4.7 
99 *The Angi rating for Water Heater Service companies in Commack, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
*The HomeAdvisor rating for Water Heater Service companies in Commack, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
Last update on February 08, 2026
Serving Commack, NY and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"FANTASTIK!!!!! Came to my house looked at Hot water tank and was back 1st thing in am and replaced everything! Fast clean super nice!!!!Explained everything! The best!"
Serving Commack, NY and surrounding areas
Approved
In business since 1969
Free estimates
Emergency services offered
"Tom was terrific....repaired boiler....cost reasonable.....explained everything so clearly so that even this 88year old understood it....experience with company from start to finish was a pleasure"
+13
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!!!"
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 !"
+86
Serving Commack, NY and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"I was very fortunate to find the right person to do the right job and would recommend Reliable Plumbing in a heartbeat 👍👍👍👍👍"
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!"
Serving Commack, NY and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
With over 23 years of a local Nassau County business, my company A Touch of Class Plumbing and Heating, Inc, is your experienced best choice for all of your residential and commercial plumbing and boiler needs! I welcome all sizes of requests and enjoy installations, replacements and service work. I am an owner operated company so you can feel security and have the quality of a licensed plumber being on every job. My attention to detail and focus on customer service will set your experience with my company and your finished work apart from what any other businesses offer! I welcome maintenance, upgrade, replacement and emergency service calls 24 hours a day. Please call me, James, for a free quote today!
Serving Commack, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Credit card accepted
"Mr .Benitez Was very professional. He explained what was needed to complete the job Clearly and the reason why. He installed a Rheem 40 Gas Tank Water Heater, including New Updated Flue Pipe. I will use him again."
Serving Commack, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2005
Free estimates
Emergency services offered
"Gave quote for water heater. Showed up for the job on time and did exactly what he quoted me for."
+137
Serving Commack, NY and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"What a great experience! Jason called me before I finished logging off HomeAdvisor. Same day service at my home. I called @ 3pm and technician called to say he was on his way by 4. Heat and Hot water restored within an hour at reasonable and fair price. I will hire this company again."
+14
From average costs to expert advice, get all the answers you need to get your job done.
Tankless water heater costs in New York, NY, depend on the size of your water heater, location, fuel type, and more. Keep reading to calculate your expenses.
The cost to flush a water heater in New York, NY, varies based on the type, size, and more. Keep reading to learn how much you could pay.
Looking to replace or upgrade your water heater in New York, NY? Use this water heater replacement cost guide to see what the work will cost and what factors affect your total.
Worried your water heater might freeze this winter? Learn to spot the warning signs and how to safely thaw your tank or tankless system out if necessary.
Hybrid water heaters will have you weighing high initial costs versus long-term savings. Is it the right option for you? Explore the pros and cons of hybrid water heaters.
The average lifespan of water heaters is 6 to 15 years for conventional models and up to 20 for tankless ones, but it can be less if they are not properly maintained.
