Water heater pilot fire was out last night, though it could have been fixed by replacing with a new thermal couple, hack it was a pre2000 model this decided to replace it. Quote is reasonable, and Joseph helped me to select a thinner model based on the limited space, that consideration was the reason which made me decide to go with them. Omar did a great on the installation, nice and clean, all pipes cables pan are nicely arranged, i approved it as an hardware engineer. So I called them at 8am, and all were completed by 1130. What else can I ask for? read more

Quick and efficient! Joseph was able to help out within hours and got things fixed! Fair price and well done, highly recommended! Joe the plumber was also great at helping take a look at the seized up faucet! read more

Efficient Water Heaters - New water heater installed, had to get around furnace piping - Water Heater Installation/Repair Near Me - San Jose, California

Call the company last night regarding gas water heater replacement, Joseph answered all my questions and gave me his professional recommendation. This morning around 10, we have everything done already! Very Efficient! Great service, I strongly recommend it! read more

They helped me to install a new water heater with latest building code. I called a lot of plumbers. But all of them told me they can't apply for permit for me. Or the work with permit included is much much more expensive like 2 times more than regular price like they are not familiar with that. Efficient water heater give me a reasonable price. It is more than no permit price. But it is not ridiculous. The work is done well and they called me for the instruction of getting permitted. A month later, city permit granted. The thing not good is they are not patient enough in the call. But in general, the work they are doing is very professional. So I am still give 5 stars. read more

Installed a Bradford White water heater. Quick and efficient install. Quick reply from yelp project

efficient water heater were the first to respond to my quote request. Super fast super quick to show up on a Friday night. They came to install a new water heater on time and finished on time. . They took the old water heater away for disposal. Overall, great experience all around. Thank you to big Joe and Jesse read more

I called Efficient Water Heaters for my Rennai water heater maintenance. Joseph came on time and did the service. Great work! thanks!

On-time installation, very professional, standard rheems xg40 installation as described. They took good care while doing the installation and didn't leave any mess behind. Good pricing! Would recommend. read more

Our tankless water heater [a Navien] wasn't outputting hot water unless we had 2+ faucets on. Our technician Omar came, and helped us promptly in under one hour replace both the check valve, and flow sensor. He also helped us figure out why it broke in the first place (sediment build up) and how to prevent it. Overall the service was quick, competitively priced, and friendly. I'd call them out again, and would highly recommend them for anyone looking for water heater service. read more

Very disappointed in their service and lack of honoring their work and warranty. After their diagnostics and I followed their recommendation of repairs, I paid for the repairs only for it to not fix the problem, which they said there would be a one year warranty. Upon the same day, I informed them their repair did not work and they responded that I need additional work done that would double the cost of what we already spent and to top that, they responded that I was trying to cut corners by not spending more money with them for repairs, while none of that information was shared as part of their diagnostic and recommendation. Read all the negative reviews and the way he responds to customers. read more

Our water heater stopped working late one night and when I checked on it, something looked very wrong. The owner, Joseph answered my call and walked me through some questions. He quickly figured out the problem from the pictures and was at my house at 7am the next morning. He was able to contact the company, get the warranty info and got us a new machine the same day. He sent Omar out to install it for us and Omar showed me how to care for it and they offered a service guarantee. We had hot water again by 1pm and a new system with correctly done piping. I could not thank them enough! I highly recommend them and will use them any time we have plumbing issues in the future. read more

Joseph and Omar are best in class. Our water heater went out at nearly midnight and Joseph was corresponding with us to get us taken care of by the next morning. He and his crew showed up promptly the next morning and replaced our water heater seamlessly and had us back up and running. Highly recommend this company - they are truly customer first! read more

Worked with this company 3rd time. Owner, Joseph values customer satisfaction. Faster response on communication and service as well. Omar helped to replace thermopile & gas valve to bring water heater in working condition reasonable price. read more

No surprises here! I called with a request for maintenance for our Navien tankless water heater. This shop was listed as a local Navien service provider on the Navien website. Joseph in the office communicated well before the visit and scheduled the work for the next morning. Omar was friendly and conscientious, got the job done and invoice was right in line with the initial estimate. Plan to use Efficient Water Heaters next time we need service/repair. read more

Happy that Joseph responded to my message early Sunday morning so I can get my hot water back in few hours. New water heater installation smoothly. read more

Great quality work! Omar is amazing technician. I would definitely use again. Minus 1 star for over paying what I was originally quoted. Just get it in writing. read more

My water heater died and Joseph was able to come by the same day, replace the failed part, and 30 minutes later it's fixed! Wonderful service and support! I will definitely call them again the next time I have an issue or need a new water heater. read more

Efficient Water Heaters - Water heater - Water Heater Installation/Repair Near Me - San Jose, California

Very quick to respond and set up a time to do some maintenance on our tankless water heater. Was on time for the appointment and very knowledgeable in explaining clearly what work needed to be done and help answer all my questions. read more

Been using this company for years now. Always great service, best price and fast response!

My 9 years old water heater didn't work on a Sunday morning. I tried to reignite the pilot light and flush the tank but none of them work. Requested Yelp help and Joseph was one of the first to respond. Joseph and Ray came out to my house about an hour or so later. Turned out I had a serious leak and had to replace the unit. Joseph and his team were very professional and quick in recommending a new unit and installed in within 1.5 hours. Such a quick turnaround on a weekend no less. I'm highly satisfied and will recommend Efficient Water Heaters. read more

Had tankless flush done. Will definitely be my go to for my tankless maintenance from now on. Great communication and service and price is competitive. read more

Joe and Frank came and installed our water heater today. We called them this afternoon and they were able to fit us in immediately. Very efficient and fast. read more

Joseph was very helpful with servicing my tankless water heater. Was on time as promised and finished the job in time. Also, spend extra time with me on educating me about the water heaters and how the job should be done right! Highly recommend Joseph and his company, definitely going to stick to him for any of my needs. Excellent customer service. read more

Went on site and installed a new water heater in a few hours today. Did a great job. Got the hot water working for everyone. Thanks!

Since Efficient Water Heaters did efficiently install new waterheaters in my two rental units over the last two years at very competitive prices, I asked its owner, Joseph, to install a new waterheater in the afternoon of 12/23/25, right after my tenant reported that it was leaking. Since the next day would be the day before Christmas, their employees were either on vacation or fully booked. Joseph agreed to install it himself at 7AM on 12/24/25. I deeply appreciate Joseph's commitment to helping the customers promptly and will remain a loyal customer. read more

I highly recommend efficient water heaters. They were quick to diagnose the issue with my water heater and explained everything clearly and professionally. When they determined the entire unit needed replacement, they provided a fair price and completed the installation the very next day. Their efficiency and professionalism made what could have been a stressful situation much easier to handle. read more

These guys are really efficient. They were the first to respond to my quote request at 10 PM. They were the first to call me back again at 8 AM to respond to my response. They came to install on time and finished on time. I replaced my tank water heater and added a water softener. I compared it against the competitor and found that the price is great. The recommended parts were also of high quality. Joe and Anthony came to install, and they were very considerate with the water disruption. They took the old tank water heater away for disposal. Overall, great experience all around. read more

Absolutely fantastic. Friendly, professional, and punctual. Provided a quote over text messages with photos of existing leaky water heater. Same day service and a reasonable price to boot. read more

Omar replaced my leaking water heater with a new Bradford White gas water heater with an additional expansion tank. He replaced all water lines, water valve, gas line and secured the new heater with two solid metal straps. He does top quality work and answered every question I had with thorough knowledge. The job was estimated to take 3 hours, and he completed it in 3 hours. I highly recommend Efficient Water Heaters for top quality workmanship, flexibility and reasonable prices. read more

Had an outdated water heater that stopped working, and Omar came out the next day and did a fantastic job at installing and explaining what went wrong with the old unit. Very happy with the results! read more

I hired them for install a new water heater. They respond even at night time and schedule the installation in the next morning. The prices is very reasonable. Technician Omar is friendly, patient, and skillful. I strongly recommend their services. read more

Efficient Water Heaters - Water Heater Installation/Repair Near Me - San Jose, California

Joseph gave me a call right away right after I submitted the quote request. The pricing is fair. The workmanship is great. I am glad that i went with Efficient water heaters. I highly recommend Efficient water Heaters if you need water heater related services or replacement. read more

I had a leak occur in the middle of the night and this company was the first to respond out of the four I contacted around 5 AM. They were able to come around noon and get everything resolved within 30 minutes. He educated us on the system and made recommendations to help improve the safety and efficiency, but didn't try to hard sell. I will consider them for when that time comes. read more

Old water heater (Bradford White) needed replacement after 15 years. The company that installed the original water heater had a rather high estimate. Called Efficient Water Heaters this morning and their price was much lower. Installation was done quickly and the technician did a very neat job. Definitely recommended. read more

Efficient Water Heaters - Water Heater Installation/Repair Near Me - San Jose, California

This company was honest and quick to respond. They installed my water heater according to California code unlike the people who previously installed the existing heater (AAA Affortable Plumbing). And they provided me with all the cost details along the way. Did I mention they removed and installed the heater, correctly, in less than 3 hours, one man. read more

Efficient Water Heaters - Old installation - Water Heater Installation/Repair Near Me - San Jose, California

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First to respond when Yelp sent the blast request to replace my broken water heater after normal business hours. Joseph and his team offered to come first thing in the morning and kept to every word. Showed up early, replaced the water heater, flex hoses, redid my EQ straps and took away the old one. Area looks better than before and heater is a big upgrade. Super easy to work with, professional and reasonable. read more

Fair pricing and professional installation. A little hiccup in the initial scheduling but all worked out. Replaced my 15 year-old GE unit that failed with a new Bradford White 40 gal unit. Happy with results. General advice, do independent research first. Know and insist on make/model you want, and the price you want to pay, then call these guys for a hassle free professional installation and enjoy your hot water. read more

Efficient Water Heaters - Water Heater Installation/Repair Near Me - San Jose, California

He promised Rheem heater, brought another. Quoted a price, than added a something to catch the water and quoted $100 for it, 2 faucets cost $200 , was a very smooth used cars salesman You claim to talk with my husband, he is dead for over 23 years, the numbers I gave were the prices you employee gave me. You still get a bad review from me read more

3 stars is for the technician who installed the water heater. I have to take 2 stars away due to his Boss, causing tension before he started working. I would give "0" star for the communication tactics of Joseph, the owner. His communication via telephone is awful. He did not take time to finish the conversation and always ended the conversation with, "I am busy, I am in the middle of "something"." So, I hired another company and scheduled the installation for the next day. I wanted to give Joseph another chance. So, I texted him, around 4 or 5 AM, early in the morning. He responded immediately. His good points: 1) He agreed to do what I was asking him to cover, in addition to the installation of the heater. 2) He locked the cost for installation of the heater over the phone. I took 2 stars away 2. Because, 1) The locked price did not include all of the discounts and different pricing he was offering me over the yelp messages. 2) He was very aggressive and did not end a telephone conversation "normally" but said "busy" and stopped the exchange of information abruptly. (I named him hanging upon me as one of his tactics to negotiate pricing.) 3) He told me that he will come to my home to install the heater. But he did not and sent one of his employees. 4) His employee was not aware of everything what Joseph and myself agreed upon over the phone. He ended up spending time discussing with Joseph instead of starting the installation right away. The technician had no clue and refused to do extra stuff. 5) Joseph caused tension between us, the Technician and myself, in the beginning. 6) After starting the work, the technician calmed down and did everything I asked for. Since I already cancelled the previous company and embarrassed to ask them to come over again, I agreed for Joseph to come for the installation. I also told myself, as long as his installation is done well and the water heater lost as expected, I should overlook his aggressive behavior. As for as the installation goes, it went well. I waited for a while before writing this review. The date of installation was Dec. 18th 2024. I will find the technician's name and post it soon. He deserves to be recognized for his workmanship and accommodating my requirements. read more

Efficient Waters cleaned and descaled our Navien. They were efficient and professional. Scheduling was easy and they were available on a Sunday which was great. Highly recommend! read more