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TRUSTED BY HOMEOWNERS

Average homeowner rating star icon4.6
Average homeowner rating
Verified reviews icon203
Verified heating and air conditioning services reviews

Heating and air conditioning pros in Paramount

Avatar for Alanis Air
Alanis Air
1937 Julie Dawn Place
4.88(
8
)
Approved Pro
Alanis Air
1937 Julie Dawn Place
4.88(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
193 local quotes requested

Commerical & Residential We serve the Temecula Valley area and The Greater San Diego Area all the way to the Border of Mexico. We continually strive to exceed expectations by ensuring that each client receives the very best service. We are licensed, bonded and insured with the state of California. We provide All HVAC needs for heating or cooling your home or office. All of our Employees have over 15 years of experience under their tool belts. Our Warranty is one of the best in the industry. All employees are background and drug tested. We specialize in Mini Splits, Central heating and cooling and duct work.

"I was really impressed with Stephan Alanis and his team from start to finish while they replaced my old HVAC system with a brand new one. It was finished about six months ago, and both units are running perfectly. I felt comfortable trusting Stephan with this project, even though it was my first time doing business with him. Despite never meeting him in person, Stephan was always just a phone call away to answer any questions or concerns I had. His pricing was super competitive, and the products he recommended have been working great so far. I’d highly recommend him to anyone looking for HVAC services—he and his team really know their stuff!"

Angelina H on April 2025

Commerical & Residential We serve the Temecula Valley area and The Greater San Diego Area all the way to the Border of Mexico. We continually strive to exceed expectations by ensuring that each client receives the very best service. We are licensed, bonded and insured with the state of California. We provide All HVAC needs for heating or cooling your home or office. All of our Employees have over 15 years of experience under their tool belts. Our Warranty is one of the best in the industry. All employees are background and drug tested. We specialize in Mini Splits, Central heating and cooling and duct work.

"I was really impressed with Stephan Alanis and his team from start to finish while they replaced my old HVAC system with a brand new one. It was finished about six months ago, and both units are running perfectly. I felt comfortable trusting Stephan with this project, even though it was my first time doing business with him. Despite never meeting him in person, Stephan was always just a phone call away to answer any questions or concerns I had. His pricing was super competitive, and the products he recommended have been working great so far. I’d highly recommend him to anyone looking for HVAC services—he and his team really know their stuff!"

Angelina H on April 2025


Avatar for HeX HVAC
HeX HVAC
3217 Carson Street
5.00(
5
)
Approved Pro
HeX HVAC
3217 Carson Street
5.00(
5
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

Our founder's mission was clear from the start: to become the foremost authority in the heating and cooling sector. This ambition drives every aspect of our business, from the services we offer to the continuous training of our team.

"Great customer service from beginning to end, I would definitely be recommending HEX HVAC to family and friends!"

Brian L on June 2024

Our founder's mission was clear from the start: to become the foremost authority in the heating and cooling sector. This ambition drives every aspect of our business, from the services we offer to the continuous training of our team.

"Great customer service from beginning to end, I would definitely be recommending HEX HVAC to family and friends!"

Brian L on June 2024


Avatar for The HVAC & Chimney Pros
The HVAC & Chimney Pros
.
5.00(
7
)
Approved Pro
The HVAC & Chimney Pros
.
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
142 local quotes requested

At The Chimney Pros, we specialize in providing top-quality chimney cleaning, inspection, and repair service as well as HVAC services. Our team of experienced professionals is dedicated to ensuring your home stays safe and your chimney functions efficiently. Whether it’s a routine sweep, a thorough inspection, or emergency repairs, we have the expertise to handle it all. Why choose us? • Expertise: Years of experience in chimney cleaning and maintenance. • Customer-Centric: We focus on delivering excellent customer service with clear communication and fair pricing. • Reliable & Efficient: We work promptly to ensure your chimney is in peak condition. Your safety is our priority. Contact The Chimney Pros today for trusted and dependable service!

"They were very helpful and understanding of our limited budget"

Lisa T on March 2025

At The Chimney Pros, we specialize in providing top-quality chimney cleaning, inspection, and repair service as well as HVAC services. Our team of experienced professionals is dedicated to ensuring your home stays safe and your chimney functions efficiently. Whether it’s a routine sweep, a thorough inspection, or emergency repairs, we have the expertise to handle it all. Why choose us? • Expertise: Years of experience in chimney cleaning and maintenance. • Customer-Centric: We focus on delivering excellent customer service with clear communication and fair pricing. • Reliable & Efficient: We work promptly to ensure your chimney is in peak condition. Your safety is our priority. Contact The Chimney Pros today for trusted and dependable service!

"They were very helpful and understanding of our limited budget"

Lisa T on March 2025


Avatar for Trinity Heating and AC
Trinity Heating and AC
1675 West Pampas Lane
5.00(
6
)
Approved Pro
Trinity Heating and AC
1675 West Pampas Lane
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 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!

"Went veey well."

Sam F on April 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!

"Went veey well."

Sam F on April 2025


Avatar for All City Plumbing, Air & Electrical
All City Plumbing, Air & Electrical
9447 London Way
4.90(
249
)
Approved Pro
All City Plumbing, Air & Electrical
9447 London Way
4.90(
249
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
38 local quotes requested

The industry's best technicians make the happiest customers. Turn to the pros at All City Plumbing, Air, & Electrical for all of your plumbing, HVAC, and electrical needs. Proudly serving San Bernardino, Riverside, Los Angeles, and Orange Counties. We have over 5000s 5 star reviews across the web from our thrilled customers. Our company goal is to make sure that we have 100% customer satisfaction. We have options and payment plans that can fit in everyones budget. We provide free estimates and you only pay when you're happy. It's no surprise we've received the Angie's List Super Service Award six years in a row! Established in 2009. ACP was created to deliver exceptional service with the highest quality of craftsmanship. We guarantee you will be happy with our services in that we offer a money back guarantee. Our technicians are regarded by their peers to be some of the best in the industry. Our service experts are continuously trained. There isn't a plumbing or hvac problem we can't solve. We have the experience, knowledge and focus to solve any problem you may have. Give us a call today and let us earn your confidence.

"Our Bathroom shower was clogged. And last minute All city was there within the hour. The technician Antonio Peters was awesome. He was very polite and Went the extra mile to get our drain unclogged. Super great full for this company."

Jeanette on March 2025

The industry's best technicians make the happiest customers. Turn to the pros at All City Plumbing, Air, & Electrical for all of your plumbing, HVAC, and electrical needs. Proudly serving San Bernardino, Riverside, Los Angeles, and Orange Counties. We have over 5000s 5 star reviews across the web from our thrilled customers. Our company goal is to make sure that we have 100% customer satisfaction. We have options and payment plans that can fit in everyones budget. We provide free estimates and you only pay when you're happy. It's no surprise we've received the Angie's List Super Service Award six years in a row! Established in 2009. ACP was created to deliver exceptional service with the highest quality of craftsmanship. We guarantee you will be happy with our services in that we offer a money back guarantee. Our technicians are regarded by their peers to be some of the best in the industry. Our service experts are continuously trained. There isn't a plumbing or hvac problem we can't solve. We have the experience, knowledge and focus to solve any problem you may have. Give us a call today and let us earn your confidence.

"Our Bathroom shower was clogged. And last minute All city was there within the hour. The technician Antonio Peters was awesome. He was very polite and Went the extra mile to get our drain unclogged. Super great full for this company."

Jeanette on March 2025


Avatar for WeBuild Home Efficient
WeBuild Home Efficient
16255 Ventura Blvd #502
5.00(
15
)
Approved Pro
WeBuild Home Efficient
16255 Ventura Blvd #502
5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
179 local quotes requested

Bonded & licensed and insured, we are a family-owned business that specialize in remodeling, renovation and new construction. From A-Z - we do it all! Roofing, Kitchen & Bath remodeling, Landscape, Additions, Solar panels, and more! Delivering quality and customer service to your satisfaction, and we won’t leave until the job is done right and most important - on time ! Schedule your free estimate today to turn your dream project into reality, hustle-free.

"Bar and the WeBuild Efficient team did a great job installing pavers on my driveway and fixing my wooden steps and garage. He was very professional and responsive. I would recommend them, highly."

James T on February 2024

Bonded & licensed and insured, we are a family-owned business that specialize in remodeling, renovation and new construction. From A-Z - we do it all! Roofing, Kitchen & Bath remodeling, Landscape, Additions, Solar panels, and more! Delivering quality and customer service to your satisfaction, and we won’t leave until the job is done right and most important - on time ! Schedule your free estimate today to turn your dream project into reality, hustle-free.

"Bar and the WeBuild Efficient team did a great job installing pavers on my driveway and fixing my wooden steps and garage. He was very professional and responsive. I would recommend them, highly."

James T on February 2024


Avatar for West Coast Chief Repair
West Coast Chief Repair
3300 N San Fernando Blvd
3.73(
11
)
Approved Pro
West Coast Chief Repair
3300 N San Fernando Blvd
3.73(
11
)
Approved Pro
46 local quotes requested
31 years of experience

West Coast Chief Repair specializes in appliance repair of all major household and commercial appliances in Los Angeles. Air Conditioners, Heaters, Furnaces, Commercial Refrigerators, Household Refrigerators, Dishwashers, Garbage Disposals, Washers, Dryers, Ovens, Ranges, Cooktops, Range Hoods, and Water Heaters. 10% off labor for senior citizen discount 10% off labor for military discount 10% off labor for students discount

"The service was not completed properly and water vapor and lint have been venting into the dryer room."

bryna F on December 2024

West Coast Chief Repair specializes in appliance repair of all major household and commercial appliances in Los Angeles. Air Conditioners, Heaters, Furnaces, Commercial Refrigerators, Household Refrigerators, Dishwashers, Garbage Disposals, Washers, Dryers, Ovens, Ranges, Cooktops, Range Hoods, and Water Heaters. 10% off labor for senior citizen discount 10% off labor for military discount 10% off labor for students discount

"The service was not completed properly and water vapor and lint have been venting into the dryer room."

bryna F on December 2024


Avatar for Efficient Incorporated
Efficient Incorporated
101 North Citrus Avenue
5.00(
2
)
Approved Pro
Efficient Incorporated
101 North Citrus Avenue
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
126 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Went smoothly, very responsive, really pleasant to work with."

A W on October 2023

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Went smoothly, very responsive, really pleasant to work with."

A W on October 2023


Avatar for HD MECHANICAL INC
HD MECHANICAL INC
7445 Mohawk Circle
5.00(
17
)
Approved Pro
HD MECHANICAL INC
7445 Mohawk Circle
5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
269 local quotes requested

We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.

"The thing that stood out was they got a guy named Brandon, and I was satisfied. He did it professionally and efficiently. They were way above average, just exceptional. Got the the whole thing done pretty fast. Brandon is very friendly, easy to work with, and knows what he is doing."

Christopher J on March 2025

We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.

"The thing that stood out was they got a guy named Brandon, and I was satisfied. He did it professionally and efficiently. They were way above average, just exceptional. Got the the whole thing done pretty fast. Brandon is very friendly, easy to work with, and knows what he is doing."

Christopher J on March 2025


Avatar for Southland Heating and Air Conditioning
Southland Heating and Air Conditioning
3543 Old Conejo Rd
4.69(
154
)
Approved Pro
Southland Heating and Air Conditioning
3543 Old Conejo Rd
4.69(
154
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
47 local quotes requested

Choosing the right Heating and Air Conditioning Contractor is very important. Chances are you are going to make a substantial investment in your new HVAC system with which ever contractor you choose. There is nothing worse than investing a large amount of your hard earned money in a new system and winding up with a system that is noisy, inefficient, and does not perform properly. Or even worse, one that fails prematurely. Surprisingly enough most HVAC Contractors have no formal training. Untrained HVAC Contractors frequently do not size systems properly which could result in improper cooling, very high utility bills, and even systems that fail prematurely. Before you even consider a contractor make sure they are NATE Certified and Air Balance Certified. North American Technician Excellence is the Prestigious Certification of HVAC Competence. Using a NATE certified contractor is like using a surgeon that graduated Harvard Medical School with honors. Air Balance Certified contractors understand airflow which equates to efficiency and comfort in your home. To have a system designed properly a contractor has to understand air flow. At Southland we offer this high level of expertise. Yes, we are very good at what we do and there is no question about that. Our reviews and ratings prove that. Our installations are unparalleled with every system being designed specifically to the home. All options for a quality installation are included in every system we install. From basic systems, high efficiency systems, to specialized zoning we do it all. If you are searching for a knowledgeable contractor you have found one here. We offer extremely competitive pricing and expert design knowledge.

"Very well. They did the job quickly, quietly and cleanly."

Carol J on January 2023

Choosing the right Heating and Air Conditioning Contractor is very important. Chances are you are going to make a substantial investment in your new HVAC system with which ever contractor you choose. There is nothing worse than investing a large amount of your hard earned money in a new system and winding up with a system that is noisy, inefficient, and does not perform properly. Or even worse, one that fails prematurely. Surprisingly enough most HVAC Contractors have no formal training. Untrained HVAC Contractors frequently do not size systems properly which could result in improper cooling, very high utility bills, and even systems that fail prematurely. Before you even consider a contractor make sure they are NATE Certified and Air Balance Certified. North American Technician Excellence is the Prestigious Certification of HVAC Competence. Using a NATE certified contractor is like using a surgeon that graduated Harvard Medical School with honors. Air Balance Certified contractors understand airflow which equates to efficiency and comfort in your home. To have a system designed properly a contractor has to understand air flow. At Southland we offer this high level of expertise. Yes, we are very good at what we do and there is no question about that. Our reviews and ratings prove that. Our installations are unparalleled with every system being designed specifically to the home. All options for a quality installation are included in every system we install. From basic systems, high efficiency systems, to specialized zoning we do it all. If you are searching for a knowledgeable contractor you have found one here. We offer extremely competitive pricing and expert design knowledge.

"Very well. They did the job quickly, quietly and cleanly."

Carol J on January 2023

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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
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Apr 25, 2025
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Apr 22, 2025
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Why are some rooms colder than others? If your living room is toasty but the bedroom is freezing, here are a few reasons why and how to fix it.
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