Top 10 heating and cooling repair services in Diamond Bar, CA

Porch Pro Headshot Magnolia Heating and Cooling
Heating and Cooling Repair
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
Heating and Cooling Repair
Serves Diamond Bar, California
(645)
"I have been using this company for many years for my residence and business. They are always on time, professional and easy to deal with. Office personal very polite and accommodating. Technicians are very competent and skilled. Would highly recommend this company. "
"I have been using this company for many years for my residence and business. They are always on time, professional and easy to deal with. Office personal very polite and accommodating. Technicians are very competent and skilled. Would highly recommend this company. "
Porch Pro Headshot Guaranteed Quality Heating and Air
Heating and Cooling Repair
Serves Diamond Bar, California
(686)
We provide heating and air conditioning solutions at the best prices for all of Orange County. We are an Award Winning Amana / Goodman Dealer. We are also Goodman's #1 Orange County volume dealer. We provide AC Repair & AC Replacement and Furnace Repair & Furnace Replacement for all of Costa Mes...Read more about Guaranteed Quality Heating and Air
We provide heating and air conditioning solutions at the best prices for all of Orange County. We are an Award Winning Amana / Goodman Dealer. We are also Goodman's #1 Orange County volume dealer. We provide AC Repair & AC Replacement and Furnace Repair & Furnace Replacement for all of Costa Mes...Read more about Guaranteed Quality Heating and Air
Porch Pro Headshot McLay Services, Inc.
Heating and Cooling Repair
Serves Diamond Bar, California
(382)
Porch Pro Headshot Air Concepts
Heating and Cooling Repair
Serves Diamond Bar, California
(367)
Porch Pro Headshot CWP Heating & Air, Inc.
Heating and Cooling Repair
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 Sheldon's Heating And Air
Heating and Cooling Repair
Serves Diamond Bar, California
Sheldon's Heating & Air Conditioning, Inc. is the Riverside, CA heating and air conditioning company you can rely on when you need any heating or air conditioning installation, repair or maintenance services. We also offer exceptional indoor air quality products and services to help you breathe the ...Read more about Sheldon's Heating And Air
Sheldon's Heating & Air Conditioning, Inc. is the Riverside, CA heating and air conditioning company you can rely on when you need any heating or air conditioning installation, repair or maintenance services. We also offer exceptional indoor air quality products and services to help you breathe the ...Read more about Sheldon's Heating And Air
Porch Pro Headshot Air Duct Cleaning Placentia
Heating and Cooling Repair
Serves Diamond Bar, California
(40)
"I found out from my friend that this company does air duct cleaning and I couldn’t be happier! My carpets and bed sheets became dustier and I thought it was time to clean the air ducts. They came on schedule and got to work straight away. The dust is gone and I feel that my home can breathe again!"
"I found out from my friend that this company does air duct cleaning and I couldn’t be happier! My carpets and bed sheets became dustier and I thought it was time to clean the air ducts. They came on schedule and got to work straight away. The dust is gone and I feel that my home can breathe again!"
Porch Pro Headshot Fisher Heating & Air Conditioning Inc
Heating and Cooling Repair
Serves Diamond Bar, California
(23)
"They are professional and do an awesome job! We had a problem with a certain part making a weird noise and they can out several times to make sure it was taken care of and that we were happy with the end result. Out heating and air conditioning work perfectly. Thanks Fisher Air. "
"They are professional and do an awesome job! We had a problem with a certain part making a weird noise and they can out several times to make sure it was taken care of and that we were happy with the end result. Out heating and air conditioning work perfectly. Thanks Fisher Air. "
Porch Pro Headshot B and N Heating and Air
Heating and Cooling Repair
Serves Diamond Bar, California
(11)
"I have used B & N service and they were quick to respond and they also were fair with their estimates and diagnosis of the problems. I appreciate them not trying to sale me something I didn't need. Thumbs UP Brandon!!! I would definitely use them again."
"I have used B & N service and they were quick to respond and they also were fair with their estimates and diagnosis of the problems. I appreciate them not trying to sale me something I didn't need. Thumbs UP Brandon!!! I would definitely use them again."

Frequently asked questions about hvac repair technicians

There are many reasons your HVAC system may not be working, and be in need of repair. One very common root cause of HVAC failure is simply a lack of regular maintenance. HVAC pros recommend that your system be checked annually to keep it in top repair. If your AC unit of furnace is not performing up to standards, it is often best to an HVAC contractor assess your system to see what kind of repairs it may need. A pro will know that if your furnace is tripping the circuit breaker, it may be because of a dirty filter. The dirt could be blocking the air flow. But the issue could also be a duct leak or dirty coils.

A malfunctioning HVAC system could actually be hazardous. If your furnace is making strange noises, the motor may need to be replaced. Your HVAC system may have airflow issues or dirty burners that might be flammable. It’s always best to stick to a regular HVAC system maintenance schedule, and to consult an HVAC repair contractor at the first sign that your HVAC is not working.

Air conditioners are great for keeping your home comfortable in the warmer months. Having an AC unit installed brings a host of other benefits as well. However, air conditioners are subject to a host of common problems. One of the most common problems starts with a lack of regular HVAC maintenance. One common AC system issue is a gradual or sudden decrease in efficiency. The air conditioner may not be cooling your home well, and your home might feel unusually muggy. If HVAC maintenance has been neglected, the coils may have collected dirt and debris which clogs the coils. An air conditioner repair pro can remedy this situation, and check for any other problems with your air conditioner. Similarly, if your AC unit is leaking, a pro can troubleshoot the problem.

It makes sense to keep a regular HVAC system maintenance schedule. If you bring in a local AC professional, they can get to know your system and call out problems with your air conditioner before they become bigger issues down the road.

Your home’s heating and cooling system may be easy to take for granted as long as it is running smoothly. Your HVAC system keeps your home comfortable, it can save on energy bills, and it keeps the air in your home cleaner and healthier. Here’s the catch, your HVAC system requires regular maintenance to keep it in top repair. Investing in an annual inspection of your home’s heating, ventilation and air conditioning systems is relatively inexpensive compared to the benefits you’ll enjoy.

Regular maintenance helps prevent expensive breakdowns by troubleshooting the HVAC problem early and effectively. If you have your HVAC system inspected and maintained on a regular basis, your system will run more efficiently which can save you money on energy bills. Annual maintenance can extend the life of your HVAC system saving you money on costly replacements. Finally, most HVAC companies require proof of regular maintenance when a repair is submitted under warranty. It pays to keep your heating, air conditioning, and ventilation systems covered on a warranty. An HVAC pro can help you with routine HVAC maintenance as well as big and small repairs.

There are a host of common HVAC problems that can lead to annoying, expensive, or even dangerous situations in your home. Carbon monoxide leaks are one potentially dangerous HVAC problem. These can be caused by a cracked or failed heat exchanger. An HVAC repair pro can test for the presence of carbon monoxide in your home and install a carbon monoxide detector in your home. Another potentially dangerous problem that can arise with your HVAC system are pilot light or ignition problems. A dirty pilot, or burners can cause short cycling, a pilot outage, or furnace lockout. In any case it’s best to call an HVAC repair professional. HVAC problems that involve natural gas or high voltage which must be handled by a trained technician.

If your furnace or air conditioner is suddenly making odd noises, emitting strange odors, or seems to be operating less efficiently than when it was installed, it’s time to call an HVAC repair technician. A trained pro will have the skills, know-how, and tools to safely repair any problem your HVAC system develops over time. Keep your home safe, comfortable and healthy by developing a regular maintenance and repair relationship with an HVAC pro near you.

There are a few simple troubleshooting steps homeowners can take if their HVAC system is not working. After taking these steps, it makes sense to hire an HVAC repair technician. Many problems that come up with furnaces, air conditioning and ventilation systems can be annoying, expensive, and even dangerous. A trained tech will have the skills, tools and know how to tackle any more complex troubleshooting your HVAC system breakdown requires. Homeowners can make sure the furnace or air conditioner is properly plugged in. They can make sure the air space around a furnace, air conditioner or duct system is not obstructed by furniture or plants. Homeowners may even be able to check some filters, and change and clean them. Beyond that, bring in a pro.

An HVAC repair professional will know how to safely work with potentially dangerous natural gas and high voltage electrical systems. If your air conditioner, high-efficiency furnace or water heater is leaking, a trained HVAC repair tech can troubleshoot the problem and fix it efficiently. HVAC leaks can cause costly water damage if they are not taken care of quickly and efficiently. Trust your HVAC troubleshooting to an HVAC professional.

If your air conditioner is running but it is not cooling house, there could be a number of reasons. The simplest troubleshooting step for your AC problem is to check whether your thermostat is set to “on” or “auto.” If your AC thermostat is set to “on” the system will run the fan continuously whether or not the air is being cooled. Make sure the air conditioner is set to “auto.” You can also make sure the filters in the AC unit are clean.If the filter is dirty, simply replace it.

However, it makes sense to bring in an HVAC repair pro to address issues that are more complex. If your AC unit can’t cool your home on hot days, but cools the air just fine on cooler ones, your air conditioner may have low refrigerant. This means you may have a refrigerant leak. The signs of a leak are a bubbling or hissing noise, ice build up, If you notice these signs, turn the AC unit off and call a pro. This issue can damage the compressor which would mean having to replace the air conditioner’s outside unit. Call a pro to troubleshoot your AC issue to save money and headaches down the road.

Recent reviews for Diamond Bar HVAC repair services

405865

This company need to be canceled! I tried calling and they will not let you through to manament and then the lady on the phone threatened me because I wasn't being nice enough! She wouldn't hand me over to a manager or the owner, just threatened me and h...

- Mike Pokemon
405864

This company need to be canceled! I tried calling and they will not let you through to manament and then the lady on the phone threatened me because I wasn't being nice enough! She wouldn't hand me over to a manager or the owner, just threatened me and h...

- Mike Pokemon
54909

Amazing service!!! Brandon was honest, reliable, and got the job done. We even called him out for 2 more jobs. I highly recommend this company

- Courtney Belk James Martinez
54906

Great Company!! Reliable, honest and work completed ON TIME. They show up when they say they will be there, are very respectful and clean up when they leave, We have used them for installs on our rehab properties and repairs for our rental properti...

- Sherry Wysocki
54927

We needed and Air Condition condenser replaced ( stolen), B and N. was there to give me an estimate and then again to install when we were ready. All with in 24 hr notice. Brandon and Nick were very professional, fast and polite, and reasonaable priced...

- VONDA FIRESTONE
55170

Had 2 units installed plus remote thermostats last summer. They were Professional and polite, the work was outstanding, reasonable and done fast. I have referred them to friends and family.

- Karen Mellon
4614

I wanted to make sure that the HVAC unit lasts a long time. Fortunately, I hired the best HVAC maintenance specialists to clean the ducts, filter the unit, and fix any damages that were necessary in my home. I can definitely say that they are the best in ...

- Gary Lima
63361

Changing the HVAC air filters didn’t help so I called this air duct cleaning company. The guy worked with precision and removed all the dust and dirt from the surfaces. Now my HVAC system uses much less energy.

- Thomas Marsh
80655

They are the BEST!

- Brenda Smith
111814

Great attitude and punctual. Thanks John!

- Travis Mcgregor

Everything You Need to Know About Diamond Bar HVAC Repair Technicians

How do I know I am getting a fair price for my Heating and Cooling Repair in Diamond Bar?

Every Heating and Cooling Repair project is different, and the price will differ depending on the specifications of your project. However, there are ways to help make sure you are getting a fair price quoted for your Diamond Bar Heating and Cooling Repair job:

  • Talk to multiple hvac repair services and ask for quotes to compare. We have over 50 Heating and Cooling Repair companies in Diamond Bar for you to choose from.
  • Read the ratings and reviews for the hvac repair services you’re interested in to see what other customers have said about the pricing of their own projects. Find the hvac repair service that you trust to give you the best service at the lowest price.

How many heating and cooling repair companies are there in Diamond Bar?

We’ve found 50 companies in Diamond Bar that can help you tackle your heating and cooling repair project.

  • 19 of them have an A or A+ rating from Better Business Bureau.

Who should I hire for Heating and Cooling Repair in Diamond Bar?

First, you need to know the specific type(s) of professionals you may need to complete your heating and cooling repair project in Diamond Bar properly, on time, and on budget. Do you need a general hvac repair service, or a specialist that can handle specific types of heating and cooling repair?

Every heating and cooling repair project is going to have different requirements. For example, your heating and cooling repair project may require the work of the following types of service providers:

  • Boiler Repair & Maintenance:
    • Service Description: The repair and maintenance of a boiler heating system and related components; including piping, radiators, connection to fuel or power source, and pressurizing the system
    • 50 boiler repair and maintenance companies available in Diamond Bar
  • Central Air Conditioning Repair Services:
    • Service Description: The repair of a central air conditioner system; including the components of the unit, ducting or venting, and the connection to fuel or power source.
    • 50 central air conditioning repair companies available in Diamond Bar
  • Furnace Repair Services:
    • Service Description: The repair of a furnace or other central heating unit; including the components of the system, venting or ducting, and the connection to fuel or power source.
    • 50 furnace repair companies available in Diamond Bar

Be sure to do your research so you can to complete your heating and cooling repair project the way you want it done, on time, and on budget. Start building the right team of heating and cooling repair professionals in Diamond Bar and good luck!

All HVAC Repair Technicians in Diamond Bar, CA

Porch Pro Headshot 20th Century Air Inc.
Heating and Cooling Repair
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
Heating and Cooling Repair
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 Supreme Cooling Heating and Air Conditioning
Heating and Cooling Repair
Serves Diamond Bar, California
(4)
Supreme Cooling Heating and Air Conditioning is an HVAC specialist that provides gas leak detection, air conditioning installation, and water heater services as well as other services. They are located in Moreno Valley. The state of California has licensed Supreme Cooling Heating and Air Conditionin...Read more about Supreme Cooling Heating and Air Conditioning
Supreme Cooling Heating and Air Conditioning is an HVAC specialist that provides gas leak detection, air conditioning installation, and water heater services as well as other services. They are located in Moreno Valley. The state of California has licensed Supreme Cooling Heating and Air Conditionin...Read more about Supreme Cooling Heating and Air Conditioning
Porch Pro Headshot Crestline Refrigeration
Heating and Cooling Repair
Serves Diamond Bar, California
(3)
Crestline Refrigeration is your premier RESIDENTIAL air conditioning & heating service provider in Southern California. We also provide Refrigeration, air conditioning, heating and ventilation service for COMMERCIAL and INDUSTRIAL customers. We offer PROFESSIONAL AFFORDABLE installation, repair an...Read more about Crestline Refrigeration
Crestline Refrigeration is your premier RESIDENTIAL air conditioning & heating service provider in Southern California. We also provide Refrigeration, air conditioning, heating and ventilation service for COMMERCIAL and INDUSTRIAL customers. We offer PROFESSIONAL AFFORDABLE installation, repair an...Read more about Crestline Refrigeration
Porch Pro Headshot Hart Heating & Cooling
Heating and Cooling Repair
Serves Diamond Bar, California
(90)
Porch Pro Headshot Same Day Services Inc
Heating and Cooling Repair
Serves Diamond Bar, California
(1)
Same Day Services is a general contractor based out of Riverside. They provide design build services, bathroom remodeling, exterior remodeling and more. Same Day Services is accredited by the United States Environmental Protection Agency. They are also accredited by the Better Business Bureau.
Same Day Services is a general contractor based out of Riverside. They provide design build services, bathroom remodeling, exterior remodeling and more. Same Day Services is accredited by the United States Environmental Protection Agency. They are also accredited by the Better Business Bureau.
Porch Pro Headshot Total Care Heating & Air Inc.
Heating and Cooling Repair
Serves Diamond Bar, California
(53)
Porch Pro Headshot Engineered Comfort
Heating and Cooling Repair
Serves Diamond Bar, California
(8)
Porch Pro Headshot Xpress Heating & Air
Heating and Cooling Repair
Serves Diamond Bar, California
We pride our company on reliability, great communication, integrity and quality work. We are experts in our HVAC work and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.
We pride our company on reliability, great communication, integrity and quality work. We are experts in our HVAC work and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.
Porch Pro Headshot Mr Appliance In Rancho Cucamanga
Heating and Cooling Repair
Serves Diamond Bar, California
Mr. Appliance is a family owned and operated company! We specialize in residential and commercial appliance repair. All of our techs are back ground checked and drug screened to make sure we know who is coming in to your home. We wouldn't have someone in your home who we wouldn't personally have at...Read more about Mr Appliance In Rancho Cucamanga
Mr. Appliance is a family owned and operated company! We specialize in residential and commercial appliance repair. All of our techs are back ground checked and drug screened to make sure we know who is coming in to your home. We wouldn't have someone in your home who we wouldn't personally have at...Read more about Mr Appliance In Rancho Cucamanga
Porch Pro Headshot Ameri Air Conditioning & HTG
Heating and Cooling Repair
Serves Diamond Bar, California
Ameri Air Conditioning and Heating mission is to provide customers great service, by provide customer satisfaction at the highest level. On time appointment, quality rates, quality workmanship.
Ameri Air Conditioning and Heating mission is to provide customers great service, by provide customer satisfaction at the highest level. On time appointment, quality rates, quality workmanship.
Porch Pro Headshot HASCO Heating Airconditioning Service Company  Inc.
Heating and Cooling Repair
Serves Diamond Bar, California
HASCO Heating Air conditioning Service COmpany was established in 1983 by Daryl Salmon and Sal Trujillo Sr. with service in mind. With over 30 years in the business, HASCO is still serving the Inland Empire and has proven that service is the key to success. We are a local company located in Riversi...Read more about HASCO Heating Airconditioning Service Company Inc.
HASCO Heating Air conditioning Service COmpany was established in 1983 by Daryl Salmon and Sal Trujillo Sr. with service in mind. With over 30 years in the business, HASCO is still serving the Inland Empire and has proven that service is the key to success. We are a local company located in Riversi...Read more about HASCO Heating Airconditioning Service Company Inc.
Porch Pro Headshot S & P AIR CONDITIONING AND HEATING
Heating and Cooling Repair
Serves Diamond Bar, California
Hi, I am calling from S& P air conditioning . I know you have some problems with the air conditioner or refrigeration . Maybe we can help you with that issue , thank you very much.
Hi, I am calling from S& P air conditioning . I know you have some problems with the air conditioner or refrigeration . Maybe we can help you with that issue , thank you very much.
Porch Pro Headshot Aero Fresh Industries  Inc.
Heating and Cooling Repair
Serves Diamond Bar, California
Providing quality HVAC services since 1987.
Providing quality HVAC services since 1987.