Our 30 year old HVAC (furnace/coil/condenser) was no longer working, so we needed a replacement before the summer heat started. So I do what I always do, which is search on Yelp! I found Giant HVAC had great reviews, so requested an estimate. Joe came out and did an assessment and gave us a quote with many different options (different efficiency, different price points, different options). I got 3 other quotes and Giant's was the best in terms of price, what they were going to do, and professionalism. Once I signed the quote, they came out the next week and made quick work of the installation. Within a few hours, the new system was set up and everything worked perfectly! All throughout, Joe was communicative, professional, and extremely pleasant to work with! read more

Giant HVAC - Heating & Air Conditioning/HVAC Near Me - Fremont, California

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It's been 4 years since Joe and his team installed my AC system, and the system has been wrought with issues within the first few months. Issues include: -- The AC was poorly installed to the point where refrigerant was leaking and needed to be refilled within the first year of installation. Four years later, it's required at least 4 refrigerant refills, in which refills should only happen once every 5-10 years. -- Joe himself has been a snake oil salesman who claims to "take pride" in his team's work, but gave me the runaround about him being too busy to visit the first time I shared concerns about the first signs of the AC not working. Then, in my frustration and leaving poor Yelp and Google reviews, you can see his defensiveness and trying to blame me (the customer) about the all the issues I experienced stemming from this crap AC installation. -- In seeking a more permanent fix over the past few months, I've met with at least a half dozen HVAC contractors, and every single (6+) technician proactively and independently commented at how poorly installed this system was, and every single one of them had serious questions about why or how this job was completed. Not one of them was surprised that I had issues with the AC starting within year one, but was surprised at how unaccountable Giant AC has been. -- Giant AC left so many holes in the walls that created a rat infestation in my attic and crawlspace that cost thousands to fix (and before Joe tries to defend himself and blame me, the exterminator clearly pointed to the areas where Giant AC left gaping holes at the root cause to this infestation). -- The AC wire coverings are completely mismatched and very ugly (see pictures). This visually represents how shoddy of quality and care Giant AC sets as the standard. Unfortunately, Giant HVAC did such a bad job that there are not only leaks across multiple lines, it's also reeking with other hardware issues (e.g., condensers are messed up). And now I'm left with two options (based on various independent HVAC contractors): -- spend thousands to do a complete quality check, rebuilding the HVAC lines, and replace various components, and only be given a 50/50 chance this will permanently fix the issue, OR -- completely replacing the HVAC system installed by Joe and his team after only 4 years of installation. As you seriously consider an HVAC contractor and spending $10000s, I highly encourage you to consider my experience and look for a different contractor. read more

Joe and his crew were great. Installed new furnace, AC, & ductwork to replace our very old system. Did good work and were verfriendly read more

Giant HVAC - New Carrier furnace - Heating & Air Conditioning/HVAC Near Me - Fremont, California

So this company had come within 24 hours to my parents house in Newark. This is service that is lacking in many areas. Joe our service tech was explaining issues with the AC unit, he was clear and we understood what he was doing to recharge the unit. Hopefully we do not need him to come back if the unit does not hold 10 degrees sub cool. He also replaced the furnace filters. Moving forward this will be our go to HVAC company. read more

Giant HVAC - Joe testing the units for refrigerant. - Heating & Air Conditioning/HVAC Near Me - Fremont, California

Joe and the Giant team came over and gave us the best experience with installing an AC. Other companies tried to sell us their most premium service without acknowledging the fact that our house just doesn't need it. As new home owners, it was such a pleasure to work with someone who did a stellar and affordable job! Joe even came back after a couple of days when we shared that we had some issue with the fuse (totally our fault) and fixed it free of charge. Assured us that he'd be happy to do it again if something comes up and kept in touch after then. It's a great team of people who're patient and knowledgeable. Would go back to him any day. read more

BAAQMD regulations make gas furnace replacements tough and expensive, but Joe from Giant HVAC made it a little bit easier. He gave me a fair quote, handled the quick installation, and arranged the HERS testing. The project passed city inspection on the first try. Working with Joe was a pleasure! read more

Giant HVAC - Replaced Furnace - Heating & Air Conditioning/HVAC Near Me - Fremont, California

Joe is simply awesome. He is been helping us out for many years and am quite impressed with his diagnosis and fixes of all the HVAC issues we have encountered. He is very responsive and transparent throughout. We have worked with other contractors in the past but Joe really stands out. Would highly recommend him. read more

Excellent customer service, speedy & quality work. Joe and his assistant were very polite and professional. They kept the work space neat and clean. Communication was good; they explained every step of the process and were very considerate of my family and home. read more

Giant HVAC - New furnace installed - Heating & Air Conditioning/HVAC Near Me - Fremont, California

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Very happy with the service from Giant. My first visit from Giant was to replace my old condenser unit. Joe gave me all the options I asked for and explained the tradeoffs clearly. During that job I asked for pricing on replacing my ducting, he was able to give me a ballpark estimate on the spot. About a year later I called Giant again to replace the ducts and quote came back squarely in the range given the year before and again with excellent service. I should mention Francisco as well, he did the install for both the condenser unit and the ducting. He's absolutely excellent. He shows up on time, he was respectful of my home, and really a pleasure to work with. I'll likely replace my furnace in future and when I do, I'll know exactly who to call. read more

Joe responded quickly to my request for a quote, explained the options available to me and gave me advice in how I should approach. I was wanting to add a zone for HVAC. The price was fair and he could deliver this week, so I went for it. His team installed and was done relatively quickly. He tested and confirmed functionality. I waited a few months to give this review as I wanted to make sure that I was happy. I am more comfortable in my house now with the same or less energy used for heating and cooling. I would recommend Joe to my friends. read more

Talk to Jojo and let him know that my daughter's HVAC unit which is on the roof kept blowing a fuse. So he came out took out the fan blower. Check the compressor and replace the disconnect. I feel super confident that this time it will work compared to those who have come before to fix it. Truly, a man of integrity and I would highly recommend the great quality of work he performed. I believe he went above and beyond to make sure it will stay running even though it's an older unit. Lastly, he did it for a price that I can't mention. Know that the value of his work is good. read more

Giant HVAC - The new disconnect - Heating & Air Conditioning/HVAC Near Me - Fremont, California

Smooth interaction! Joe was very detailed with explaining all steps of installation. He came back to test the equipment and also made sure we were happy with the experience. read more

Giant came to take a look at my heater to offer a second opinion. They were very professional and put my mind at ease regarding its condition. I would definitely recommend and contact them again if the need arises. read more

I reached out to this company due to the good reviews and it being a local business in Fremont. The A/C at my rental property was acting up, and I was worried about causing unnecessary disruption to my tenant. Joe responded promptly and helped coordinate with them to get the job done. It was relatively painless and fairly priced. I would recommend Giant HVAC! read more

Joe from Giant HVAC is a customer-focused expert in all things HVAC. I've been fortunate enough to use him to recharge and check my A/C unit and ducting. His advice and expertise resulted in my unit running more efficiently. I highly recommend Joe and Giant HVAC!! read more

Joe is the person to go to for HVAC issues. He came by as promised to troubleshoot the problem and returned later that evening to replace the part. Really appreciated the extra effort to ensure that we have heat during the night! read more

Joe responded quickly, arrived on time. Quickly diagnosed issue and fixed issue. Price is good too.

Joe and his crew installed an air conditioner unit a few months back and we couldn't be happier. After the estimate/quote- we agreed upon a service date and they completed the job within a day. Even after a few months of working properly - there was unforeseen issues with the unit. Joe immediately sent his crew to update and fix the service back to normal. Since then it's been working properly with no problems. They are very responsive and can turn around either a call/text or visit quickly. We highly recommend this company to anybody looking for air conditioner services. Thank you read more

Joe is incredibly knowledgable about all things HVAC. And being super responsive really helps. He supports both Carrier as well as Gree. Gree is a fairly large player in the HVAC space and is a very cost effective option for folks looking for alternatives. read more

We've decided to replace our furnace after the 30 yr oldie is not working properly. Joe has been very responsive throughout the process. He came over, took a look and gave us a few options. He sent us the proposal with all the options next day. After we decided what we needed, he got the required permit from the city. Joe did all the paperwork, permit application and stayed through the city inspection too. It was a quick and hands-off process for us. The actual furnace replacement took one day. The team did a great job and good communication with my husband about any concerns. The price is fair as average. The services and experience exceed my expectations. I highly recommend Giant HVAC. read more

Giant HVAC - Our NEW 2-stages furnace - Heating & Air Conditioning/HVAC Near Me - Fremont, California

Joe was quick doing his assessment, and did the service quickly and efficiently. He became my new go-to for any HVAC problems in the area.

I highly recommend Joe! He came over to provide a quote to install zone to our existing AC unit since we thought we weren't getting much flow on the 2nd floor. We replaced our filter before he came and turns out, it did the trick! He was so nice and double checked my husband's work- we had it placed incorrectly and he helped us fix it. He also explained why it was important to replace it. :) Appreciate his time and help! read more

I would highly recommend Giant HVAC company for your heating and AC needs. My 25 year old Carrier AC's and furnaces needed replacing after failing. The owner, Joe, came to inspect the house for the bid. It's a family owned business. The service is personalized. He was professional, knowledgeable, and friendly. He offered several potential solutions that I had not considered and several levels of cost options for us to think about. The other companies I had bid on the job sent me one quote and gave me one solution. Joe was available by phone and text to answer questions. All my questions and concerned were addressed fully. The work was done in a timely fashion. The installers were hard working, professional, and polite. The work site cleaned up. I felt worry free. I am very pleased with my new AC's and furnaces and the work done by Giant HVAC. For a good experience, I encourage you contact to Giant HVAC for your HVAC needs. 510-624-4268 read more

Even in a very busy summer, Giant found a time to look at, and FIX, my air conditioner. Excellent service.

I really enjoyed working with Joe. He was so easy to talk to and explained everything in layman's terms for me. He went above and beyond by offering to remove our extremely old furnace (at no cost). Unfortunately, that sucker stayed put because of its awkward location in the crawlspace, lol. It was so kind of him to offer though! Anyways, he helped me install a brand new furnace and A/C unit, all to code. We easily passed the HERS test and the inspector signed off on their work without issues. Joe offered the most fair pricing of all the contractors that I spoke with. He was honest about the performance of the system given the type of house layout we had (potential for some areas with poorer airflow). Nevertheless, the finished system kept us comfortably cool during the hot summer months, and we are grateful for such a luxury. I can't wait to turn on the furnace and see how cozy it'll be this winter! The entire install took two days. The work was clean and aesthetically pleasing. They really thought about the location of all the vents, supply, and returns. Such professional workmanship. I highly recommend Joe for your HVAC needs- his pricing is competitive; he has excellent communication with his customers; and his team does great work. read more

Giant HVAC - It was tricky to place the condenser in this spot, but Joe's team figure out a clever way to run it through the crawlspace. Kudos! - Heating & Air Conditioning/HVAC Near Me - Fremont, California

Giant is and understatement, Joe is definitely a giant guy. He and his team did a very clean install of a mini split for my new office shed. It's quiet and works great to heat or cool my office. read more

Our furnace went out had to get it fixed ASAP I called Joe Saturday morning and he came out same day ! He is a gem And will be our Go to for our HVAC needs. Very reliable and honest . He didn't gouge on the pricing straight to the point and very informative on the problem .Thank you again ! read more

We got quotes from over a dozen different HVAC companies in the east bay to install a mini-split air conditioner in our loft. Some of the vendors we spoke with told us our project was "too hard" because of our building's layout. I'm glad we were eventually referred to Giant because Joe and his team aren't afraid to take on challenging projects, and they have the skills to deliver great results. During the proposal process, we asked a lot of questions and Joe's expertise is what really sealed the deal. He provided thoughtful, detailed responses that helped us to feel confident with the investment we were making in our home. Pricing was transparent, fair, and honest throughout. For the 2.5 day install, the Giant team arrived on-time, were exceptionally polite, and kept their workspace tidy. We appreciated how diligently they followed COVID precautions in order to keep everyone safe. We're very happy with the result. After living in Oakland without a/c for over 15 years, we finally have some cold air for these increasingly hot summer days! read more

Excellent service, quality workmanship , reliable, professional. The business is attentive to the quality of workmanship and the care of the owners property. read more

Words I thought I'd never say - had the best experince installing AC unit! Joe does a great job assessing the scope of work and makes reccomendations on brands, materials, improvements/alterations keeping cost and performance in mind. His team is super easy to work with, communicate well, respectful of your space, and the best part: finish the job on time!! i'm praying that my 30 year old furnace never breaks, but if it does, I know exactly who I'm calling. Thank you Giant HVAC! read more

Joe is AMAZING! If I could I would give him 6 stars I would. First things first, if you expect that the he will do all the work himself, thats not a realistic expectation when it comes to communication and followup, Joe is amongst the very few contractors who is at the top of their game. He is very clear and upfront about setting expectations and then meeting them. I had to travel out of country half way through our project and Joe had offered to come and resolve any issues. Our project was complex and involved replacing single zone HVAC system with a 2 zone Heat pump based system. To make thing more interesting we had to add a new return from the second floor which made the project pretty custom. His team's workmanship is as good but that is to be expected, but following up and mitigating issues when they do arise, because parts fail, things happen thats when Joe shines through. read more

My parent's AC finally gave out after 20+ years...it was time for a new one. I hehlped my mom locate a vendor by searching for locall vendors through yelp. We had a few quotations from local vendors but some were either ovrpriced, never followed up or had hidden fees after the fact when asking additional questons for specified work to be done. Joe was kind enough to prepare an easy to understand quotation selectingi the best option that was best for us. Additionally, the expectations were set ahead of time as some ductwork along with some other minor repairs "may or may not" be required -- but we wouldn't know until the work started. However, he Joe was very upfront about the work that he couldn't do or was not an expert in -- so that was helpful to know in advance so that we can consisder any additional separate costs that may be incurred as part of the AC overall replacement. My mom was very happy with Joe's work as they were very thorough and professional. They cleaned up after all the work was done and Joe even came back to do a quick check and make sure everything was working as intended. He is very patient and spent some time with my mom to show her how to properly handle configurations and filter of the new AC equipment. Definitely recomment Giant-HVAC if you need an AC replacement! read more

Joe with Giant HVAC did a great job putting in a new heater for my parent's house. He and his team gave us a fair price and delivered what they promised. They were quick and also professional. I would recommend this company. read more

Our 40 year old gas furnace died and Joe came out to give us an estimate on a replacement. First thing, he wanted to try turning it on to see what might be preventing the blower from kicking in. He could tell from the sound that it was getting a signal, and was able to diagnose the problem and get it started. He agreed there was no need to replace the furnace and was hopeful it would get us by until we were ready to install a heat pump and go solar. His skill and honesty saved us a lot of money (and kept us warm in the meantime!). I can't recommend him highly enough! read more

Called Giant HVAC for a quote for a new heat pump and ducting. We scheduled an appointment for the next day at 10-11 the next day. At 10:15, Christine called and left a message that they were running late. I called back and said it was fine to come later..she said closer to 12:30 over the phone. I called them between 1:30-2 a few times and clearly they decided to ignore my calls. I would have been OK to wait longer, it would have been nice to not have to sit around waiting for them for over an hour during the rescheduled time...and for them to at least let me know they couldn't come at all rather than ignore my phone calls. At 2pm I decided they weren't coming out at all. Thank you for wasting my day. Completely unreliable. read more

Giant HVAC - Originally scheduled time, rescheduled time..and time stamp that at 2pm they STILL didn't show up and started ignoring my phone calls. - Heating & Air Conditioning/HVAC Near Me - Fremont, California

The people at Giant have some of the best customer service I've ever experienced. I'm pretty well traveled and have lived in many different places, they are top notch with good prices! Love the family feel as well read more

I initially contacted them for a new hvac system including all new duct work in Nov 2022. Existing house had wall furnaces. Joe responded quickly and was able to provide a competitive quote. I delayed the project and finally got the installation done in Mar 2023 but Joe was nice enough to honour the same price. Installation was quick. Took them 3 days and all permit related paper work and inspection scheduling was done. Highly recommend them. read more

Joe and his son came to our house this past Friday on time to help diagnosis and repair our AC. Joe did a great job with quality work at a great value. We will use him again. read more

Joe and his crew were great. We had an AC installed along with new duct work and everything was done in a few days. All equipment is working great and we are very happy with everything. read more

Joe and Giant HVAC are simply amazing. I searched everywhere and got 6 quotes. Joe was very patient and extremely competitive! He revised my quote several times based on us exploring different options. He is super knowledgeable and took a ton of time to explain all of ways we could add A/C to our upstairs and downstairs. Don't hesitate to call him today! read more