Get matched with top heating and air conditioning pros in Diamond Bar, CA

"In preparation for replacing my HVAC system, I went through a few different estimates. The reason I chose Air-Tech was not because of price, but because I was impressed by the details provided to me. Rod was great. We went into the attic, reviewed all the components inside and out. And we discussed the scope of the work. Once I agreed, he gave me a start date\time. The crew showed up on time and worked hard for two days. Not only was I comfortable with Rod, but the crew was great. My new system is in place and I couldn’t be happier that I chose Air-Tech. If you’re in the market for a new HVAC system, do yourself a favor and call them. You won’t be disappointed."

"Great. My daughter contracted Air Duct Professionals to do her home. James, the technician, was professional, knowledgeable and did a quality job. I contacted Air Duct to do my home and requested James. James arrived on time and did an excellent job. He also helped me with a leak with my HVAC Condenser and diagnosed and fixed the issue."

"THE OWNER; CHRIS ROBINSON WAS AMAZING, EXCEPTIONAL CUSTOMER SERVICE, GREAT PEOPLE SKILLS. UNBEATABLE PRICING ON UNITS & LABOR I HAD BEEN QUOTED VERY HIGH BY 4 OTHER COMPANIES, HD MECHANICALs PRICING WAS HONESTLY EXTREMELY AFFORDABLE. HIGHLY RECOMMENDED FOR ALL YOUR HVAC NEEDS!!"

"Installed a new HVAC system. They were punctual and professional. I'm very pleased."

"Archie, Allen, and Chad were all great.  On the first visit, Allen came to replace our 1-piece Costco toilet that would not stop running.  Archie was also here (on the dot at 10 a.m.) for our appt to provide estimate for upgrading our HVAC and water heater.  Archie was very patient and gave us a lot of details on how the job would go, including where they would put the new furnace in our attic crawl space.  He was here for over an hour explaining everything and even gave us a referral to a landscaping contractor at our request.  He even helped Allen load the old toilet onto our car for return back to Costco because I'm too small to lift it and my husband can't lift by himself.  They didn't have to help us load the toilet, but went out of their way to do it.  Above & beyond service. Chad was equally friendly and professional on the second visit (he had to come back as we encountered some leakage with shut off valve and at the pipe connection).  He was in and out in 30 mins and even explained all the different toilet parts to me so I would know what to make of all the toilet sounds next time around (running, squeaking, etc.).  No plumber has ever taken the time to explain an installed part to us before, and it'll help us determine which part is broken (if it does!) the next time.  These guys are truly professionals.  We're keeping their contacts close so we can call them for all our future plumbing issues.
"

The industry's best technicians make the happiest customers. Turn to the pros at All City Plumbing, Air, & Electrical for all of your plumbing, HVAC, and electrical needs. Proudly serving San Bernardino, Riverside, Los Angeles, and Orange Counties. We have over 5000s 5 star reviews across the web from our thrilled customers. Our company goal is to make sure that we have 100% customer satisfaction. We have options and payment plans that can fit in everyones budget. We provide free estimates and you only pay when you're happy. It's no surprise we've received the Angie's List Super Service Award six years in a row! Established in 2009. ACP was created to deliver exceptional service with the highest quality of craftsmanship. We guarantee you will be happy with our services in that we offer a money back guarantee. Our technicians are regarded by their peers to be some of the best in the industry. Our service experts are continuously trained. There isn't a plumbing or hvac problem we can't solve. We have the experience, knowledge and focus to solve any problem you may have. Give us a call today and let us earn your confidence.

"Sam, who came out to give me an estimate for a new system, found out that the old fan motor was the culprit and recommended that we just repair the motor. He explained things in detail, helped us to save money in a genuinely sincere attitude, I was impressed how good his service was, and I recommend him for any HVAC issues. I will be using him in the future."

"George & Earvin came out to diagnose my wall heater and were very helpful from start to finish. Highly recommend you give them a call for any HVAC related needs"

Penguin Heating and Air Inc is here to help! We offer a variety of HVAC services from service to installations. We are based out of the Placentia, CA area. Give our team a call today. We're looking forward to working with you!\n

"We had Temp Air install our AC unit. The best decision we ever made. They were fast, reliable and dependable. Excellent customer service, did a phenomenal job. After a couple of years something was going on with our unit, I called them and immediately they send out a technician Juan, who was phenomenal. He explained what the issue was and resolved it asap! Highly recommend this company!"