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Water heater installers and replacers in Oxon Hill

Avatar for Modern Plumbing Systems, LLC
Modern Plumbing Systems, LLC
1422 Washington Ave.
4.90(
492
)
Approved Pro
Modern Plumbing Systems, LLC
1422 Washington Ave.
4.90(
492
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
20 years of experience

Modern Plumbing Systems strives to be your best option when it comes to plumbing service. It is our business to deliver to your home a LICENSED, PROFESSIONAL PLUMBER that makes your service experience the best it can be. All of our technicians are highly trained, with a minimum of 10 years plumbing experience. Please call any time to speak with a certified professional plumber. We are standing by to help you now.

"Great customer service, fast response and very reasonable price. Will definitely use them again."

John Y on May 2025

Modern Plumbing Systems strives to be your best option when it comes to plumbing service. It is our business to deliver to your home a LICENSED, PROFESSIONAL PLUMBER that makes your service experience the best it can be. All of our technicians are highly trained, with a minimum of 10 years plumbing experience. Please call any time to speak with a certified professional plumber. We are standing by to help you now.

"Great customer service, fast response and very reasonable price. Will definitely use them again."

John Y on May 2025


Avatar for John C. Flood of Virginia Inc.
John C. Flood of Virginia Inc.
6430 General Green Way
4.54(
37
)
Approved Pro
John C. Flood of Virginia Inc.
6430 General Green Way
4.54(
37
)
Approved Pro
Customers say: True professional
41 local quotes requested
105 years of experience

With over 120 years of experience serving the Maryland, Northern Virginia, and Washington, D.C. regions, the John C. Flood team has earned a reputation for providing excellent repair, service, and installation for HVAC, plumbing, electrical, and home remodeling. If you are looking for an HVAC contractor, plumber, electrician, or remodeling crew in the Maryland, Northern Virginia, or metro D.C. regions, trust John C. Flood to take care of the job. We've been serving our customers with the best repair and installation services and are available with regular rates 7 days a week. Our goal is to keep you and your family comfortable throughout the year, and you can count on us to do the job right the first time. Learn more about the services we offer or contact us online.

"Daniel completed our annual AC check up, servicing both the interior and exterior units. He made excellent recommendations, patiently explaining the options to this layman. The communications prior to and after the appointment were excellent -- timely and detailed."

Mary Beth C on April 2025

With over 120 years of experience serving the Maryland, Northern Virginia, and Washington, D.C. regions, the John C. Flood team has earned a reputation for providing excellent repair, service, and installation for HVAC, plumbing, electrical, and home remodeling. If you are looking for an HVAC contractor, plumber, electrician, or remodeling crew in the Maryland, Northern Virginia, or metro D.C. regions, trust John C. Flood to take care of the job. We've been serving our customers with the best repair and installation services and are available with regular rates 7 days a week. Our goal is to keep you and your family comfortable throughout the year, and you can count on us to do the job right the first time. Learn more about the services we offer or contact us online.

"Daniel completed our annual AC check up, servicing both the interior and exterior units. He made excellent recommendations, patiently explaining the options to this layman. The communications prior to and after the appointment were excellent -- timely and detailed."

Mary Beth C on April 2025


Avatar for Atlantic Blue Water Services
Atlantic Blue Water Services
1802 Baltimore Boulevard
4.80(
109
)
Approved Pro
Atlantic Blue Water Services
1802 Baltimore Boulevard
4.80(
109
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
120 local quotes requested

Atlantic Blue Water Services provides the highest quality and most specialized home water treatment systems in today's market. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Don't settle for anything less than the best for your home or business. Experience the difference with Atlantic Blue Water Services. Contact us now for a free, no-obligation water test and discover why we are the preferred choice for clean water solutions in Maryland. Our experienced team is ready to answer your questions and guide you toward the best water solution for your home or business. We invite you to trust us with your water needs! Water Testing - Water Treatment - Water Softening - Well Water - City Water - Well Pumps - Tanks - Drinking Systems - Reverse Osmosis - Residential & Commercial

"These guys - wow. Even though my address was outside their range for same-day service, they came out anyway (and quickly). They quickly diagnosed the issue and offered solutions & recommendations. Very prompt, very professional, will absolutely be using them going forward. A"

Don P on September 2024

Atlantic Blue Water Services provides the highest quality and most specialized home water treatment systems in today's market. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Don't settle for anything less than the best for your home or business. Experience the difference with Atlantic Blue Water Services. Contact us now for a free, no-obligation water test and discover why we are the preferred choice for clean water solutions in Maryland. Our experienced team is ready to answer your questions and guide you toward the best water solution for your home or business. We invite you to trust us with your water needs! Water Testing - Water Treatment - Water Softening - Well Water - City Water - Well Pumps - Tanks - Drinking Systems - Reverse Osmosis - Residential & Commercial

"These guys - wow. Even though my address was outside their range for same-day service, they came out anyway (and quickly). They quickly diagnosed the issue and offered solutions & recommendations. Very prompt, very professional, will absolutely be using them going forward. A"

Don P on September 2024


Avatar for Constellation Home
Constellation Home
1409-A Tangier Dr
4.79(
7
)
Approved Pro
Constellation Home
1409-A Tangier Dr
4.79(
7
)
Approved Pro
Customers say: True professional
60 local quotes requested
33 years of experience

Constellation Home provides high-quality, personal service that you've depended on for decades. Constellation Home is Maryland's go-to home service provider your water heater installation needs. Our team will arrive on time, in uniform and ready to get the job done right the first time. All backed by our 100% satisfaction guarantee. We Know More, We Do More.

"nothing to add"

Rion S on May 2025

Constellation Home provides high-quality, personal service that you've depended on for decades. Constellation Home is Maryland's go-to home service provider your water heater installation needs. Our team will arrive on time, in uniform and ready to get the job done right the first time. All backed by our 100% satisfaction guarantee. We Know More, We Do More.

"nothing to add"

Rion S on May 2025


Avatar for Family Fire Service and Plumbing LLC
Family Fire Service and Plumbing LLC
5006 Aspen Hill Rd
4.33(
6
)
Approved Pro
Family Fire Service and Plumbing LLC
5006 Aspen Hill Rd
4.33(
6
)
Approved Pro
Customers say: Quick response
24 local quotes requested
2 years of experience

We are in the industry providing plumbing and fire protection systems to residents and businesses in and around Maryland for over 22 years. During all this time we were working to improve customer satisfaction before, during and after the service based on our agile management, trained team and quality materials. Now, years of experience in the market allows us to guarantee that our work will be of the highest quality.

"Family Fire Service did a great job replacing my water heater! They were quick, attentive, and thorough. Excellent work! "

Hassan C on May 2025

We are in the industry providing plumbing and fire protection systems to residents and businesses in and around Maryland for over 22 years. During all this time we were working to improve customer satisfaction before, during and after the service based on our agile management, trained team and quality materials. Now, years of experience in the market allows us to guarantee that our work will be of the highest quality.

"Family Fire Service did a great job replacing my water heater! They were quick, attentive, and thorough. Excellent work! "

Hassan C on May 2025


Avatar for Prime Plumbing, LLC
Prime Plumbing, LLC
7617 Baltimore Annapolis Blvd.
4.87(
20
)
Approved Pro
Prime Plumbing, LLC
7617 Baltimore Annapolis Blvd.
4.87(
20
)
Approved Pro
Customers say: Quick response
282 local quotes requested
13 years of experience

Prime Plumbing is proud to be a family owned, locally operated business that has been working in the community since 2012! With years of experience and unmatched expertise we can help with any and all of your plumbing needs. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. Our customers can count on our techs being timely, tidy and when the job is done that you will be 100% satisfied with the work completed. When you need a plumber, think Prime Plumbing and let us show you why our customers become customers for life.

"Fair"

Clyde M on May 2025

Prime Plumbing is proud to be a family owned, locally operated business that has been working in the community since 2012! With years of experience and unmatched expertise we can help with any and all of your plumbing needs. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. Our customers can count on our techs being timely, tidy and when the job is done that you will be 100% satisfied with the work completed. When you need a plumber, think Prime Plumbing and let us show you why our customers become customers for life.

"Fair"

Clyde M on May 2025


Avatar for Mr. Rooter of Maryland
Mr. Rooter of Maryland
3701 Commerce Drive, Suite 105
4.46(
888
)
Approved Pro
Mr. Rooter of Maryland
3701 Commerce Drive, Suite 105
4.46(
888
)
Approved Pro
Customers say: Super punctual
116 local quotes requested
57 years of experience

Dealing with a busted toilet? Can’t seem to unclog that drain? It’s time to call on your local Mr. Rooter® Plumbing. Since 1968 our full service residential and commercial plumbers have been available around-the-clock to tackle your plumbing service needs! We never charge extra, always stand behind our work, and provide upfront pricing so you know exactly what you are paying for ahead of time. You can count on our plumbers to deliver fast, affordable, and reliable plumbing services throughout the state of Maryland. Call us today, we look forward to serving you for years to come!

"Quick and reliable service"

Jennifer I on May 2025

Dealing with a busted toilet? Can’t seem to unclog that drain? It’s time to call on your local Mr. Rooter® Plumbing. Since 1968 our full service residential and commercial plumbers have been available around-the-clock to tackle your plumbing service needs! We never charge extra, always stand behind our work, and provide upfront pricing so you know exactly what you are paying for ahead of time. You can count on our plumbers to deliver fast, affordable, and reliable plumbing services throughout the state of Maryland. Call us today, we look forward to serving you for years to come!

"Quick and reliable service"

Jennifer I on May 2025


Avatar for HotWaterExpress.com, Inc.
HotWaterExpress.com, Inc.
3907 Lawrence Street
4.60(
248
)
Approved Pro
HotWaterExpress.com, Inc.
3907 Lawrence Street
4.60(
248
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
12 local quotes requested

Washington Home Doctors, Inc. T/A HotWaterExpress.com established in 1986 is a locally and family owned, fully licensed one stop shop for most of your home repair needs. We specialize in residential and commercial Full Water Heater Service! Other areas of expertise are General Plumbing, Heating & Air conditioning, and home improvements. Washington Home Doctors holds Home Improvement Contractor Licenses for Washington D.C. & Maryland State, a Master Plumbing License for W.S.S.C. & Maryland and Virginia jurisdictions, an HVAC License and we are a certified MBE (Minority Business Enterprise) company. We would love an opportunity to be your go to home repair services provider.

"They were very knowledgeable and courteous with pleasant personalities. They also were able to give me a quote over the phone. They did an excellent job at a great rate and were very prompt. I definitely would use them again!"

Cheryll L on May 2025

Washington Home Doctors, Inc. T/A HotWaterExpress.com established in 1986 is a locally and family owned, fully licensed one stop shop for most of your home repair needs. We specialize in residential and commercial Full Water Heater Service! Other areas of expertise are General Plumbing, Heating & Air conditioning, and home improvements. Washington Home Doctors holds Home Improvement Contractor Licenses for Washington D.C. & Maryland State, a Master Plumbing License for W.S.S.C. & Maryland and Virginia jurisdictions, an HVAC License and we are a certified MBE (Minority Business Enterprise) company. We would love an opportunity to be your go to home repair services provider.

"They were very knowledgeable and courteous with pleasant personalities. They also were able to give me a quote over the phone. They did an excellent job at a great rate and were very prompt. I definitely would use them again!"

Cheryll L on May 2025


Avatar for Brian B Quick
Brian B Quick
10739 Tucker Street
5.00(
4
)
Approved Pro
Brian B Quick
10739 Tucker Street
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Brian B Quick s a well established company in the Washington DC/Baltimore region. We offer over 100 years of experience total on our Team. Our business approach is to make clients lives better; one solution at a time. We have over 50 5 star reviews! Our focus is customer service as well as professionalism. We pride ourselves on integrity at all times. We are a 4th generation Master Plumbing company! No other company can make that claim in the DC Metro area! If tired of the lying; try Brian. Call us for your next job; you will not be disappointed.

"fantastic ! did a great job polite"

Jim I on September 2022

Brian B Quick s a well established company in the Washington DC/Baltimore region. We offer over 100 years of experience total on our Team. Our business approach is to make clients lives better; one solution at a time. We have over 50 5 star reviews! Our focus is customer service as well as professionalism. We pride ourselves on integrity at all times. We are a 4th generation Master Plumbing company! No other company can make that claim in the DC Metro area! If tired of the lying; try Brian. Call us for your next job; you will not be disappointed.

"fantastic ! did a great job polite"

Jim I on September 2022


Avatar for Remedy Plumbing and Drain Cleaning
Remedy Plumbing and Drain Cleaning
8705 Ashcroft Dr
4.90(
60
)
Approved Pro
Remedy Plumbing and Drain Cleaning
8705 Ashcroft Dr
4.90(
60
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2419 local quotes requested

We are a family-owned business. We listen to your needs and offer quality plumbing and specialized in drain solutions. The knowledge and experience acquired in 15 years is enough to get your systems back in working order in no time. No matter what your plumbing or drain issue is, we will provide the solution quickly. No job is too small or big. Please call us for a free estimate today 240-918-4809

"Remedy had to take my toilet apart to fix my clog now I have use of my bathroom again. He was very friendly, explained everything and am definitely recommending this company to everyone I know. I will use Remedy again if another plumbing problem occurs."

Joanne S on February 2024

We are a family-owned business. We listen to your needs and offer quality plumbing and specialized in drain solutions. The knowledge and experience acquired in 15 years is enough to get your systems back in working order in no time. No matter what your plumbing or drain issue is, we will provide the solution quickly. No job is too small or big. Please call us for a free estimate today 240-918-4809

"Remedy had to take my toilet apart to fix my clog now I have use of my bathroom again. He was very friendly, explained everything and am definitely recommending this company to everyone I know. I will use Remedy again if another plumbing problem occurs."

Joanne S on February 2024

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Water heater installations and replacements FAQs

You'll need an expansion tank if your home has a closed water system, which is standard in newer homes or those with backflow preventers or pressure regulators. Expanding hot water has nowhere to go in closed systems, creating potentially damaging pressure. The expansion tank provides space for this expanded water, protecting your plumbing system and water heater from premature failure. Many local building codes now require expansion tanks, and some water heater warranties may be voided without one.

For a standard 50-gallon water heater, a two-gallon expansion tank is sufficient. This sizing assumes normal household water pressure between 40 and 60 psi. If your home has higher water pressure (60 to 80 psi), consider upgrading to a slightly larger tank for added protection. The expansion tank's purpose is to accommodate the increased volume that occurs when cold water heats up, which is proportional to your water heater's capacity.

Watch for signs like dripping water around the tank, fluctuating water pressure throughout your home, or unusual noises in your plumbing system. A properly functioning expansion tank should feel light when tapped on the bottom—if it feels heavy or waterlogged, the internal bladder has likely failed. Other indicators include frequent triggering of your temperature and pressure relief valve, visible corrosion on the tank, or unexplained increases in your water bill, suggesting hidden leaks.

Most expansion tanks have a service life of five to 10 years, though some may last up to 12 years or more with proper maintenance. Factors affecting lifespan include water quality, system pressure, installation quality, and tank construction. Hard water areas often see shorter lifespans due to mineral buildup. Regular maintenance checks can help identify potential issues before complete failure. When your water heater is due for replacement, it's wise to replace the expansion tank simultaneously, even if it hasn't failed yet.

A 30-gallon water heater needs an expansion tank if your home has a closed plumbing system. The need for an expansion tank is determined by your plumbing system type rather than water heater size. Even smaller water heaters create thermal expansion when heating water. If your home has a backflow preventer, pressure regulator, or check valve on the main water line, you have a closed system that requires an expansion tank. Check your local plumbing codes, as many jurisdictions now mandate expansion tanks regardless of water heater size.

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