Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Commack, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Tankless water heater installers in Commack

Avatar for Herber Plumbing & Heating Corp.
Herber Plumbing & Heating Corp.
4.7(
206
)

Serving Commack, NY and surrounding areas

Approved

In business since 1971

Free estimates

Emergency services offered

"Great. They showed up on time Wednesday morning; done and gone before noon. Both the water heater and the garbage disposal work really well; they took the old stuff away. Work was professional."
Response time12 hrs
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Excellent Plumbing & Heating
Excellent Plumbing & Heating
5.0(
16
)

Serving Commack, NY and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Excellent Plumbing was fantastic - he installed a new faucet, vanity, and water filter for me. Super punctual, really professional, very communicative, and paid close attention to detail. Everything's working great. What really stood out was Joe's dedication. He came back to check on the work and found an unrelated issue with my kitchen sink (which was already there). He gave me some great tips on how to fix it. I highly recommend Joe and Excellent Plumbing & Heating for any plumbing work. He's super skilled and has awesome customer service."
Oil to Gas Conversion
Response time3 hrs
Response rate99%
Recommended by68%of homeowners
Avatar for Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
4.8(
197
)

Serving Commack, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"I called Varsity on a Sunday night when I realized I had no hot water . It was the day we had the snow storm. The next morning Sean arrived to access the issue with my very old hot water heater. He was extremely knowledgeable and gave me my options. Within a short time Jake and Anthony joined and my new water heater was installed and working. No mess , no stress. They were amazing. Sean even shoveled the skirt of my driveway when the plows came and blocked me in as I was trying to get to work. This team went above and beyond to help any way they could. My utility room look clean and the work done right. I highly recommend Varsity. I feel comfortable knowing the technicians had the right training and were really nice guys to deal with. Thanks to Erica for taking my call so late and to Christine for getting the men out so quickly the next morning. They kept me informed every step of the way. I appreciated that. "
Shower Fixtures
Installation
Truck
Best of L.I. Winner 2024
Angi 2022 Super Service Award Winner

+86

Response time11 hrs
115 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.7(
60
)

Serving Commack, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Kevin was great! The rest of the company not so much. Kevin diagnosed the problem immediately as the thermostat, had a replacement in the truck, and completed the installation of the new unit quickly. He showed me how to program the updated version, and everything seemed to be fine - until the next morning. Turned out the replacement was defective. When I called, I was told that they might not be able to get back to me that day, but Kevin interrupted his schedule to come back and put in a new (and working) unit at no charge."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time3 days
8 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Varsity Home Service
Varsity Home Service
4.5(
75
)

Serving Commack, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"I am very happy with the service I received from Varsity Home Service today. I was given an arrival time and the installation team showed up on time and worked neatly with respect for my home. I had two Fujitsu Air Conditioners/Heaters installed and it has changed the level of comfort in my home instantly. Kevin, Tom and Colin were friendly, engaged and did an amazing job. I barely knew they were here. Before they left they showed everything I needed to know about my new units. I highly recommend Varsity Home Service and the Fujitsu Air Conditioning Unit."
Water Filtration Systems
Heating and Air Conditioning
Toilet, Faucet and Vanity
Water Heaters and Boilers
Water Filtration Systems

+73

Response time5 hrs
2 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Propipe plumbing and heating
Propipe plumbing and heating
5.0(
5
)

Serving Commack, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Offers commercial services

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Response time6 hrs
Avatar for Elite Heating and Cooling
Elite Heating and Cooling
5.0(
3
)

Serving Commack, NY and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Really happy with the GREE mini-split heat pump system installed by Elite Heating and Cooling. They had the best prices for the same units others quoted me higher for, so big thumbs up for value. The team was super professional with the documentation and communication. Plus, they got it all done right on schedule, which was a huge relief. Definitely recommend them if you are looking to get HVAC work done without any fuss or over-spending."
Living Room Wall Unit
Master Bedroom Wall Unit
Response time1 day
Recommended by100%of homeowners
Avatar for Four Points Mechanical
Four Points Mechanical
5.0(
14
)

Serving Commack, NY and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Jimmy always returned my calls or texts quickly. Showed up on time and gave free estimate. Very professional and have recommended to coworkers & friends. Would hire again. He replaced a leaking antique shower setup with an updated one. Showering is fantastic, with great water pressure. Pleasant experience all around. Understood and addressed all my concerns."
Response time8 hrs
Recommended by100%of homeowners
Avatar for BERARDI ELECTRICAL CONTRACTING, INC.
BERARDI ELECTRICAL CONTRACTING, INC.
4.4(
56
)

Serving Commack, NY and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Since I moved into my apartment around 20 years ago, I've had problems with the bathroom exhaust fan. When I turned it on, often the circuit breaker would be thrown. Finally it got to the point where it just wouldn't work at all - if I tried to use it, the fuse was blown. I posted the project here and Leonel of Berardi contacted me shortly afterwards. After looking at it he determined that the fan was the wrong kind and wasn't even installed properly. He explained it to me, ordered the correct fan, and had someone come over to install it. Now the fan works perfectly, no more blown fuse, and it's less noisy, too. They could have played this differently, slapped on a bandaid on it and had me call again and again for the same problem, but Berardi did the right thing. I'd recommend them to anybody who needs electrical work done."
Lido beach NY
Lido beach NY
Lido beach NY
Response time6 hrs
Response rate91%
Recommended by71%of homeowners
Showing 1-10 of 16

The Commack, NY homeowners’ guide to tankless water heater installations

From average costs to expert advice, get all the answers you need to get your job done.