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    Services - Greiner

    HVAC installation or replacement

    HVAC system repair

    HVAC system maintenance

    2 More Services

    Water heater installation

    Water heater repair

    Greiner Photos

    Recommended Reviews - Greiner

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    Reviews With Photos

    very polite hard worker!
    Michelle M.

    Carlos was very polite and professional. listen to my concerns. very clean and on time, explained everything so I can understand everything he was doing, great job Carlos !!!!!

    Ray & Angel - great service

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    3 months ago

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    11 months ago

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    3 years ago

    He checked out our AC system and told us what shape it was in. He told us the price to fix it. He wasn't pushing us to buy a new unit.

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    Page 1 of 3

    Ask the Community - Greiner

    Review Highlights - Greiner

    I recently had my entire air conditioning system replaced by Grenier after having an unfortunate experience with another company.

    Mentioned in 3 reviews

    Read more highlights

    Water Heaters Masters

    Water Heaters Masters

    (833 reviews)

    I am still in the research process for this project, but I can say how impressed I am with Water…read moreHeaters Masters. They responded to my request so fast I thought it was a bot, but it wasn't. A real person called and left a message. I called back to explain what I was interested in and he scheduled an appointment for that day (I think). I was assured that I'd be called or texted when the technician was on his way. I expected to have to wait the full 2-hour window I was given, but no! I was called about 5 minutes before the window started to see if I was still available. The technician arrived exactly on time, right at the start of the window! After a short explanation of my needs he just said "OK, let's take a look at the space and talk about it." He explained every step of what they'd do to install a tankless water heater, he looked at the whole area to check for pipes, electrical access, spacing inside and out for a condensation line - making feel very comfortable that it would be planned before the installation to avoid last minute issues. A big plus, he told me he'd be part of the installation team. He also told me I should go ahead and get another few quotes. I think these guys are confident they're giving the prices in the sweet spot of costs. Then we spent time just talking about landscaping and plants! I'm not in a hurry to start this project, it's on my list of improvements and I'm just starting to investigate. However, I'm extremely impressed with the service given at this stage, the thorough approach in explaining, and the honestly. I will get another quote, but the next one has a high bar to cross; not only the service, but Water Heaters Masters quote was WELL below the only other quote I had gotten so far. I have a very good feeling about WHM. I'll come back to let you know more when I've finished the whole project.

    After a frustrating experience with another company, I'm incredibly grateful I found this team…read more My water heater started leaking from the second floor into the first, and I needed help fast. From the moment I called, they were responsive, professional, and honest. They were able to come out within an hour, which was a huge relief given the situation. The technician quickly assessed the problem and gave me a straightforward, fair quote $2,300 to replace the water heater, which was significantly lower than what another company had tried to charge me. No pressure, no upselling, just clear communication and solid work. They completed the entire installation in about two hours, and everything has been working perfectly since. You can tell they know what they're doing and respect your time. What really stood out to me was their honesty. I asked what they would have charged to replace my laundry room valves (something I had just paid way too much for elsewhere), and they told me around $350. That level of transparency says a lot about their integrity. If you're looking for a company that is reliable, reasonably priced, and professional, I highly recommend them. I'll definitely be using them again for any future plumbing needs.

    Hall's Plumbing - Serving Davis, Woodland, Dixon, Elk Grove, and Vacaville with trusted local expertise.

    Hall's Plumbing

    (209 reviews)

    Chris came out to resolve my plumbing issue. He was on time and very courteous. He called to let me…read moreknow he was 25 minutes out from arrival at my home. He was very accurate in his eta. He explained the estimates for my repairs. He was quick and efficient. I asked for an additional minor plumbing issue and he was more then obliging. A little extra help and no extra charge. I'd request his services again. oh! and he was soooo good with my over excitable 15 month old puppy. Thank you for your excellent customer service. Janet R

    I had a very slow leak under my kitchen sink that went undetected for quite some time, but…read moreunfortunately I discovered it just 2 days before a party I was hosting and I wanted to get it finished quickly. A co-worker recommended Hall's, and I called on Friday morning around 7:30AM. I spoke with one agent first, who got my information down--including my request to have service done that day--and was then transferred to a second agent who helped me secure a window from 4-6PM, which would allow me to still go into work and not have to cancel my dinner plans. I was told that I would receive a call 30 min before the plumber would be at my house. I kept my phone off silent to listen for a call, and so I wasn't in a huge hurry leaving work. I was just getting to my car at about 4:05 when I received a call from Austin stating he was at my house and had already called me. I had no record of a missed call, text, or email. Luckily, I work in town and was able to get to my house in about 10 minutes. Austin was very friendly and greeted me outside of my house. When he checked under my sink he saw that two of the valves were leaking, and also commented on the shoddy workmanship with the installation of the drain and garbage disposal: typical of new construction. I could kind of sense this was building a case for something, but I waited for him to give his pitch. He said his "foreman" would probably only approve a total replacement of the valves rather than try to repair a potentially poorly-installed and low quality valve, and also suggested a replacement of the 3rd valve since that one would likely leak as well. I have had similar issues with leaky valves in the house, so that didn't seem to be an unreasonable assumption. Finally, we got down to brass tacks: the estimate. He explained that Hall's is expensive because they are a big company with a lot of overhead, but they were also the best. I didn't really need or want that sell. He gave me the price, which despite the warnings was actually not that unreasonable given similar service I had with my other valves, so I readily agreed. He then started talking about scheduling the service, at which point I told him I was expecting to get the repair done that day, thanked him for the estimate, and said I would need to consider other options. This was not a strong-arm tactic: I was hosting a party the next day and wanted to get this done and dusted. Austin had to go ask for permission, which meant a further delay to the service. Austin was given permission to do the repair and got right to work. We chatted a bit while I was cleaning and he was working, and at one point he assured me that I had made the right choice to repair all of the valves because they were marked as "low lead" and insinuated they were not safe. I did a cursory search online to find this was a typical marking for legal compliance and not a cause for concern, but that the stainless steel valves he was installing were better quality and didn't contain even those trace amounts of lead. In addition to replacing the valves, Austin also adjusted the loose connections in the drain and put up a Junction box for the garbage disposal that had fallen down. He cleaned up after himself and tested to ensure everything was in working order. Payment was easily made with a card, and he was finished just before 6, giving me time to get ready for dinner and arrive just a little late. He did offer to look at the other sinks in the house, but I really couldn't delay any further and declined that offer. Austin did call me once more when I was on my way out of the house to see if the screws had accidentally punctured the outside wall of my kitchen island, but luckily that wasn't the case. If you value upfront pricing and quality service backed by a 1-year warranty, then you may want to consider Hall's for your next repair. If time efficiency is not the priority, I may also do the same. I also prefer a more no-nonsense approach. I would likely also trust them for any installations or major plumbing repairs, as they seem more resourced for bigger projects.

    Advanced Plumbing, AC & Furnace Repair - Plumbing water heater clog air conditioning heating repair replacement HVAC leak sewer smell cold hot toilet sink slow drain plumber

    Advanced Plumbing, AC & Furnace Repair

    (378 reviews)

    When I was visiting my Mom last week. She said her Hot Water Heater…read morewas making a loud knocking sound & the Company who installed it was scheduled to do a maintenance drain & flush a couple days ago but called to say they were understaffed & she needed to reschedule. Well she needed it taken care of now! So, I Googled Plumbing places and started getting quotes. Advanced Plumbing was by far the Best business for her Plumbing needs. No sooner did I hand up with making an appointment, the doorbell rang & there they were Advanced Plumbing employees Jamal & Terrance. They assessed the issue & provided my mom with the best & most affordable solution. They were very friendly, knowledgeable, & fast. They explained what they would be doing, showed her the damaged parts that they were replacing & had it done in no time. They also explained to her about the Warrantee on her product & about all the benefits her new Advanced Plumbing Membership offered. So we would definitely recommend Advanced Plumbing in Vacaville to anyone looking for affordable, friendly, & fast professional work done. Also a Big Thank You again to Jamal & Terrance for your Great Work !!

    !!PLEASE READ FIRST!!…read more I should have shopped around instead of rushing into hiring this company, that's my biggest mistake. I recently had a new washer and dryer installed, and the installer told me my water valves were leaking and needed to be replaced. This was the first company I called because of their high number of reviews, which I now regret trusting. The price I was charged to replace those valves was outrageous--nearly $1,100, and they didn't even bother to repair or replace the sheetrock afterward. For such a basic job, that alone felt excessive. It gets worse. After doing just one load of laundry, my water heater on the second floor started leaking down into the first floor. This had NEVER happened before they worked on my plumbing. I called them immediately, but they couldn't send anyone out until the next day. When a technician finally arrived, I was quoted $4,000 to replace the water heater. That didn't sit right with me, so I decided to get a second opinion. I contacted another company, and the difference was unbelievable. They charged me $2,300 for the same water heater replacement, showed up within an hour of my call, and completed the entire job in about two hours. Out of curiosity, I also asked them what they would have charged to replace the laundry room valves. Their answer? Around $350. So I was charged nearly three times the going rate for a simple repair, and then quoted almost double for the water heater replacement. That's not just overpriced, that feels completely PREDATORY. I strongly recommend getting multiple quotes before hiring anyone, especially this company. I would not use them again and would not recommend them to anyone.

    The Water Heater Man

    The Water Heater Man

    (99 reviews)

    I was looking into getting water heater replaced with tankless. We were constantly running out of…read morehot water and our water heater tank was old. I reached out to Water Heater Man describing what I was looking for. Jay contacted me back the same day and even dropped by. He never tried to outsell me anything. Understood my needs and gave me his honest opinions. Even gave me a good quote that night. I ended up going with them. Jay was AMAZING. Professional and courteous. Install was very clean. I highly recommend him for any water heater needs. Thanks Jay!

    Jay replaced a water heater for us a few years ago. He did an excellent job!! I don't really think…read morethere is anyone who knows more about water heaters than Jay! He does every job on his own so you don't have the issue of talking to one person but a different service person comes to do the work. He does every aspect!!! He pulls the permit. No hassle for you!! He installs each one and knows ALL the codes. He is on time, responsive to phone calls, answers questions with kindness. He is THE guy to go to for a fair price, quality work and backs up his work. Now, here's the real kicker!!!! I have moved and my water heater went out. I called Jay without hesitation. He was so honest, apologizing that he couldn't work on mine as it's in a mobile home and he wouldn't be able to install a new one on his own. But, he went out of his way to help me find someone who would be able to help!!!!! He took all the info and pictures as if doing the job himself! He referred me to Signature Plumbing. They were great. But, the point is, who does that??!!! Takes time to help without asking or getting paid!!! He is a quiet gem of a person and an honest business man!!!!!! Call Jay, the Water Heater Man!!!!!!!

    My Legacy Plumbing - We specialize in many things such as tankless water heater consultations and installations

    My Legacy Plumbing

    (46 reviews)

    We ordered a tankless water heater for our new home in Vacaville and wanted to give local…read moreplumber/SMB a chance in these tough times. Long story short It was an absolute nightmare of an experience stay far far away. We called on a Wednesday and a man named Brandon answered, he was polite on the phone and said he could come by on Saturday at 9AM and install it for us in about 2-3 hours. Brandon arrived a little bit late at around 9:18AM which wasn't a big deal. He began installing it and started testing it out to see if it was working. He told us our water pressure was low and the pipes looked pretty corroded. We didn't have any issues with the water pressure previously and had our home inspected a year ago when we purchased it. He said he would need need to replace a section in the attic where the water heater ran up to because of corrosion. It took him about 4 hours and he billed us for $4200. Basically 4 hours of work on the water heater installation and repairing the corroded pipe. He told us it would take about an hour for the new water heater to have the hot water ready. We tried at an hour and it wasn't hot so we tried again 2 hours later and still nothing. So we called him and told him we didn't have hot water 2 hours after he left and he told us, "the regulator probably just needs to be adjusted or there may be an issue with the tank but if it's still not running by tomorrow then to call again and he would swing by first thing Monday morning because he was busy until then." So we were not trying to be left without hot water for 2 days. So we told him forget it and we'll call someone else who can come sooner. We got a plumber to come out Sunday morning to take a look at what was going on. The new plumber was here for over an hour and told us he couldn't figure out what was going on after testing the new water heater. He asked us if the hot water was working before and if Brandon had done any other work besides the installation. We told him about how he said a corroded pipe in the attic needed to be replaced so he went ahead and did that also. The plumber went up there to check it and noticed that the pipe that feeds cold water into the water heater and been soldered to the pipe that leaves the heater with hot water. So basically the Water heater wasn't getting any hot water and that's why we could only get cold water as you can see in the photo. The plumber couldn't believe that this had been done so he showed us the picture and said we may want to ask for our money back. Once we told him how much we paid he said he would've installed it for half the price... so not only did Brandon the Scumbag charge us double the normal price but he also had us pay him to break our plumbing. I'm just glad he was busy till Monday because I can only imagine he would've kept taking us to the cleaners. We left it as is and chalked it up as a learning lesson especially after the new plumber only charged us $80 to repair the pipes Brandon messed up. Hope you enjoyed our money you piece of crap!

    Later found out that My Legacy was basically being hacked. The man that we did business with stole…read morethe contractors license. Well at least misrepresented himself as the owner. He called himself Brandon. However since the, the true owner of the business and his sleuth office assistant found us, came to our home, and told us the whole story. In the meantime he is helping to resolve the issue with the city and cleaned up the area and it safe.

    Greiner - hvac - Updated May 2026

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