Get matched with top tankless water heater installers in Alpine, NJ

"Ralf and Peter provide exceptional plumbing services. They happily and intelligently answered all of my questions and concerns about our sixty year old heating system. Ralf and Peter transformed our heating system and brought all the components up to code. They also did a beautiful job of installing our new water heater. I highly recommend Ralf and Peter of Ralf Maresca Mechanical. Their pricing is reasonable and their work is outstanding."

"We had several different technicians working on installing a new water heater in a crawl space. There were several different unexpected occurrences that arose, but the guys were great. They were respectful, curious, helpful, understanding, knowledgeable and extremely patient explaining our oppositions. They were responsive and prompt to some unexpected situations. Highly recommend them, I'm giving the technicians ten stars for their professional and respectful work ethics."

"Outstanding service, start to finish. Professional, courteous, constant communication. Isha from the home office was in constant contact - phone, two email confirmations, and texts. She called to ask if the service could start a bit earlier, which was fine with me. Alex arrived promptly, put on shoe booties before entering the house (not necessary here but a nice touch). Alex was outstanding. Young fellow with many years experience, and it showed. He explained each part of the task as he went through it, and answered my many questions related to other potential work I brought up. Getting the anodes out of the water heaters - first time replaced - was a bear. He explained he had to get another socket wrench to loosen the anodes - the ones he had did not fit properly. No charge for that time, which though I expected, has not always been the case in my past experiences. Anodes were locked in tight, and took a while to loosen. Doing one water heater at a time, they finally came out, encased in calcium deposit. He then screwed in the replacement anodes and locked them in. Alex completed all the work, put everything back together including the fans on top of the units, tested, and re-tested. Continuing to explain each step. He took pictures of the work for the invoice, ran me through the details again. Everything done on his tablet computer; I received an immediate email receipt. Excellent work with knowledge behind it. I have an external faucet which needs repair, and may be looking for a whole-house water softener. When time comes to replace the water heaters, Advanced Pro will be at top of my list."

"They were great, they were very efficient, courteous, responsive everything worked, the water heater ignition went out, but they came back and fixed the ignition immediately. They were reasonably priced compared to other quotes that we got."

"Very professional, also set an appt for them to come and look at our boiler for repair or replacement."

"Travis and Elvis were very professional on the phone. Travis provided detailed information and answered all of my questions to better help me understand between options when I was choosing a new water heater for my home. Travis provided me with a free estimate and stayed within the price range we agreed to when completing the job. The water heater was installed in a timely manner. I also received a follow up phone call to check how the water heater was working and if I had any questions which I appreciated. I would definitely recommend hiring this company and plan to use them again in the future."

"They did a fantastic job, however I believe the labor cost was a little steep. And they should share the maintenance on the water heater with the customer."

"We have used Gene from Preferred Plumbing on several occasions. We had a water heater replaced and multiple faucets, hose bibs changed or repaired, and drain / sewer clogs. Gene was responsive, courteous, and explained the issue and required work clearly. The work was completed without issues and reasonably priced. I recommend Gene (Preferred Plumbing) for any plumbing issues / work."

"6/8/26 review update I had them change out a frost-free outdoor faucet that had failed. They charged $1000. I had a second outside faucet. They gave me an estimate of $1600. I had another company do the same job for $500. Be very careful about hiring 1-800 Plumber. My advice is to shop around. Their pricing was way above the market price. Unless you are really wealthy and $1000 does not mean anything, I would avoid this crew. They did an excellent job but they are a pack of theives. They charged over a thousand dollars just to replace a single outside water faucet."

"Had a gas leak in my mechanical room next to my boiler and hot water heater and M.L plumbing came and tested the lines and found the leak and fixed the leaking pipe.Thanks M.L plumbing for job well done and at a very reasonable price👍."