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Find Water heater repair or service pros in Old Greenwich

Avatar for Mr. Rooter of Southern Fairfield  County

Mr. Rooter of Southern Fairfield County

4.57(
178
)
Approved Pro

Mr. Rooter of Southern Fairfield County

4.57(
178
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
13 years of experience

The plumbing service experts at Mr. Rooter of Southern Fairfield County are honest and ethical, and provide exceptional drain cleaning and plumbing services. Our customers know that Mr. Rooter plumbers will do the job right the first time and treat their entire home or business with the respect and care it deserves. A plumbing emergency is one of the most stressful and disruptive events a homeowner experiences. We offer a 24-hour solution for your residential and commercial properties. We work extremely hard to deliver the highest level of customer service is our number 1 priority. We also understand that actions speak louder than words, so we encourage you to visit Customer Testimonials to get a better picture of our customer service record. Ask us a question, or get in touch with an expert plumbing technician 24 hours a day, seven days a week.

"Job as oer promised and specifications"

Jay A on September 2023

The plumbing service experts at Mr. Rooter of Southern Fairfield County are honest and ethical, and provide exceptional drain cleaning and plumbing services. Our customers know that Mr. Rooter plumbers will do the job right the first time and treat their entire home or business with the respect and care it deserves. A plumbing emergency is one of the most stressful and disruptive events a homeowner experiences. We offer a 24-hour solution for your residential and commercial properties. We work extremely hard to deliver the highest level of customer service is our number 1 priority. We also understand that actions speak louder than words, so we encourage you to visit Customer Testimonials to get a better picture of our customer service record. Ask us a question, or get in touch with an expert plumbing technician 24 hours a day, seven days a week.

"Job as oer promised and specifications"

Jay A on September 2023


Avatar for Comfort Masters

Comfort Masters

4.97(
114
)
Approved Pro

Comfort Masters

4.97(
114
)
Approved Pro
Customers say: Super punctual
24 years of experience
Free onsite estimate

We provide exceptional service to all of our customers, especially Angie Leads clients. This can be verified by viewing our great Angie's List reviews. Our customers come to us year in and year out because we are a customer driven, family owned and operated business who stands for quality and service after the sale Our Services Include: Comprehensive Plumbing Solutions: From leaky faucets, remodel work, new construction, gas lines, water heater installations, and more, we handle it all with precision and care. Heating Services: Ensure your comfort during those cold months with our heating system repairs, maintenance, and installation services. We specialize in hot water and steam boilers. Emergency Services: Emergencies don?t wait, and neither do we. Our team is available 24/7 to ensure you're not left stranded in a crisis.

"Finding a reliable contractor is tough these days, but I got lucky hiring Chris. He and his son arrived on time, replaced my electric hot water tank, fixed a leaking guest bathroom sink, and cleaned up afterwards. Chris is a true professional with a great attitude excellent work at a fair price. I highly recommend him."

Thaddeus S on December 2025

We provide exceptional service to all of our customers, especially Angie Leads clients. This can be verified by viewing our great Angie's List reviews. Our customers come to us year in and year out because we are a customer driven, family owned and operated business who stands for quality and service after the sale Our Services Include: Comprehensive Plumbing Solutions: From leaky faucets, remodel work, new construction, gas lines, water heater installations, and more, we handle it all with precision and care. Heating Services: Ensure your comfort during those cold months with our heating system repairs, maintenance, and installation services. We specialize in hot water and steam boilers. Emergency Services: Emergencies don?t wait, and neither do we. Our team is available 24/7 to ensure you're not left stranded in a crisis.

"Finding a reliable contractor is tough these days, but I got lucky hiring Chris. He and his son arrived on time, replaced my electric hot water tank, fixed a leaking guest bathroom sink, and cleaned up afterwards. Chris is a true professional with a great attitude excellent work at a fair price. I highly recommend him."

Thaddeus S on December 2025


Avatar for bluefrog Plumbing + Drain of Stamford

bluefrog Plumbing + Drain of Stamford

5.00(
8
)
Approved Pro

bluefrog Plumbing + Drain of Stamford

5.00(
8
)
Approved Pro
81 local quotes requested
1 years of experience

Bluefrog Plumbing + Drain of Stamford is a family-owned and operated business committed to putting customer care at the heart of every service we provide. We employ only highly trained, experienced plumbing professionals—so you can feel confident your home is in expert hands. From your first call to the final follow-up, we go above and beyond to ensure you feel informed, supported, and valued throughout the entire process. Our team provides in-person assessments with clear, up-front pricing and takes the time to explain your plumbing issue and all available solutions. To help you save even more, we also offer our Bluefrog Membership Program—just $99 per year, giving you access to 15% off services, priority scheduling, and other exclusive benefits designed to keep your home protected year-round. We proudly stand behind our work with a satisfaction guarantee and dedicated customer support. Experience plumbing the Bluefrog way—professional, transparent, and centered around you.

"Very responsive, friendly, and reliable service. Would hire again! "

Mike S on November 2025

Bluefrog Plumbing + Drain of Stamford is a family-owned and operated business committed to putting customer care at the heart of every service we provide. We employ only highly trained, experienced plumbing professionals—so you can feel confident your home is in expert hands. From your first call to the final follow-up, we go above and beyond to ensure you feel informed, supported, and valued throughout the entire process. Our team provides in-person assessments with clear, up-front pricing and takes the time to explain your plumbing issue and all available solutions. To help you save even more, we also offer our Bluefrog Membership Program—just $99 per year, giving you access to 15% off services, priority scheduling, and other exclusive benefits designed to keep your home protected year-round. We proudly stand behind our work with a satisfaction guarantee and dedicated customer support. Experience plumbing the Bluefrog way—professional, transparent, and centered around you.

"Very responsive, friendly, and reliable service. Would hire again! "

Mike S on November 2025


Avatar for Benjamin Franklin Plumbing of Danbury

Benjamin Franklin Plumbing of Danbury

5.00(
5
)
Approved Pro

Benjamin Franklin Plumbing of Danbury

5.00(
5
)
Approved Pro
50 local quotes requested
1 years of experience

We take pride in serving the vibrant community of Danbury, and we understand the unique plumbing challenges that homeowners in this area may face. Whether it's addressing hard water issues prevalent in the region, performing sewer line inspections to prevent root intrusions, or offering eco-friendly plumbing solutions, our expertise is tailored to the specific needs of Danbury residents. Trust Benjamin Franklin Plumbing of Danbury to safeguard your pipes and preserve the integrity of your plumbing system. With our unwavering dedication to quality, reliability, and customer satisfaction, you can feel confident that your home is in capable hands.

We take pride in serving the vibrant community of Danbury, and we understand the unique plumbing challenges that homeowners in this area may face. Whether it's addressing hard water issues prevalent in the region, performing sewer line inspections to prevent root intrusions, or offering eco-friendly plumbing solutions, our expertise is tailored to the specific needs of Danbury residents. Trust Benjamin Franklin Plumbing of Danbury to safeguard your pipes and preserve the integrity of your plumbing system. With our unwavering dedication to quality, reliability, and customer satisfaction, you can feel confident that your home is in capable hands.


Avatar for Cassidy Plumbing and Heating, Inc

Cassidy Plumbing and Heating, Inc

4.54(
24
)
Approved Pro

Cassidy Plumbing and Heating, Inc

4.54(
24
)
Approved Pro
Super Service Award
Customers say: True professional
11 local quotes requested
34 years of experience

We are a fully licensed and insured plumbing and heating service offering comprehensive services for plumbing and heating in Westchester NY, Putnam NY, Southern Dutchess and the surrounding areas. Our services include toilet repair, hot water heaters, leak repair, drain cleaning, boiler services and much more. A complete listing of the services offered by our professional plumbers can be found on our website. In addition to plumbing and heating services for existing homes and new construction, we offer 24-hour emergency service for plumbing emergencies. Check our website www.cassidyplumbinginc.com for our specials.

"Oct. 6 2025 it went quick. I received an estimate of The job first. The work was done correctly. It didn't take long. If I need plumbing service again. I would contact Cassidy plumbing & Heating."

Ann S on October 2025

We are a fully licensed and insured plumbing and heating service offering comprehensive services for plumbing and heating in Westchester NY, Putnam NY, Southern Dutchess and the surrounding areas. Our services include toilet repair, hot water heaters, leak repair, drain cleaning, boiler services and much more. A complete listing of the services offered by our professional plumbers can be found on our website. In addition to plumbing and heating services for existing homes and new construction, we offer 24-hour emergency service for plumbing emergencies. Check our website www.cassidyplumbinginc.com for our specials.

"Oct. 6 2025 it went quick. I received an estimate of The job first. The work was done correctly. It didn't take long. If I need plumbing service again. I would contact Cassidy plumbing & Heating."

Ann S on October 2025


Avatar for Sila Heating, Cooling and Plumbing

Sila Heating, Cooling and Plumbing

4.49(
856
)
Approved Pro

Sila Heating, Cooling and Plumbing

4.49(
856
)
Approved Pro
Customers say: Super punctual
37 local quotes requested
37 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Did a great job"

susan s on March 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Did a great job"

susan s on March 2025


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

4.14(
171
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

4.14(
171
)
Approved Pro
Customers say: Quick response
91 years of experience
Free onsite estimate

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"They were a day late"

Tina D on August 2025

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"They were a day late"

Tina D on August 2025


Avatar for Aldos plumbing

Aldos plumbing

5.00(
28
)
Approved Pro

Aldos plumbing

5.00(
28
)
Approved Pro
Customers say: Quick response
Free onsite estimate
Emergency services offered

At Aldo's Plumbing, serving the Tri-State Area, we prioritize customer satisfaction. Our expertise in water heaters ensures that your home projects are handled with care. Contact us today for a seamless experience!

"Aldo was very professional, clean, and his price was very fair. I will definitely hire him again for any plumbing issues that I may have. "

Diane B on February 2026

At Aldo's Plumbing, serving the Tri-State Area, we prioritize customer satisfaction. Our expertise in water heaters ensures that your home projects are handled with care. Contact us today for a seamless experience!

"Aldo was very professional, clean, and his price was very fair. I will definitely hire him again for any plumbing issues that I may have. "

Diane B on February 2026


Avatar for 1 LLC

1 LLC

4.75(
12
)

1 LLC

4.75(
12
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

Plumbing, electrical, heating, air conditioning, and hot water heaters. 1 LLC has been in business since 2003

"Super easy & got the job done very quick. Nick was very responsive and easy to work with (and actually suggested I pursue a cheaper alternative that I initially asked for, which never happens). Strongly recommend and would use again!"

Jason S on June 2021

Plumbing, electrical, heating, air conditioning, and hot water heaters. 1 LLC has been in business since 2003

"Super easy & got the job done very quick. Nick was very responsive and easy to work with (and actually suggested I pursue a cheaper alternative that I initially asked for, which never happens). Strongly recommend and would use again!"

Jason S on June 2021


Lambert Home Services

No reviews yet

Lambert Home Services

No reviews yet
Free onsite estimate

Lambert Home Services offers quality handyman and home improvements at a fair price. No job is too small!

Lambert Home Services offers quality handyman and home improvements at a fair price. No job is too small!

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FAQs for water heater repair or service projects in Old Greenwich, CT

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Old Greenwich, CT homeowners’ guide to water heater repair or services

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