Get matched with top central a/c installers in Signal Hill, CA

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.

$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”

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!

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!

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!

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

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.

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!

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!

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!