Top-rated water heater pros.

Get matched with top water heater pros in Union, MO

Enter your ZIP and get matched with up to 5 pros

Find Water heater pros in Union

Avatar for Mr. Rooter Plumbing of Franklin Co

Mr. Rooter Plumbing of Franklin Co

4.80(
5
)
Approved Pro

Mr. Rooter Plumbing of Franklin Co

4.80(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 local quotes requested

At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.

At Mr. Rooter® Plumbing every customer’s individual needs are important. Whether it’s a simple sink clog or a damaged sewer line, you can count on a Mr. Rooter plumber to take care of your plumbing needs – day or night – with never an overtime charge. Our professional service, quality products and honest, up-front pricing make Mr. Rooter the best value in plumbing services nationwide. Mr. Rooter is ready for all emergency plumbing issues, from clogged drains and sewage backups to frozen pipes and leaking water heaters. You can count on an expert diagnosis from Mr. Rooter with our camera inspection tools. Then we’ll fix it right the first time, whether it takes HydroScrub® drain cleaning or trenchless pipe repair, with courteous smiles on our faces. There's a reason they call us Mr.® Call your local Mr. Rooter today.


Avatar for Tri-State Water, Power & Air

Tri-State Water, Power & Air

3.96(
24
)
Approved Pro

Tri-State Water, Power & Air

3.96(
24
)
Approved Pro
Customers say: Super punctual
375 local quotes requested
33 years of experience

In business since 1992, Tri-State prides itself on providing top notch services and products to it's many customers. Our Service Plumbing team is ready and willing to tackle your project - be the need immediate or not. Simply reach out and we will dispatch a technician immediately to provide a quote and solve your problem!

"Only rating 1 because it doesn't go lower. Had a new unit installed end of Sept 24. First time power goes out on 11/5, no electricity. When tri state sells you a product, they pitch their amazing customer service with all these guarnatees of knowing when your unit is out before you know and having someone there within 24 hours etc. Well, the first call we make we are told it will be the end of Nov to get someone out to look at it. 3 weeks. Nobody shows up. Then we get a call that says "your appointment on Dec 12 has been canceled and the earliest we can get to you is Jan 16th. This is 2.5 months wait to get service to fix a nearly $20k unit, that is upcharged because of the excellent service. You can't get anyone to answer your call. you wait on hold for 20 minutes, then have to leave a voicemail in which you will not get called back. Based on my experience, find someone else and pay less. Even if the service is bad, which it can't be worse than this, you save money! @kohler"

Jerry B on December 2024

In business since 1992, Tri-State prides itself on providing top notch services and products to it's many customers. Our Service Plumbing team is ready and willing to tackle your project - be the need immediate or not. Simply reach out and we will dispatch a technician immediately to provide a quote and solve your problem!

"Only rating 1 because it doesn't go lower. Had a new unit installed end of Sept 24. First time power goes out on 11/5, no electricity. When tri state sells you a product, they pitch their amazing customer service with all these guarnatees of knowing when your unit is out before you know and having someone there within 24 hours etc. Well, the first call we make we are told it will be the end of Nov to get someone out to look at it. 3 weeks. Nobody shows up. Then we get a call that says "your appointment on Dec 12 has been canceled and the earliest we can get to you is Jan 16th. This is 2.5 months wait to get service to fix a nearly $20k unit, that is upcharged because of the excellent service. You can't get anyone to answer your call. you wait on hold for 20 minutes, then have to leave a voicemail in which you will not get called back. Based on my experience, find someone else and pay less. Even if the service is bad, which it can't be worse than this, you save money! @kohler"

Jerry B on December 2024


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

4.48(
965
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

4.48(
965
)
Approved Pro
Customers say: Super punctual
465 local quotes requested
90 years of experience

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.

"Very professional service, and great customer service."

Janet H on April 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.

"Very professional service, and great customer service."

Janet H on April 2025


Midtown Home Improvements, Inc. (St. Louis)*

4.78(
1,775
)
Approved Pro

Midtown Home Improvements, Inc. (St. Louis)*

4.78(
1,775
)
Approved Pro
Customers say: True professional
33 years of experience
Free onsite estimate

Midtown Home Improvements is your neighborhood home improvement specialist. Whether you are looking for energy savings with Triple Pane Windows, a new low maintenance PVC Cellular deck, a maintenance free vinyl fence, or the thickest permanent siding, you can trust the experts at Midtown. Midown Home Improvements, located in Wentzville Missouri, also offers full or partial remodeling of your Kitchen and Bathroom. We believe in providing superior products from only the finest manufacturers. Give us a call for more information and a free quote! (636)379-8889

"Response was overall proactive. Sales expertise in estimating jobs needs improvement. Overall material and execution of works is of the highest quality and standard."

Dustin S on July 2025

Midtown Home Improvements is your neighborhood home improvement specialist. Whether you are looking for energy savings with Triple Pane Windows, a new low maintenance PVC Cellular deck, a maintenance free vinyl fence, or the thickest permanent siding, you can trust the experts at Midtown. Midown Home Improvements, located in Wentzville Missouri, also offers full or partial remodeling of your Kitchen and Bathroom. We believe in providing superior products from only the finest manufacturers. Give us a call for more information and a free quote! (636)379-8889

"Response was overall proactive. Sales expertise in estimating jobs needs improvement. Overall material and execution of works is of the highest quality and standard."

Dustin S on July 2025


"I had a horrible experience with Maris Home Improvements. I don't recommend them. You are better off going with Window World!"

Monica C on May 2025

Family owned and operated, we perform. With over 20 years of experience we know what it takes to make you happy. We are local in Chesterfield and our top priority is a satisfied customer.

"I had a horrible experience with Maris Home Improvements. I don't recommend them. You are better off going with Window World!"

Monica C on May 2025


Park Hills Heating and Cooling

New on AngiNew on Angi
Approved Pro

Park Hills Heating and Cooling

New on AngiNew on Angi
Approved Pro

We take great pride in our experience, expertise, quality and customer service, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today! provide to meet the consumer's needs. It is our mission to provide excellent work

We take great pride in our experience, expertise, quality and customer service, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today! provide to meet the consumer's needs. It is our mission to provide excellent work


Avatar for Taylor Construction

Taylor Construction

5.00(
9
)
Approved Pro

Taylor Construction

5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 local quotes requested

Taylor Construction has been in the home remodeling business for over 20 years. We pride ourselves on providing quality work at competitive prices and integrity is an essential component in planning your remodeling project. Communication is key and we work with the homeowner from start to finish and we are on the job until it's done! We offer emergency repair services and warranties on work performed. Taylor Construction is licensed and insured for your protection. Please see our website www.btaylorconstruction.com for more details on what we offer. Taylor Construction has supported local community activities like Cedar Hill Peace Pantry, Northwest Athletic Association, Northwest High School Baseball, Habitat for Humanity, Feed My People, Girl Scouts of Eastern Missouri Troop 58 and now God's Green Acres Association. The owner, Bryan Taylor is a devoted family man, He and his wife are active in Faith Community and with their children's activites and school work.

"Had a small bathroom that I wanted to put a lot of new things technology items in. He took the challenge on with no complaints and gave us a beautiful new bathroom. Communications was great. He even watched my dogs when I had to run an errand. Would highly recommend and will definitely be using for more projects in the future! Thanks for all you did Bryan!"

Ashton O on February 2025

Taylor Construction has been in the home remodeling business for over 20 years. We pride ourselves on providing quality work at competitive prices and integrity is an essential component in planning your remodeling project. Communication is key and we work with the homeowner from start to finish and we are on the job until it's done! We offer emergency repair services and warranties on work performed. Taylor Construction is licensed and insured for your protection. Please see our website www.btaylorconstruction.com for more details on what we offer. Taylor Construction has supported local community activities like Cedar Hill Peace Pantry, Northwest Athletic Association, Northwest High School Baseball, Habitat for Humanity, Feed My People, Girl Scouts of Eastern Missouri Troop 58 and now God's Green Acres Association. The owner, Bryan Taylor is a devoted family man, He and his wife are active in Faith Community and with their children's activites and school work.

"Had a small bathroom that I wanted to put a lot of new things technology items in. He took the challenge on with no complaints and gave us a beautiful new bathroom. Communications was great. He even watched my dogs when I had to run an errand. Would highly recommend and will definitely be using for more projects in the future! Thanks for all you did Bryan!"

Ashton O on February 2025


Avatar for Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

4.30(
577
)
Approved Pro

Neli Virtual Appliance Repair

4.30(
577
)
Approved Pro
Customers say: Super punctual
30658 local quotes requested
9 years of experience

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Super helpful"

Michele H on November 2025

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Super helpful"

Michele H on November 2025


We specialize in all around home repair, hvac and custom sheet metal fabrication, maintenance, and improvements. The safety and investment of one's home is our top priority.


Inside And Out Plumbing

No reviews yet

Inside And Out Plumbing

No reviews yet
5 years of experience

With 20 years experience on our side. We are prepared to handle any Drain Cleaning, Camera Inspections, and Plumbing job that comes our way. We are a 100 % Complete Plumbing Service. New Construction, Repair Remodel, and 24 hr emergency service. Any problem under the roof or under the ground. We Can Fix it!

With 20 years experience on our side. We are prepared to handle any Drain Cleaning, Camera Inspections, and Plumbing job that comes our way. We are a 100 % Complete Plumbing Service. New Construction, Repair Remodel, and 24 hr emergency service. Any problem under the roof or under the ground. We Can Fix it!

...
Showing 1-10 of 57
Water Heaters questions, answered by experts

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.

In most municipalities, a license is not mandatory for water heater installation or replacement. However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues. You can use our state licensing tool to find out if a contractor you’re considering in your area holds a plumber’s license.

Due to the high temperature, using stainless steel vent pipes for your tankless water heater’s exhaust vent is best. Also, it is safe to use a flexible vent duct as the exhaust fan. If installing the exhaust fan yourself, make sure you are using heat-resistant silicon to connect the exhaust vent and the duct on your water heater.

Tank-style hot water heaters need replacing about every six to 15 years, while a tankless model can last 20 years or more. Over time, water heaters fill up with sediment that can start causing issues. If your unit is ten years old, start thinking about a possible replacement. Flushing your tank-style water heater annually and having routine maintenance done can increase the life span of the unit.

Converting a gas water heater to an electric one can cost between $870 and $4,100, depending on the installation scope, plumbing and electrical needs, and the water heater model. However, it’s always better to contact a local pro for a more accurate quote. Also, since natural gas is cheaper than electricity in most regions, you should prepare yourself for a higher monthly cost after the initial conversion.

The Union, MO homeowners’ guide to water heater services

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"