Good job fixing my A/C unit!!!! Prompt, thorough, job well done. I was happy with the work.

They came out to inspect our AC and furnace for repairs through our home warranty company. He was on time, very respectful and attentive to each detail that needed repair. He even took the time to explain what was broken and how he fixed it. read more

Evan went way over and beyond. Our brand new air conditioner went out randomly during the summer heatwave and we were burning up. We went through our home warranty company and discovered that it would be almost 2 weeks before anyone could come out and provide services. We were extremely frustrated, but decided to make the appointment. When the day of our appointment came, we were told that someone would come between 1-3. When that time went by, I began to be worried. I called and texted and discovered that Evan was going to be late. I was annoyed that I had to call to get an update, but we had no other options. When Evan showed up, he was very apologetic. He stated that his previous job had run late and he would do what it took to fix what problems we were having. It turns out that we had a bad transformer, the wrong plug was installed for our furnace and the wiring had been done incorrectly. Evan stayed until almost 7 pm to correct every issue and made sure to test everything before leaving. He is a man of his word and he did a good job. Our air works, and he even installed our new smart thermostat. He actually saved us some money because I had previously purchased a connection for the C Wire since ours wasn't present. Evan took the time to go into the access and found the original wires tucked away by the people who updated our house. Because of him, I was able to get a refund! Evan and his wife are great people and we are very satisfied customers! read more

Evan and Jay arrived on time. They took care of some warranty work and then performed preventative maintenance on my furnace. The crew is always pleasant and mindful of your house. I have no problem recommending A100% to any family member or neighbor. read more

Incredible job!! JT was so helpful and really helped with a thorough diagnosis! We look forward to rehiring him in the future! Highly recommend. read more

A 100% guarantee has been servicing our heating & air conditioning system for almost 10 years. They have been responsive to our needs and knowledgeable about the systems. They are well trained. I I can depend on them doing a good job. read more

extremely great service at an affordable price. TJ was awesome. I txted at 4am and had a response with an appt time by 6. my appt was made for 2 days later. this company and TJ are lifesavers. read more

I still use this company for all my HVAC needs. Fair prices and they also showed us a large tax credit we will be able to take advantage of when we do our taxes. Evan and his techs are very knowledgeable and we're always happy with the work when it's done. Definitely reccommend. read more

Was to install a mini split system in my home . Does not have the ability to keep his word. Has been over two years. I do not recommend this company's services. Promises never kept. read more

Evan is a true professional. He really knows his craft and was able to troubleshoot the issues I was having with my HVAC after several attempts by other companies recommended and dispatched by Fidelity National Home Warranty. He was very patient and provided a temporary workaround to keep my house cool as well as a solution to my problem. I very much appreciate his honesty and caring attitude. The ducting and return replacement project was performed by Evan and his crew. They were all very respectful, polite and hardworking. Although the job took longer than expected, Evan made sure to personally complete the project. Catriena who runs the office has been really helpful in scheduling the crew and updating me of their arrival and whether they are running late or on time. I highly recommend A 100% Guarantee Heating and AC. Five Stars on professionalism, pricing and quality read more

Evan is absolutely awesome, hard working and dedicated. After another company no call no showed on us in 100 degree weather, with our AC not working, Evan came out after hours diagnosed and fixed the problem. He was at our house well into the night making sure our system was back up and running, without his dedication to it I don't think we would have been able to sleep that night as our house was over 80 degrees at 1030 when we were able to get the unit going again. Thank you Evan! read more

Excellent service! With the new split unit our PG&E bill was $500 less in August than it was in August of 2023. Everything works so efficiently! The customer service and communication were excellent! read more

A++++ Ryan Miller came out to adjust the air flow in our HVAC ducts. But first he went over the entire unit, giving suggestions on filters, etc. He then went under the house, fixed a collapsed duct and took pictures of everything. Finally he gave a quote to reinstall a disconnected/missing dryer vent. He was extremely knowledgeable, efficient and friendly. Great job! Thank you! read more

Great service and communication! Got our heat working fast with no issues. Service representative and technician were able to come earlier than scheduled. Much appreciated! read more

After I posted my review, I got a response back. Technicians came to fix our flue pipes, but that's only because I I told them carbon monoxide was leaking into our garage and requested someone come out the same day. PG&E had to shut off our gas until the technicians arrived. That is how dangerous this issue was. I was told that the technicians would come back this morning between 8am-10am but no one showed up nor did I get a call or text. The owner's wife expressed that she's out of state for a family emergency and will take care of our filters when she returns on Wednesday. That's in 5 days! I understand that they have a family emergency, but so do we. My baby and I have been to the doctors every week for the past 2 months for respiratory issues and our health is getting worse. Their website shows that they offer 24/7 emergency services but I guess our health isn't an emergency. I'm having a hard time breathing, coughing and having chest pain, but seeing my baby (1.5 year old) suffer is so upsetting. All they have to do is install 2 filter grills and they can't even do that. They told me it would cost me money to install it even though a filter box or filter grills are a state and manufacturer requirement. A third party told us that we shouldn't have even passed our inspections with the way our furnace was installed because it's not up to code. read more

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I recently had a new Heat Pump water heater installed by A 100%. These systems are still relatively new, and it was very important to me that the installer understood all of the installation ins and outs, as well as how all the rebates work. They found all my discounts and even did the paperwork for me. When it turned out the installation was taking longer than expected due to some unforeseen wiring issues, the team stayed late to make sure we'd have hot water the next morning. All at a great price with easy financing! read more

The Fan wasn't operable on a split system, at least it wasn't until A 100% heat and Air "looked" at it - then suddenly it wanted to work just fine. I appreciate the wonderful crew (Evan & Ryan) to which I cannot say enough good things about. These guys totally disassembled the dingy-Ma-jig that contained the hoses to this split system stating it was kinda crooked and since they installed it (a good while ago) they wanted to make it right. OMG, I hadn't even noticed it was crooked, but they replaced it and I can surely tell it now looks brand new again. Also gotta mention that they repaired my screen door near where they were working. Screen was sorta blowing in the wind. Ryan says well, we had the tools and knew how to fix it so we did. WHO DOES STUFF LIKE THAT ANYMORE!!! I know my Dad would if he were still alive, but this level of Customer Service is certainly worth taking the time to inform others of the incredible character traits found at A100% Heating and Air. They're certainly forever my #1 choice! Thank you Evan, Ryan, etal!!! Iris read more

Our furnace was making a strange noise and not having experience central heat we asked that a technician be sent out.It was found that a exhaust motor had bad bearings .Donne and Westin our techs.worked diligently to resolve the problem .Donne checked and double checked and even asked the shop and others for their opinions on the furnace problem ..Not having any knowledge of central heating systems Donne explained the function of the different systems involved in making it work..I highly recommend Donne and 100% Guarantee Heating for any Heating problems one might have..Well trained employees is what fixes today's problems. read more

It seems after the pandemic people's work ethic has really gone down hill but everyone at 100% Guarantee Heating & AC has not lost sight of how to take care of their customers! I highly recommend this company they have all been very personable to the point they are more like friends coming into your home. Very respectful and make sure they do not leave a mess and thorough with the job they do. They really go above and beyond. As far as I'm concerned all other companies in general should get trained by 100% heating and AC! Thank you so much for giving me hope in people again lol read more

I hired A 100% guarantee heating and AC to remove 3 air handling units on my commercial warehouse so that the roof could be repaired and the units be reinstalled. When I first met with Evan, the owner, he seemed knowledgeable, but he created a complete nightmare for a simple task on my property and eventually caused over $20,000 of damage to my building and its contents. I have reached out to him for the last month and he will not even bother to talk to me. The first cause of major damage occurred when he ordered and improperly installed the wrong curbs for the units creating a 6 week period where I had 3 large holes in my roof where the air handlers were removed from. He removed his original improperly installed curbs (see photos) and during that time period he assured me if it rained that he had covered the openings and no water could get in. When it did rain his covering failed and ruined an $11,000 printer in the office space down below along with damaging the building. Finally when the new curbs came in and everything was installed he had done so much damage (punctures/tears see photos) to the brand new roof surrounding the areas that he was working that I had to spend $9,000 replacing the brand new section of roof. I also had to hire another company to properly install the duct work because there were large holes left for the air to escape (see video). It's clear Evan does not care about the destruction he left behind. read more

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I had an entire HVAC unit installed by A 100% a few years ago and I hadn't had the system checked up on since then. I noticed some changes in the air flow and temperature so I reached back out to them and they had a technician out within a few days to diagnose and make some small needed repairs. Ryan did an outstanding job checking the system in its entirety and getting us back on track. Thank you again! read more

They recently inspected and replaced all the ductwork under our house due to rat damage. Work was done professionally, clean and by really nice guys. Price was very competitive Had an issue with the furnace rattling and they came right out and solved it. Just some loose metal tape from the original installation. Couldn't be happier. read more

My AC stopped working Friday night. I reached out to 100% and they responded within minutes and set me up for an appointment on Monday. This was impressive since it was afterhours. The tech came and fixed the AC within minutes. He explained everything he was doing, excellent customer service and expertise, thanks Chad! I know who to call if there are other HVAC issues in my house. Thank you, read more

Excellent service. I called about noontime because my AC was not working and it was 100 degrees outside. I was able to get an appointment for next morning, but had to cancel visitors we were expecting. To my surprise, I received a call a little later to say that there was an opening this afternoon. Ryan arrived a little after 2 PM and fixed the AC. I cannot say enough about the wonderful service I received today and how thankful Iam to be a regular customer at 100% Guarantee HVAC. read more

++ to Evan, his crew are top notch *above and beyond* service and attention to detail. Great communication from Catriena even on Sunday with a thoughtful reminder for Monday appt. I appreciate that. These guys really care about getting the job done right. Will definitely use again if needed, and highly recommend if y'all are looking! Very thankful! read more

Evan is great. Great at what he does, very professional and personable. We would only use Evan and 100% guaranteed heating and air for any of our needs. read more

Needed someone to look at our old wall furnace. Company was responsive and communicated well during the process (eg text messages when technician was on his way). Chad was on time, professional, friendly, & thorough. He provided a lot of insight into the unit, an old Montgomery Ward wall furnace. Cleaned up the sediment around the pilot light, the blower fan and grates. Very reasonably priced for the service provided. that the unit will have many more years. If we ever upgrade to central heating/AC, will definitely call the company to discuss. read more

A 100% Guarantee Heating & AC - Old Montgomery Ward wall furnace. A bit of TLC. - Heating & Air Conditioning/HVAC Near Me - Vacaville, California

I needed to have my water heater secured to code as I'm selling my house. Evan was on time and made quick work of it. Then I asked if he could remove a length of 220 wiring that was no longer being used and looked ugly. He was kind enough to take care of that as well even though it wasn't on the work order! I used this company to install a new a/c -heating unit as well as a water heater over the course of the last 3 years. They are always professional, on time and fair in their pricin. I'd gladly recommend them to friends and family! read more

This is my 2nd time calling on Evans expertise and service and he never disappoints. My old A/C unit broke down right before the Holiday weekend during a heat wave. Evan responded right away. Was on site troubleshot the issue thoroughly while explaining all facets as he diagnosed the problem and resolution. I highly recommend Evans services and company. He is a pleasure to work with. read more

I just had my AC fixed today dated July 11, 2018... Yippey!!! So excited to give my review. All I can say is that, I really made a great choice. I message and ask for an online YELP quote on a Saturday night then early Monday morning when I woke up, I have a voicemail from Katrina already, compare to others that I ask for a quote that I haven't get any return whatsoever, for me, this is really a great sign that they value their customers 100%. A 100% Guarantee is legit and I am really thankful to all the Yelpers out there like me doing all these reviews, and here I am right now, giving my own review. Cool!!! As for the price, I find it less expensive. Shout out to Evan, nice guy, and the best part is, he took his 14 year old son teaching him the tools of the trade. Awesome right? With regards to the job, He really knows what his doing. He really make it look easy and fast. Now, I may say, come on Summer, give me your best shot. We are now ready. LoL! ;-) I will surely love to recommend this company especially Evan. Thumbs up!!! read more

A 100% Guarantee Heating & AC - Not that bad of a price. - Heating & Air Conditioning/HVAC Near Me - Vacaville, California

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The house heater was not working. A 100% first tried to repair the heater but it was over 20 years old. It was decided to replace the whole heater. They obtained a heater that would fit in the attic and installed it the next day. A 100% was very professional and easy to work with. They are a family run business. read more

During the heat wave last week my A/C went out; I called 6 different 24/7 places for assistance. Only 1 place (100% Guarantee Heating and Air) called me back and reserved an appt for me. Although, with the help of a friend we replaced the capacitor and the A/C worked after that; it's nice to know that I had a backup. Them called me back within an hr was awesome! Thank you!! read more

A 100% Guarantee Heating & AC - Bad capacitor - Heating & Air Conditioning/HVAC Near Me - Vacaville, California

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Quick service, very professional, and great prices! Communication was continuous throughout. I highly recommend.

The tech was very nice and knew his stuff. He tested our faulty thermostat and then replaced it quickly. He was also great with our small dog. read more

Our heater suddenly stopped working at the worst time so we put a call into the business. Donne responded out same day during the time window provided & communicated when he was on his way. He was honest, thorough, diagnosed the issue, quickly repaired the unit, and took the time to educate me on my unit. In addition to taking care of business he is friendly and outgoing, a breath of fresh air. Would recommend and will use this company again. read more

We've used this company twice and they are superheroes. Great communication and excellent service.

I couldn't have asked for more! Called this morning and the technicians were here today and fixed the problem in 45 minutes and now my house is cool again. Very pleased with the professionalism and kindness of the technicians and the cost was very reasonable. I absolutely use them again! read more

If I could give this company no stars I would. When I first signed up with them they were great but now they are the worst. My furnace wasn't working so I called them, they are supposedly 24/7 service but couldn't come out until 4 days, let's not forget that I'm paying a monthly service fee. They come out tell me it's a pressure switch and that since I have 2 the part costs $344 each plus labor. I look up all pressure switches while the tech is there and I tell him "how? The most expensive one I see here is $90" well he told me their supply store is closed and would call me the next morning. I received no call, here we are 4 days later and nothing. I ended up buying the part for a total of $69 and will be installing it myself. Ridiculous was about to charge me $688 plus labor for a part that costs $69. STAY AWAY FROM THIS COMPANY!! THEY WILL TAKE YOUR MONEY! Thank goodness for google... read more

prompt response, professional and highly knowledgeable technicians. I highly recommend this HVAC outfit.

Came quickly and on time. They were able to fix a problem that another company was unable to fix. Saved me a lot of money and were very nice and helpful! Definitely recommend and will be using for all other work in the future! read more