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TRUSTED BY FOOTHILL RANCH, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon378
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Foothill Ranch

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
189 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 All City Plumbing, Air & Electrical

All City Plumbing, Air & Electrical

4.90(
255
)
Approved Pro

All City Plumbing, Air & Electrical

4.90(
255
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
32 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.

"Michael Avis quickly cleared my clogged kitchen sink and fixed a leaking Trap. Couldn't be happier. he worked so cleanly. will be asking for him for now on."

Jason W on October 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.

"Michael Avis quickly cleared my clogged kitchen sink and fixed a leaking Trap. Couldn't be happier. he worked so cleanly. will be asking for him for now on."

Jason W on October 2025


Avatar for Darrin Durbin

Darrin Durbin

4.94(
66
)
Approved Pro

Darrin Durbin

4.94(
66
)
Approved Pro
Customers say: Quality work
115 local quotes requested
8 years of experience

Darrin Durbin is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Tim and his assistant Stan did a thorough inspection of my AC unit. While they recommended some work, they also said it was not completely necessary. They did not create work, they were completely honest in their assessment. I will definitely use them when it is time for repair or a new unit."

John M on September 2025

Darrin Durbin is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Tim and his assistant Stan did a thorough inspection of my AC unit. While they recommended some work, they also said it was not completely necessary. They did not create work, they were completely honest in their assessment. I will definitely use them when it is time for repair or a new unit."

John M on September 2025


Avatar for Guaranteed Quality Heating & Air

Guaranteed Quality Heating & Air

4.31(
483
)
Approved Pro

Guaranteed Quality Heating & Air

4.31(
483
)
Approved Pro
Customers say: Quality work
36 years of experience
Free onsite estimate

Here at Guaranteed Quality Heating & Air, "WE Stand By Our Name" and we've been established for the past 25 years. Our experts are highly trained to give you the very best service around. "Our Service Prices and Always Reasonable and Fair, We are Guaranteed Quality Heating and Air." Call today for a free estimate!

"Joshua was great, friendly and informative. Able to identify the issue"

Neal T on July 2024

Here at Guaranteed Quality Heating & Air, "WE Stand By Our Name" and we've been established for the past 25 years. Our experts are highly trained to give you the very best service around. "Our Service Prices and Always Reasonable and Fair, We are Guaranteed Quality Heating and Air." Call today for a free estimate!

"Joshua was great, friendly and informative. Able to identify the issue"

Neal T on July 2024


MKAL LLC

5.00(
2
)
Approved Pro

MKAL LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

MKAL 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.

"Reasonable and prompt, highly recommend them"

Farrah Z on December 2023

MKAL 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.

"Reasonable and prompt, highly recommend them"

Farrah Z on December 2023


Avatar for Insulation Commandos of Southern California

Insulation Commandos of Southern California

4.44(
348
)
Approved Pro

Insulation Commandos of Southern California

4.44(
348
)
Approved Pro
Customers say: True professional
414 local quotes requested
7 years of experience

Our services include: Blown in Cellulose & Fiberglass Attic Insulation, Batted (Rolled) Attic Insulation, Fireproof Blown Rockwool Insulation, Fireproof Batted Rockwool Insulation, Wall Insulation, Drill n Fill Wall & Ceiling Insulation, Crawl Space Insulation, Spray Foam Insulation, TAP Pest Control Insulation, New Construction and Commercial Insulation, Insulation Removal, Attic Air Sealing, Attic Decontamination & Sanitization, Radiant Barrier Insulation, Rodent Proofing, Soundproofing, Air Duct Replacement and Cut ins, Air Duct & Dryer Vent Cleaning, Attic Fan Installation, Indoor Air Quality products, Wildfire Ember Mesh, Kitchen Hood Venting & Dryer Duct Replacement.

"I vetted several companies for this project and Insulation Commandos was by far the most thorough and professional. The installers and workmanship were top notch and the price was reasonable. Could not be happier. "

Louis M on September 2025

Our services include: Blown in Cellulose & Fiberglass Attic Insulation, Batted (Rolled) Attic Insulation, Fireproof Blown Rockwool Insulation, Fireproof Batted Rockwool Insulation, Wall Insulation, Drill n Fill Wall & Ceiling Insulation, Crawl Space Insulation, Spray Foam Insulation, TAP Pest Control Insulation, New Construction and Commercial Insulation, Insulation Removal, Attic Air Sealing, Attic Decontamination & Sanitization, Radiant Barrier Insulation, Rodent Proofing, Soundproofing, Air Duct Replacement and Cut ins, Air Duct & Dryer Vent Cleaning, Attic Fan Installation, Indoor Air Quality products, Wildfire Ember Mesh, Kitchen Hood Venting & Dryer Duct Replacement.

"I vetted several companies for this project and Insulation Commandos was by far the most thorough and professional. The installers and workmanship were top notch and the price was reasonable. Could not be happier. "

Louis M on September 2025


Avatar for Cool Air For you

Cool Air For you

4.43(
14
)
Approved Pro

Cool Air For you

4.43(
14
)
Approved Pro
Customers say: Quick response
89 local quotes requested
17 years of experience

With over 22 years of experience, we are heating and air conditioning company working in the Greater San Diego Area. Our company strives to provide the best service for reasonable prices. We are a manufacture approved company and certified for ductless and VRF systems by Mitsubishi. Our technicians train on all brands of heating and air conditioning systems. Our goal is to provide all our customers with the friendliest service, based on knowledge and timeliness. Give us a call today for your free estimate!

"My AC's secondary drain was leaking due to a clogged primary line. Daryle from Cool Air quickly identified the issue and cleared the clog under the master bathroom sink — about a gallon of water came out instantly. The final charge was a bit more than quoted, but Daryle was honest, efficient, and didn’t try to upsell anything. After bad experiences with Service Champions — who I believe sabotaged my system — working with Cool Air was a relief. Vadim, the owner, was also great to talk to. I’ll be using them again."

Bijan G on July 2025

With over 22 years of experience, we are heating and air conditioning company working in the Greater San Diego Area. Our company strives to provide the best service for reasonable prices. We are a manufacture approved company and certified for ductless and VRF systems by Mitsubishi. Our technicians train on all brands of heating and air conditioning systems. Our goal is to provide all our customers with the friendliest service, based on knowledge and timeliness. Give us a call today for your free estimate!

"My AC's secondary drain was leaking due to a clogged primary line. Daryle from Cool Air quickly identified the issue and cleared the clog under the master bathroom sink — about a gallon of water came out instantly. The final charge was a bit more than quoted, but Daryle was honest, efficient, and didn’t try to upsell anything. After bad experiences with Service Champions — who I believe sabotaged my system — working with Cool Air was a relief. Vadim, the owner, was also great to talk to. I’ll be using them again."

Bijan G on July 2025


Avatar for Trinity Heating and AC

Trinity Heating and AC

5.00(
27
)
Approved Pro

Trinity Heating and AC

5.00(
27
)
Approved Pro
Customers say: Quick response
79 local quotes requested
4 years of experience

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!

"They were prompt, professional and fairly priced. It was a very good experience. "

James H on September 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!

"They were prompt, professional and fairly priced. It was a very good experience. "

James H on September 2025


Avatar for Axis Team

Axis Team

5.00(
34
)
Approved Pro

Axis Team

5.00(
34
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
203 local quotes requested

Kept facilities clean with regular sweeping, trash removal, and sanitizing. Completed regular basic maintenance, including lubricating components and replacing worn parts. Met work needs consistently by keeping good stock of parts on hand. Achieved desired performance by aligning and balancing newly installed equipment. Improved equipment function by troubleshooting issues and correcting problems. Kept buildings clean and well-maintained for everyday use. Dismantled machines, equipment, and devices to access and remove defective parts using hoists, cranes, hand tools, and power tools. Dry-wall installation and patching Home appliance installation (microwave/washer dryer/stove /refrigerator/shower door replacement/faucet replacement) Restored bathrooms to full functionality with skills in leak repair, tub patching, and toilet repair. Maintained plumbing, electrical, troubleshooting and repair abilities. Built decks from ground up with secure footings, proper rail distances, and decorative features. Completed neat and professional-looking painting work inside and outside customers' buildings. Helped homeowners and businesses with odd jobs such as random leaks and basic carpentry needs.

"Went well. had kitchen faucet replaced & drain clog snaked clear."

Bruce M on April 2025

Kept facilities clean with regular sweeping, trash removal, and sanitizing. Completed regular basic maintenance, including lubricating components and replacing worn parts. Met work needs consistently by keeping good stock of parts on hand. Achieved desired performance by aligning and balancing newly installed equipment. Improved equipment function by troubleshooting issues and correcting problems. Kept buildings clean and well-maintained for everyday use. Dismantled machines, equipment, and devices to access and remove defective parts using hoists, cranes, hand tools, and power tools. Dry-wall installation and patching Home appliance installation (microwave/washer dryer/stove /refrigerator/shower door replacement/faucet replacement) Restored bathrooms to full functionality with skills in leak repair, tub patching, and toilet repair. Maintained plumbing, electrical, troubleshooting and repair abilities. Built decks from ground up with secure footings, proper rail distances, and decorative features. Completed neat and professional-looking painting work inside and outside customers' buildings. Helped homeowners and businesses with odd jobs such as random leaks and basic carpentry needs.

"Went well. had kitchen faucet replaced & drain clog snaked clear."

Bruce M on April 2025


Avatar for Aace's Heating Air Conditioning & Swamp Coolers

Aace's Heating Air Conditioning & Swamp Coolers

4.90(
63
)
Approved Pro

Aace's Heating Air Conditioning & Swamp Coolers

4.90(
63
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
159 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!

"On time and Great overall service. "

Karen C on August 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!

"On time and Great overall service. "

Karen C on August 2025

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Heating and Air Conditioning questions, answered by experts

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

The average life span of an HVAC system is 15 to 20 years. Even if your old air conditioner is still functional, it isn't as energy-efficient as a newer system (especially one with an Energy Star designation). Older HVAC systems aren't as efficient, and the 10-year mark is when you should start making full system replacement plans. Twenty years in, that plan should be well underway rather than waiting for the unit to die.

The outdoor portions of air conditioners are designed to weather the rain, so you don’t need to worry about it. An awning or roof will help protect them from snow or falling debris, which can do more damage. This is true of both window AC and outdoor units for larger systems.

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

Traditional central air conditioning systems require ductwork to circulate air throughout the home. Alternatively, you can add air conditioning with a mini-split ductless air conditioning system, which can be just as energy efficient as a central air conditioner. This type of system consists of two units–an outside unit that holds the compressor and condenser and an indoor unit that holds an air-handler. With multi-zone ductless systems, there are multiple indoor air handlers tied to a single outdoor compressor/condenser, allowing the system to cool multiple rooms.

The Foothill Ranch, 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.