Get matched with top water heater pros in Gaithersburg, MD
There are 67 highly-rated local water heater pros.
TRUSTED BY GAITHERSBURG, MD HOMEOWNERS
4.6 
210 Verified Reviews for Water Heater Service pros in Gaithersburg, MD
*The Angi rating for Water Heater Service companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
*The HomeAdvisor rating for Water Heater Service companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
Last update on July 20, 2025
Water heater pros in Gaithersburg
About Us: Fred & Son Plumbing is a dedicated business that works diligently and efficiently to ensure that your plumbing needs are taken care of within one visit so that your home can be in its best shape. Fred & Son Plumbing is available for your multiple plumbing needs, whether these needs are required for your home, or for your residential needs. Therefore, you can trust Fred & Son Plumbing for lasting results, this is our promise! Our Business: We understand that plumbing is an essential part of everyone's life, thus we ensure that any plumbing device that you require installed into your home is in stock. For these reasons we promise to give you the best price around and also promise a one year warrenty on any plumbing job performed by one of our trained technicians. Our estimate is free and your satisfaction is guaranteed. Who We Are: Fred & Son Plumbing has over 20 years of expertise. When it comes to quality service you can count on us. We are known for being on time and keeping your home as clean as it was before our service(s). We provide a full array of Residential services for your convenience. We are locally available! Special Discounts: -Senior Citizen Discounts -Military Discounts -Teacher Discounts -New Customer Discounts *FREE ESTIMATES
"We have depended on Fred and Son for expert plumbing help for years now. Today it was Joe who did the installation, and we couldn't be happier with his work. Equally important, we appreciate how friendly, considerate, and professional he was throughout his visit. We will continue to have Fred and Joe on speed dial!"
SUSAN B on November 2022
About Us: Fred & Son Plumbing is a dedicated business that works diligently and efficiently to ensure that your plumbing needs are taken care of within one visit so that your home can be in its best shape. Fred & Son Plumbing is available for your multiple plumbing needs, whether these needs are required for your home, or for your residential needs. Therefore, you can trust Fred & Son Plumbing for lasting results, this is our promise! Our Business: We understand that plumbing is an essential part of everyone's life, thus we ensure that any plumbing device that you require installed into your home is in stock. For these reasons we promise to give you the best price around and also promise a one year warrenty on any plumbing job performed by one of our trained technicians. Our estimate is free and your satisfaction is guaranteed. Who We Are: Fred & Son Plumbing has over 20 years of expertise. When it comes to quality service you can count on us. We are known for being on time and keeping your home as clean as it was before our service(s). We provide a full array of Residential services for your convenience. We are locally available! Special Discounts: -Senior Citizen Discounts -Military Discounts -Teacher Discounts -New Customer Discounts *FREE ESTIMATES
"We have depended on Fred and Son for expert plumbing help for years now. Today it was Joe who did the installation, and we couldn't be happier with his work. Equally important, we appreciate how friendly, considerate, and professional he was throughout his visit. We will continue to have Fred and Joe on speed dial!"
SUSAN B on November 2022
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
Medert Services LLC is 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
Medert Services LLC is 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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.
"They were very prompt and very courteous. Outstanding professionalism. They rebuild my toilet with much fancy part. Fixed the leak that was damaging the wood. Everything looks great. Will be using them again in the future"
DIDI K on February 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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.
"They were very prompt and very courteous. Outstanding professionalism. They rebuild my toilet with much fancy part. Fixed the leak that was damaging the wood. Everything looks great. Will be using them again in the future"
DIDI K on February 2025
Welcome to Markool Heating & Cooling. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text, or email today, and let us get started!
Welcome to Markool Heating & Cooling. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text, or email today, and let us get started!
Agape Drain & Plumbing is a trusted, professional plumbing company dedicated to providing top-quality service with honesty and integrity. We specialize in drain cleaning, plumbing repairs, water heater services, pipe installations, and more for residential and commercial properties. Our experienced team is committed to delivering reliable solutions, fair pricing, and exceptional customer care. At Agape Drain & Plumbing, we believe in treating every customer like family, ensuring your plumbing needs are met with excellence. Contact us today for service you can trust!
"Agape Drain and Plumbing offered the best price compared to other professionals I received quotes from. Their work was excellent, and they were highly professional. I?m very satisfied with their service and would definitely recommend them!"
Nu S on March 2025
Agape Drain & Plumbing is a trusted, professional plumbing company dedicated to providing top-quality service with honesty and integrity. We specialize in drain cleaning, plumbing repairs, water heater services, pipe installations, and more for residential and commercial properties. Our experienced team is committed to delivering reliable solutions, fair pricing, and exceptional customer care. At Agape Drain & Plumbing, we believe in treating every customer like family, ensuring your plumbing needs are met with excellence. Contact us today for service you can trust!
"Agape Drain and Plumbing offered the best price compared to other professionals I received quotes from. Their work was excellent, and they were highly professional. I?m very satisfied with their service and would definitely recommend them!"
Nu S on March 2025
Jose Solano Remodeling, LLC is 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.
"Jose came in, provided me with very reasonable estimate and offered to complete the job same day. And, he did! Professional, great work, personable. I will be hiring him for more jobs. Highly recommended."
John A. M on July 2025
Jose Solano Remodeling, LLC is 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.
"Jose came in, provided me with very reasonable estimate and offered to complete the job same day. And, he did! Professional, great work, personable. I will be hiring him for more jobs. Highly recommended."
John A. M on July 2025
Welcome to Markool Heating & Cooling. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text, or email today, and let us get started!
Welcome to Markool Heating & Cooling. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text, or email today, and let us get started!
One stop shop for all of your maintenance, repair and renovation needs. We pride ourselves on the quality work we provide, while delivering great customer service. Check out some of the services we offer below and call -or- click to schedule an estimate today!
One stop shop for all of your maintenance, repair and renovation needs. We pride ourselves on the quality work we provide, while delivering great customer service. Check out some of the services we offer below and call -or- click to schedule an estimate today!
Here at R. Tillery Enterprise, we specialize in underground plumbing for sewer mains and water mains, delivering reliable solutions with precision and efficiency. With over 30 years of experience, our team has built a reputation for excellence in both traditional and trenchless excavating methods. Equipped with two 2020/2021 Ditch Witch directional drills, we are experts in directional drilling, ensuring minimal disruption while installing underground utilities with accuracy. Our commitment to quality workmanship, advanced technology, and customer satisfaction makes us a trusted partner for municipalities, contractors, and property owners. Whether it’s new installations, repairs, or trenchless solutions, R. Tillery Enterprise has the expertise and equipment to get the job done right.
"Good, gave price and able to finish project in time"
Mardochee O on April 2025
Here at R. Tillery Enterprise, we specialize in underground plumbing for sewer mains and water mains, delivering reliable solutions with precision and efficiency. With over 30 years of experience, our team has built a reputation for excellence in both traditional and trenchless excavating methods. Equipped with two 2020/2021 Ditch Witch directional drills, we are experts in directional drilling, ensuring minimal disruption while installing underground utilities with accuracy. Our commitment to quality workmanship, advanced technology, and customer satisfaction makes us a trusted partner for municipalities, contractors, and property owners. Whether it’s new installations, repairs, or trenchless solutions, R. Tillery Enterprise has the expertise and equipment to get the job done right.
"Good, gave price and able to finish project in time"
Mardochee O on April 2025
FAQs for water heater service projects in Gaithersburg, MD
The average cost to install a new water heater is around $1,300, but you can expect to pay between $875 and $1,750, depending on the kind of water heater, the size of the unit, and the professional chosen to complete the work. Tankless water heaters can push your price higher, as installation is more complicated, with prices as high as $3,500. The location and accessibility of your water heater will play a role in the project cost, as those sitting in tight spaces like a crawl space will drive up your labor costs.
Tankless water heaters are more expensive than those with a storage tank, but they come with some impressive benefits that most homeowners find worth the higher investment. Most importantly, they provide unlimited hot water, so you’ll never run out like you would with a storage tank. Tankless heaters are also more efficient, so comparing gallon-for-gallon, you’ll spend less on hot water with a tankless heater. Tankless water heaters are also smaller, require less maintenance, and tend to last longer than storage tank water heaters.
It usually takes a professional water heater installer between two and three hours to remove an existing water heater and install a new tank heater. However, it could take four to five hours if they have to work in a small utility closet or another tight area, like a crawl space. Tankless water heaters have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.
It is very difficult and dangerous to install your own water heater, so we strongly recommend against tackling this as a DIY project. Not only will you need to wire your water heater, but you’ll also need to connect plumbing to the intake and outlet. Sweating copper pipes and connecting wiring properly are skills most DIYers don’t have, and even if you do feel confident you can do it, working with water and electricity always leaves the potential for electrocution. Hiring a local water heater installer is well worth the investment.
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.
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