience necessary to maintain and repair modern and older units alike. Regardless of whether your heating unit is malfunctioning or you’re in the market for a new system altogether, our Campbell & Saratoga heating service experts are ready to help. And when temperatures climb, you can count on our Campbell & Saratoga air conditioning service professionals to bring their expertise to your home or business.

"I recently had a new HVAC system installed by Aireserv, and I couldn't be more pleased with the results. From the beginning, the team was professional, courteous, and informative. They arrived on time and were very thorough in explaining the detailed installation plan, the features of the new system, and how to operate it. The installation went smoothly, and the technicians cleaned the area while working. Once the system was installed, they ran tests to ensure everything was working perfectly and took the time to answer all of my questions. The new HVAC system has been a game-changer in terms of performance. It heats and cools my home more efficiently than my previous unit, and I've noticed a significant improvement in comfort and air quality. The system runs quietly and maintains an even temperature throughout my home. I also appreciate the energy savings I'm already seeing. My energy bills have been noticeably lower, which I can directly attribute to the new system's efficiency."

Azam M on January 2025


ABC Service HVAC
14225 Lora Drive #36
4.88(
17
)
Approved Pro
ABC Service HVAC
14225 Lora Drive #36
4.88(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
5 years of experience

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"The two gentlemen came and were clean ,very professional and left no mess behind.They explained the process as they went. They also offered to come back if any other repairs were needed."

Sury M on September 2019

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"The two gentlemen came and were clean ,very professional and left no mess behind.They explained the process as they went. They also offered to come back if any other repairs were needed."

Sury M on September 2019


Avatar for Pacific Coast Home Services
Pacific Coast Home Services
2372 Qume Drive, Suite A
4.41(
225
)
Approved Pro
Pacific Coast Home Services
2372 Qume Drive, Suite A
4.41(
225
)
Approved Pro
Customers say: True professional
12 local quotes requested
14 years of experience

Pacific Coast Home Services is a client centered company, serving the greater Bay area community.. We're dedicated to providing full service, from skilled caring technicians, servicing your electrical, plumbing, heating ,Air ,and now bathroom and kitchen remodel . All these professionals come together come together to handle all your repairs, upgrades, installs,and maintenance, offering Home Protection Plans where our technicians come out twice a year to make sure your homes systems are safe and energy efficient.

"Pacific Coast Home Services charged me $450.00 on May 10th to have my Air Conditioner repaired. On July 1st when the heat wave hit San Jose my air conditioner did not work. Pacific Coast did not stand by their GUARANTEE and I had to call another company to do the repairs. Thankfully, they were an honest company and made the repairs. Pacific Coast Home Services consisted of their salesman wanting to sell me a maintenance agreement for $900 ... I should have realized at that point he was not interested in fixing my problem and asked him to leave my house !!! He did remove a few leaves from the air conditioner and clipped a few nips off a bush nearby ... there was no repair done for his billing me $450.00. I am 92 years old and feel this was ELDER ABUSE !!! DO NOT CALL THIS COMPANY!!!"

Nadine T on July 2024

Pacific Coast Home Services is a client centered company, serving the greater Bay area community.. We're dedicated to providing full service, from skilled caring technicians, servicing your electrical, plumbing, heating ,Air ,and now bathroom and kitchen remodel . All these professionals come together come together to handle all your repairs, upgrades, installs,and maintenance, offering Home Protection Plans where our technicians come out twice a year to make sure your homes systems are safe and energy efficient.

"Pacific Coast Home Services charged me $450.00 on May 10th to have my Air Conditioner repaired. On July 1st when the heat wave hit San Jose my air conditioner did not work. Pacific Coast did not stand by their GUARANTEE and I had to call another company to do the repairs. Thankfully, they were an honest company and made the repairs. Pacific Coast Home Services consisted of their salesman wanting to sell me a maintenance agreement for $900 ... I should have realized at that point he was not interested in fixing my problem and asked him to leave my house !!! He did remove a few leaves from the air conditioner and clipped a few nips off a bush nearby ... there was no repair done for his billing me $450.00. I am 92 years old and feel this was ELDER ABUSE !!! DO NOT CALL THIS COMPANY!!!"

Nadine T on July 2024


Avatar for Gosal Heating and Air Conditioning
Gosal Heating and Air Conditioning
34492 Torrey Pine Lane
4.44(
69
)
Approved Pro
Gosal Heating and Air Conditioning
34492 Torrey Pine Lane
4.44(
69
)
Approved Pro
Customers say: Quality work
13 local quotes requested
18 years of experience

At Gosal Heating and Air Conditioning, we have been serving the Bay area since 1992. We strive to give the best experience to our customers with our high quality service at competitive pricing for homes, mobile homes and light commercial. We help customers by designing HYBRID HEAT dual fuel systems designed to deliver maximum economy and energy star thermostat to save you money on utility bills. We are a Carrier Q+ dealer and also work with Trane and other major brands. We also provide ductwork, duct cleaning and advanced air purification systems for your better health. We are highly experienced and believe in the value of the loyal workforce which is why all our servicemen are well paid and enjoy full benefits. We also provide hi-tech ductless split system for central air conditioning. We use only the highest quality materials to excel in the HVAC industry. We value our customers, appreciate your business and welcome the opportunity to serve you.

"He was prompt and fixed in a satisfactory manner."

Anne R on February 2025

At Gosal Heating and Air Conditioning, we have been serving the Bay area since 1992. We strive to give the best experience to our customers with our high quality service at competitive pricing for homes, mobile homes and light commercial. We help customers by designing HYBRID HEAT dual fuel systems designed to deliver maximum economy and energy star thermostat to save you money on utility bills. We are a Carrier Q+ dealer and also work with Trane and other major brands. We also provide ductwork, duct cleaning and advanced air purification systems for your better health. We are highly experienced and believe in the value of the loyal workforce which is why all our servicemen are well paid and enjoy full benefits. We also provide hi-tech ductless split system for central air conditioning. We use only the highest quality materials to excel in the HVAC industry. We value our customers, appreciate your business and welcome the opportunity to serve you.

"He was prompt and fixed in a satisfactory manner."

Anne R on February 2025


Electric Air is a heat pump installer that offers quick estimates and transparent pricing.


Avatar for MaxSeal
MaxSeal
PO Box 32
5.00(
1
)
Approved Pro
MaxSeal
PO Box 32
5.00(
1
)
Approved Pro
1 years of experience
Free onsite estimate

Services offered: - Duct leakage test in CFMs - Duct sealing from the inside using Aeroseal’s patented & non-invasive sealing technology - Air flow volume measurements at registers in CFMs - Duct cleaning - Duct repair - Register air flow adjustments (if dampers are installed) - Duct damper installation

"Excellent process start to end. Alex has great follow through and highly unusual today: EXCELLENT COMMUNICATION! Lots of explanations during the process and before and after results provided. Left house perfectly clean too. Highly recommended if you need duct sealing!"

Richard B on February 2025

Services offered: - Duct leakage test in CFMs - Duct sealing from the inside using Aeroseal’s patented & non-invasive sealing technology - Air flow volume measurements at registers in CFMs - Duct cleaning - Duct repair - Register air flow adjustments (if dampers are installed) - Duct damper installation

"Excellent process start to end. Alex has great follow through and highly unusual today: EXCELLENT COMMUNICATION! Lots of explanations during the process and before and after results provided. Left house perfectly clean too. Highly recommended if you need duct sealing!"

Richard B on February 2025


Avatar for Atlas Trillo Heating & Air Conditioning
Atlas Trillo Heating & Air Conditioning
2305 Paragon Drive
4.80(
28
)
Approved Pro
Atlas Trillo Heating & Air Conditioning
2305 Paragon Drive
4.80(
28
)
Approved Pro
Customers say: True professional
39 local quotes requested
72 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.

"Jose, and the gentleman working with him, did a fantastic job. Not only were they professional, but also kind while working. They kept us entertained and informed. We appreciated their great service."

Lewis C on February 2025

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.

"Jose, and the gentleman working with him, did a fantastic job. Not only were they professional, but also kind while working. They kept us entertained and informed. We appreciated their great service."

Lewis C on February 2025

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Heating and air conditioning services FAQs

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The 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.
A crawl space with insulated ductwork
Mar 14, 2025
Mar 14, 2025
Repairing ductwork in a crawl space is frustrating and difficult, which is reflected in the cost. Learn why limited access results in a premium cost beyond just a simple increase in labor hours.
A duct system in a crawl space
Mar 14, 2025
Mar 14, 2025
The cost to replace ductwork in a crawl space depends on accessibility, size, and whether or not your crawl space requires additional work.
Man removing heat duct
Mar 12, 2025
Mar 12, 2025
Your leaky ductwork may be hiking up your energy bills. We explore the cost of checking air ducts for leaks, which may be worth it for your home.
A mother and a daughter setting the table
Mar 27, 2025
Mar 27, 2025
Wondering why your home is so dusty? We found five reasons why dust may accumulate in your home and how to resolve them and freshen up your space.
A young woman relaxing in her house
Mar 26, 2025
Mar 26, 2025
Condensation on air vents suggests something is wrong with your HVAC system. Learn how to stop condensation on air vents through preventive measures.
Man removing air filter
Mar 26, 2025
Mar 26, 2025
There might be condensation on your ductwork for a variety of reasons, such as clogged ducts, a dirty air filter, or too much moisture in your ducts.