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TRUSTED BY COMMACK, NY HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon100
    Verified water heater services reviews

Top-Rated Water heater pros in Commack - Updated Nov 2026

Rizzo Heating & Cooling, Inc.
4.9(
87
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Commack, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Awesome from beginning to end! Showed up on time gave a very reasonable and fair price for our electric water heater. Completed the installation quickly and cleanly. Would highly recommend Rizzo Heating and Cooling to anyone!"
Response time7 hrs
Recommended by100%of homeowners
Avatar for Excellent Plumbing & Heating
Excellent Plumbing & Heating
4.9(
28
)
Tankless Water Heater - InstallWater Heater - Install or ReplaceWater Heater - Repair or Service

Serving Commack, NY and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"These guys are fabulous! They arrived on time, took the time to troubleshoot the problem, worked professionally, courteously and neatly! Kept me informed throughout the entire process and quickly got me a new water heater installed in less than 3 hours at half the price, half the time and zero problems my friend had 2 months ago! I will sing their praises and will refer them forever! They left me 100% satisfied with their clean up and efficiency! Do not hesitate to use them, they are wonderful!!!"
Oil to Gas Conversion
Response time3 hrs
Response rate99%
Recommended by42%of homeowners
Just Rite Heating and Cooling
4.9(
132
)
Water Heater - Install or Replace

Serving Commack, NY and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"Just Rite Heating & Cooling installed our central air conditioner today. The team of five were on time, courteous, friendly and hard workers. They laid down runners to keep the interior of my house clean. The boss, Eric, explained how each part of the system components worked. Together we worked out the placement of the ceiling registers in each room. After the system was completely installed I was instructed on the how the new thermostat controlled both the old heating system and the new air conditioning system. Best of all the installation was completed in one day!"
Response time5 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
4.4(
244
)
Water Heater - Install or ReplaceTankless Water Heater - Install

Serving Commack, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"Varsity Installed a new HVAC system for me over 10 years ago. They have maintained it like new. Last week in the heat surge I was having an AC issue. They did not stop till my requests for improved cooling were satisfied. After multiple visits the REFUSED TO CHARGE ME !!!! What a really great company !"
Shower Fixtures
Installation
Truck
Best of L.I. Winner 2024
Angi 2022 Super Service Award Winner

+86

Response time11 hrs
135 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Benitez Plumbing, Heating & Cooling Systems
Benitez Plumbing, Heating & Cooling Systems
5.0(
13
)
Water Heater - Install or Replace

Serving Commack, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Benitez Plumbing did an outstanding job on my oil hot water heater. The workers who came were professional neat and clean. Pricing for the work was very fair, I highly recommend this company to hire. I will continue using them going forward. What a great find in this company."
Response time8 hrs
Response rate89%
1 neighbors recently requested a quote
Avatar for Cs mechanical inc
Cs mechanical inc
5.0(
56
)
Water Heater - Install or ReplaceWater Heater - Install or Replace - For BusinessWater Heater - Repair or Service+1 more

Serving Commack, NY and surrounding areas

Approved

Super Service Award Winner

Emergency services offered

Customers say: True professional

"Chris and his co-worker were very good. My hot water heater was in a very tight space. With that being said they did a nice job on the sodering. Chris replaced a valve he didn’t like. They did a great job cleaning up. Once installed and powered up they waited outside for 30 minutes to make sure the water got hot."
Install roughing to
Install new check valve
Old plumbing
Replace and repipe heater
Install roughing to

+35

Response time10 hrs
Recommended by85%of homeowners
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Water Heaters FAQs, answered by experts

Your water heater's age can affect your homeowners' insurance policy. Many policies will ask how old the heater is when you first apply for a policy—and they may make you replace a model that's over 10 years old. 

Even if your policy permits you to have an older heater, it may significantly reduce the amount of protection available. If an older water heater suddenly leaks and causes damage to parts of your home, your policy may not cover it.

If you're replacing a broken water heater, now is a great time to make sure you're selecting a unit that has the right capacity for your household. According to the U.S. Department of Energy, a small 50-gallon to 60-gallon tank is sufficient for households with one to three people. A medium-sized 80-gallon tank is considered ideal for three to four people. A larger tank may be needed if your household has four to six people.

Electric water heaters typically last 10 to 20 years, though proper maintenance can extend their lifespan. If your unit is over a decade old and showing signs of inefficiency—such as higher energy bills, frequent repairs, or leaks—replacement is a smart investment. Tankless models last over 20 years, which can make them a longer-lasting alternative to traditional tank water heaters.

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

The average water heater holds between 40 and 60 gallons, but the exact amount of water that comes out during draining will depend on your unit’s capacity. The amount of time it takes to drain a water heater averages from 10 to 30 minutes.

The Commack, NY homeowners’ guide to water heater services

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