Get matched with top tankless water heater installers in Mahwah, 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."

"It's always difficult to get someone who is willing to come by to fix those little annoying problems you have, but not Tom. I had 1 leaky faucet and 1 frozen faucet(due to hard water). Tom came explained what needed to be done and I hired him to fix it. Very pleasant to work with. Also cleaned up after all the work was done. I have his card now and will not have to stress when I need a good plumber in the future. No job is too small for Tom!! He will be back in New Year to install a tankless water heater."

"Very knowledgeable, he had all the parts and installed them correctly."

Based out of Mahwah, Red Van Plumbing & Heating delivers comprehensive commercial and residential mechanical solutions. We specialize in precision gas piping and advanced water treatment and purification system installations. Our certified technicians expertly manage water and sewer main installations, replacements, and repairs for both homes and businesses. We keep your property comfortable with complete sales, installation, and repair services for gas and oil boiler or radiator heating systems. Additionally, we are experts in modern, energy-efficient tankless water heater installations and repairs. Trust our commercial and residential teams for prompt, dependable plumbing and heating craftsmanship.

"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."

"I called All Weather to give me a quote for replacing my gas boiler. They set up a time for their salesperson to come over and give me a quote. The appointment was only a few days later and a man named Joe showed up on time. He spent some time with me, I told him I was looking for a new boiler and a new hot water heater, but I wanted to see what options I have (since I was debating going to a tankless water heater). He told me going indirect hot water tank is the best option and they always use this brand that's the "best one out there". Even though he may have been right, he didn't tend to my questions or concerns very well. I felt like he was getting annoyed that I had questions and eventually I just let him run the show just to get him out of my house faster. Especially when he gave me a quote of $8600, it was much higher than I was anticipating. One thing I really didn't like was when he said I'd have to get a permit since I live in an incorporated village, which would be an extra $500, meanwhile I already had another plumber tell me a permits only $200. So I went with another company. So even though I can't rate All Weather on their work quality, I didn't get a good feeling from their salesperson."

"Ray and his crew installed a new gas steam boiler and water heater. The work is fast,clean and professionally done. They came back a few days after to re-check that everything was working properly. The price was reasonable compared to other higher priced bids.Overall I would recommend the Red Van company for future projects."

"I had a great experience with Premier HVAC replacing my old and leaking water heater. I was impressed that they were able to respond quickly and start working on the same day as my call, especially given the severely cold weather and other plumbers being busy replacing freezing pipes. The plumber was able to work with my very tight kitchen space and narrow hallways, and without having to remove the countertop in my kitchen. I am satisfied with the installation and would definitely consider Premier HVAC for future plumbing needs."

"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."

Family-owned plumbing, heating, and cooling company proudly serving Northern New Jersey and Rockland County, NY. Our licensed and experienced team specializes in plumbing repairs and installation, water heater services, HVAC heating and cooling systems, water softening and filtration, drain cleaning, sewer camera inspections, and a full range of home services. Whether you need an emergency plumber, a furnace repair, or a water filtration system installed, we're here when you need us most. We treat every home like our own — delivering honest work, upfront pricing, and guaranteed satisfaction. Call us today for fast, reliable service from a local team your neighbors trust. NJMP#36BI01371200 Rockland License #P-24-281