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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon262
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Millville

Avatar for SUNDIAL HEATING & AIR INC

SUNDIAL HEATING & AIR INC

5.00(
7
)
Approved Pro

SUNDIAL HEATING & AIR INC

5.00(
7
)
Approved Pro
Customers say: Quick response
Free onsite estimate
Emergency services offered

At Sundial Heating & Air, we provide reliable, high-efficiency heating and cooling solutions with the kind of care you’d expect from a local neighbor. Based right here in Shasta County, we specialize in residential HVAC service, repairs, and system replacements that help keep your home comfortable all year long. We’re proud to be a small, skilled team that values craftsmanship, honesty, and long-term customer relationships. Whether it’s a seasonal tune-up, an urgent repair, or a full system upgrade, our goal is to make the process simple, affordable, and stress-free. We service Redding, Anderson, Palo Cedro, Cottonwood, and the surrounding areas — and we back our work with a satisfaction guarantee. Call us when you're ready for straightforward advice, fair pricing, and HVAC service done right.

"Vince and his crew were professional, courteous and very knowledgeable. Great price on an efficient and quiet air conditioner. So happy with the end results. Highly recommend. "

Rosemary J on October 2025

At Sundial Heating & Air, we provide reliable, high-efficiency heating and cooling solutions with the kind of care you’d expect from a local neighbor. Based right here in Shasta County, we specialize in residential HVAC service, repairs, and system replacements that help keep your home comfortable all year long. We’re proud to be a small, skilled team that values craftsmanship, honesty, and long-term customer relationships. Whether it’s a seasonal tune-up, an urgent repair, or a full system upgrade, our goal is to make the process simple, affordable, and stress-free. We service Redding, Anderson, Palo Cedro, Cottonwood, and the surrounding areas — and we back our work with a satisfaction guarantee. Call us when you're ready for straightforward advice, fair pricing, and HVAC service done right.

"Vince and his crew were professional, courteous and very knowledgeable. Great price on an efficient and quiet air conditioner. So happy with the end results. Highly recommend. "

Rosemary J on October 2025


Avatar for A&S HEATING AND AIR

A&S HEATING AND AIR

4.88(
8
)
Approved Pro

A&S HEATING AND AIR

4.88(
8
)
Approved Pro
Free onsite estimate
Emergency services offered

With 25+ years experience we pride our company on reliability, great communication, integrity, and quality work. 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!

"Extremely caring and professionally trained. Thank you for your service"

Susan R on December 2025

With 25+ years experience we pride our company on reliability, great communication, integrity, and quality work. 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!

"Extremely caring and professionally trained. Thank you for your service"

Susan R on December 2025


Avatar for Gallaghers Plumbing, Heating & Air Inc.

Gallaghers Plumbing, Heating & Air Inc.

3.62(
71
)
Approved Pro

Gallaghers Plumbing, Heating & Air Inc.

3.62(
71
)
Approved Pro
Customers say: Super punctual
36 years of experience
Free onsite estimate

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.


Avatar for Allianz Heating & Air

Allianz Heating & Air

4.94(
87
)

Allianz Heating & Air

4.94(
87
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Allianz heating & air was established in Redding, California in April of 1992 to provide the very best in comfort solutions, the primary focus of the company has been the maintenance, repair and replacement of residential heating and cooling equipment, Martin Graeff (President of Allianz) is a second-generation contractor, Believes that do it right, stand by it, and customers will see the value. Additional Contact Names: Anderson & Red Bluff. Additional Phone Number - (530) 529-1267. Award winning.

"Great service every time. Our heater needed some serious cleaning after not having been maintained for several years and they got it sparkling. A valve was also broken and leaking gas and rather than leave us without heat halfway through winter they did the repair for free. Dan you're the man!"

April I on January 2023

Allianz heating & air was established in Redding, California in April of 1992 to provide the very best in comfort solutions, the primary focus of the company has been the maintenance, repair and replacement of residential heating and cooling equipment, Martin Graeff (President of Allianz) is a second-generation contractor, Believes that do it right, stand by it, and customers will see the value. Additional Contact Names: Anderson & Red Bluff. Additional Phone Number - (530) 529-1267. Award winning.

"Great service every time. Our heater needed some serious cleaning after not having been maintained for several years and they got it sparkling. A valve was also broken and leaking gas and rather than leave us without heat halfway through winter they did the repair for free. Dan you're the man!"

April I on January 2023


"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021


Avatar for AppliancePartsPros.com

AppliancePartsPros.com

4.73(
287
)

AppliancePartsPros.com

4.73(
287
)
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025



Avatar for WALLNER PLUMBING HEATING & AC

WALLNER PLUMBING HEATING & AC

4.67(
69
)

WALLNER PLUMBING HEATING & AC

4.67(
69
)
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Since 1968, Wallner Plumbing Heating & Air has been dedicated to providing prompt and courteous service with an emphasis on customer satisfaction. The family owned and operated company is full of long-term employees, with many working there longer than other companies have been in business. Technicians are experienced, knowledgeable, and factory-trained, with the skill to work on all makes and models of plumbing and HVAC systems and fixtures. Call Wallner any time of day or night for emergency plumbing services. The offer a response time of 60 minutes in Redding, Anderson, and Red Bluff to make sure your issue is addressed as quickly as possible. Wallner also provides free estimates on new installations.

"The company was prompt, and fair with pricing. Will definitely use again in the future."

John S on June 2020

Since 1968, Wallner Plumbing Heating & Air has been dedicated to providing prompt and courteous service with an emphasis on customer satisfaction. The family owned and operated company is full of long-term employees, with many working there longer than other companies have been in business. Technicians are experienced, knowledgeable, and factory-trained, with the skill to work on all makes and models of plumbing and HVAC systems and fixtures. Call Wallner any time of day or night for emergency plumbing services. The offer a response time of 60 minutes in Redding, Anderson, and Red Bluff to make sure your issue is addressed as quickly as possible. Wallner also provides free estimates on new installations.

"The company was prompt, and fair with pricing. Will definitely use again in the future."

John S on June 2020


"Did Great job. Showed up on time and completed job in one day."

Brenda C on February 2018

A&R Heating & Air Conditioning has been a full service HVAC licensed contractor in Shasta County since 1973.

"Did Great job. Showed up on time and completed job in one day."

Brenda C on February 2018


Avatar for Appliance Zone

Appliance Zone

4.41(
41
)

Appliance Zone

4.41(
41
)
Customers say: Terrific value
17 years of experience

Appliancezone.com is a leading on-line retailer of appliance parts and accessories for do-it-yourself homeowners. Incorporated in 2008, it was started by CEO, Jim Allen and his wife Paula, who operated an appliance repair business for nearly fourteen years prior to starting the internet company Appliance Zone.

"This is the first online review I've ever written -- my experience with this company was that bad. Three aspects that deserve attention: 1) I placed an order and tried to cancel six minutes later. Turns out they don't accept cancellations. 2) I couldn't find a phone number, so I had to work the return/refund by email. The exchange was painful -- so unhelpful I felt like I was interacting with a bad chatbot. 3) I ended up eating shipping costs (expected) and got hit for a 50% restocking fee (unexpected) because I refused the package instead of paying to ship it back. Didn't matter that it went to the correct address, was clearly labeled, and had prior return authorization. So I ended up with a $21 refund on a $60 order, and a lesson learned about where not to buy appliance parts."

Tyson A on April 2020

Appliancezone.com is a leading on-line retailer of appliance parts and accessories for do-it-yourself homeowners. Incorporated in 2008, it was started by CEO, Jim Allen and his wife Paula, who operated an appliance repair business for nearly fourteen years prior to starting the internet company Appliance Zone.

"This is the first online review I've ever written -- my experience with this company was that bad. Three aspects that deserve attention: 1) I placed an order and tried to cancel six minutes later. Turns out they don't accept cancellations. 2) I couldn't find a phone number, so I had to work the return/refund by email. The exchange was painful -- so unhelpful I felt like I was interacting with a bad chatbot. 3) I ended up eating shipping costs (expected) and got hit for a 50% restocking fee (unexpected) because I refused the package instead of paying to ship it back. Didn't matter that it went to the correct address, was clearly labeled, and had prior return authorization. So I ended up with a $21 refund on a $60 order, and a lesson learned about where not to buy appliance parts."

Tyson A on April 2020

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Heating and Air Conditioning questions, answered by experts

Most HVAC companies recommend against setting your AC below 70 as it could freeze up the system and cause more problems. Regardless of how hot it is outside, there is generally a 20 degree difference between the outside and inside temperatures, so even if it’s 100 degrees outside, your AC will likely not be able to cool your home to 70 degrees.

There are many recognizable symptoms of AC compressor failure. They include loud banging noises, hot air being continually circulated in your home despite running the AC at full blast, uneven airflow and cooling, and electrical issues like constant surges due to the compressor working overtime. While some of these symptoms, like uneven cooling, can have other root causes, they are common indicators of compressor problems.

Aside from needing HVAC repair, there are times when you may need to replace your unit. HVAC replacement costs $5,000 to $12,500. Here are some telltale signs that your HVAC unit is going bad:

  • Your unit is 10 years or older.

  • Your home is very humid.

  • The unit keeps cycling without producing cool air.

  • You need to repair the unit frequently.

HVAC pros recommend that you replace your AC filter every one to three months to maintain optimal indoor air quality and ensure your HVAC system operates efficiently. However, factors such as filter type, household size, and environmental conditions may influence the frequency of replacement. Regular filter changes help prevent debris buildup, maintain airflow, and prolong the life span of your air conditioning unit.

No, you should not run an air conditioner with a Freon leak. If you think your AC unit is leaking refrigerant, shut it off immediately. When you keep using a leaky air conditioner, it could damage the unit and release more refrigerant. After turning off the AC, have an HVAC pro come take a look at the unit.

The Millville, 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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