Heating & Air Conditioning / HVAC near Diamond Bar

“I cannot sing enough praises for McMaster Mechanical. I work with many contractors so I know how hard it is to find someone who is reliable and competent. Bryan has went above and beyond in every job he has done for us. He does not hire other workers cheaply to do the job for him like I've had other contractors do; He makes sure that the job is done correctly himself. I have found Bryan to be forthright, honest, skilled, proficient and professional. He will explain the job to you and what it entails and keep communication with you until it is done. His expertise and transparent communication gave me genuine peace of mind throughout the entire process. Thank you McMaster Mechanical“

“Fenco just installed the Lamborghini of air conditioning Carrier 5 ton and 4 ton variable speed. And I love it! Kamal is very thoughtful thorough and meticulous. Fenco will take very good care of you.“

“Great customer service from booking the appointment to the technician (Allan) who showed up. Allan was extremely knowledgeable and professional. Definitely recommend this company for all your air conditioning needs!!!“

“They did a great job. They were on-time. They spent over 10 hours removing/disassembling our old system and then installing the new one. We installed a vertical condenser unit, so the price of the hardware was more than a standard unit. However, the price I got from them was $1K-$2K less than others.“

“Abraham and Angel did a great job. They were quick, clean, and professional. This is my second whole house fan from J Martin and should I move again, I’ll be back for more.“

“Fast. Professional. Reasonable price as well. Found them on NextDoor posting from another customer.“

“I called pest control, vent cleaning and no one could take on the job. We were ready to seal up the dead critter in our 20' long dryer vent and have Service Lion make a new ducted vent for us when they said their plumbers could remove the critter. They came out and tackled the job even though they'd never done that before. Awesome people and their concern for us was special. THANK YOU!“

“Haven has been my go-to HVAC service for years and for good reason. Cody here, was in and out of my condo in record time, and fixed every issue I had. I'd give anything for a dozen more contractors like him“

“In and out. Professional, knowledgeable, affordable, oh, and great product (whole house fan).“

“Everyone was so nice and friendly. They were prompt on time got out the same day Cleaned everything up after they left was perfect“

“Anthony from Steve’s AC did a great job! He was very knowledgeable, efficient and cleaned up after himself. I would highly recommend Anthony!“

“John Z. Very efficient. Knowledgeable. 100% customer service. Paul always hires the best technicians.“

“Axel the technician was great.He was honest and down to earth .Great customer service staff.reasonable price .“

“I have been very pleased with the customer service provided by Evolution HVAC service. They installed both the central heating and air in my home and a ventless system for my garage. They responded quickly with any HVAC issues. Highly recommend“

“Accurate Electric, Plumbing, Heating and Air is one of the most reliable, consistent, companies that I have had the pleasure of hiring over the last seven years. They send only individuals that are so professional and skilled such as Lance and Paul on two separate jobs recently and I received great service, accurate and extensive description of the electrical and gas situation and Lance even caught a minor gas link that could have become more serious. Accurate is also excellent in communication sending texts to advise and reconfirm appointments and sending pictures of their employees so you can feel confident who you are allowing in your home. I strongly recommend Accurate Electric.“

“Luis - was kind helpful and very willing to repair and teach me about what was happening with my furnace“

“UPDATED: Zach came on time, and with a professional as well as friendly attitude, he did the routine maintenance required on our HVAC and pointed out to us areas which we will have to keep an eye on in the future. He is knowledgeable, efficient, and did everything in a timely manner. All this at no charge. I highly recommend him as well as Air Concepts.

Mark S., the technician, was knowledgeable and made an evaluation and repair. The response time was excellent; we called that morning early and he came within the promised time, a few hours later, which we really appreciate because it’s in the 80s and we had no air-conditioning because, as it turns out, the rats had eaten through the wires! Plus the parts that needed replacement were covered by the warranty, which was wonderful because they installed this unit nine years ago!“

“This company was fantastic! Their pricing was competitive and the service was friendly and really great! I highly recommend Accurate Air!“

“Brandon is a great technician and went above and beyond helping us with a rodent problem he discovered while servicing our unit“

“This company was recommended to us by my cousin and my niece and, boy, Whole House Fan Co did not disappoint! When I called to make the appt, Kelsey was patient & kind, and explained the different sizes of unit that may work for us. She recommended two, in particular, which the technician brought with him. Neither one fit our space so the technician drove to the local warehouse to pick up the correct size and came back to install it. 5/5...I highly recommend this company. =)“

“Benito was a star. He was so patient and answered all of my questions very throughly. He went above and beyond!!!!“

“Dominic Greep came to my home right on time. He was professional, courteous and friendly. He looked at the hot water tank and knew where the problem was. After fixing it he waited to see that the problem was not recurring and made sure I’ll have hot water the next day.

I would not trust any other company with my HVAC or plumbing needs.“

“Absolutely the best! Installed new furnace and AC. Arrived on time and worked quickly and efficiently. Their type of professionalism is a rare find these days.“

“As always, Jim was on time, courteous, and professional. The problem was repaired and explained. The office personnel were prompt and efficient in their follow up and kept me posted of technician’s ETA. Comfort Zone has my highest regard for their services, technical and customer.“

“Reliable and professional problem solvers.
Thank you Eric, Frank, Fabian and team.
Judith D.“

“The employee you sent was very good and did excellent work. I have been upset because Canyon Air totally ignored the air conditioning service we paid for until I phone. But this good employee made me feel good about the company again“

“Joshua was prompt, guided us through our repairs. Can't ask for better service! THANK YOU
Cypress Heating and Air! Rayleen and Chuck Hakker.“