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Central a/c service or repairers in Sunnyvale
HVAC DOME INC 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.
"I hired HVAC DOME team to remove my old and old and dated furnace system, and installed brand new Heat pump system, the whole process took less than a week, including ducts replacement! I super happy with the outcome, and I even referred them my next door neighbor to help him with the same project. Can not be more happier! Thank you guys!"
Nora W on February 2024
HVAC DOME INC 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.
"I hired HVAC DOME team to remove my old and old and dated furnace system, and installed brand new Heat pump system, the whole process took less than a week, including ducts replacement! I super happy with the outcome, and I even referred them my next door neighbor to help him with the same project. Can not be more happier! Thank you guys!"
Nora W on February 2024
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
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! Book with us online or feel free to give us a call today! NOTE: We do not do refrigeration.
"High quality work, easy work with."
Fabian x on February 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! Book with us online or feel free to give us a call today! NOTE: We do not do refrigeration.
"High quality work, easy work with."
Fabian x on February 2022
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
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
Air Concepts Mission Provide professional, trustworthy and responsive service to all of our valued customers.
"Very efficient. Found and fixed the issue quickly"
Carter H on July 2024
Air Concepts Mission Provide professional, trustworthy and responsive service to all of our valued customers.
"Very efficient. Found and fixed the issue quickly"
Carter H on July 2024
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!
"I had Majestic Heating and Air install a new furnace in my home, and I?m very pleased with their service. The team was professional, on time, and handled the installation with care and efficiency. "
lily v on April 2025
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!
"I had Majestic Heating and Air install a new furnace in my home, and I?m very pleased with their service. The team was professional, on time, and handled the installation with care and efficiency. "
lily v on April 2025
CPI provides quality Plumbing services for Residential and Commercial customers. Our customers love the personalized, exemplary service that our skilled and professional technicians provide. Call us today and let us make your day!
"Thank you, Antonio! You and CPI are awesome! Fast, easy, and clean! I really appreciate it!"
Pamela L on January 2025
CPI provides quality Plumbing services for Residential and Commercial customers. Our customers love the personalized, exemplary service that our skilled and professional technicians provide. Call us today and let us make your day!
"Thank you, Antonio! You and CPI are awesome! Fast, easy, and clean! I really appreciate it!"
Pamela L on January 2025
AO Heating and Air Conditioning 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 the 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.
"They are punctual and do a very good job! A good person, always willing to help that is why we always use them."
Brian G on May 2019
AO Heating and Air Conditioning 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 the 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.
"They are punctual and do a very good job! A good person, always willing to help that is why we always use them."
Brian G on May 2019
Providing HVAC and insulation services to the San Jose and surrounding areas since 2016, we have over 15 years of experience in these areas. We provide HVAC and insulation services to both residential and commercial clients. Our mission is to make your home more efficient by providing quality services at a reasonable price!
"I had an excellent experience.Jesse. Munez the tech arrived on Time.He serviced the unit and explained a few things to me.The booking procedure was very efficient and the office personnel is extremely friendly and accommodating. I highly recommend insulation Gurus."
Elisabeth S on November 2024
Providing HVAC and insulation services to the San Jose and surrounding areas since 2016, we have over 15 years of experience in these areas. We provide HVAC and insulation services to both residential and commercial clients. Our mission is to make your home more efficient by providing quality services at a reasonable price!
"I had an excellent experience.Jesse. Munez the tech arrived on Time.He serviced the unit and explained a few things to me.The booking procedure was very efficient and the office personnel is extremely friendly and accommodating. I highly recommend insulation Gurus."
Elisabeth S on November 2024
Central a/c service or repairs FAQs
An evaporator coil is the chilled indoor coil that pulls heat out of your home’s air. As warm air passes over it, the refrigerant inside absorbs the heat and sends it outdoors, leaving cooler air behind. When the coil wears out or leaks, you’ll notice weaker cooling, higher bills, or even small puddles of refrigerant around the unit.
You’ll know an evaporator coil is on its last legs when airflow turns weak, the air feels lukewarm, or your energy bill suddenly spikes. Short cycling, hissing sounds, and visible refrigerant leaks are other red flags. Acting quickly keeps the repair bill smaller and prevents a full system breakdown, so call an HVAC pro as soon as you spot these issues.
With routine filter changes and a yearly tune-up, most evaporator coils last 10 to 20 years. Heavy summer use, skipped maintenance, or corrosive indoor air can shave years off that span, while a lightly used, well-kept system can reach the upper end. Staying on top of simple upkeep is the best way to protect the coil’s lifespan.
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