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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon129
    Verified water heater services reviews

Find Water heater pros in Milton

Avatar for Keep Smiling Plumbing & Electric

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro
Customers say: Super punctual
1444 local quotes requested
40 years of experience

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025


"I recently had an electrical inspection done by TE Certified Electrical, Plumbing, Heating & Cooling, and I couldn’t be more impressed. From the moment the technician arrived, the experience was professional, thorough, and reassuring. They took the time to explain everything they found in a way that was easy to understand, and I felt confident I was in good hands. What stood out most was their attention to detail—they didn’t just check the basics, they inspected the entire system to ensure my home was safe and up to code. No high-pressure sales, just honest advice and helpful recommendations. I’ll absolutely be using TE Certified again and would highly recommend them to anyone looking for top-tier electrical service."

BRIAN S on June 2025

TE Certified Electrical, Plumbing, Heating & Cooling is a customer-focused residential service company. We fix & replace electrical, plumbing, and HVAC systems for Greater Atlanta homeowners. Please call our office to schedule your appointment today. 770-667-6937

"I recently had an electrical inspection done by TE Certified Electrical, Plumbing, Heating & Cooling, and I couldn’t be more impressed. From the moment the technician arrived, the experience was professional, thorough, and reassuring. They took the time to explain everything they found in a way that was easy to understand, and I felt confident I was in good hands. What stood out most was their attention to detail—they didn’t just check the basics, they inspected the entire system to ensure my home was safe and up to code. No high-pressure sales, just honest advice and helpful recommendations. I’ll absolutely be using TE Certified again and would highly recommend them to anyone looking for top-tier electrical service."

BRIAN S on June 2025


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

5.00(
5
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

5.00(
5
)
Approved Pro
14 local quotes requested
90 years of experience

Roto-Rooter is a fully licensed and insured plumbing company providing 24/7 plumbing services, drain cleaning, and water damage cleanup. More people depend on Roto-Rooter than any other plumbing company in North America. 

Roto-Rooter is a fully licensed and insured plumbing company providing 24/7 plumbing services, drain cleaning, and water damage cleanup. More people depend on Roto-Rooter than any other plumbing company in North America. 


Avatar for Casteel Heating, Cooling, Plumbing & Electrical

Casteel Heating, Cooling, Plumbing & Electrical

4.74(
88
)
Approved Pro

Casteel Heating, Cooling, Plumbing & Electrical

4.74(
88
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
457 local quotes requested

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024


Avatar for Cool Air Mechanical LLC

Cool Air Mechanical LLC

4.75(
267
)
Approved Pro

Cool Air Mechanical LLC

4.75(
267
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
196 local quotes requested

For years, Cool Air Mechanical has been an expert provider of heating, cooling, plumbing, indoor air quality, generators and electrical services throughout the greater Atlanta region. If you find that it is time to have a new heating or cooling system installed in your home, or if you need someone to take over maintenance for you HVAC system in Atlanta, call us today and learn more about our full range of services. Each of our technicians is chosen based on their ability to provide the utmost in service to each of the customers they visit and they are prepared for nearly any issue that could arise. If you are interested in getting more out of your heating and cooling systems in Atlanta or the surrounding area, give us a call today. Additional website: www.770coolair.com

"Cool Air Mechanical LLC delivered exceptional service with our water heater installation! From the moment we scheduled the appointment, their team was professional, punctual, and incredibly knowledgeable. They assessed our needs thoroughly and guided us to the perfect unit for our home. Installation was seamless—efficient, clean, and done with care. We appreciated the technicians’ attention to detail and their willingness to explain everything clearly. What truly stood out was their commitment to customer satisfaction. They even followed up to ensure everything was running perfectly! It’s rare to find a company that combines technical expertise with genuine courtesy. Highly recommend Cool Air Mechanical for anyone in need of top-notch HVAC or plumbing services. They’ve earned our trust and future business!"

Carli S on July 2025

For years, Cool Air Mechanical has been an expert provider of heating, cooling, plumbing, indoor air quality, generators and electrical services throughout the greater Atlanta region. If you find that it is time to have a new heating or cooling system installed in your home, or if you need someone to take over maintenance for you HVAC system in Atlanta, call us today and learn more about our full range of services. Each of our technicians is chosen based on their ability to provide the utmost in service to each of the customers they visit and they are prepared for nearly any issue that could arise. If you are interested in getting more out of your heating and cooling systems in Atlanta or the surrounding area, give us a call today. Additional website: www.770coolair.com

"Cool Air Mechanical LLC delivered exceptional service with our water heater installation! From the moment we scheduled the appointment, their team was professional, punctual, and incredibly knowledgeable. They assessed our needs thoroughly and guided us to the perfect unit for our home. Installation was seamless—efficient, clean, and done with care. We appreciated the technicians’ attention to detail and their willingness to explain everything clearly. What truly stood out was their commitment to customer satisfaction. They even followed up to ensure everything was running perfectly! It’s rare to find a company that combines technical expertise with genuine courtesy. Highly recommend Cool Air Mechanical for anyone in need of top-notch HVAC or plumbing services. They’ve earned our trust and future business!"

Carli S on July 2025


Avatar for Bardi Heating, Cooling, Plumbing, Electrical

Bardi Heating, Cooling, Plumbing, Electrical

4.07(
85
)
Approved Pro

Bardi Heating, Cooling, Plumbing, Electrical

4.07(
85
)
Approved Pro
Customers say: Super punctual
77 local quotes requested
36 years of experience

Bardi Heating, Cooling, Plumbing, Electrical has proudly served Metro Atlanta homeowners since 1989 with a reputation built on trust, integrity, and exceptional service. Our licensed and highly trained technicians provide full-service solutions for HVAC, plumbing, electrical, drains, and whole-house generators. Whether it’s keeping your home comfortable with reliable heating and cooling, ensuring safety with expert electrical repairs, or protecting your family with clean water and efficient plumbing, Bardi delivers prompt, professional care. We also offer 24/7 emergency service, upfront pricing, and a 100% satisfaction guarantee—so you’ll never face surprises. As a family-owned business and NexStar member, we combine small-business values with big-company expertise, putting your comfort and peace of mind first. Experience why Metro Atlanta families in Marietta, Roswell, Alpharetta, Sandy Springs, and beyond choose Bardi for their home service needs.

"I requested a HVAC tech come out to my home as my AC was not working properly. The tech recommended that I get a new AC. He told me he would have his sales rep come out to talk to me about the options I would have as far as replacing it. Their sales rep showed up. His name is Jimmy, and he told me all these great things about Bardi and their products. We came to an agreement of my buying a cheap HVAC system as I was trying to save money. It would cost me 12,000 dollars for the system. The next day April 5th, 2025 their install tech came out and installed the equipment. I was at work at the time, but I had a family member there. I returned home to find out the lower level of my home was not being cooled, and they had left part of my old HVAC system connected to the new system. It was a burnt up disconnect that should have been replaced and was a major part of what was wrong with my old system. Also they used a panel cover from my old system instead of new. I asked Jimmy to come and pick up the equipment which it states I have three days to reject the equipment in the contract. He expressed that I couldn't reject the equipment after it was installed. They had a tech come out the next day April 6, 2025 to fix the downstairs not working, and he fixed it. The next day it happened to be cold outside so I turned on the heat. No heat was coming out of the vents just cool air and the fan unit was running extremely loud outside. It was so loud it sounded like the fan unit was in my room on the second floor, so I turned it off. When I did turn off the fan unit made a horrible exploding noise. Once again I called Bardi and asked them to come get their HVAC system, they refused. Crystal the customer care rep is who I spoke with. She scheduled another repair tech to come out on April 12th to look at the HVAC system. I waited the entire day and no one showed up. I finally called and the receptionist told me it was their employee appreciation day no one would be coming. Monday I received a call from Crystal their customer care rep stating she text me and told me no one would be coming, but I never received that text. She scheduled another appointment for Easter Sunday. I stayed home Easter Sunday instead of going to church, and no one showed up again. I've stated each and every time I've spoken with someone from Bardi that I don't want to do business with them but they are basically trying to force me to keep their equipment at this point. This is by far the worst customer service experience I've ever had. These people are trying to rip their customers off basically. This should be illegal. I've reach out to get a lawyer to force them to remove their equipment from my home. Stay away from these people at all cost."

Sean S on April 2025

Bardi Heating, Cooling, Plumbing, Electrical has proudly served Metro Atlanta homeowners since 1989 with a reputation built on trust, integrity, and exceptional service. Our licensed and highly trained technicians provide full-service solutions for HVAC, plumbing, electrical, drains, and whole-house generators. Whether it’s keeping your home comfortable with reliable heating and cooling, ensuring safety with expert electrical repairs, or protecting your family with clean water and efficient plumbing, Bardi delivers prompt, professional care. We also offer 24/7 emergency service, upfront pricing, and a 100% satisfaction guarantee—so you’ll never face surprises. As a family-owned business and NexStar member, we combine small-business values with big-company expertise, putting your comfort and peace of mind first. Experience why Metro Atlanta families in Marietta, Roswell, Alpharetta, Sandy Springs, and beyond choose Bardi for their home service needs.

"I requested a HVAC tech come out to my home as my AC was not working properly. The tech recommended that I get a new AC. He told me he would have his sales rep come out to talk to me about the options I would have as far as replacing it. Their sales rep showed up. His name is Jimmy, and he told me all these great things about Bardi and their products. We came to an agreement of my buying a cheap HVAC system as I was trying to save money. It would cost me 12,000 dollars for the system. The next day April 5th, 2025 their install tech came out and installed the equipment. I was at work at the time, but I had a family member there. I returned home to find out the lower level of my home was not being cooled, and they had left part of my old HVAC system connected to the new system. It was a burnt up disconnect that should have been replaced and was a major part of what was wrong with my old system. Also they used a panel cover from my old system instead of new. I asked Jimmy to come and pick up the equipment which it states I have three days to reject the equipment in the contract. He expressed that I couldn't reject the equipment after it was installed. They had a tech come out the next day April 6, 2025 to fix the downstairs not working, and he fixed it. The next day it happened to be cold outside so I turned on the heat. No heat was coming out of the vents just cool air and the fan unit was running extremely loud outside. It was so loud it sounded like the fan unit was in my room on the second floor, so I turned it off. When I did turn off the fan unit made a horrible exploding noise. Once again I called Bardi and asked them to come get their HVAC system, they refused. Crystal the customer care rep is who I spoke with. She scheduled another repair tech to come out on April 12th to look at the HVAC system. I waited the entire day and no one showed up. I finally called and the receptionist told me it was their employee appreciation day no one would be coming. Monday I received a call from Crystal their customer care rep stating she text me and told me no one would be coming, but I never received that text. She scheduled another appointment for Easter Sunday. I stayed home Easter Sunday instead of going to church, and no one showed up again. I've stated each and every time I've spoken with someone from Bardi that I don't want to do business with them but they are basically trying to force me to keep their equipment at this point. This is by far the worst customer service experience I've ever had. These people are trying to rip their customers off basically. This should be illegal. I've reach out to get a lawyer to force them to remove their equipment from my home. Stay away from these people at all cost."

Sean S on April 2025


Moncrief Heating & Air Conditioning

4.67(
302
)
Approved Pro

Moncrief Heating & Air Conditioning

4.67(
302
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
127 years of experience

For more than 118 years, we’ve been proudly turning houses into comfortable homes. It’s how we've become Atlanta's most trusted heating and cooling company. Along the way, we discovered something important...becoming a leader isn’t just about installing systems or maintaining equipment. It’s about instilling trust in our customers. We work hard to respect people’s homes and businesses, provide the most energy efficient solutions, and never forget that where we do our job is where you live and work.

"They were on time, kept the work area clean, we very polite and professional, did a great job."

George B on December 2020

For more than 118 years, we’ve been proudly turning houses into comfortable homes. It’s how we've become Atlanta's most trusted heating and cooling company. Along the way, we discovered something important...becoming a leader isn’t just about installing systems or maintaining equipment. It’s about instilling trust in our customers. We work hard to respect people’s homes and businesses, provide the most energy efficient solutions, and never forget that where we do our job is where you live and work.

"They were on time, kept the work area clean, we very polite and professional, did a great job."

George B on December 2020


Avatar for SRD LLC

SRD LLC

5.00(
7
)
Approved Pro

SRD LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
91 local quotes requested

I specialize in bathroom and kitchen design and restoration. Complete remodels of kitchen and bathrooms, if you want to get creative, we can add a twist to things to revamp that old kitchen or bathroom of yours.: Veteran Owned: 10% discounts for Military, Seniors, First Responders Cash/Check/Zelle/Venmo/ Cash app/ Cash

"Tyler was excellent! Highly recommend. Easy to communicate with and very reasonable."

Erin D on August 2025

I specialize in bathroom and kitchen design and restoration. Complete remodels of kitchen and bathrooms, if you want to get creative, we can add a twist to things to revamp that old kitchen or bathroom of yours.: Veteran Owned: 10% discounts for Military, Seniors, First Responders Cash/Check/Zelle/Venmo/ Cash app/ Cash

"Tyler was excellent! Highly recommend. Easy to communicate with and very reasonable."

Erin D on August 2025


Avatar for Professional Home Improvement Inc

Professional Home Improvement Inc

4.99(
105
)
Approved Pro

Professional Home Improvement Inc

4.99(
105
)
Approved Pro
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
40 local quotes requested

Welcome to P.H.I. We specialize in bathroom, kitchens, tile or wood floors. We customize your job, and our goal is to minimize the discomfort of construction while making your home beautiful. We are licensed and insured. Our owner is a NARI Master Certified Kitchen and Bath Remodeler (MCKBR) and Universal Design Certified Professional (UDCP). P.H.I. has been awarded NARI Contractor of the Year for our bathrooms in multiple recent years.

"This was the third bathroom remodel for which we used PHI. The first, small just fixture replacement, the second remodel included making a bathroom for an elderly famly member with cognative and movility issues plus creating a small kitchenette. This third one makes every one of the three bathrooms in our 1980's something home modern, roomy and up-to-date. The tiny pre-fab shower had to go. In it's place, with some annexed space from another room, Dennis and his team put a large walk-in shower, it is fully tiled using a Schluter base and includes new lighting and several shower head options from which to choose. When we finally decide to down-size, we will likely use PHI for any remodeling and always recommend them. The entire team was professional, skilled, friendly and honest. The depth of knowledge came in handy on more than one occasion because as often happens with remodels one finds surprises once opening up walls. They knew just what to do."

Michael D on October 2025

Welcome to P.H.I. We specialize in bathroom, kitchens, tile or wood floors. We customize your job, and our goal is to minimize the discomfort of construction while making your home beautiful. We are licensed and insured. Our owner is a NARI Master Certified Kitchen and Bath Remodeler (MCKBR) and Universal Design Certified Professional (UDCP). P.H.I. has been awarded NARI Contractor of the Year for our bathrooms in multiple recent years.

"This was the third bathroom remodel for which we used PHI. The first, small just fixture replacement, the second remodel included making a bathroom for an elderly famly member with cognative and movility issues plus creating a small kitchenette. This third one makes every one of the three bathrooms in our 1980's something home modern, roomy and up-to-date. The tiny pre-fab shower had to go. In it's place, with some annexed space from another room, Dennis and his team put a large walk-in shower, it is fully tiled using a Schluter base and includes new lighting and several shower head options from which to choose. When we finally decide to down-size, we will likely use PHI for any remodeling and always recommend them. The entire team was professional, skilled, friendly and honest. The depth of knowledge came in handy on more than one occasion because as often happens with remodels one finds surprises once opening up walls. They knew just what to do."

Michael D on October 2025


Avatar for SunDry Waterproofing, Inc.

SunDry Waterproofing, Inc.

4.38(
236
)
Approved Pro

SunDry Waterproofing, Inc.

4.38(
236
)
Approved Pro
Customers say: True professional
19 years of experience
Free onsite estimate

With business starting in 1995, SunDry Waterproofing, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us at 678-969-9080 for a no cost, no obligation, evaluation and estimate.

"."

David W on September 2025

With business starting in 1995, SunDry Waterproofing, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us at 678-969-9080 for a no cost, no obligation, evaluation and estimate.

"."

David W on September 2025

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Water Heaters questions, answered by experts

It usually takes a professional water heater installer between two and three hours to remove an existing water heater and install a new tank heater. However, it could take four to five hours if they have to work in a small utility closet or another tight area, like a crawl space. Tankless water heaters have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

Installing a water heater costs about $1,300 on average. The overall price ranges from as low as $880 to as high as $1,800, depending on the type of water heater and any additional plumbing work required to fit the new water heater. Other cost factors for this type of installation include the tank size, tank vs. tankless, fuel type, vent system, permits, location, and labor cost for installation.

You don’t have to replace expansion tanks at the same time as your hot water heater. You may be able to go six to 12 years or more before needing to replace your expansion tank. At $150 to $450, hot water heater expansion tanks are usually much more affordable than the cost of hot water tanks themselves, which average about $1,190.

Most hot water heater manufacturers recommend replacing the anode rod about once every three to five years. Anode rods sacrifice themselves by collecting iron, limestone, and other minerals that would otherwise corrode your hot water heater tank. This abuse wears them out long before your water heater does. Check the rod when you remove it and replace it if more than 50% of the metal has been consumed. Check the rod more frequently if you have hard water or use a water softener. 

The Milton, GA homeowners’ guide to water heater services

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