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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon207
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Westminster

Avatar for Dial One Sonshine

Dial One Sonshine

4.33(
60
)
Approved Pro

Dial One Sonshine

4.33(
60
)
Approved Pro
Customers say: Super punctual
44 years of experience
Free onsite estimate

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 NT Electric & HVAC Inc

NT Electric & HVAC Inc

5.00(
8
)
Approved Pro

NT Electric & HVAC Inc

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

Our business is our livelihood but it is also so much more. NT Electric & HVAC Inc was started to fill in a void in the current market and to make a business that people can place their trust in. Over the years we have never lost our commitment to our clients and that is what has allowed us to succeed in a very competitive industry. The employees of NT Electric & HVAC Inc stand committed to our purpose and will provide the best service!

"Smooth from top to bottom. Very reasonable price for the work done, including necessary City and State permits."

Medel L on December 2024

Our business is our livelihood but it is also so much more. NT Electric & HVAC Inc was started to fill in a void in the current market and to make a business that people can place their trust in. Over the years we have never lost our commitment to our clients and that is what has allowed us to succeed in a very competitive industry. The employees of NT Electric & HVAC Inc stand committed to our purpose and will provide the best service!

"Smooth from top to bottom. Very reasonable price for the work done, including necessary City and State permits."

Medel L on December 2024


Avatar for Harmony Electrical, Plumbing and Air

Harmony Electrical, Plumbing and Air

5.00(
13
)
Approved Pro

Harmony Electrical, Plumbing and Air

5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1664 local quotes requested

Harmony Electrical, Plumbing and Air is dedicated to delivering exceptional electrical, plumbing and Air services tailored to meet the unique needs of each client. Our mission is to ensure reliability and quality through customized solutions, supported by a team of highly skilled and experienced technicians who are always prepared to provide outstanding service. We are committed to your satisfaction and will not consider the job complete until it meets our high standards. Our pride lies in the quality of our work and our commitment to excellent customer service. Explore the range of services we offer below, and feel free to call or click to schedule your free estimate today!

"Very good company, great service and always on top of everything would highly recommend to anyone!!"

Lauren D on October 2025

Harmony Electrical, Plumbing and Air is dedicated to delivering exceptional electrical, plumbing and Air services tailored to meet the unique needs of each client. Our mission is to ensure reliability and quality through customized solutions, supported by a team of highly skilled and experienced technicians who are always prepared to provide outstanding service. We are committed to your satisfaction and will not consider the job complete until it meets our high standards. Our pride lies in the quality of our work and our commitment to excellent customer service. Explore the range of services we offer below, and feel free to call or click to schedule your free estimate today!

"Very good company, great service and always on top of everything would highly recommend to anyone!!"

Lauren D on October 2025


SINCLAIR HEATING & AIR CONDITIONING LLC

4.99(
81
)
Approved Pro

SINCLAIR HEATING & AIR CONDITIONING LLC

4.99(
81
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
15 local quotes requested

2 EMPLOYEES. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. EXTRA CHARGES FOR AFTER HOURS SERVICE. *PHONE CORRESPONDENCE IS PREFERRED FOR NEW CLIENTS*

"fantastic Nick came out and not only fixed mine but took a look at my son's down the street and recharged his. Couldn't be any happier would definately hire again."

Rob T on July 2021

2 EMPLOYEES. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. EXTRA CHARGES FOR AFTER HOURS SERVICE. *PHONE CORRESPONDENCE IS PREFERRED FOR NEW CLIENTS*

"fantastic Nick came out and not only fixed mine but took a look at my son's down the street and recharged his. Couldn't be any happier would definately hire again."

Rob T on July 2021


Kyle Beym Home Improvement

4.45(
401
)
Approved Pro

Kyle Beym Home Improvement

4.45(
401
)
Approved Pro
Customers say: Terrific value
707 local quotes requested
17 years of experience

We provide home and some commercial remodeling services and general maintenance. I am licensed, bonded, and insured as a General B Contractor. I have been in business working solely from referrals, having spent 17 years working in various trade capacities of construction. I provide free estimates to Orange, and eastern Los Angeles. I take pride in my work, consider myself an artist, and love my job, that's why I'm personally involved in all the work we do for you.

"Kyle was punctual, easy to work with, performed all tasks very well, and left each work area spotless when he was finished. This was a great experience!"

Kathy H on March 2024

We provide home and some commercial remodeling services and general maintenance. I am licensed, bonded, and insured as a General B Contractor. I have been in business working solely from referrals, having spent 17 years working in various trade capacities of construction. I provide free estimates to Orange, and eastern Los Angeles. I take pride in my work, consider myself an artist, and love my job, that's why I'm personally involved in all the work we do for you.

"Kyle was punctual, easy to work with, performed all tasks very well, and left each work area spotless when he was finished. This was a great experience!"

Kathy H on March 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
31 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


Avatar for On Time Home Services

On Time Home Services

4.95(
19
)
Approved Pro

On Time Home Services

4.95(
19
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
96 local quotes requested

On Time Home Services is an HVAC company that has been putting our customers first since opening in 2005. We offer expert heating, cooling, and indoor air quality services to homes throughout Temecula and surrounding areas. To make your repair, replacement, installation, or maintenance service as convenient as possible we provide flexible scheduling, same-day appointments, and emergency after-hours and weekend repairs. With free, in-person estimates, friendly and honest customer service, and workmanship that is second to none, you can trust On Time Home Services to be your partner in comfort. Our licensed and insured technicians will go above and beyond to ensure our customers’ complete satisfaction.

"Fantastic service. Ryan and Carlos were very knowledgeable and courteous. Even had same day service. Would recommend to all family and friends! Called on when to expect them so I wasn’t waiting around."

Debbie S on April 2024

On Time Home Services is an HVAC company that has been putting our customers first since opening in 2005. We offer expert heating, cooling, and indoor air quality services to homes throughout Temecula and surrounding areas. To make your repair, replacement, installation, or maintenance service as convenient as possible we provide flexible scheduling, same-day appointments, and emergency after-hours and weekend repairs. With free, in-person estimates, friendly and honest customer service, and workmanship that is second to none, you can trust On Time Home Services to be your partner in comfort. Our licensed and insured technicians will go above and beyond to ensure our customers’ complete satisfaction.

"Fantastic service. Ryan and Carlos were very knowledgeable and courteous. Even had same day service. Would recommend to all family and friends! Called on when to expect them so I wasn’t waiting around."

Debbie S on April 2024


Vasquez Construction

5.00(
2
)
Approved Pro

Vasquez Construction

5.00(
2
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
668 local quotes requested

I have been in the construction businesses for 20 plus years, and can do anything you want. I have worked in many areas of construction for example remodeling spaces, painting, building structures and so forth. I am independent owned.

"Easy communication. I needed a bathroom exhaust fan installed where there is no attic access. The project included wiring and ductwork to the exterior as well as drywall removal and repair, and then finishing everything beautifully. The two-man team of Vasquez did as instructed and also fixed some old shoddy work that was in the way of the new duct and wiring. They used good materials and did good work at a good price. They were also very respectful of my home, keeping the mess contained and cleaning up after. I would hire again."

Mark F on May 2025

I have been in the construction businesses for 20 plus years, and can do anything you want. I have worked in many areas of construction for example remodeling spaces, painting, building structures and so forth. I am independent owned.

"Easy communication. I needed a bathroom exhaust fan installed where there is no attic access. The project included wiring and ductwork to the exterior as well as drywall removal and repair, and then finishing everything beautifully. The two-man team of Vasquez did as instructed and also fixed some old shoddy work that was in the way of the new duct and wiring. They used good materials and did good work at a good price. They were also very respectful of my home, keeping the mess contained and cleaning up after. I would hire again."

Mark F on May 2025


Avatar for Global Green Solutions

Global Green Solutions

5.00(
100
)
Approved Pro

Global Green Solutions

5.00(
100
)
Approved Pro
Customers say: Quick response
68 local quotes requested
20 years of experience

Whether you need an A/C or Heater installation or repair in Los Angeles, our team of HVAC pros is here to deliver outstanding service. We're passionate about delivering an exceptional heating and air conditioning experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We're committed to serving you with quality and great value. We'll come to you, listen to your needs, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long-term customers time and time again, choosing us for all the heating, AC, air ducts needs. Contact us today and see what our commitment to quality is all about! We may not be related, but you'll feel like we're family. We Service Los Angeles and surrounding areas. Call us today for a free estimate!

"Reliable and trustworthy service. They fixed a persistent airflow issue that other companies couldn?t solve. Clear explanations and top-tier expertise. Very satisfied with the results."

Gayle S on December 2025

Whether you need an A/C or Heater installation or repair in Los Angeles, our team of HVAC pros is here to deliver outstanding service. We're passionate about delivering an exceptional heating and air conditioning experience. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. We're committed to serving you with quality and great value. We'll come to you, listen to your needs, and then come back to you with a logical, feasible plan that works for you. Our first-time customers continually become our long-term customers time and time again, choosing us for all the heating, AC, air ducts needs. Contact us today and see what our commitment to quality is all about! We may not be related, but you'll feel like we're family. We Service Los Angeles and surrounding areas. Call us today for a free estimate!

"Reliable and trustworthy service. They fixed a persistent airflow issue that other companies couldn?t solve. Clear explanations and top-tier expertise. Very satisfied with the results."

Gayle S on December 2025


Avatar for Cool Air Technologies Inc

Cool Air Technologies Inc

4.96(
460
)
Approved Pro

Cool Air Technologies Inc

4.96(
460
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
33 local quotes requested

??SUPER SERVICE AWARD Winner??? Awarded 14 consecutive Years in a row! Thank you for visiting our profile. Cool Air Technologies was started over 22 years ago by Bill and Trish McIntosh. We are a small Mom and Pop company that services all of Orange County. We provide service on all makes and models. And we offer free no-pressure bids on new equipment. We accept AMEX MC, VISA and offer up to 2 Year Financing on new equipment as well. A little over 14 years ago, a few customers put us on Angie's List. And ever since we've been honored to have consecutively receive the Super Service Award (2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. It's an honor that is only bestowed upon 2% of Angie's List contractors. It is determined by Price, Customer Service, Quality, and Professionalism. We have also maintained a 5 Star Rating on Google as well as Yelp. Altogether there are over 2500 reviews on our company. We are proud of our awards. And we hope that your experience with us goes beyond your expectations. :) ‘Every job is backed by my personal guarantee that you will be completely satisfied." Bill McIntosh -owner of Cool Air Technologies. We appreciate your business and the opportunity to serve you! Bringing you comfort from our family to yours! Please contact us directly at (714) 731-9292 or (800) 453-0444

"I’ve had the pleasure of working with Bill and Cool Air Technologies on several occasions and they never disappoint. They’ve done a HVAC replacement as well as an entirely new HVAC system install with impeccable results. They were professional and communicative; answering all my questions and working through any issues promptly. I will look nowhere else for my HVAC needs and highly recommend them to anyone considering their services."

Broc Y on June 2024

??SUPER SERVICE AWARD Winner??? Awarded 14 consecutive Years in a row! Thank you for visiting our profile. Cool Air Technologies was started over 22 years ago by Bill and Trish McIntosh. We are a small Mom and Pop company that services all of Orange County. We provide service on all makes and models. And we offer free no-pressure bids on new equipment. We accept AMEX MC, VISA and offer up to 2 Year Financing on new equipment as well. A little over 14 years ago, a few customers put us on Angie's List. And ever since we've been honored to have consecutively receive the Super Service Award (2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019. It's an honor that is only bestowed upon 2% of Angie's List contractors. It is determined by Price, Customer Service, Quality, and Professionalism. We have also maintained a 5 Star Rating on Google as well as Yelp. Altogether there are over 2500 reviews on our company. We are proud of our awards. And we hope that your experience with us goes beyond your expectations. :) ‘Every job is backed by my personal guarantee that you will be completely satisfied." Bill McIntosh -owner of Cool Air Technologies. We appreciate your business and the opportunity to serve you! Bringing you comfort from our family to yours! Please contact us directly at (714) 731-9292 or (800) 453-0444

"I’ve had the pleasure of working with Bill and Cool Air Technologies on several occasions and they never disappoint. They’ve done a HVAC replacement as well as an entirely new HVAC system install with impeccable results. They were professional and communicative; answering all my questions and working through any issues promptly. I will look nowhere else for my HVAC needs and highly recommend them to anyone considering their services."

Broc Y on June 2024

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Heating and Air Conditioning questions, answered by experts

ACs don't run on water. They're not connected to drain pipes or any part of your plumbing system. However, they need refrigerant to run. Refrigerant is a gas or liquid that has a low boiling point and absorbs the heat in your home. ACs need this in order to be functional and cool your home. If you suspect your AC is low on refrigerant, you need to contact a licensed HVAC professional. Refrigerant is a dangerous chemical that requires specialized training and permits to work with. 

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

If your AC refrigerant is low, you may notice that the unit takes longer than usual to cool your home or that your energy bills are higher. You may even feel a warm breeze coming from the vents when the AC refrigerant is low. Don’t attempt to check refrigerant levels yourself. Only certified AC repair pros should check and refill refrigerant.

AC capacitors typically last for a long time and many last for the life of the air conditioning unit. You can expect to get about 20 years out of an AC capacitor. When an AC capacitor suffers an untimely death, it’s usually due to overheating, a power surge, or a short circuit. You can prevent these events from happening and extend the life of an AC capacitor by getting regular AC maintenance every year.

This is a bit of a trick question. Even though the seasons arrive at the same time every year, the weather doesn’t always behave according to the calendar. So, while it’s fair to say that you can expect to turn on your AC starting in late May or early June, it all depends on the outside temperature and how cool you like to keep your home.

The Westminster, CA homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.