Top notch in all aspects. - Respect for time/home…read more- Communication - Workmanship - Easy to do business with Came for a leaking sediment filter and ended up fixing all the little things around the house while here: + 2 faucets, 2 sink drains. I would recommend if you want things done correctly and completely.

1/5 Stars: PROPERTY OWNERS AND LANDLORDS, BEWARE. DO NOT HIRE THIS COMPANY…read more As a property owner, I strongly recommend that other landlords and property investors avoid Advanced Plumbing Heating and Air. My experience with this company demonstrated a concerning lack of professionalism, accountability, and basic customer service. Before engaging their services, I explicitly established that all findings, concerns, and recommendations regarding my rental property were to be communicated directly to me as the property owner. Apparently, following simple instructions was too much to ask. During a service visit on October 1, their technician disregarded this arrangement and communicated serious concerns regarding my property's heating system directly to my tenant instead of contacting me as instructed. This created unnecessary stress and confusion that I was subsequently left to manage. To be clear, I absolutely expect HVAC professionals to identify legitimate safety concerns. However, there is a professional and responsible way to communicate those concerns, particularly when working with rental properties. Keeping the property owner informed should be a fundamental part of that process. Because of this experience, I made the decision to terminate my business relationship with the company. Their response to losing a customer was arguably the most revealing part of the entire experience. Rather than receiving a thoughtful, personalized response acknowledging my concerns, I received what appeared to be a generic, AI-generated message. They couldn't even spell my name correctly. Think about that for a moment. A property owner terminates a business relationship because of concerns about professionalism and communication, and the company's response is an impersonal, seemingly automated message that doesn't even get the customer's name right. You genuinely couldn't ask for a better demonstration of the very problem that caused me to terminate their services in the first place. It left me with the impression that my concerns were not taken seriously and that retaining my business was of little importance to them. As someone who owns rental property, I depend on contractors who can communicate effectively, exercise sound judgment, and respect established expectations. I should not have to micromanage basic communication or wonder whether a company is even paying attention to the customer paying for its services. My recommendation to fellow property owners is simple: Take your business elsewhere. Find a company that respects your instructions, communicates directly and professionally, and treats your property and your business relationship with the attention they deserve. There are plenty of HVAC contractors who understand that professionalism involves more than showing up with a toolbox. Advanced Plumbing Heating and Air has permanently lost my business. Between the disregard for established communication expectations and the embarrassingly impersonal response to my termination notice, I have absolutely no confidence in their customer service. If they cannot even take the time to spell a customer's name correctly in a response to a formal complaint, I have little reason to believe they will give my property the attention it deserves. One star. I would not recommend this company to any property owner.

Great speedy response Fareeed from HVAC Masters is the best. Friendly, reliable, and efficient.read more

We had a new unit installed at our old house years ago by Fred. They did a phenomenal job then…read more However this review is from today. I texted Fred yesterday, on a Saturday, because our unit in our new house (Not the one he installed) was having some issues. He came out on a Sunday and fixed it in 30 minutes, and DIDN"T charge us. I am not saying that will always happen, but Fred is stand up guy who stands by his work. Solid guy, he deserves all your HVAC business.

I have had Gabe as a technician from this company on more than one occasion and he is absolutely…read morefabulous. Today he also came with someone named Wyatt, who is fabulous as well. At any rate I've received consistent and professional services from this company. BTW: I also purchased my whole house generator from this company and I've been very happy ever since. I highly recommend them. I guess I should mention why they've been over "so much" and that is because I have them do regular maintenance and service. They know what they're doing and they keep my equipment running beautifully.

Fixed my problem the same day I was very pleased. Gabe Hartman was great!! Right now air handles…read moreall my HVAC problems, and i'm very happy with the company.

This is a little overdue, but well worth the delay. I…read more had another vendor come out and inspect my system to find that I had a cracked heat exchanger, which was dangerous for the home. They did their job and then quoted me a price that I thought was a bit high. I went through my warranty company to see if they would fix that, only to find out they sent out a vendor that couldn't find the cracks. I called Cozy home for a third opinion and they were there soon and not only demonstrated that I needed a new unit for safety reasons but offered me a complete system for $10,500 less than the first vendor. Not only did they make the safety of my family their priority, but installed it quickly safely and as I said before for $10,500 less than the first vendor. Mark was great with the initial inspection and I'm glad he was able to make the recommendation. . I'm happy with the system. The install team was awesome as well. Got the whole thing done in a day. I'm happy I found This Company and feel a lot more "cozy" in my home now and for the foreseeable future. Thanks guys.!

They took my money, failed final inspection, and have not come back to fix it…read more I see the owner, Jason, replied to another person with a similar problem that they "do not have any Install's that are left incomplete." This is not true, at least in my case, and I'm happy to give him the permit number if he gives ME a call--I'm tired of calling and emailing and getting not reply. I hired Cozy Home Services in January 2026 to swap my ducted gas furnace for a heat pump at my home in Oakland. The main installation went smoothly, but what followed has been deeply frustrating. When it was time for final inspection, they told me to schedule it myself, even though their contract says they do the permits. The first inspection failed with nine correction items. It took weeks of follow-up and the intervention of a third party for me to get Cozy Home to send someone out to make the fixes. When the technician arrived, it was clear they had not reviewed the correction notice or checked with the city. He asked me what needed to be fixed, then called his manager for guidance, and ultimately said he would do what he could and 'we'll see how it goes.' They even installed the wrong fix--an unnecessary second breaker box on the outside of the house. That second inspection (which I also had to schedule) failed with six items still outstanding. These are not complicated fixes, either--things like swapping in a GFCI breaker, putting in a proper p-trap on the condensation drain, and other items that are listed right in the blower installation manual. That second failure was six months ago. They have not come back and the permit is still not finaled. During the installation, they also cut up my existing filter box rather than replacing it with a properly sized unit as they promise under their own "right size guarantee." They removed the side of the box and replaced it with a loose sheet of metal, ruining the latching, gasketed door to the filter slot. Now I have to untape the door to change the filter, then tape it shut again. This is not a permanent or professional solution. I have made repeated attempts to get them to work with the city. Their responses are sporadic and commitments are not kept. The equipment itself seems fine. The problem is entirely with follow-through, workmanship on the details, and responsiveness after the sale.

Great business and HVAC company, no complaints here. Technician Chris McDermott absolutely the best…read morereally knows his job and does it well a five star company.

Rennet Heat and Air Conditioning did an excellent job. Highly recommend for installation, quality…read moreand communication.

After 25 years, my Concord home needed a full HVAC replacement. I did my homework -- four quotes,…read moreverified equipment certifications, asked hard questions about duct sealing, zoning, and equipment sizing before deciding. A-1 answered every question confidently, corrected a spec error in their own quote when I caught it, and put everything in writing before I signed. Install day: Austin, Joey, and Edgar showed up on time. Floors covered, shoes covered, house treated well. Two days -- day one removal and new equipment, day two ductwork and zoning. Heating and cooling tested before they left. Full documentation handed over on the spot. No hidden charges, no surprises, no change orders. Price was mid-range among four quotes, but the warranty structure -- lifetime workmanship, no-lemon guarantee, payment at completion -- made it the best overall package. Still have HERS test-out and city inspection scheduled, but based on every step of this process I'd recommend A-1 without hesitation. Austin, Joey, and Edgar did a great job.

Kudos to Jonathan Meza, Maintenance/Service Tech, for the excellent customer service during my…read morevisit. I reached out to A1 because I am a repeat client who previously arranged installation of a heat pump water heater and a heat pump HVAC system in my home. This visit involved checking a UV lamp that my Ecobee app indicated was overdue for replacement. I discovered, however, that my system lacked a UV lamp. Even so, Jonathan shared more details about my setup and showed no annoyance over a call that differed from the initial report. He described the UV lamp options available for my unit and noted that he would gladly return to install one if I chose to add it to my heat pump system. For all your heat pump system needs, I strongly recommend the team at A1 Guaranteed Heating & Air.

Alex S. was very helpful, great service, very knowledgeable about the products and process.read more

Got a HVAC unit tune-up done through Home Depot and Kevin Ly was amazing and really helpful and…read moreeducated us and checked every bit of the heater and cooling system. I would highly recommend Jazz and Kevin. In the tune-up service, I would have hoped that they cleaned the exterior of the cooling unit blower.

Excellent service. Called Thursday, had technician on Friday. Needed new AC/Heating unit as mine…read morewas 25 years old. They arrived Monday morning and installed the new unit. Worked with me on the financing and the required inspections. Pricing was reasonable for the new unit.

Rendon Heating & Air Let me start by saying, we are 100%…read moresatisfied with the quality of the work, the friendliness of the owner & staff and the quickness the work was able to be completed.The owner David was able to come out, assess the issue with our AC unit and furnace, quickly get us a quote (that was more than reasonable) and get the new unit installed within 2 days. Incredible. Julian & Brendan, their technicians were knowledgeable and really gracious and friendly. I wouldn't hesitate to recommend them and would absolutely use them again if the need arises.

I used All Weather Heating and Air to replace my old HVAC a couple years ago. Their price and…read moreservice is what made me choose to use them. Their techs are all very friendly and knowledgeable. I like how they take their time to explain what they are doing and also give tips on how to maintain your HVAC system. This review is for my most recent experience with All Weather. I am a realtor and needed a HVAC inspection ($150), so I call All Weather since I had a great experience with them before for my own HVAC system. Art (Arturo) was assigned to the inspection. An email (with the tech's name and picture) and text was sent when he was on his way which is nice. Art did not rush the inspection and was very thorough. He took time to explain what he was doing and what he was checking for. Also took time to explain what maintenance items needed to be completed. Then provided a thorough report of the maintenance items needed and cost if they were to perform them. Overall, I am very happy with their service and their technicians' knowledge and professionalism.

Ricky was knowledgeable and provided excellent customer service to our air-conditioning service! So…read moreappreciate next day service especially in our Vacaville summer heat. Highly recommend!!

Richard's excellent customer service and integrity have completely won me over. I'll be going to…read morehim for all my HVAC needs from now on. I called because my air conditioner didn't seem to be working. This is the first heat wave of the year. He was able to squeeze me in within 30 minutes of the call since he was right up the street at the time. The problem turned out to be a tripped breaker. Or a breaker that was turned off. Very simple fix. He refused my offer for payment for his time and diagnostic saying he can't charge me for flipping a switch. This is the type of honest company you want to support! Richard saved me a premature $10k+ AC and furnace replacement! When dealing with such a large potential repair or replacement I wanted to get a second opinion. I was told by the first company the entire unit would probably need to be replaced due to the age (20 years) if it's not the refrigerant being low it'll soon to another issue. I'm so glad I contacted Richard's Air Tech! It can be very hard to find a trustworthy business that is not looking to upsell everything. Thank you Richard!

I reached out to Richard at 8pm and he had his son AJ come the next day. We appreciate the last…read moreminute visit! We needed something replaced, he replaced it right then and there. Super friendly, quick, and knowledgeable. AJ was able to answer all our questions and he was so nice! Would definitely recommend them.