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TRUSTED BY RED OAK, GA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon66
    Verified water heater services reviews

Find Water heater pros in Red Oak

"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 Casteel Heating, Cooling, Plumbing & Electrical

Casteel Heating, Cooling, Plumbing & Electrical

4.68(
917
)
Approved Pro

Casteel Heating, Cooling, Plumbing & Electrical

4.68(
917
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
209 local quotes requested

**2018, 2017, 2016,2015, 2014, & 2013 SUPER SERVICE AWARD WINNER!** During the past 30 years, Casteel Heating and Cooling has been one of the most respected names in metro Atlanta for heating and air conditioning. Since then we have grown and added a Plumbing and Electrical division with some of the industries best technicians! We are now offering experts in hydro jetting to clear even the worst clogged drains in your commercial or residential property. With over 30,000 5 star and A+reviews, the #1 Plumber in Atlanta as voted by Atlanta Home Improvement Magazine, and having been awarded Top 25 Small Business of the year -7 times in a row, Casteel is your only call to have your home repairs completed in a timely and budget friendly manner by the best! When we say "We'll take Amazing Care of You," we guarantee it! Your Amazing Care continues to our craftsmanship, technician know how, and even to the job clean up. Your home will be left as if we were never there. Knowing that you are a satisfied customer is our top priority and each survey is personally seen and responded to. As one of the top Heating, Cooling, Plumbing and Electrical companies in the metro Atlanta area, Casteel is your one and only call for your home service needs.

"I used Casteel Plumbing and HVAC services. Both technicians were friendly and prompt with their services."

Brittni R on August 2025

**2018, 2017, 2016,2015, 2014, & 2013 SUPER SERVICE AWARD WINNER!** During the past 30 years, Casteel Heating and Cooling has been one of the most respected names in metro Atlanta for heating and air conditioning. Since then we have grown and added a Plumbing and Electrical division with some of the industries best technicians! We are now offering experts in hydro jetting to clear even the worst clogged drains in your commercial or residential property. With over 30,000 5 star and A+reviews, the #1 Plumber in Atlanta as voted by Atlanta Home Improvement Magazine, and having been awarded Top 25 Small Business of the year -7 times in a row, Casteel is your only call to have your home repairs completed in a timely and budget friendly manner by the best! When we say "We'll take Amazing Care of You," we guarantee it! Your Amazing Care continues to our craftsmanship, technician know how, and even to the job clean up. Your home will be left as if we were never there. Knowing that you are a satisfied customer is our top priority and each survey is personally seen and responded to. As one of the top Heating, Cooling, Plumbing and Electrical companies in the metro Atlanta area, Casteel is your one and only call for your home service needs.

"I used Casteel Plumbing and HVAC services. Both technicians were friendly and prompt with their services."

Brittni R on August 2025


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
197 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


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 Rooter Pro Plumbing GA

Rooter Pro Plumbing GA

5.00(
5
)
Approved Pro

Rooter Pro Plumbing GA

5.00(
5
)
Approved Pro
Customers say: Quick response
263 local quotes requested
4 years of experience

As a locally owned plumbing business hailing from Atlanta, Georgia, we take great pride in serving our community with top-notch indoor and underground plumbing solutions. Trust us to keep your home running smoothly. With a dedicated team and a commitment to excellence, we are here to meet all your plumbing needs. Count on us for reliable and professional service that you can depend on.

"They sent Andy out to help us and he did a terrific job in a short span of time. Everything was fixed up, looked and smelled great, and Andy was a very personable guy as well."

Ben R on November 2025

As a locally owned plumbing business hailing from Atlanta, Georgia, we take great pride in serving our community with top-notch indoor and underground plumbing solutions. Trust us to keep your home running smoothly. With a dedicated team and a commitment to excellence, we are here to meet all your plumbing needs. Count on us for reliable and professional service that you can depend on.

"They sent Andy out to help us and he did a terrific job in a short span of time. Everything was fixed up, looked and smelled great, and Andy was a very personable guy as well."

Ben R on November 2025


Avatar for Ragsdale Heating, Air & Plumbing

Ragsdale Heating, Air & Plumbing

4.75(
158
)
Approved Pro

Ragsdale Heating, Air & Plumbing

4.75(
158
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
196 local quotes requested

Since 1996, Ragsdale Heating, Air, Plumbing and Electrical has worked to maintain our reputation as the name you can trust for your heating, cooling, plumbing and electrical needs. Our Ragsdale team is comprised of truly good people, who care deeply and are devoted to taking exceptional care of our customers, our community, and each other. From the people in our office to the technicians out on the road, everyone here is dedicated to 100% customer satisfaction. We are a family who treats you like family, and we are 100% focused on doing what is right every time, every day. Our goal is for you to take comfort in knowing that when you have a problem, Ragsdale is here for you.

"The latest visit diagnosed a failed ignition valve which needed to be ordered and replaced. They arrived promptly, assessed, diagnosed and ordered the parts immediately. It only took a few days for the parts to arrive and they were able to schedule me in for the service call. The first technician was able to maintain the ignition valve until the new part was available, which was directly responsible for heating my home. The second technician installed the part and was able to assist me in some technical updates on the app and digital thermostats. I learned so much from Michael and appreciated his knowledge and patience. He also fixed a safety issue on the second level and adjusted the air flow for the system. The system sounds so much quieter. It was a warranty issue with no cost."

Dyanne W on November 2025

Since 1996, Ragsdale Heating, Air, Plumbing and Electrical has worked to maintain our reputation as the name you can trust for your heating, cooling, plumbing and electrical needs. Our Ragsdale team is comprised of truly good people, who care deeply and are devoted to taking exceptional care of our customers, our community, and each other. From the people in our office to the technicians out on the road, everyone here is dedicated to 100% customer satisfaction. We are a family who treats you like family, and we are 100% focused on doing what is right every time, every day. Our goal is for you to take comfort in knowing that when you have a problem, Ragsdale is here for you.

"The latest visit diagnosed a failed ignition valve which needed to be ordered and replaced. They arrived promptly, assessed, diagnosed and ordered the parts immediately. It only took a few days for the parts to arrive and they were able to schedule me in for the service call. The first technician was able to maintain the ignition valve until the new part was available, which was directly responsible for heating my home. The second technician installed the part and was able to assist me in some technical updates on the app and digital thermostats. I learned so much from Michael and appreciated his knowledge and patience. He also fixed a safety issue on the second level and adjusted the air flow for the system. The system sounds so much quieter. It was a warranty issue with no cost."

Dyanne W on November 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


Avatar for RJD Plumbing, LLC

RJD Plumbing, LLC

4.89(
57
)
Approved Pro

RJD Plumbing, LLC

4.89(
57
)
Approved Pro
Customers say: Quality work
5 years of experience
Free onsite estimate

RJD Plumbing LLC has over 6 years of experience and specialize in all your home plumbing needs, and guarantee you a job well done! We strive to exceed the homeowner's expectations each and every time, and get the job done the way you want it. We work in a timely fashion and always pay attention to detail. Call today!

"He was very professional, as well as informative. I would most certainly recommend him as well as use him again if I ever need some plumbing work done."

Lamont M on January 2025

RJD Plumbing LLC has over 6 years of experience and specialize in all your home plumbing needs, and guarantee you a job well done! We strive to exceed the homeowner's expectations each and every time, and get the job done the way you want it. We work in a timely fashion and always pay attention to detail. Call today!

"He was very professional, as well as informative. I would most certainly recommend him as well as use him again if I ever need some plumbing work done."

Lamont M on January 2025


AquaGuard Foundation Solutions

4.53(
158
)
Approved Pro

AquaGuard Foundation Solutions

4.53(
158
)
Approved Pro
Customers say: Quality work
80 local quotes requested
30 years of experience

AquaGuard Foundation Solutions, A Groundworks Company, specializes in helping homeowners with their foundation repair, waterproofing, concrete, and gutter needs. Our top priority is providing high-quality home repair solutions and personalized service across the metro Atlanta area. With fully trained technicians, industry-leading products, and nationally backed warranties, AquaGuard is here to restore your basement, foundation, or crawl space.

"On 3-4 November 2025 Chris, Corey and Xzavier encapsulated my crawlspace and set up the dehumidifier for the electrician. Keep in mind, the crawlspace varied from about four feet to two feet. At two feet they were crawling on their bellies. The three arrived at my house on time, Chris explained exactly what was to be done and the three of them completed the job in a most professional manner. I inspected the crawlspace when the job was completed and was amazed at the workmanship that was done. I commend Chris, Corey and Xzavier for their excellent work and the courtesy shown to my wife, myself and even our dog, Zoe. Thank you, Chris, Corey and Xzavier for a job well done. "

Charles J on November 2025

AquaGuard Foundation Solutions, A Groundworks Company, specializes in helping homeowners with their foundation repair, waterproofing, concrete, and gutter needs. Our top priority is providing high-quality home repair solutions and personalized service across the metro Atlanta area. With fully trained technicians, industry-leading products, and nationally backed warranties, AquaGuard is here to restore your basement, foundation, or crawl space.

"On 3-4 November 2025 Chris, Corey and Xzavier encapsulated my crawlspace and set up the dehumidifier for the electrician. Keep in mind, the crawlspace varied from about four feet to two feet. At two feet they were crawling on their bellies. The three arrived at my house on time, Chris explained exactly what was to be done and the three of them completed the job in a most professional manner. I inspected the crawlspace when the job was completed and was amazed at the workmanship that was done. I commend Chris, Corey and Xzavier for their excellent work and the courtesy shown to my wife, myself and even our dog, Zoe. Thank you, Chris, Corey and Xzavier for a job well done. "

Charles J on November 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
158 local quotes requested
19 years of experience

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

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.

No, you’ll need to drain the tank before changing a water heater element, as the water heater element sticks through the side of the tank and uses a gasket to prevent water from pouring out. However, you don’t always need to drain it completely. If you’re only replacing the upper heating element, you can drain the tank until the water line is below the element. If you’re replacing the lower element, you’ll need to drain the whole thing.

Signs that your water heater needs replacing include rust or corrosion on the tank, persistent leaks, inconsistent heating, strange noises coming from the heater, decreased efficiency, and visible damage. Water heaters over 10 years old may also need to be replaced. However, in some cases, these issues can be fixed with a repair rather than a replacement, so make sure to consult a pro before investing in a new water heater.

The chemicals in a water softener can wear down the anode rod in the heater and shorten its life span. However, for most people, the benefits of the softener outweigh this potential drawback.

Have a plumber inspect the anode rod annually for damage, as replacing the anode rod is far less expensive than replacing the entire water heater.

The amount of time it takes to replace an electric water heater will depend on the skill level of the individual who is replacing it. For example, if you replace it yourself–and you don’t have much experience–you can expect the project to take a full day. 

However, if you have a certified plumber or water heater contractor install your new water heater, it can take as little as 2 to 3 hours.

The Red Oak, GA homeowners’ guide to water heater services

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