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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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    19 days 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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    2 years ago

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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

    4.9
    (840 reviews)

    After getting a very high quote from a major plumbing chain, we decided to contact Water Heater…read moreMasters. We had an absolutely fantastic experience with Water Heater Masters. Alex sent our technician, Rojo, who helped install a new 40-gallon gas water heater in our indoor utility closet, and he was incredibly diligent, professional, and efficient from start to finish. Installing a tank in an inside closet can be tricky, but Rojo handled the entire job seamlessly in just 2 hours. He replaced everything with high-quality components, including: * New hot and cold water flex lines * A brand new water shut-off valve * A new gas flex line and sediment trap * Fully reworked earthquake straps (to meet California safety codes) * Properly updated T&P line and venting He also took care of the removal and disposal of our heavy 18 yr old tank, leaving the utility closet completely clean. If you want fair pricing, expert specialized service, and a technician who respects your time and home, call Water Heater Masters and ask for Rojo. Highly recommended!

    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

    Hall's Plumbing

    4.6
    (222 reviews)

    Excellent experience. The technician, Brian, showed up early. It took 5 minutes to diagnose the…read moreproblem, due mostly to his 25 years in plumbing! My tankless water heater circ pump had not been hooked up properly and now needed to be replaced. He offered to order a new circ pump or allow me to replace it. t. I really appreciated his approach. Hall's getsmy call next time I have any plumbing issues!!!

    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.

    My Legacy Plumbing

    My Legacy Plumbing

    3.7
    (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.

    Ambrose Solar

    Ambrose Solar

    4.7
    (268 reviews)

    My husband and I dug in our heels FOREVER, when it came to getting solar. There were all kinds of…read moresalespeople who came to our home on a monthly basis, and we just never had a real peace about being able to trust what we were being " sold", or told. My parents purchased solar from a HORRIBLE company that sounds a lot like 'SunFun'. After they passed away, and the house was sold...we were STILL making the monthly payments for over a year!!! That SunFun organization REFUSED to transfer the solar to the new homeowner, and eventually stopped taking or acknowledging our calls. It wasn't until we had to threaten the new homeowner with a lawsuit that SunFun finally transferred ownership. Due to this, we could not trust any of these solar companies...that is, until Kevin Bedard came to our home, and explained everything in great detail to my husband and I. He took the time to hear about our concerns, and he showed us how he truly cared. That same week, we spoke to two other families who shared their positive experiences about Ambrose Solar that made us feel that we would be in great hands. We had FINALLY FOUND A PEACE about getting solar on our home; KNOWING we would be in good hands, and we were ALL IN. It's been six months now, and we are beyond pleased with our solar panels, and the two Tesla batteries we have purchased. We are true fans, who have NOTHING but RAVE REVIEWS for this company. If you don't have solar, or if you need to add solar, Kevin Bedard is your man! and Ambrose is your company. Every employee has been amazing and helpful. In a world where customer service has taken a dump, this company has remained a class act. So again...if you are considering solar, call Ambrose, and tell them Albert and Rhonda sent you.

    My project is now finished and it's been about 6 months turned on and functioning- I'm still so…read moreglad that I did this with Ambrose Solar. Any home renovation project has bumps, and this one had its fair share: after initial install they monitor the systems production remotely to see if it's doing what it's supposed to/expected to, and my system was initially under-performing. They caught it and sent out a team to problem solve it, which took a couple tries, but they didn't drag their feet, they kept on it and kept at it and got it resolved. It was no fault of theirs, just a technology glitch. Core fear was that they would give up after a couple failures and leave me following up with them to get it done, but I never had to worry about that. I also did not end up liking where they placed the control box- it was something that was going to make future maintenance of my house trim problematic down the line. They willingly moved it up a few inches for me (and my only complaint was the team that did that didn't patch the original hole as efficiently as they should have. If I had understood the box placement better on the first pass that would never have happened, so this is a bit of a complaint of my own making.) Jon Landsman, who sold me the system, stayed with us the whole time tracking the project, checking in, and following through on every detail, every question, every concern. He never made me feel like the demanding diva that I am, was always prompt and gracious! The bottom line is that start to finish, even with a few bumps in the road, I have zero question that this is a company that legitimately cares about doing what is right. The culture of deeply valuing customer service that they have built is unmatched by many businesses these days. I am SO pleased, and SO impressed, and I can promise that you will be too!

    Greiner - hvac - Updated June 2026

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