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Tankless water heater installers in Monroe

Avatar for Casteel Heating & Cooling, LLC
Casteel Heating & Cooling, LLC
305 Petty Rd.
New on HomeAdvisorNew on Angi
Approved Pro
Casteel Heating & Cooling, LLC
305 Petty Rd.
New on AngiNew on HomeAdvisor
Approved Pro
24 local quotes requested
38 years of experience

Casteel Heating, Cooling, Plumbing and Electrical is the company you can trust with your home service needs. We offer installation, repair and replacement services based on flat rate pricing and never any emergency fees. Our highly educated technicians pride themselves on their craftsmanship and customer service. Casteel offers industry leading warranties and guarantees to include our Amazing Care Guarantee. You get 5 star service or your service call is free! At Casteel we know your time and money are valuable, for this reason we provide you with the ability to track your technician right to your door. With fair pricing, top notch team members and our Amazing Care Guarantee, you will not go wrong with Casteel as your home services company of choice.

Casteel Heating, Cooling, Plumbing and Electrical is the company you can trust with your home service needs. We offer installation, repair and replacement services based on flat rate pricing and never any emergency fees. Our highly educated technicians pride themselves on their craftsmanship and customer service. Casteel offers industry leading warranties and guarantees to include our Amazing Care Guarantee. You get 5 star service or your service call is free! At Casteel we know your time and money are valuable, for this reason we provide you with the ability to track your technician right to your door. With fair pricing, top notch team members and our Amazing Care Guarantee, you will not go wrong with Casteel as your home services company of choice.


Avatar for Encompass Contracting LLC
Encompass Contracting LLC
1951 Old Bishop Road
4.75(
65
)
Approved Pro
Encompass Contracting LLC
1951 Old Bishop Road
4.75(
65
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
126 local quotes requested

Offering the best in both exterior and interior residential remodeling and repairs, our trained team brings together form, function, and budget to deliver your home renovation dreams. Proud to be a small company, we are able to give you all the benefits that come with it – our prices are reasonable and we only deliver you quality, personalized service. Licensed and insured business. We offer free estimates. All major credit cards accepted.

"Excellent! Professional in every aspect. Crews were always on time and had a keen attention to detail. The site was always in order & clean. Jamie is great & easy to work with, he can come up with a workable solution to any situation. Looking forward to working with Encompass & crew soon on another project."

Ken S on November 2024

Offering the best in both exterior and interior residential remodeling and repairs, our trained team brings together form, function, and budget to deliver your home renovation dreams. Proud to be a small company, we are able to give you all the benefits that come with it – our prices are reasonable and we only deliver you quality, personalized service. Licensed and insured business. We offer free estimates. All major credit cards accepted.

"Excellent! Professional in every aspect. Crews were always on time and had a keen attention to detail. The site was always in order & clean. Jamie is great & easy to work with, he can come up with a workable solution to any situation. Looking forward to working with Encompass & crew soon on another project."

Ken S on November 2024


Avatar for Thomas Septic LLC
Thomas Septic LLC
737 Magnet Rd
5.00(
22
)
Approved Pro
Thomas Septic LLC
737 Magnet Rd
5.00(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
579 local quotes requested

Septic pump outs and repairs New installations Certified inspections Pump replacements and repairs Grease trap pumping Water line installation and repairs Honest and hard working owner operated business. 10 years of experience. We are licensed and insured.

"They are nothing short of fantastic. I was quoted by another company anywhere from 5 grand to 12 grand. Turns out all I needed was a pump out and a blockage cleared for a lot less money. Thomas septic was honest and genuine. Traits so rare lately. I highly recommend them. You won’t find a team more capable or honest. Quality work done without all the bs and unneeded expenses that is Thomas septic! Honestly if I could I would give them 10 stars. Seriously call them first and you won’t need to call anyone else! I am so grateful to have found them!"

LAURI R on December 2024

Septic pump outs and repairs New installations Certified inspections Pump replacements and repairs Grease trap pumping Water line installation and repairs Honest and hard working owner operated business. 10 years of experience. We are licensed and insured.

"They are nothing short of fantastic. I was quoted by another company anywhere from 5 grand to 12 grand. Turns out all I needed was a pump out and a blockage cleared for a lot less money. Thomas septic was honest and genuine. Traits so rare lately. I highly recommend them. You won’t find a team more capable or honest. Quality work done without all the bs and unneeded expenses that is Thomas septic! Honestly if I could I would give them 10 stars. Seriously call them first and you won’t need to call anyone else! I am so grateful to have found them!"

LAURI R on December 2024


Avatar for Keep Smiling Plumbing & Electric
Keep Smiling Plumbing & Electric
3705 Harrison Rd SW
4.66(
131
)
Approved Pro
Keep Smiling Plumbing & Electric
3705 Harrison Rd SW
4.66(
131
)
Approved Pro
Customers say: Super punctual
3431 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.

"They told us "Our dispatch fee to come out is $39 and we waive that towards any work or repairs, including diagnostics." The electrician went to check and stayed at the property for less than 5 mins after confirmation to do full diagnostic of the electrical system. I don't think less than 5 mins is enough to run a full diagnostic and later on advise to upgrade the whole panel."

John P on May 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.

"They told us "Our dispatch fee to come out is $39 and we waive that towards any work or repairs, including diagnostics." The electrician went to check and stayed at the property for less than 5 mins after confirmation to do full diagnostic of the electrical system. I don't think less than 5 mins is enough to run a full diagnostic and later on advise to upgrade the whole panel."

John P on May 2025


Avatar for Rooter Johnson Plumbing
Rooter Johnson Plumbing
5.00(
25
)
Approved Pro
Rooter Johnson Plumbing
5.00(
25
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

Rooter Johnson Plumbing provides same day repairs. We are experienced and licensed plumbers based in Atlanta, GA and servicing all surrounding areas. We provide a fast, efficient and high-quality repair and installation service with affordable pricing. Give us a call or click for an estimate today!

"They installed a pump on it just the way that I asked them to do it. They came when they said they were coming. They were fast. They came out to give me an estimate and it was exactly accurate for sure. They were fast and it works great. They cleaned up and got everything back the way that it was and they did a very good job. They were also very polite."

Beth B on May 2025

Rooter Johnson Plumbing provides same day repairs. We are experienced and licensed plumbers based in Atlanta, GA and servicing all surrounding areas. We provide a fast, efficient and high-quality repair and installation service with affordable pricing. Give us a call or click for an estimate today!

"They installed a pump on it just the way that I asked them to do it. They came when they said they were coming. They were fast. They came out to give me an estimate and it was exactly accurate for sure. They were fast and it works great. They cleaned up and got everything back the way that it was and they did a very good job. They were also very polite."

Beth B on May 2025


Avatar for Casteel Heating, Cooling, Plumbing & Electrical
Casteel Heating, Cooling, Plumbing & Electrical
778 PETTY RD
4.74(
88
)
Approved Pro
Casteel Heating, Cooling, Plumbing & Electrical
778 PETTY RD
4.74(
88
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1911 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 Roto-Rooter Plumbing & Water Cleanup
Roto-Rooter Plumbing & Water Cleanup
6025 Northbelt Pkwy NW B
4.26(
172
)
Approved Pro
Roto-Rooter Plumbing & Water Cleanup
6025 Northbelt Pkwy NW B
4.26(
172
)
Approved Pro
Customers say: Quick response
3767 local quotes requested
88 years of experience

Roto-Rooter is America's Largest Plumbing and Drain Cleanng Company. We offer 24 hour services with no overtime or after hour charges. We also offer convenient finance options

"BUYER BEWARE! Had a pipe leak within my wall. Caught it fairly early with minimum damage. The Roto Rooter rep Brian came out and inspected and said I needed water mitigation based off the moisture in my walls. When I say the leak wasn't that bad, it really wasn't! He stated that my insurance company would cover it all and that he deals with my particular company all the time and not to worry. I obviously was taken back by the cost of almost 4k! Fast forward, my insurance company are questioning duplicate charges and Roto-Rooter is saying I owe almost 3k or a lien will be placed on my property! This whole water mitigation is a scam and the salesman did not tell the truth. They should have picked up their fans a lot earlier than they did. I'm sure they were trying to milk all the money they could. Over 5k for a bunch of fans in my home. I WILL NEVER REFER ANYONE TO THIS PLACE! Contacting my lawyer and will have my day in court if necessary. BUNCH OF SCAM ARTISTS IF YOU ASK ME!"

Deanna M on February 2022

Roto-Rooter is America's Largest Plumbing and Drain Cleanng Company. We offer 24 hour services with no overtime or after hour charges. We also offer convenient finance options

"BUYER BEWARE! Had a pipe leak within my wall. Caught it fairly early with minimum damage. The Roto Rooter rep Brian came out and inspected and said I needed water mitigation based off the moisture in my walls. When I say the leak wasn't that bad, it really wasn't! He stated that my insurance company would cover it all and that he deals with my particular company all the time and not to worry. I obviously was taken back by the cost of almost 4k! Fast forward, my insurance company are questioning duplicate charges and Roto-Rooter is saying I owe almost 3k or a lien will be placed on my property! This whole water mitigation is a scam and the salesman did not tell the truth. They should have picked up their fans a lot earlier than they did. I'm sure they were trying to milk all the money they could. Over 5k for a bunch of fans in my home. I WILL NEVER REFER ANYONE TO THIS PLACE! Contacting my lawyer and will have my day in court if necessary. BUNCH OF SCAM ARTISTS IF YOU ASK ME!"

Deanna M on February 2022


Avatar for Bella CORE
Bella CORE
5820 Live Oak Parkway
New on HomeAdvisorNew on Angi
Approved Pro
Bella CORE
5820 Live Oak Parkway
New on AngiNew on HomeAdvisor
Approved Pro
10 years of experience
Free onsite estimate

Bella CORE’s team of design experts have curated one-of-a-kind products to elevate the visual experience of your bathroom. These products will transform your space into a spa oasis that you enjoy spending time in. Call us today to set your appointment to design your new shower!

Bella CORE’s team of design experts have curated one-of-a-kind products to elevate the visual experience of your bathroom. These products will transform your space into a spa oasis that you enjoy spending time in. Call us today to set your appointment to design your new shower!


Avatar for Appliance Repair Solution of Atlanta, LLC
Appliance Repair Solution of Atlanta, LLC
381 Searchlight Dr
4.57(
67
)
Approved Pro
Appliance Repair Solution of Atlanta, LLC
381 Searchlight Dr
4.57(
67
)
Approved Pro
Customers say: Quick response
491 local quotes requested
7 years of experience

Our goal is to satisfy our customers with great customer service and affordable prices. Professionalism, experience and customer care in good manner are three key factors to achieve leading position in our business. It is leading our company to success! We have technicians 5+ years experience and focused on residential appliance repair and installation.

"They said the dishwasher heater needs to be changed and they did replace it with a new one but I end up with water leak and still the dishes are not clean or dry."

Martha G on September 2024

Our goal is to satisfy our customers with great customer service and affordable prices. Professionalism, experience and customer care in good manner are three key factors to achieve leading position in our business. It is leading our company to success! We have technicians 5+ years experience and focused on residential appliance repair and installation.

"They said the dishwasher heater needs to be changed and they did replace it with a new one but I end up with water leak and still the dishes are not clean or dry."

Martha G on September 2024


Avatar for Rooter Pro Plumbing GA
Rooter Pro Plumbing GA
840 Pine Manor
5.00(
1
)
Approved Pro
Rooter Pro Plumbing GA
840 Pine Manor
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3759 local quotes requested

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.

"I am leaving a review before the work is even started. I received a quote from another company and scheduled the work. When they showed up, they tried to triple the cost. I told them to get out of my house. I then called Rooter Pro Plumbing to come out and give me a quote. Jerimey Jackson came out and looked over the situation and then put me on a conference call with the owner. They agreed to match the quote I received from the other company even though it was seriously underbid. They are a great company to work with. They are scheduled to come out this week to start the project. I would highly recommend a company with such integrity in the employees and the owner. I look forward to working with them."

Chris C on November 2024

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.

"I am leaving a review before the work is even started. I received a quote from another company and scheduled the work. When they showed up, they tried to triple the cost. I told them to get out of my house. I then called Rooter Pro Plumbing to come out and give me a quote. Jerimey Jackson came out and looked over the situation and then put me on a conference call with the owner. They agreed to match the quote I received from the other company even though it was seriously underbid. They are a great company to work with. They are scheduled to come out this week to start the project. I would highly recommend a company with such integrity in the employees and the owner. I look forward to working with them."

Chris C on November 2024

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Tankless water heater installations FAQs

Yes, although they have a higher upfront cost compared to traditional units, tankless water heaters can be worth the investment for many homeowners. They heat water on demand, eliminating standby energy losses and leading to 24% to 34% greater energy efficiency for homes using up to 41 gallons of hot water daily. Tankless units last longer—around 20 years with proper maintenance—and require less space than traditional units. They also reduce the risk of leaks and water damage since there's no tank to corrode and fail.

Tankless water heaters, including gas-powered models, do require electricity to operate components like the ignition and control systems. This means they won't function during a power outage. If you live in an area prone to outages and want to ensure a continuous hot water supply, consider installing a battery backup system or generator to keep your tankless water heater running when the power goes out.

You should set your tankless water heater to 120 degrees Fahrenheit for optimal safety and efficiency, as recommended by the U.S. Consumer Product Safety Commission. Setting the temperature at 120 degrees prevents scalding accidents, particularly for children and the elderly, and reduces energy consumption. Temperatures above 140 degrees increase the risk of burns and promote mineral buildup, which can decrease the system's efficiency.

A 20-minute shower uses 50 to 60 gallons of water, assuming a flow rate of 2.5 to 3 gallons per minute. A typical whole-house tankless water heater can produce 4 to 8 gallons of hot water per minute, providing continuous hot water for long showers. By installing low-flow showerheads and reducing shower time, you decrease water consumption and energy costs, maximizing the efficiency of your tankless system.

With proper maintenance, a tankless water heater lasts around 20 years, significantly longer than conventional tank water heaters, which last between 8 and 12 years. Regular inspections and timely repairs can further extend its lifespan. To keep your tankless system operating efficiently, have it inspected or serviced annually and address any minor issues promptly by contacting a local tankless water heater repair service.

The homeowners guide to tankless water heater installations
From average costs to expert advice, get all the answers you need to get your job done.
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