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.
"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 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.
"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
Here at A G Heating and Air Conditioning we are a full service HVAC company who is licensed and insured in California. We do repairs and installs for all systems for residential and commercial clients. We pride ourselves on our great service and ability to keep everything running well. Call now for a free estimate.
"AG Heating was referred to me from my insurance company. Andres and Humberto were great! Prompt, professional, nice and worked clean. He assessed the problem with my wall heater and had it working fast. He new his stuff, I would definitely request them in the future if I have heater needs!"
Stephanie P on March 2020
Here at A G Heating and Air Conditioning we are a full service HVAC company who is licensed and insured in California. We do repairs and installs for all systems for residential and commercial clients. We pride ourselves on our great service and ability to keep everything running well. Call now for a free estimate.
"AG Heating was referred to me from my insurance company. Andres and Humberto were great! Prompt, professional, nice and worked clean. He assessed the problem with my wall heater and had it working fast. He new his stuff, I would definitely request them in the future if I have heater needs!"
Stephanie P on March 2020
Welcome to ALANIS AIR, a family-owned and operated, top performing, highly rated HVAC company. We started 10 years ago in San Diego. Thanks to our unwavering dedication to quality and customer satisfaction, we're now serving the SF Bay Area and surrounding areas with one mission: to provide unparalleled comfort and care to every home we serve. We are offering the BEST deals in the industry in order to grow our business and demonstrate our excellence in service. At Alanis Air, we understand that your home is your sanctuary, and our goal is to ensure it remains a haven of comfort throughout every season. When you choose Alanis Air, you're not only selecting a service provider; you're inviting a trusted partner into your home. We take time to listen to your needs, so we can deliver solutions that fit your budget and lifestyle. If you're looking for TOP QUALITY work at a GREAT PRICE, Alanis Air will exceed your expectations! ALANIS AIR? Where Comfort Meets Care, Every Step of the Way.
"Alanis Air did a great job with my HVAC project. John Alanis answered all my questions and worked with me in deciding which system I should choose when replacing my very old system. His crew completed the work in one day, cleaned up the area and disposed of my old system. They were very efficient, knowledgeable and friendly. I would recommend Alanis Air for any of your HVAC needs! Thank you John, Santiago, Angel and Ismael :-)"
Amy F on May 2025
Welcome to ALANIS AIR, a family-owned and operated, top performing, highly rated HVAC company. We started 10 years ago in San Diego. Thanks to our unwavering dedication to quality and customer satisfaction, we're now serving the SF Bay Area and surrounding areas with one mission: to provide unparalleled comfort and care to every home we serve. We are offering the BEST deals in the industry in order to grow our business and demonstrate our excellence in service. At Alanis Air, we understand that your home is your sanctuary, and our goal is to ensure it remains a haven of comfort throughout every season. When you choose Alanis Air, you're not only selecting a service provider; you're inviting a trusted partner into your home. We take time to listen to your needs, so we can deliver solutions that fit your budget and lifestyle. If you're looking for TOP QUALITY work at a GREAT PRICE, Alanis Air will exceed your expectations! ALANIS AIR? Where Comfort Meets Care, Every Step of the Way.
"Alanis Air did a great job with my HVAC project. John Alanis answered all my questions and worked with me in deciding which system I should choose when replacing my very old system. His crew completed the work in one day, cleaned up the area and disposed of my old system. They were very efficient, knowledgeable and friendly. I would recommend Alanis Air for any of your HVAC needs! Thank you John, Santiago, Angel and Ismael :-)"
Amy F on May 2025
At COMFORT ENERGY, we are a full service team of licensed, highly trained and experienced professional installers and service technicians able to address every need of your commercial and residential heating and cooling needs. With more than 30 years of experience in the field, our staff is able to address everything from a simple service issue to complex integrated systems.
"They sent over a knowledgeable technician who was polite and professional. He was able to diagnose exactly what the problem was and fix it. "
Madhu V on June 2025
At COMFORT ENERGY, we are a full service team of licensed, highly trained and experienced professional installers and service technicians able to address every need of your commercial and residential heating and cooling needs. With more than 30 years of experience in the field, our staff is able to address everything from a simple service issue to complex integrated systems.
"They sent over a knowledgeable technician who was polite and professional. He was able to diagnose exactly what the problem was and fix it. "
Madhu V on June 2025
At Bell Brothers, we’re The No Surprise Guys™—the price we quote is the price you pay, with no hidden fees. With 30+ years of experience, 4,700+ 5-star Google reviews, and 9 written guarantees, we’re Sacramento’s trusted choice for heating and cooling. Whether it’s A/C repair, furnace installation, or ductwork, our certified, background-checked technicians—The World’s Friendliest Technicians℠—show up on time, in uniform, and ready to help. For honest HVAC service and year-round comfort, count on Bell Brothers.
"sometimes it takes time to complete the work"
Jayant S on August 2024
At Bell Brothers, we’re The No Surprise Guys™—the price we quote is the price you pay, with no hidden fees. With 30+ years of experience, 4,700+ 5-star Google reviews, and 9 written guarantees, we’re Sacramento’s trusted choice for heating and cooling. Whether it’s A/C repair, furnace installation, or ductwork, our certified, background-checked technicians—The World’s Friendliest Technicians℠—show up on time, in uniform, and ready to help. For honest HVAC service and year-round comfort, count on Bell Brothers.
"sometimes it takes time to complete the work"
Jayant S on August 2024
Welcome to CaliforniAir Heating & Air Conditioning. We proudly service San Jose and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.
"Trouble shot the problem and procured the parts necessary to repair the a/c."
Patrick S on May 2024
Welcome to CaliforniAir Heating & Air Conditioning. We proudly service San Jose and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed.
"Trouble shot the problem and procured the parts necessary to repair the a/c."
Patrick S on May 2024
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.
"Everything was done well and they worked with my electrical contractor to get the electrical circuits needed for the installation."
Mark L on June 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.
"Everything was done well and they worked with my electrical contractor to get the electrical circuits needed for the installation."
Mark L on June 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
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
Looking for reliable Heating & A/C services in the SAN FRANCISCO BAY area? 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!
"Venice the technician was friendly and was able to quickly diagnose the problem which was the hose that connected to the pump broke and it looked pretty old. Since we couldn’t just replace the connector to the hose, getting a new part was the best choice."
Ed U on June 2025
Looking for reliable Heating & A/C services in the SAN FRANCISCO BAY area? 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!
"Venice the technician was friendly and was able to quickly diagnose the problem which was the hose that connected to the pump broke and it looked pretty old. Since we couldn’t just replace the connector to the hose, getting a new part was the best choice."
Ed U on June 2025
Welcome to JZ HVAC Contractor, JZ HVAC Contractor has established itself as a trusted provider of heating, ventilation, and air conditioning solutions in the Bay Area, California. Our experienced team is committed to delivering top-notch services, including installation, repair, and maintenance for both residential and commercial clients. At JZ HVAC Contractor, we pride ourselves on our expertise, reliability, and customer satisfaction, ensuring your indoor environment is comfortable and energy-efficient all year round. Whether you need a quick repair or a comprehensive HVAC system upgrade, you can count on JZ HVAC CONTRACTOR to meet all your heating and cooling needs.
"Joy did excellent work: removed my old ducts and replaced them and added additional vents. He communicated well and was friendly and helpful. I highly recommend him!"
Kelly H on October 2024
Welcome to JZ HVAC Contractor, JZ HVAC Contractor has established itself as a trusted provider of heating, ventilation, and air conditioning solutions in the Bay Area, California. Our experienced team is committed to delivering top-notch services, including installation, repair, and maintenance for both residential and commercial clients. At JZ HVAC Contractor, we pride ourselves on our expertise, reliability, and customer satisfaction, ensuring your indoor environment is comfortable and energy-efficient all year round. Whether you need a quick repair or a comprehensive HVAC system upgrade, you can count on JZ HVAC CONTRACTOR to meet all your heating and cooling needs.
"Joy did excellent work: removed my old ducts and replaced them and added additional vents. He communicated well and was friendly and helpful. I highly recommend him!"
Kelly H on October 2024
Heat pumps don’t create heat—they move it. A refrigerant cycles through two coils, picking up warmth from outside air in winter and releasing it indoors. In summer, the process reverses, pulling heat out of your house and sending it outside. Because the system simply transfers energy rather than generating it, you get efficient, year-round comfort without burning fuel.
With proper installation and regular upkeep, a quality heat pump typically lasts 12 to 20 years. Swap or clean filters as directed, book an annual tune-up, and tackle small repairs quickly to keep the system running smoothly. Skipping maintenance can shave years off the life span and undercut the energy savings you expect.
Heat pumps shine in areas where winter temps stay above about 40°F. Below that mark, efficiency drops, and once readings dip under 25°F you’ll want a backup heat source. Choose a model with a high Heating Seasonal Performance Factor (HSPF) and budget for supplemental heat if your region sees deep freezes. That combo keeps comfort levels high without driving up utility bills.
The biggest drawbacks are the up-front price tag and lower efficiency in extreme cold. If winter temps in your area drop below 10°F, the outdoor unit can freeze, and you may need electric upgrades or duct tweaks to keep things running. Factor in these extras before you buy so the long-term savings aren’t wiped out by surprise costs.