A bit of background 1st, before I retired last year I was a project manager and frequently the team leader for complex remote communication site installations. My standards are fairly high, and believe in quality workmanship and taking care of the customer. Hind sight is 20 - 20 and we are pleased we went with Greiner. If you're not interested in the details below, we will highly recommend Greiner to family and friends if they need similar work done. Greiner completed the Advanced Energy Audit Test Out of the new HVAC system with new ducting and installation in the attic they installed a couple of weeks ago. A dramatic improvement over our 27 year old system that was fully functional, but getting tired. Our home is a 27 year old two story "tract home" and we have always had poor cooling and heating in the bedrooms on the 2nd floor along with fairly high energy bills. We had Greiner do an energy audit of our house ($195) before providing us recommendations and a quote. Although we knew our HVAC system was performing poorly, we had no idea how bad it was until they performed the pressure test of our system. They were unable to pressurize it which indicated a greater than 40% leakage in our ducting system. During the inspection they said it was likely the original plenum below the furnace & exchange unit in the garage was our culprit. After Greiner provided us the results of the energy audit and their quote I did some research and obtained other quotes for comparisons. The comparisons were not 100% perfect because of different brand names and such, but really - really close. The reason(s) we chose Greiner were; they participate in the Advance Energy Program which meant potentially higher rebates from PG&E over Standard Rebates, their price included the test out including the CAS - CAZ test that others charge for, their additional year of no cost labor warranty, and they are a medium size company that has been around for awhile and is not too far away. Their cost was a tad higher than other reputable firms for a "turnkey" job, and higher than "We'll replace the units" quotes. The installation took three days to complete and I would have been proud to have their crew working for me when I was managing work crews. Once the old units were removed it was clear that the plenum was poorly designed and not sealed when the house was built. Their team also went further and found additional problems that to me were not clearly called for in the contract. I was impressed that they looked for, found, and repaired difficult to find additional problems without "checking" to see if they should take care of them. Before contracting with Greiner I asked them "What are potential or possible oops that may be discovered during installation work that is not covered in the contract?" Their response was "Anything we touch is covered" and they sure followed thru. The test out today confirms that our leakage is now less than 6% and last Thursday when we 1st used the AC system it worked great and we may now have to actually reduce the air flow a bit for the upstairs bedrooms. We also know what our rebate should be under the Advance Energy Upgrade. It is quite a bit higher than the Standard Rebate which more than covers Greiner's just a tad higher cost. Is Greiner perfect or walks on water? Nope, but it has been a long time since I've seen folks try so hard to exceed what the customer needs and wants. read more

Job involved removing an existing 18 yr old tankless water heater which served as a "booster" to the old bubble style collectors. Since I was installing a new roof and wanted the new roof to have clean lines with the old solar removed; needed the old 'loop system' closed off and replaced by a modern 'Condensing' Rinnai Tankless which had received a top rating by a leading Consumers magazine. I contacted Greiner as they had a solid reputation, had an excellent guarantee on their work as well as product and were local. Office staff was friendly and helpful in coordination of job. They rally mean "How can we make you smile today?" Customer service by Roger in sales went smoothly and he took ownership of the job taking into consideration my needs and plans. Installers Ernesto and Jason arrived on time and with friendly, professional attitudes . . . they worked as a finely-tuned team to insure that the installation went smoothly and everything tested before they cleaned-up the work area and did a double check to make sure that everything was properly completed. They were very careful with my property. I cannot say enough about how well they handled the job. All the folks involved deserve a 5-star rating. My only objection was with the pricing of the product itself (not the labor which was very fair): I felt Greiner could have been a bit more competitive. As a retiree there was a bit of sticker-shock; so there was a trade-off: my piece of mind dealing with a rock solid company and product pricing. Other than that I would have rated the entire experience "as good as it gets"! read more

Greiner Heating and Air is such a professional company, and their employees are no exception. Kody serviced my heater today, and he was exceptional. He was very presentable, and extremely informative on what was being serviced on my heater, and things that I should keep an eye on. His customer service was absolutely outstanding! Additionally, the company called me ahead of time to let me know that the service tech was on his way, and who would be coming to my home. I have been using this company for 15 years , and I have always had a great experience with them. 11 years ago I actually had to have my heating and air conditioning unit replaced, and I did get three estimates, and I went with Greiner. This came just before the holidays, and I was able to get a slight reduction in cost, by replacing both my heating and my air conditioning unit, however, I didn't have to replace my air conditioning unit until 5 months later, when I would be needing to use my system. They made it very easy and did the best they could to accommodate my needs, as well as my pocketbook.. Therefore, I was able to pay for the heating system in December, and then the balance of the installation for the air conditioning system when I had it installed in May. I am glad I did, as they scheduled me very quickly, and did an amazing job with the installations . I highly recommend this company for your heating and air conditioning needs. C. Fike read more

We needed to replace two 3 ton HVAC systems from the early 90s. As is typically recommended, we got 3 quotes from Jaguar in Sac, Blakes, and Greiner. Although the pricing was close between Jaguar and Greiner, Greiner was the best value, and offered the best rebates. That being said, at the end of the day, even if they had been close but a bit more expensive we likely would have gone with them, as their team is incredibly professional, offers a range of solutions and is creative in working toward what makes the most sense for your home. Nathan, who has been with them for a couple of decades, was incredibly responsive, answered all questions (and I had a ton, as I did a lot of "Dr. Google" research") and offered solutions. We ended up going with electric heat pump systems (Mitsubishi in our case) however they offer various options of manufacturers. We were able to move to a 4-5 head mini split system downstairs because our ducts under the house were trashed from years of neglect, and a ducted electric heat pump system upstairs. Installation was timely, efficient, clean and they checked back to make sure everything was just how we wanted it. Ultimately, a very solid company that knows their trade, won't box you into "what they want to sell you" and has top notch installation team and customer service. Would recommend without reservation for what is ultimately a very important purchase. read more

As there are two sides to every story, the contract did not exclude the replacement of the coil so it was a big surprise to me that while the new furnace was being prepped in my driveway, I was told that there would be an additional $1,700 for a new coil. Yes I was pissed off at Greiner for their deceit and if they are so butt hurt that a few cuss words that were appropriate hurt their feelings enough that they simply walked off the job then shame on them!!! I also want to say that Dave with Greiner said he was cancelling my service agreement that was contracted last year. I read the agreement and no where does it say that Greiner can cancel the agreement, so all you out there tell me just how fair this company is. I am a contractor myself and never in 40 years of business have I walked away from a written agreement no matter how upset the customer was. I always completed my work and honored my contract!!!!!!!!! read more

Our old Heating/AC system wouldn't even turn on so we called Greiner for a very over due servicing. Carlos got it running and told us it would probably make it through the cold season, but we should start planning on replacing it before summer. Not surprising news since it has been limping along for a while now. I asked Carlos to give us an estimate so he crawled into the attic, looked under the house and presented our options. We decided to go ahead and get it done instead of waiting for next year and asked them to add new insulation while they were replacing duct work in the attic. Rueben headed up the installation with Chris, Tuan and John. They went above and beyond to protect the house from all the mess. The entire crew was nice and professional, which I expected for that kind of money. The real bonus was I felt they took pride in their work and cared about proving us with the best service possible. read more

Called Greiner because our AC went out in the middle of a heat wave(shoot me please!) Thank God Greiner could send someone out the next day. I called Greiner mainly because I loved the commercials and the fact that the business is family owned. I received a call about 20 minutes to confirm that the service guy (Pierre Ruff) would be on the way. Being a girl is challenging during times like this because you are letting someone you don't know into your home and you have to trust what they say is wrong. From the start Pierre had a great disposition, very professional, kind and knowledgeable - I felt comfortable and in good hands. He went right to work and immediately figured out what was wrong and fixed our AC. Pierre went above and beyond taking the time to clean our filthy unit and helped me determine the correct size for our filter. Thank you Pierre, I appreciate you!! read more

I would also like to add that nearly every General Contractor I have spoken to warns against using Greiner because they have a habit of overcharging people. If you don't like customers getting angry and verbally abusing you then don't scam them! would you rather I sue you because you backed out of a contract? maybe we should take this matter to court regarding this furnace install that didn't happen because you idiots walked off the job? Let me know how you want to handle this Greiner, or have your legal dept call me (916) 202 4952 you wasted nearly a month of our time. Where does it say you can cancel because you don't like my attitude? Folks beware! If you get angry, or question Greiner's work they will walk off your job! they will leave you holding the bag literally. This is a perfect example of a company that will screw you over and not care of the consequences. read more

Returning customer here - Had Diego, Noah, and Armando out to install my tankless water heater a couple years ago. happy to say it's still running strong!! We loved the work so much we chose Greiner ( who now does electric service panels and whole home surge protectors) to do our solar project. My oh my what a job they did!! The crew Richard, Savon and Nessir were super helpful and knowledgeable about the work being done and took the time to make sure my house was well taken care of. The crew showed up on time and walked us through each detail and kept us informed along the way of any changes, and to my delight, just where I wanted things to go, which I felt was a nice touch. The outstanding customer service is what sets this company apart and I'm proud to say my solar system, and tankless!! We're installed by Greiner heating air and electric. Thanks again! read more

Greiner's transformed my breathless ducts into Certified High Performance HVAC ducts. A regional expert in best practice HVAC ductwork told me that in my area, "They [Greiner techs] are the ONLY ones in the statewide Energy Upgrade Program who have performed at this level this year." So I talked to Greiner. Everyone I dealt with, from first inquiry, to bid and planning, through execution, was helpful, pleasant, positive, and human. One tech told me she loves Greiner, which speaks volumes. Result: No more ice box effect in the back rooms. The house is more evenly warm and the heater runs less. I highly recommend Greiner's for ductwork. Should I mention that I contracted for reworking two ducts lines with three vents, but that the Greiner people, seemingly out of simple good will, rebuilt the other two shorter ducts too? What a gracious gift. read more

We had our 25 year old A/C system replaced after receiving a reasonable quote from Greiner. The day before the appointment we were contacted and told they would be showing up between 8:15 and 8:30. The next day, Dade and Matt arrived at 8:20. After introductions, we gave them a brief walkthrough, with them explaining exactly what they would do. They quickly went to work, separately and together when needed. After completion of their task, they again explained what they had done and asked if we had any questions. From past experiences (not with Greiner), I know what it's like to have work done at your home and wonder if these guys are ever gonna get out of here. It was refreshing to see two young individuals who know what they have to do, do it quick and be outgoing, courteous and professional while doing so. read more

Had Greiner come out about a whole house fan that was making noise. Since I now have mobility issues, I could not get up on the ladder to check it myself. Since I have gotten used to using it in the evenings instead of the A/C, I agreed to the $89 house call. Turns out a piece of foam had come loose and was interfering with the fan. Took the Tech less than 5 minutes to fix. Very expensive piece of foam! UPDATE: Danny, from Greiner, called me. He said the Tech was possibly misinformed about the cost of this service call. Danny was very nice and said he would refund my $89. I have no complaints about the Tech. He was very professional, wore shoe covers, and explained other services that Greiner offers. Feeling confident so am getting an estimate for another product from them. read more

Their crew just wrapped up with installing our new hot water heater. Super professional - on time, very clear on communication. A few highlights - - Kody came out and did a quote on New Year's Eve when our hot water went out. - He was on-time in the morning of the installation to get our contract signed and clarified the pricing and unit information. - I spoke with Debbie on the phone to ask a few questions about timing and water shut-off. She answered the phone is the most pleasant way. - The installation team - Dade, Noah and Diego - were prompt and professional. Even going so far as to help us with an outside tree that had fallen over because of wind. Really wonderful to work with a team of professionals like this. Already got a quote from them on solar because of their work... read more

Greiner is great!! We had an AC unit put in at our Vacaville residence from Start to Finish the work was first rate. Nathan came out and took a look at our existing unit. Agreed that it was time to replace and outlined our options. He did not try to sell one over the other, explained rebates and potential savings etc. I consider myself an information guy. Meaning give me the facts and let me make an intelligent decision. Nathan did that exceptionally well. All employees that came out for install were very polite, used boot covers every time they entered the house (even though I told them they didn't have to). Throughout the process they kept me informed. Called me before they showed up and downright made me believe in customer service again. Thanks Greiner, KEEP UP THE GOOD WORK. read more

I hired Greiner to replace my HVAC system and do some upgrades in my forever home. And let me tell you, these "local guys and gals" are the BEST! From the uniforms, vans, all the way to how they answer the phone, keep you informed of their location, and superior craftsmanship and attention to detail, I am truly impressed ... once again. Sarn, Robert, and Edy worked all day and they were very courteous and professional. Watching them coordinate and helping each other out, you'll notice they have remarkable teamwork and pride for their work. The system they installed was excellent, the ceiling intake work looks amazing, and they made sure everything was clean in the end. I'd definitely hire them again for my next HVAC upgrade. Thank you Greiner!!! read more

Our air conditioner ( 19 y/o), decided it id not want to cool the house on the hottest day of the year. Ashley made an appointment for Friday, and guess what? When Danny found out we had a handicapped son at home, they actually called back the same day and fixed it with refrigerant to buy us some time. He had also with him a very nice gentleman, Rick, who was just as professional. I would certainly have them back to replace our system. I will ask for them back by name. Very polite and used shoe protectors to protect our carpet!! Very polite and considerate of others. Well done Greiner, and Thank You!! Review states we are from SF, but we live in Suisun. Ron and Cindy S. read more

We had the pleasure of having Anthony for our technician today. What a gem. This guy really knows his stuff. He was so pleasant, and professional. We have been having problems with our A/C and after two previous Greiner visits, "He" Anthony fixed the problem.Just to clear it up Anthony was our 3rd technician. Now We love Greiner and they stand behind their work so I believe the first two technicians did their best to help us. You had to dig deep to find this problem and thats what Anthony did.I can see this young man climbing the ladder. Any employer would be lucky to have him.I don't have facebook so I hope this will post on the internet. read more

I recently had a new AC system installed and been having problems after a week, of cooling my home. It would not get below 75 degrees. I have had 3 different company come out and not able to fix the issue. Dylan went above and beyond in troubleshooting my A/C unit. He found out there was multiple ice buildup in different location. He de-iced everything for me. Also found out that the ducking was not correct upstair. I give Greiner 5 stars for doing what no one else could. He took the time to make sure I was getting cold air and explained everything to me. I will be going with Greiner for all my AC needs. Thank you very much, Lucy read more

My semi-annual heater inspection was performed today, by Cody McCauley. He arrived on time, greeted me with a smile and went to work immediately. He was very thorough in his inspection of my heater, explaining his findings as he inspected tested my unit. Upon completion, he explained, in detail , what he had done and his suggestions/recommendations for existing parts that I should either replace or repair. Cody ensured that he left the work area clean and neat. It was a joy to have such a caring and professional individual in my home. I look forward to having Grenier continue to provide my A/C and Heater service. read more