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Top 10 heating and cooling services in Diamond Bar, CA

Porch Pro Headshot Magnolia Heating and Cooling

Magnolia Heating and Cooling

Heating and Cooling
Serves Diamond Bar, California
(1,723)
We are a family owned and operated business serving the Inland Empire area since 1951. Big enough to offer competitive pricing and services, small enough to put customer satisfaction as our No. 1 priority. NO FALSE PROMISES. We're just a neighborhood business asking for the opportunity to show the...Read more about Magnolia Heating and Cooling
We are a family owned and operated business serving the Inland Empire area since 1951. Big enough to offer competitive pricing and services, small enough to put customer satisfaction as our No. 1 priority. NO FALSE PROMISES. We're just a neighborhood business asking for the opportunity to show the...Read more about Magnolia Heating and Cooling
Porch Pro Headshot Relaxed Heating and Air Inc

Relaxed Heating and Air Inc

Heating and Cooling
Serves Diamond Bar, California
(645)
Relaxed Heating and Air Inc. offers excellent service when it comes to Heaters, Air Conditioners, and Appliances. Our technicians have been professionally trained and are experts in the field. We stand firm behind our work which is why we have become the most reliable HVAC company in the greater Lo...Read more about Relaxed Heating and Air Inc
Relaxed Heating and Air Inc. offers excellent service when it comes to Heaters, Air Conditioners, and Appliances. Our technicians have been professionally trained and are experts in the field. We stand firm behind our work which is why we have become the most reliable HVAC company in the greater Lo...Read more about Relaxed Heating and Air Inc
Porch Pro Headshot Guaranteed Quality Heating and Air

Guaranteed Quality Heating and Air

Heating and Cooling
Serves Diamond Bar, California
(686)
"Our AC was giving us some problems and we checked on Google. We found out Guaranteed Quality Heating and Air through Google search and call them. The person who answered the phone was James and he gave us various options we had. Next day, Steve came to check the AC and after thorough check, h...Read more about Guaranteed Quality Heating and Air
"Our AC was giving us some problems and we checked on Google. We found out Guaranteed Quality Heating and Air through Google search and call them. The person who answered the phone was James and he gave us various options we had. Next day, Steve came to check the AC and after thorough check, h...Read more about Guaranteed Quality Heating and Air
Porch Pro Headshot Champion Aire Heating & Air Conditioning

Champion Aire Heating & Air Conditioning

Heating and Cooling
Serves Diamond Bar, California
(218)
Champion Aire has been a trusted and a professional service HVAC contractor in the HVAC industry ,Experience and expertise both working Commercial and Residential for all air conditioning and heating repairs, installations, maintenance, indoor air quality, duct work, ventilation and filtration need...Read more about Champion Aire Heating & Air Conditioning
Champion Aire has been a trusted and a professional service HVAC contractor in the HVAC industry ,Experience and expertise both working Commercial and Residential for all air conditioning and heating repairs, installations, maintenance, indoor air quality, duct work, ventilation and filtration need...Read more about Champion Aire Heating & Air Conditioning
Porch Pro Headshot Vader Air Conditioning & Heating

Vader Air Conditioning & Heating

Heating and Cooling
Serves Diamond Bar, California
(124)
"Mr. Walker was very knowledgeable, professional, honest and enthusiastic about his work. He explained every step of the installation process and followed up after the work was completed to ensure everything was working properly. He also provides a warranty on his installation; therefore, I would ...Read more about Vader Air Conditioning & Heating
"Mr. Walker was very knowledgeable, professional, honest and enthusiastic about his work. He explained every step of the installation process and followed up after the work was completed to ensure everything was working properly. He also provides a warranty on his installation; therefore, I would ...Read more about Vader Air Conditioning & Heating
Porch Pro Headshot CWP Heating & Air, Inc.

CWP Heating & Air, Inc.

Heating and Cooling
Serves Diamond Bar, California
(159)
C.W.P. Heating and Air's number one goal is to supply local residents and businesses with the highest quality HVAC service available. Whether it be a simple furnace repair, or a large A/C installation, our staff and technicians are trained to meet and exceed your expectations. Because we value custo...Read more about CWP Heating & Air, Inc.
C.W.P. Heating and Air's number one goal is to supply local residents and businesses with the highest quality HVAC service available. Whether it be a simple furnace repair, or a large A/C installation, our staff and technicians are trained to meet and exceed your expectations. Because we value custo...Read more about CWP Heating & Air, Inc.
Porch Pro Headshot California Cool Breeze

California Cool Breeze

Heating and Cooling
Serves Diamond Bar, California
(55)
"I live in illinois but own a rental home in Moreno valley. Chris has handled my Ac issues for several years. I love that I have someone I trust. Especially when the repairs and work he is doing, and what I'm praying for, aren't things I can just go out and see. Honest guy, fair prices, quality wor...Read more about California Cool Breeze
"I live in illinois but own a rental home in Moreno valley. Chris has handled my Ac issues for several years. I love that I have someone I trust. Especially when the repairs and work he is doing, and what I'm praying for, aren't things I can just go out and see. Honest guy, fair prices, quality wor...Read more about California Cool Breeze
Porch Pro Headshot 20th Century Air Inc.

20th Century Air Inc.

Heating and Cooling
Serves Diamond Bar, California
(16)
20th Century Air, Inc. - Heating and Air Conditioning in Orange County "21st Century Products with 20th Century Service" We are a family owned and operated company specializing in heating and air conditioning installation, replacements, maintenance, and repair in Orange, LA, and Riverside Counties...Read more about 20th Century Air Inc.
20th Century Air, Inc. - Heating and Air Conditioning in Orange County "21st Century Products with 20th Century Service" We are a family owned and operated company specializing in heating and air conditioning installation, replacements, maintenance, and repair in Orange, LA, and Riverside Counties...Read more about 20th Century Air Inc.
Porch Pro Headshot Extreme Cooling and Heating

Extreme Cooling and Heating

Heating and Cooling
Serves Diamond Bar, California
(123)
We are a family operating business with 20+ years of expertise in repair and installation. Our main goal is to provide 100% customer satisfaction.
We are a family operating business with 20+ years of expertise in repair and installation. Our main goal is to provide 100% customer satisfaction.
Porch Pro Headshot All Seasons Temperature

All Seasons Temperature

Heating and Cooling
Serves Diamond Bar, California
(17)
Free Estimate with or without repair (means no charge to troubleshoot your Air Conditioning and Heating equipment) .----------------------------------------------------------- A lot of Companies out there will try to replace your whole Heating and Air Conditioning system when not needed rather than...Read more about All Seasons Temperature
Free Estimate with or without repair (means no charge to troubleshoot your Air Conditioning and Heating equipment) .----------------------------------------------------------- A lot of Companies out there will try to replace your whole Heating and Air Conditioning system when not needed rather than...Read more about All Seasons Temperature

Top questions to ask before hiring a heating and cooling system specialist

A professional will assist you with scope and estimates, but having a clear idea of what you want to accomplish will help communication.

Do you want professionals to do everything, or do you have the time and skill to do some of the work?

Many projects such as have a DIY component, such as painting or cleanup.

First and foremost, protect yourself and make sure the contractor and any sub-contractors are licensed, bonded and insured.

Recent reviews for Diamond Bar heating and cooling system services

39881

On Thursday I requested assistance with my Water Heater. The guy came out and looked at my pilot light and said it was out. He charged me $90 to assess the situation and then said he re-lit the pilot light and all I needed to do was wait 30 minutes to a...

- Michael Carpenter
84460

Was very pleased with the work being done.Technician was very courteous and helpful.I will use All Seasons Temperature again.Thank you for your great service.

- Lucy Martinez
84458

All Seasons Temperature conducted business, in a very honest and professional way. The rates were fair prices and we're often way cheaper than other companies had quoted me for the same job. All season's temp, completed their work in a timely manner, and ...

- Sam Pham
22572

Chris did a great job for me. He showed up looking professional, knew what he was talking about and his work was excellent. Would recommend him to anyone!

- Mike Stickley
23674

Experience counts and when it comes to experience Chris cant be beat. Add to that the best customer service out there you just cant go wrong. Had Cool Breeze install my system new from the ground up. It has performed flawless and perfectly matched to my n...

- Robert Herkelrath
22746

I have done a lot of work with this company, they are among the best. Chris is very professional and always willing to answer any questions you may have.

- Ricky Felix
22976

I'm very please from his work.. I perches old house and I asked from Christofer to give me an estimate for a new system and he explained to me about the high energy efficiency system. We're very happy from the low electric bill and the fair price.

- Gil Mizrahi
22575

Chris is a true professional and extremely talented in his trade.

- Michael Guinn
90575

Beware Beware Beware this is a rip off off company. The technician tried to rep me off. he wanted to charge $ 600 for an a/c system recharge with 4 pound of Freon. he quoted me a price of $ 125 per pound of Freon, he said they have a minimum Freon amount...

- SEAN AddA
518141

Great Company to work with. and I would absolutely recommend to any homeowner or business.

- Lindsay Wright
83274

Great company with sincere employees. Thank you Tony and Jannette.

- Dave W
33037

Horrible customer service! Unreliable, didn't call when they couldn't come..... Not reliable at all!!

- Barbara Winchel

All heating and cooling system services in Diamond Bar, CA

Porch Pro Headshot Supreme Cooling Heating and Air Conditioning

Supreme Cooling Heating and Air Conditioning

Heating and Cooling
Serves Diamond Bar, California
(4)
"They were phenomenal. Supreme came through and figured out what the problem and repaired it when 4 ither companjes couldnt do the job. And they showed up in a timely matter with a 30 min prior to show up courtesy call.i would highly recommend supreme to all my family and friends."
"They were phenomenal. Supreme came through and figured out what the problem and repaired it when 4 ither companjes couldnt do the job. And they showed up in a timely matter with a 30 min prior to show up courtesy call.i would highly recommend supreme to all my family and friends."
Porch Pro Headshot Novell Custom Heating & Air Conditioning Company

Novell Custom Heating & Air Conditioning Company

Heating and Cooling
Serves Diamond Bar, California
(22)
We offer Same Day Heating & Air Conditioning Repair, Service, and Installation. If your current system is in need of repair, maintenance, or replacement, our friendly home comfort technicians are available to help you, regardless of the brand name or model. For your convenience we offer two-hour app...Read more about Novell Custom Heating & Air Conditioning Company
We offer Same Day Heating & Air Conditioning Repair, Service, and Installation. If your current system is in need of repair, maintenance, or replacement, our friendly home comfort technicians are available to help you, regardless of the brand name or model. For your convenience we offer two-hour app...Read more about Novell Custom Heating & Air Conditioning Company
Porch Pro Headshot Hart Heating & Cooling

Hart Heating & Cooling

Heating and Cooling
Serves Diamond Bar, California
(90)
Porch Pro Headshot Engineered Comfort

Engineered Comfort

Heating and Cooling
Serves Diamond Bar, California
(8)
Porch Pro Headshot Walton's Heating and Air Conditioning

Walton's Heating and Air Conditioning

Heating and Cooling
Serves Diamond Bar, California
Welcome to the Walton's Heating and Air About us Page! Why choose Walton's for your HVAC Needs? We have been an honest and reliable HVAC contractor in Corona, Ca since 1985 We have been licensed by the California Sate Contractors Board since 1985 We are Bonded and provide Worker's compensation and...Read more about Walton's Heating and Air Conditioning
Welcome to the Walton's Heating and Air About us Page! Why choose Walton's for your HVAC Needs? We have been an honest and reliable HVAC contractor in Corona, Ca since 1985 We have been licensed by the California Sate Contractors Board since 1985 We are Bonded and provide Worker's compensation and...Read more about Walton's Heating and Air Conditioning
Porch Pro Headshot Calwest Controls Inc

Calwest Controls Inc

Heating and Cooling
Serves Diamond Bar, California
CalWest Controls is a leading provider of advanced building systems for a wide variety of industries and buildings. We specialize in design, installation and service of energy managerment control systems for HVAC in commercial buildings, colleges, schools, retail, government buildings, hotels, hospi...Read more about Calwest Controls Inc
CalWest Controls is a leading provider of advanced building systems for a wide variety of industries and buildings. We specialize in design, installation and service of energy managerment control systems for HVAC in commercial buildings, colleges, schools, retail, government buildings, hotels, hospi...Read more about Calwest Controls Inc
Porch Pro Headshot Apex Wine Cellars & Saunas

Apex Wine Cellars & Saunas

Heating and Cooling
Serves Diamond Bar, California
Apex Wine Cellars and Saunas was founded on the principles of quality products and strong customer service. Apex strives to provide on-site consulting and products using only the finest workmanship and materials. Apex's headquarters and main manufacturing facility are located in Rancho Dominguez,...Read more about Apex Wine Cellars & Saunas
Apex Wine Cellars and Saunas was founded on the principles of quality products and strong customer service. Apex strives to provide on-site consulting and products using only the finest workmanship and materials. Apex's headquarters and main manufacturing facility are located in Rancho Dominguez,...Read more about Apex Wine Cellars & Saunas
Porch Pro Headshot ABC Heating & Air

ABC Heating & Air

Heating and Cooling
Serves Diamond Bar, California
(48)
Porch Pro Headshot MSO Enterprises Inc

MSO Enterprises Inc

Heating and Cooling
Serves Diamond Bar, California
We are your full-service commercial heating, Ventilation & Air conditioning company serving in Los Angeles & Southern California areas for over 25 years.
We are your full-service commercial heating, Ventilation & Air conditioning company serving in Los Angeles & Southern California areas for over 25 years.
Porch Pro Headshot DBS MECHANICAL INC.

DBS MECHANICAL INC.

Heating and Cooling
Serves Diamond Bar, California
Hi this is david smith owner of DBS mechanical inc. We specialize in all types of heating and air conditioning systems. From service and re-pair to brand new a/c units. We are a certified HERO contractor, if you don't no much about hero I would love the chance to explain it to you. Here is the link ...Read more about DBS MECHANICAL INC.
Hi this is david smith owner of DBS mechanical inc. We specialize in all types of heating and air conditioning systems. From service and re-pair to brand new a/c units. We are a certified HERO contractor, if you don't no much about hero I would love the chance to explain it to you. Here is the link ...Read more about DBS MECHANICAL INC.
Porch Pro Headshot Power Saver Systems Air Conditioning & Heating

Power Saver Systems Air Conditioning & Heating

Heating and Cooling
Serves Diamond Bar, California
(6)
Porch Pro Headshot AirPros Heating, Air, and Refrigeration

AirPros Heating, Air, and Refrigeration

Heating and Cooling
Serves Diamond Bar, California
Porch Pro Headshot Aero Fresh Industries Inc.

Aero Fresh Industries Inc.

Heating and Cooling
Serves Diamond Bar, California
Providing quality HVAC services since 1987.
Providing quality HVAC services since 1987.
Porch Pro Headshot Tony's Heating & AC Servic

Tony's Heating & AC Servic

Heating and Cooling
Serves Diamond Bar, California