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Find Central a/c installers in Diamond Bar

Avatar for GlobalTech Inc.

GlobalTech Inc.

26400 La Alameda Ste 207
5.00(
8
)
Approved Pro

GlobalTech Inc.

26400 La Alameda Ste 207
5.00(
8
)
Approved Pro
Customers say: Quick response
14 local quotes requested
5 years of experience

15 years of experience. We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Benjamin and his entire crew were the best! From the start I was provided with personal, thorough and professional inspection of my HVAC unit. When I decided that I wanted to do an entire replacement of my system, Benjamin provided multiple options to fit my needs. He always responded to my questions and their crew showed up on time each day they were scheduled to work. My project was tough as I live in an older townhome, but Benjamin and his team worked hard to make sure everything was done right. He truly cares about his clients, and the quality of work that he does. If you need any type of work done on your AC or HVAC unit - this is your guy! "

Dee S on July 2025

15 years of experience. We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

"Benjamin and his entire crew were the best! From the start I was provided with personal, thorough and professional inspection of my HVAC unit. When I decided that I wanted to do an entire replacement of my system, Benjamin provided multiple options to fit my needs. He always responded to my questions and their crew showed up on time each day they were scheduled to work. My project was tough as I live in an older townhome, but Benjamin and his team worked hard to make sure everything was done right. He truly cares about his clients, and the quality of work that he does. If you need any type of work done on your AC or HVAC unit - this is your guy! "

Dee S on July 2025


Avatar for Air Innovations

Air Innovations

414 Sievers Ave
4.50(
1
)
Approved Pro

Air Innovations

414 Sievers Ave
4.50(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

We are 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.

"Our AC broke down during the hottest week of the year. We decided to replace it proactively as it was old. Tony and his crew took care of everything next day. Highly recommend."

Tim K on September 2022

We are 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.

"Our AC broke down during the hottest week of the year. We decided to replace it proactively as it was old. Tony and his crew took care of everything next day. Highly recommend."

Tim K on September 2022


Avatar for All Plumbing & Air Solutions

All Plumbing & Air Solutions

PO Box 7119
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

All Plumbing & Air Solutions

PO Box 7119
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2 years of experience
Free onsite estimate

All Plumbing Solutions 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.

All Plumbing Solutions 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.


Avatar for RT Olson Plumbing, Heating and Air Conditioning, LLC

RT Olson Plumbing, Heating and Air Conditioning, LLC

9064 Pulsar Ct Suite I
4.69(
162
)
Approved Pro

RT Olson Plumbing, Heating and Air Conditioning, LLC

9064 Pulsar Ct Suite I
4.69(
162
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
35 years of experience

RT Olson Plumbing, Heating and Air Conditioning is a Family Owned company out of Corona and Riverside CA with OVER 500 FIVE Star Online Customer Reviews! We specialize in Residential Service and Repair which includes Heating and AC repair. Heating and AC installation, Indoor air quality, Duct repair and replacement, Drain Cleaning, Slab Leak Detection, Whole Home Water Treatment Systems and anything else plumbing or HVAC related. We also specialize in Water Damage Claims, working with and billing your insurance directly for Leak Detections and plumbing repairs along with water damage. We are a one stop shop for all you plumbing needs and offer Free Estimates and flat rate pricing. We also have payment plans for any plumbing job. Don't hesitate to call us TODAY We know what causes water damage and flooding so be proactive and have your home evaluated today! Save thousands on future plumbing or heating and AC problems that could have been avoided with routine maintenance.

"If I can give this plumbing company zero stars I would. I had a slab leak, and this company came out for leak detection. I was told that I have two leaks and they cut two lines. They were charging almost 65000 for rerouting two lines. My insurance company also brought their own plumbers and did their leak detection and they found only one leak. The adjuster called RT Olson a fraud company and he almost declined my claim. The insurance refused to fix the two cut lines. They only covered one line and I had to pay for the other line out of pocket. I asked RT Olson to fix the other line that he cut and was not leaking but he refuse to take responsibility. Then he send me an invoice for the leak detection and threatens me to take it to collection and add extra fees. This company is a fraud."

Masa S on December 2022

RT Olson Plumbing, Heating and Air Conditioning is a Family Owned company out of Corona and Riverside CA with OVER 500 FIVE Star Online Customer Reviews! We specialize in Residential Service and Repair which includes Heating and AC repair. Heating and AC installation, Indoor air quality, Duct repair and replacement, Drain Cleaning, Slab Leak Detection, Whole Home Water Treatment Systems and anything else plumbing or HVAC related. We also specialize in Water Damage Claims, working with and billing your insurance directly for Leak Detections and plumbing repairs along with water damage. We are a one stop shop for all you plumbing needs and offer Free Estimates and flat rate pricing. We also have payment plans for any plumbing job. Don't hesitate to call us TODAY We know what causes water damage and flooding so be proactive and have your home evaluated today! Save thousands on future plumbing or heating and AC problems that could have been avoided with routine maintenance.

"If I can give this plumbing company zero stars I would. I had a slab leak, and this company came out for leak detection. I was told that I have two leaks and they cut two lines. They were charging almost 65000 for rerouting two lines. My insurance company also brought their own plumbers and did their leak detection and they found only one leak. The adjuster called RT Olson a fraud company and he almost declined my claim. The insurance refused to fix the two cut lines. They only covered one line and I had to pay for the other line out of pocket. I asked RT Olson to fix the other line that he cut and was not leaking but he refuse to take responsibility. Then he send me an invoice for the leak detection and threatens me to take it to collection and add extra fees. This company is a fraud."

Masa S on December 2022


Avatar for SoCal Climate Control - LA

SoCal Climate Control - LA

19201 Parthenia Street
4.44(
347
)
Approved Pro

SoCal Climate Control - LA

19201 Parthenia Street
4.44(
347
)
Approved Pro
Customers say: True professional
1034 local quotes requested
7 years of experience

With over 30 years of combined experience in the HVAC industry, SoCal Climate Control & Mechanical, Inc. is your industry expert in Southern California. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"David Parks Senior HVAC Technician was very knowledgeable and listened to my needs. Susie in the office was polite and a joy to speak to. The crew that installed the ductwork worked efficiently and cleaned up afterwards. SoCal Climate Control did everything they promised at a reasonable price. I would recommend them to my neighbors and family members."

Greg V on October 2024

With over 30 years of combined experience in the HVAC industry, SoCal Climate Control & Mechanical, Inc. is your industry expert in Southern California. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

"David Parks Senior HVAC Technician was very knowledgeable and listened to my needs. Susie in the office was polite and a joy to speak to. The crew that installed the ductwork worked efficiently and cleaned up afterwards. SoCal Climate Control did everything they promised at a reasonable price. I would recommend them to my neighbors and family members."

Greg V on October 2024


Avatar for HD MECHANICAL INC

HD MECHANICAL INC

7445 Mohawk Circle
5.00(
20
)
Approved Pro

HD MECHANICAL INC

7445 Mohawk Circle
5.00(
20
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
281 local quotes requested

We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.

"Great! The problem was solved quickly, and the A/C is working well again."

Eleonore G on July 2025

We are small family operated company that has been in the HVAC industry for over 15years . We believe in honesty and good reliable timely service. As a licensed and certified company, we believe strongly in resolving any issues without up selling any unnecessary products and services. We treat every customer as if they are part of our family . CALL HD MECHANICAL TODAY for your free in home or business estimate.

"Great! The problem was solved quickly, and the A/C is working well again."

Eleonore G on July 2025


Avatar for Canyon City Air

Canyon City Air

615 Los Cerritos Rd
5.00(
12
)
Approved Pro

Canyon City Air

615 Los Cerritos Rd
5.00(
12
)
Approved Pro
Customers say: Quick response
73 local quotes requested
2 years of experience

Canyon City Air 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.

"Great customer service. Very professional."

Ken N on September 2025

Canyon City Air 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.

"Great customer service. Very professional."

Ken N on September 2025


Avatar for THE AC DOCTOR HEATING & AIR CONDITIONING

THE AC DOCTOR HEATING & AIR CONDITIONING

1761 Mallory St
5.00(
52
)
Approved Pro

THE AC DOCTOR HEATING & AIR CONDITIONING

1761 Mallory St
5.00(
52
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Over 30 years of experience in HVAC

"Very professional and honest. Job well done!"

Rowena C on October 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Over 30 years of experience in HVAC

"Very professional and honest. Job well done!"

Rowena C on October 2025


Avatar for Four Seasons Heating and Air LLC

Four Seasons Heating and Air LLC

3111 East La Palma Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Four Seasons Heating and Air LLC

3111 East La Palma Ave
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
15 local quotes requested
2 years of experience

We are 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.

We are 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.


Avatar for Air-Tech Air Conditioning & Heating Inc

Air-Tech Air Conditioning & Heating Inc

204 S. Rosemead Blvd.
4.83(
173
)
Approved Pro

Air-Tech Air Conditioning & Heating Inc

204 S. Rosemead Blvd.
4.83(
173
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
136 local quotes requested

If you're looking for comfort you can count on, you've found the right place! Whether you need service-and need it fast-or you're looking to replace or invest in new equipment for your home, AirTech Air Conditioning & Heating can help. Ask around... our name is well known and respected in because we care about impressing you so much that you'll want to call us next time and every time. Award-winning Air Conditioning & Heating Company including the Angie's List Super Service Award. Free estimates on replacement systems, new installations and duct cleaning/air purification. Servicing all major brands, makes and models for central and ductless/mini-split systems. Financing is available. AirTech is a participating HERO contractor.

"Air Tech was great. I would HIGHLY recommend. I initially had 2 other companies besides Air Tech come out for a replacement estimate. Price wise Air Tech was right in the middle but were doing a lot more than the other 2 quotes I got. For example they were changing the copper refrigeration lines, which the other 2 weren’t going to do. When I called the other 2 companies to add the lines in there was going to be an additional $1500-$2000 charge. I’m very pleased with this the work that was done by Air Tech"

Deanna M on January 2024

If you're looking for comfort you can count on, you've found the right place! Whether you need service-and need it fast-or you're looking to replace or invest in new equipment for your home, AirTech Air Conditioning & Heating can help. Ask around... our name is well known and respected in because we care about impressing you so much that you'll want to call us next time and every time. Award-winning Air Conditioning & Heating Company including the Angie's List Super Service Award. Free estimates on replacement systems, new installations and duct cleaning/air purification. Servicing all major brands, makes and models for central and ductless/mini-split systems. Financing is available. AirTech is a participating HERO contractor.

"Air Tech was great. I would HIGHLY recommend. I initially had 2 other companies besides Air Tech come out for a replacement estimate. Price wise Air Tech was right in the middle but were doing a lot more than the other 2 quotes I got. For example they were changing the copper refrigeration lines, which the other 2 weren’t going to do. When I called the other 2 companies to add the lines in there was going to be an additional $1500-$2000 charge. I’m very pleased with this the work that was done by Air Tech"

Deanna M on January 2024

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The Diamond Bar, CA homeowners’ guide to central a/c installations

From average costs to expert advice, get all the answers you need to get your job done.

  • Technician repairing air conditioner

    HomeAdvisor's Air Conditioning Repair Cost Guide gives the average price to fix an AC unit in your house. Find the cost of recharging the AC or fixing a freon leak. Get the price to repair or replace a compressor, handler, thermostat, duct, and more.

  • An AC system in the backyard of a house

    This guide explores the average cost of replacing your AC compressor and all of the factors that go into it, including size, type, and brand.

  • Detail of a HVAC system outside a brick house

    The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.