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Find Central a/c installers in Signal Hill

Avatar for QNZ Mechanical

QNZ Mechanical

5.00(
5
)
Approved Pro

QNZ Mechanical

5.00(
5
)
Approved Pro
25 years of experience
Free onsite estimate

At QNZ Mechanical, we provide expert heating, cooling, and electrical solutions for both residential and commercial clients. We understand that comfort, safety, and efficiency are essential which is why our team is dedicated to delivering reliable, high-quality service for every project. From central AC and mini-split installations to advanced zoning systems, air purification, and emergency repairs, we handle it all. We also offer routine maintenance and flexible financing options, ensuring your systems run smoothly year round. With QNZ Mechanical, you can trust our experience, professionalism, and commitment to keeping your home or business comfortable and safe.

"Mike was very knowledgeable and his team was fast. I had my entire ac system replaced the following day with no issues. If you need an AC guy Mike with Qnz is the guy to call."

roberto c on November 2025

At QNZ Mechanical, we provide expert heating, cooling, and electrical solutions for both residential and commercial clients. We understand that comfort, safety, and efficiency are essential which is why our team is dedicated to delivering reliable, high-quality service for every project. From central AC and mini-split installations to advanced zoning systems, air purification, and emergency repairs, we handle it all. We also offer routine maintenance and flexible financing options, ensuring your systems run smoothly year round. With QNZ Mechanical, you can trust our experience, professionalism, and commitment to keeping your home or business comfortable and safe.

"Mike was very knowledgeable and his team was fast. I had my entire ac system replaced the following day with no issues. If you need an AC guy Mike with Qnz is the guy to call."

roberto c on November 2025


Avatar for FIRST CLASS COMFORT HVAC LLC

FIRST CLASS COMFORT HVAC LLC

5.00(
16
)
Approved Pro

FIRST CLASS COMFORT HVAC LLC

5.00(
16
)
Approved Pro
Emergency services offered
Warranties offered

$79 Estimate Charge Here at First Class Comfort HVAC, we believe comfort should never be ordinary. It should be first class. From the moment you call us to the moment your system is running at peak performance, we treat your home like our own. Our certified HVAC experts provide top-quality installations, repairs, and maintenance designed to keep your system running efficiently and your air perfectly balanced year-round. We don’t just replace equipment — we design comfort systems built for long-term reliability, energy savings, and total peace of mind. Whether you’re upgrading to high-efficiency inverter technology, need fast repairs, or want to prevent breakdowns with professional maintenance, First Class Comfort means: -Honest, upfront pricing with no surprises -Skilled, licensed technicians who take pride in their craftsmanship -Clean, courteous service — every time -Top-tier warranties and customer support that go the extra mile We stand by “Comfort That Soars Above The Rest”

"Very professional, clean and thorough. Great job explaining options bases on space restrictions. Took their time on estimate ensuring the quote matched the scope of work. Highly recommend "

Brian C on November 2025

$79 Estimate Charge Here at First Class Comfort HVAC, we believe comfort should never be ordinary. It should be first class. From the moment you call us to the moment your system is running at peak performance, we treat your home like our own. Our certified HVAC experts provide top-quality installations, repairs, and maintenance designed to keep your system running efficiently and your air perfectly balanced year-round. We don’t just replace equipment — we design comfort systems built for long-term reliability, energy savings, and total peace of mind. Whether you’re upgrading to high-efficiency inverter technology, need fast repairs, or want to prevent breakdowns with professional maintenance, First Class Comfort means: -Honest, upfront pricing with no surprises -Skilled, licensed technicians who take pride in their craftsmanship -Clean, courteous service — every time -Top-tier warranties and customer support that go the extra mile We stand by “Comfort That Soars Above The Rest”

"Very professional, clean and thorough. Great job explaining options bases on space restrictions. Took their time on estimate ensuring the quote matched the scope of work. Highly recommend "

Brian C on November 2025


Avatar for Aace's Heating Air Conditioning & Swamp Coolers

Aace's Heating Air Conditioning & Swamp Coolers

4.91(
64
)
Approved Pro

Aace's Heating Air Conditioning & Swamp Coolers

4.91(
64
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
67 local quotes requested

Aace's Heating Air Conditioning & Swamp Coolers 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 12 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!

"The job was done very well; but there was some follow-up items to complete afterwards and that was done to our full satisfaction."

Sheldon W on November 2025

Aace's Heating Air Conditioning & Swamp Coolers 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 12 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!

"The job was done very well; but there was some follow-up items to complete afterwards and that was done to our full satisfaction."

Sheldon W on November 2025


Avatar for Dial One Sonshine

Dial One Sonshine

4.14(
70
)
Approved Pro

Dial One Sonshine

4.14(
70
)
Approved Pro
Customers say: Super punctual
307 local quotes requested
44 years of experience

Dial One Sonshine has been family owned and operated since it was founded in 1981. From a home plumbing business, it has grown and expanded, adding HVAC services. Through these changes we never lost sight of what is most important, our customers. We strive to make your customer service experience exceptional, while providing services in a variety of fields. Our customers don’t need to use multiple companies to services their home. Call us today and learn for yourself why we will quickly become your go-to company for all your plumbing and HVAC needs!

"Service was good but price was very high for this type of service."

linda c on June 2018

Dial One Sonshine has been family owned and operated since it was founded in 1981. From a home plumbing business, it has grown and expanded, adding HVAC services. Through these changes we never lost sight of what is most important, our customers. We strive to make your customer service experience exceptional, while providing services in a variety of fields. Our customers don’t need to use multiple companies to services their home. Call us today and learn for yourself why we will quickly become your go-to company for all your plumbing and HVAC needs!

"Service was good but price was very high for this type of service."

linda c on June 2018


Avatar for SO CAL BOYS HEATING & AIR INC

SO CAL BOYS HEATING & AIR INC

4.96(
48
)
Approved Pro

SO CAL BOYS HEATING & AIR INC

4.96(
48
)
Approved Pro
Super Service Award
Customers say: True professional
13 local quotes requested
3 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"This is my third time working with George from SoCal Boys Heating & Air, and once again he exceeded my expectations. He is consistently reliable, quick to respond, professional, kind, and communicates clearly and efficiently. My husband and I genuinely trust SoCal Boys with any HVAC or water heater issue?we never feel the need to look elsewhere. This time we reached out to George for a water heater issue, and as always, his pricing was honest and fair. Frankly, even if it wasn?t, we?d still call him first because the quality of his work and the peace of mind he gives us is unmatched. We?re always so happy with the service we receive. Highly recommend!"

Gladys C on November 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"This is my third time working with George from SoCal Boys Heating & Air, and once again he exceeded my expectations. He is consistently reliable, quick to respond, professional, kind, and communicates clearly and efficiently. My husband and I genuinely trust SoCal Boys with any HVAC or water heater issue?we never feel the need to look elsewhere. This time we reached out to George for a water heater issue, and as always, his pricing was honest and fair. Frankly, even if it wasn?t, we?d still call him first because the quality of his work and the peace of mind he gives us is unmatched. We?re always so happy with the service we receive. Highly recommend!"

Gladys C on November 2025


"The work that was done by this Business was beyond my families expectations. Sat down and talked with us about the best options of units to choose from. That right there built the trust and this why he is our go to guy and highly recommended to our friends and family !!! Thanks for your service to the community and my family !"

Dominique U on November 2024

We specialize in residential and light commercial HVAC equipment, installation, and repair and maintenance. Over 11 years experience.

"The work that was done by this Business was beyond my families expectations. Sat down and talked with us about the best options of units to choose from. That right there built the trust and this why he is our go to guy and highly recommended to our friends and family !!! Thanks for your service to the community and my family !"

Dominique U on November 2024


Avatar for Socal Republic Heating And Air Conditioning LLC

Socal Republic Heating And Air Conditioning LLC

5.00(
17
)
Approved Pro

Socal Republic Heating And Air Conditioning LLC

5.00(
17
)
Approved Pro
1 years of experience
Free onsite estimate

Socal Republic Heating And Air Conditioning LLC 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.

"After a couple quotes, I decided to go with socal republic. Since day one, these guys made a great impression on me. They were very knowledgeable, had an answer to every one of my questions. Not once did they ever make me feel uncertain or ever question myself with the choice I made. I had the system installed a few months back, and everything is working perfectly fine. Hands down 10 out of 10 service will definitely be calling back for all my future maintenance."

Hector N on November 2025

Socal Republic Heating And Air Conditioning LLC 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.

"After a couple quotes, I decided to go with socal republic. Since day one, these guys made a great impression on me. They were very knowledgeable, had an answer to every one of my questions. Not once did they ever make me feel uncertain or ever question myself with the choice I made. I had the system installed a few months back, and everything is working perfectly fine. Hands down 10 out of 10 service will definitely be calling back for all my future maintenance."

Hector N on November 2025


"Zachery did a maintenance and installed a surge booster. He showed me the corrosion on my filter so I replaced the unit. He was really nice and took time to explain everything I asked. "

Sharon H on June 2025

Greenstar Home Services / RighTime Home Services provides Orange County with Air Conditioning and Heating services. Greenstar Home Services / RighTime Home Services’ expert technicians are available 24/7. Call today and help is on the way!

"Zachery did a maintenance and installed a surge booster. He showed me the corrosion on my filter so I replaced the unit. He was really nice and took time to explain everything I asked. "

Sharon H on June 2025


Avatar for Belle Air Services

Belle Air Services

4.71(
14
)
Approved Pro

Belle Air Services

4.71(
14
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
50 local quotes requested

Belle Air Services is a premier, all-inclusive HVAC contractor in the Los Angeles metro area. We are dedicated to providing our clients with the very best in installation, service, and repair for their heating and cooling needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Heating, and Furnace systems, as well as a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Had them do 2 units on my property. The first one was great, the pre team is great, and the guys who actually do the work. After the 2nd one, where I chose the more expensive option to get a Mitsubishi Heat Pump, the unit would not turn the fan on some of the time. I told them, and wasted insane amounts of time. They kept saying things like 'I am trying to understand what doesn't work.' 'Pretty simple, you choose to run the fan to simply circulate the air and the icon goes, Nest thinks it is on, but does not go on.' Then they said they were going to have a Mitsubishi tech come out and for sure it would get resolved. Never happened. Just listened to a book on Benjamin Franklin and he and John Adams had to share a bed one time while traveling and Adams went to close the window and Franklin said this place will be a tomb if you do. That was what 250 years ago? and HVAC is their business? Guess I will have to take them to court. The office staff post job is a clown car of silly children. So if your job goes great, they will be a good choice. If you run into an issue you will wish you hired ANYONE else. You've been warned."

ROB W on April 2024

Belle Air Services is a premier, all-inclusive HVAC contractor in the Los Angeles metro area. We are dedicated to providing our clients with the very best in installation, service, and repair for their heating and cooling needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Heating, and Furnace systems, as well as a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Had them do 2 units on my property. The first one was great, the pre team is great, and the guys who actually do the work. After the 2nd one, where I chose the more expensive option to get a Mitsubishi Heat Pump, the unit would not turn the fan on some of the time. I told them, and wasted insane amounts of time. They kept saying things like 'I am trying to understand what doesn't work.' 'Pretty simple, you choose to run the fan to simply circulate the air and the icon goes, Nest thinks it is on, but does not go on.' Then they said they were going to have a Mitsubishi tech come out and for sure it would get resolved. Never happened. Just listened to a book on Benjamin Franklin and he and John Adams had to share a bed one time while traveling and Adams went to close the window and Franklin said this place will be a tomb if you do. That was what 250 years ago? and HVAC is their business? Guess I will have to take them to court. The office staff post job is a clown car of silly children. So if your job goes great, they will be a good choice. If you run into an issue you will wish you hired ANYONE else. You've been warned."

ROB W on April 2024


Avatar for Trinity Heating and AC

Trinity Heating and AC

5.00(
9
)
Approved Pro

Trinity Heating and AC

5.00(
9
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 local quotes requested

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025

Trinity Heating and AC is so much more than another heating/AC company. We exceed our customer’s expectations and standards in a number of ways; such as arriving within the promised time frame or leave our work space cleaner then we found it! We provide custom solutions that take all factors into consideration so we can design a system that will meet the needs of your home and everyone in it! We offer so much more then just replacement of your existing system or installation of a new one. Do you have high utility bills when you are running the system, or someone’s allergies are aggravated when running the system? No matter what your need, if it has anything to do with HEATING, COOLING, AIR FLOW, or AIR QUALITY; TRINITY HEATING AND AC is ready to help!

"Chris was able to fix our ac unit, where my old account guy said we NEEDED to replace it!!! Plus Chris is very personable and I believe he is very honest and forthcoming as he could have sold us a new system, but found us a much cheaper option!!"

Sonja H on June 2025

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