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Water heater installers and replacers in Rockville
Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. When you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.
"The gentleman that work this business go above and beyond to make the best suggestions for they work required. This is the second time I have hired them. My sub pump went after and more rain was coming they came out with 2 hours to fix the problem. Extremely professional man. I will be er use any other plumbing business other than Pohlman. I highly recommend if you have a plumping issue."
Georgette T on January 2024
Pohlman Plumbing is a local, family-owned and -operated full-service plumbing and HVAC company serving the Baltimore metro area. Founded in 2008, our professional and friendly customer service plus our top-notch skills have made us one of the most trusted local plumbers in Baltimore. When you choose to work with Pohlman Plumbing, you can have peace of mind knowing we always stand by the Pohlman Promise: fast service, at a fair price, and done right the first time.
"The gentleman that work this business go above and beyond to make the best suggestions for they work required. This is the second time I have hired them. My sub pump went after and more rain was coming they came out with 2 hours to fix the problem. Extremely professional man. I will be er use any other plumbing business other than Pohlman. I highly recommend if you have a plumping issue."
Georgette T on January 2024
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
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
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.
"My water heater started leaking on a Sunday. I reached out to Family Fire Service and they responded immediately. They had a new water heater out to my house the next day and installed in a few hours. The supervisor and the tech worked seamlessly to have us up and running. They provided quality service and at a very competitive price. I highly recommend Family Fire Service and Plumbing. KC"
Khalid C on June 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.
"My water heater started leaking on a Sunday. I reached out to Family Fire Service and they responded immediately. They had a new water heater out to my house the next day and installed in a few hours. The supervisor and the tech worked seamlessly to have us up and running. They provided quality service and at a very competitive price. I highly recommend Family Fire Service and Plumbing. KC"
Khalid C on June 2025
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
With over 14 years of experience, we have the skills, knowledge, and expertise necessary to handle any commercial or residential project, no matter the size. Our expertise also includes electricity, plumbing, and carpentry. We provide the most affordable services to ensure that we can work within your budget to provide you with the highest quality remodeling and construction services. Our work is not complete until you are 100% satisfied. If you are not completely satisfied, we will continue to work at no additional cost to you. We will not collect the remaining balance due until you are completely satisfied. We will check all work, as well, to ensure that all of our quality standards have been met. We are committed to providing quality work that you will be satisfied with for years to come.
"We have worked with Millennium on several projects for our older home. Refinishing a basement that was flooded, replacing cabinetry that had water damage, tiling a large kitchen backsplash, replacing doors, bathroom fans, sinks and building an elevated deck in our backyard. The crew has always been timely, clean and efficient. Dan has always worked with me to make good choices on materials with careful considerations of cost and quality. Their work is great, prices are reasonable and they have been willing to tackle some complicated projects in a non-standard home. I highly recommend them."
Signy W on September 2023
With over 14 years of experience, we have the skills, knowledge, and expertise necessary to handle any commercial or residential project, no matter the size. Our expertise also includes electricity, plumbing, and carpentry. We provide the most affordable services to ensure that we can work within your budget to provide you with the highest quality remodeling and construction services. Our work is not complete until you are 100% satisfied. If you are not completely satisfied, we will continue to work at no additional cost to you. We will not collect the remaining balance due until you are completely satisfied. We will check all work, as well, to ensure that all of our quality standards have been met. We are committed to providing quality work that you will be satisfied with for years to come.
"We have worked with Millennium on several projects for our older home. Refinishing a basement that was flooded, replacing cabinetry that had water damage, tiling a large kitchen backsplash, replacing doors, bathroom fans, sinks and building an elevated deck in our backyard. The crew has always been timely, clean and efficient. Dan has always worked with me to make good choices on materials with careful considerations of cost and quality. Their work is great, prices are reasonable and they have been willing to tackle some complicated projects in a non-standard home. I highly recommend them."
Signy W on September 2023
We specialize in all phases of remodeling for your home, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call to schedule a free estimate today!
"We recently hired this company to remodel our kitchen and bathroom, update our living room flooring, and refinish our staircase. Overall, we’re very happy with the results! Kitchen and Bathroom Remodel: Both spaces turned out beautifully. The team helped us select materials that fit our style and budget. The kitchen feels more functional and modern, and the bathroom looks refreshed with the updated fixtures and tile. Living Room Flooring: The new floors look fantastic and completely change the feel of the space. The installation was clean and precise, and they made sure everything was done right. Stairs: The staircase update tied everything together nicely. They replaced the old steps and railing, giving the space a much-needed facelift. The team was professional, communicative, and stuck to the timeline and budget we agreed on. We appreciated their attention to detail and the effort they put into making sure we were satisfied with the work. If you’re looking for a reliable company for home renovations, I’d recommend giving them a call. They did a great job on our project!"
Lucky b on December 2024
We specialize in all phases of remodeling for your home, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call to schedule a free estimate today!
"We recently hired this company to remodel our kitchen and bathroom, update our living room flooring, and refinish our staircase. Overall, we’re very happy with the results! Kitchen and Bathroom Remodel: Both spaces turned out beautifully. The team helped us select materials that fit our style and budget. The kitchen feels more functional and modern, and the bathroom looks refreshed with the updated fixtures and tile. Living Room Flooring: The new floors look fantastic and completely change the feel of the space. The installation was clean and precise, and they made sure everything was done right. Stairs: The staircase update tied everything together nicely. They replaced the old steps and railing, giving the space a much-needed facelift. The team was professional, communicative, and stuck to the timeline and budget we agreed on. We appreciated their attention to detail and the effort they put into making sure we were satisfied with the work. If you’re looking for a reliable company for home renovations, I’d recommend giving them a call. They did a great job on our project!"
Lucky b on December 2024
Douglas Plumbing, Heating & Air Conditioning, LLC, a Maryland limited liability company, trading as Douglas & Son Services (hereinafter referred to as “Douglas & Son Services”) specializes in, but is not limited to, providing residential and light commercial plumbing, gas, heating and air conditioning services in Washington, D.C., Maryland and Virginia
"They are very informed about systems throughout the house and are active educators for their clients for MAINTENANCE and saving money! The family owned business is impressive, as their son is ALREADY a JOURNEYMAN in both plumbing and I believe soon to be HVAC expert as well. They are serious about their knowledge and offerings. - Erin Fussell"
Erin L on January 2025
Douglas Plumbing, Heating & Air Conditioning, LLC, a Maryland limited liability company, trading as Douglas & Son Services (hereinafter referred to as “Douglas & Son Services”) specializes in, but is not limited to, providing residential and light commercial plumbing, gas, heating and air conditioning services in Washington, D.C., Maryland and Virginia
"They are very informed about systems throughout the house and are active educators for their clients for MAINTENANCE and saving money! The family owned business is impressive, as their son is ALREADY a JOURNEYMAN in both plumbing and I believe soon to be HVAC expert as well. They are serious about their knowledge and offerings. - Erin Fussell"
Erin L on January 2025
LICENSED & INSURED 20+ YEARS EXPERIENCE PROUDLY SERVING VIRGINIA, MARYLAND, & THE DC METROPOLITAN AREA HOME REMODELING: ADDITIONS, MAJOR HOME REPAIRS, BATHROOM REMODELING, KITCHEN REMODELING, MAJOR RENOVATIONS- MULTIPLE ROOMS PAINTING: INTERIOR & EXTERIOR PAINTING AND MUCH MORE YOU NAME IT!!
"I contacted RC Home Renovations to repair the soffit on our front porch. Richard came out to review the work and provided me a quote via email which I agreed to and signed. I was told that the work would be completed on a Saturday (July 17th) which was 11 days away from the date of the signed contract. I received a text around 8am Saturday morning (THE MORNING OF!) stating that they couldn't locate the plywood for the soffit so they have to order it but its not coming in until the following week. I text Richard the following Wednesday asking for an update....no response. I followed up with another text the following Monday...no response. I never heard anything back so I hired someone else to complete the job which is being completed as I type this."
Gustavo B on July 2021
LICENSED & INSURED 20+ YEARS EXPERIENCE PROUDLY SERVING VIRGINIA, MARYLAND, & THE DC METROPOLITAN AREA HOME REMODELING: ADDITIONS, MAJOR HOME REPAIRS, BATHROOM REMODELING, KITCHEN REMODELING, MAJOR RENOVATIONS- MULTIPLE ROOMS PAINTING: INTERIOR & EXTERIOR PAINTING AND MUCH MORE YOU NAME IT!!
"I contacted RC Home Renovations to repair the soffit on our front porch. Richard came out to review the work and provided me a quote via email which I agreed to and signed. I was told that the work would be completed on a Saturday (July 17th) which was 11 days away from the date of the signed contract. I received a text around 8am Saturday morning (THE MORNING OF!) stating that they couldn't locate the plywood for the soffit so they have to order it but its not coming in until the following week. I text Richard the following Wednesday asking for an update....no response. I followed up with another text the following Monday...no response. I never heard anything back so I hired someone else to complete the job which is being completed as I type this."
Gustavo B on July 2021
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Excellent work. Great communication and timely response. Very knowledgeable. Would hire again without hesitation."
Yasmin L on January 2025
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Excellent work. Great communication and timely response. Very knowledgeable. Would hire again without hesitation."
Yasmin L on January 2025
FAQs for water heater installation and replacement projects in Rockville, MD
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.
- Plumbing - Multiple Projects
- Shower Pan Install
- Plumbing for a Remodel or Addition - Install
- Plumbing Item Repair
- Water Heater - Repair or Service
- Sink Repair
- Steam Shower - Install
- Faucet Install or Replace
- Walk In Tub - Install or Replace
- Drain Repair
- Shower Install or Replace
- Pipe Repair
- Drain Line Breakage - Camera Locate
- Tankless Water Heater - Install
- Water Main - Install, Replace or Repair
- Sump Pump - Repair or Replace
- Drain Clog or Blockage - Clear
- Sewer Main - Clear
- Faucets, Fixtures and Pipes - Repair or Replace
- Plumbing Item Installation
- Sink Installation
- Pipe Installation
- Faucet Installation
- Gas Piping
- Whirlpool Bathtub Install or Replace
- Plumbing Multi-Item Installation
- Sewer Main - Install, Replace or Repair
- Drain Installation
- Plumbing Multi-item Repair
- Toilet Installation
- Bathtub Install or Replace
- Sump Pump or Interior Foundation Drains - Install
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