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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon45
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Mammoth Lakes, CA

*The Angi rating for Heating And Air Conditioning Service companies in Mammoth Lakes, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Mammoth Lakes, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on November 11, 2025

Find Heating and air conditioning pros in Mammoth Lakes

All-Temp Heating & Air Conditioning

4.96(
14
)
•Approved Pro

All-Temp Heating & Air Conditioning

4.96(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

All-Temp Heating & Air Conditioning takes pride our company on reliability, great communication, integrity, and quality work on your HVAC systems. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Fast, efficient, and they showed up exactly when they said they would. During the service they also identified a small gas leak and fixed it."

Bob F on September 2023

All-Temp Heating & Air Conditioning takes pride our company on reliability, great communication, integrity, and quality work on your HVAC systems. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Fast, efficient, and they showed up exactly when they said they would. During the service they also identified a small gas leak and fixed it."

Bob F on September 2023

Avatar for Right Method Electric

Right Method Electric

No reviews yet

Right Method Electric

No reviews yet
9 years of experience

We offer a full line of services. Family owned & operated. We rarely turn down work. Our prices are not in line with other people; we Guarantee we are cheaper, more efficient, and quicker. We back up our services with 1 year warranty on the job we perform. No one can beat our prices. email or call us at 559.318.5900

We offer a full line of services. Family owned & operated. We rarely turn down work. Our prices are not in line with other people; we Guarantee we are cheaper, more efficient, and quicker. We back up our services with 1 year warranty on the job we perform. No one can beat our prices. email or call us at 559.318.5900

Mundy's Refrigeration Heating and Air conditioning

No reviews yet

Mundy's Refrigeration Heating and Air conditioning

No reviews yet
37 years of experience

Mundy's Refrigeration Heating and Air conditioning is a refrigeration repair service, located in Lancaster, CA, specialized in refrigerator repairs, engine replacement, as well as heating and air conditioning, both residential and commercial. Air Conditioning Contractor, Refrigerator Repair, Heater Repair, Refrigerator Engine Replacement, Commercial Refrigeration Service, Residential Refrigeration Service Refrigeration Repair Service, HVAC Repair Service, Air Conditioning Repair Service, Local Heating Contractor, Local HVAC Contractor

Mundy's Refrigeration Heating and Air conditioning is a refrigeration repair service, located in Lancaster, CA, specialized in refrigerator repairs, engine replacement, as well as heating and air conditioning, both residential and commercial. Air Conditioning Contractor, Refrigerator Repair, Heater Repair, Refrigerator Engine Replacement, Commercial Refrigeration Service, Residential Refrigeration Service Refrigeration Repair Service, HVAC Repair Service, Air Conditioning Repair Service, Local Heating Contractor, Local HVAC Contractor

Mountain Valley Air Conditioning & Heating

5.00(
2
)

Mountain Valley Air Conditioning & Heating

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Mountain Valley Air Conditioning & Heating

"They showed up on time as promised. They worked very efficiently removing the old unit and installing the new without a problem."

Greg B on June 2019

Mountain Valley Air Conditioning & Heating

"They showed up on time as promised. They worked very efficiently removing the old unit and installing the new without a problem."

Greg B on June 2019

Signature HandyMan

No reviews yet

Signature HandyMan

No reviews yet
25 years of experience

Customer service is our priority and we make a special effort to always work in the best interests of our clients. We do this by applying these values to every project: exceptional time management, high standards of craftsmanship, honesty and integrity, good communication, personal investment, and ongoing skill management. Give us a call today! We look forward to hearing from you.

Customer service is our priority and we make a special effort to always work in the best interests of our clients. We do this by applying these values to every project: exceptional time management, high standards of craftsmanship, honesty and integrity, good communication, personal investment, and ongoing skill management. Give us a call today! We look forward to hearing from you.

Avatar for Second Nature (Formerly FilterEasy)

Second Nature (Formerly FilterEasy)

5.00(
1
)

Second Nature (Formerly FilterEasy)

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Second Nature, formerly FilterEasy, empowers its members to achieve long-lasting, sustainable home wellness with convenient subscription plans, including high-quality home air filters and refrigerator water filters. We exist to simplify home wellness, to make it so easy and convenient that it becomes second nature. Learn about our products and subscribe at www.SecondNature.com/home.

Second Nature, formerly FilterEasy, empowers its members to achieve long-lasting, sustainable home wellness with convenient subscription plans, including high-quality home air filters and refrigerator water filters. We exist to simplify home wellness, to make it so easy and convenient that it becomes second nature. Learn about our products and subscribe at www.SecondNature.com/home.

Appliance Master

4.50(
2
)

Appliance Master

4.50(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Appliance Master is a HVAC Contractor with 25 years of experience in business.Absolutely Licensed and Insured with 24/7 emergency service available.Totally Competitive and Affordable Pricing.

Appliance Master is a HVAC Contractor with 25 years of experience in business.Absolutely Licensed and Insured with 24/7 emergency service available.Totally Competitive and Affordable Pricing.

Avatar for Landmark Energy Upgrades

Landmark Energy Upgrades

4.89(
56
)

Landmark Energy Upgrades

4.89(
56
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!

"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."

Tony T on March 2019

Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!

"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."

Tony T on March 2019

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Heating and Air Conditioning questions, answered by experts

Yes. Getting a whole-house dehumidifier can help you save money on energy bills. How? Your home automatically feels cooler when there’s less humidity in the air (“It’s the humidity that gets ya!” is such a true statement). This means that you won’t need to run your AC as much as you would if you had all that extra humidity in your home.

Modern AC leak sealants work as a temporary measure to stop refrigerant leaks. You can purchase them at most home improvement stores or on online. When using an AC leak sealant, keep in mind that it’s only a temporary solution, so you’ll still need to hire a pro to install a replacement part as soon as possible.

Yes. Your air supply should be balanced. The return and supply ducts need to maintain that balance, and this only occurs because an equal amount of air should be entering and leaving your HVAC system. Changes in pressure, extreme weather, and blocking vents with furniture or your stuff can make the air supply unbalanced and cause your home to get too cold or hot.

In some cases, yes, portable air conditioners are worth buying. They’re a relatively affordable option for cooling small spaces. (On average, they cost between $100 and $500 per unit.) Plus, they’re easy to set up, and you can move them around to cool various parts of your home as needed. However, they aren’t the most efficient AC option, and they tend to be noisy.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The Mammoth Lakes, 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.

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