Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Tankless water heater installers in Frederick

Heuer Plumbing and Heating
12602 Beck Road
4.36(
11
)
Approved Pro
Heuer Plumbing and Heating
12602 Beck Road
4.36(
11
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
21 years of experience

We would like to introduce you to Heuer Plumbing and Heating. We welcome the opportunity to show you what experience, expertise and quality workmanship can mean for the value of your home. We pride ourselves on the detail and uniqueness of our work. We want everything to make sense to you the homeowner. Call us today, and you will be glad you did.

"He is a good gentleman, and his work shows it. when he does something you never call back to have it fixed."

Ricky S on October 2017

We would like to introduce you to Heuer Plumbing and Heating. We welcome the opportunity to show you what experience, expertise and quality workmanship can mean for the value of your home. We pride ourselves on the detail and uniqueness of our work. We want everything to make sense to you the homeowner. Call us today, and you will be glad you did.

"He is a good gentleman, and his work shows it. when he does something you never call back to have it fixed."

Ricky S on October 2017


Avatar for Endzel Plumbing
Endzel Plumbing
632 Autumn Sky Court
4.90(
5
)
Approved Pro
Endzel Plumbing
632 Autumn Sky Court
4.90(
5
)
Approved Pro
Customers say: Quick response
19 local quotes requested
3 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"They were very good."

Michael M on July 2024

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"They were very good."

Michael M on July 2024


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 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 Chesapeake Kitchen Design
Chesapeake Kitchen Design
8001 Wisconsin Ave
4.76(
37
)
Approved Pro
Chesapeake Kitchen Design
8001 Wisconsin Ave
4.76(
37
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
89 local quotes requested

Increase the value of your home with a new kitchen, or even just a new look. We have been beautifying kitchens for over 40 years. We pride ourselves on the quality of our workmanship, professional business practices and our dedication to our clients’ satisfaction. We welcome input while offering our guidance to insure a cost effective and successful project. Call us to discuss your next kitchen design today! http://www.chesakitdes.com We only do complete kitchens.

"I don't think it gets any better than this. The job was in a condo with a lot of rules that Chesapeake Kitchens scrupulously followed. The workmanship was excellent, and the quality of the materials used was very high. I was a first-time remodeler, and I needed lots of guidance about what would work and what wouldn't. The only mistake they made was in occasionally assuming I knew something I didn't know, but the results were always beautiful, and within budget."

Sylvia R on December 2020

Increase the value of your home with a new kitchen, or even just a new look. We have been beautifying kitchens for over 40 years. We pride ourselves on the quality of our workmanship, professional business practices and our dedication to our clients’ satisfaction. We welcome input while offering our guidance to insure a cost effective and successful project. Call us to discuss your next kitchen design today! http://www.chesakitdes.com We only do complete kitchens.

"I don't think it gets any better than this. The job was in a condo with a lot of rules that Chesapeake Kitchens scrupulously followed. The workmanship was excellent, and the quality of the materials used was very high. I was a first-time remodeler, and I needed lots of guidance about what would work and what wouldn't. The only mistake they made was in occasionally assuming I knew something I didn't know, but the results were always beautiful, and within budget."

Sylvia R on December 2020


Avatar for Aqueduct Plumbing Services
Aqueduct Plumbing Services
PO Box 449
5.00(
19
)
Approved Pro
Aqueduct Plumbing Services
PO Box 449
5.00(
19
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
614 local quotes requested

We are a family owned and operated business with several years of experience. We offer many plumbing services in Carroll, Howard, and east Baltimore Counties. Please reach out to us directly at 443-202-5623 for more information or to schedule a service. You can also book directly through our website at www.aqueductmd.com !

"Extremely well! I am very happy with the services provided."

Joseph L on March 2025

We are a family owned and operated business with several years of experience. We offer many plumbing services in Carroll, Howard, and east Baltimore Counties. Please reach out to us directly at 443-202-5623 for more information or to schedule a service. You can also book directly through our website at www.aqueductmd.com !

"Extremely well! I am very happy with the services provided."

Joseph L on March 2025


Avatar for Cabinet Restoration Company LLC
Cabinet Restoration Company LLC
4223 Hanover Pike
4.69(
84
)
Approved Pro
Cabinet Restoration Company LLC
4223 Hanover Pike
4.69(
84
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
629 local quotes requested

The Cabinet Restoration Company is your cabinetry expert specializing in the restoration of cabinetry. It is our commitment to provide the highest level of customer service and quality to our clientele. Our highly skilled staff of craftsman have decades of experience each and we use only the highest quality wood products. This allows us to provide our customers with results that are guaranteed to be beautiful, durable, and affordable. "Our job is not done until you are completely satisfied!" The Cabinet Restoration Company can balance budget and artistry to meet your individual needs.

"Cabinet Restoration Co is top notch! It was a very pleasant and easy experience for me. I would do it again in a heartbeat! I wish I could rate it 10 ⭐️! Pete gave me great choices for cabinet doors, moldings, etc. while other companies gave me only one choice. Each door lines up perfectly using the best hinges. The installer, Steve, took his time and created a magnificent look. What an excellent, professional artist he is! He is very talented craftsman and I trusted his judgement 100%, since he has many years of experience. I cannot rave enough about the skill and craftsmanship of my new kitchen! If you choose another company you are making a big mistake. I promise that you will have absolutely no regrets and it will be worth your wait! I promise you that!"

Sue S on February 2025

The Cabinet Restoration Company is your cabinetry expert specializing in the restoration of cabinetry. It is our commitment to provide the highest level of customer service and quality to our clientele. Our highly skilled staff of craftsman have decades of experience each and we use only the highest quality wood products. This allows us to provide our customers with results that are guaranteed to be beautiful, durable, and affordable. "Our job is not done until you are completely satisfied!" The Cabinet Restoration Company can balance budget and artistry to meet your individual needs.

"Cabinet Restoration Co is top notch! It was a very pleasant and easy experience for me. I would do it again in a heartbeat! I wish I could rate it 10 ⭐️! Pete gave me great choices for cabinet doors, moldings, etc. while other companies gave me only one choice. Each door lines up perfectly using the best hinges. The installer, Steve, took his time and created a magnificent look. What an excellent, professional artist he is! He is very talented craftsman and I trusted his judgement 100%, since he has many years of experience. I cannot rave enough about the skill and craftsmanship of my new kitchen! If you choose another company you are making a big mistake. I promise that you will have absolutely no regrets and it will be worth your wait! I promise you that!"

Sue S on February 2025


Avatar for Ox Construction
Ox Construction
3090 Hoopers Delight Road
5.00(
10
)
Approved Pro
Ox Construction
3090 Hoopers Delight Road
5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
151 local quotes requested

Ox construction has been in business since 2012 and specializes plumbing services, repairs, inspections, installations, drain cleaning, septic tank services, excavation, grading projects general construction, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"I accidentally broke the PVC pipe leading out of the condensation drain coming out of my air conditioning unit. (This may seem to be a minor problem, but that is only because you didn't have to haul the buckets of water produced during this heat spell to the sump pump drain.) I put in the request on Monday afternoon. They arrived first thing Tuesday morning -- early. It took them all of about 15 minutes. I could not ask for better service. They were prompt, professional, friendly, and courteous."

Alonzo C on August 2024

Ox construction has been in business since 2012 and specializes plumbing services, repairs, inspections, installations, drain cleaning, septic tank services, excavation, grading projects general construction, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"I accidentally broke the PVC pipe leading out of the condensation drain coming out of my air conditioning unit. (This may seem to be a minor problem, but that is only because you didn't have to haul the buckets of water produced during this heat spell to the sump pump drain.) I put in the request on Monday afternoon. They arrived first thing Tuesday morning -- early. It took them all of about 15 minutes. I could not ask for better service. They were prompt, professional, friendly, and courteous."

Alonzo C on August 2024


Avatar for WaterStone Kitchen and Bath
WaterStone Kitchen and Bath
100 Glenn Drive
5.00(
43
)
Approved Pro
WaterStone Kitchen and Bath
100 Glenn Drive
5.00(
43
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
530 local quotes requested

WaterStone Kitchen and Bath specializes in turn key kitchen and bath remodeling. We have been proudly serving the Northern Virginia area since 2005. We provide a one stop shop from preliminary consulting, through design conception and finally to project completion. One of our specialized designers will combine your vision with years of design experience to create a unique space that exceeds your highest expectations. We offer an extensive line of kitchen and bath products that allow us to meet your design needs on any budget. We operate as an in home service provider only. We don't have a show room, so we can pass our low overhead savings on to our clients. If you are interested in remodeling your kitchen or bath, please contact us for a free in home consultation.

"Jeff and his team (Deanna, Jake, Javier, and Rolando) did an excellent job from start to finish. They worked with us and explained every step of the process, helping us with design decisions and selections. The end product, our new kitchen, is of the highest quality. They made the process very easy and quickly closed out our punch list. We're very excited to have our new, updated kitchen and I would very much recommend WaterStone for future work."

Jim S on January 2023

WaterStone Kitchen and Bath specializes in turn key kitchen and bath remodeling. We have been proudly serving the Northern Virginia area since 2005. We provide a one stop shop from preliminary consulting, through design conception and finally to project completion. One of our specialized designers will combine your vision with years of design experience to create a unique space that exceeds your highest expectations. We offer an extensive line of kitchen and bath products that allow us to meet your design needs on any budget. We operate as an in home service provider only. We don't have a show room, so we can pass our low overhead savings on to our clients. If you are interested in remodeling your kitchen or bath, please contact us for a free in home consultation.

"Jeff and his team (Deanna, Jake, Javier, and Rolando) did an excellent job from start to finish. They worked with us and explained every step of the process, helping us with design decisions and selections. The end product, our new kitchen, is of the highest quality. They made the process very easy and quickly closed out our punch list. We're very excited to have our new, updated kitchen and I would very much recommend WaterStone for future work."

Jim S on January 2023


Avatar for Kitchen Saver
Kitchen Saver
10315 South Dolfield Road
4.72(
501
)
Approved Pro
Kitchen Saver
10315 South Dolfield Road
4.72(
501
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
2239 local quotes requested

Have a designer look at the fraction of the cost of a total kitchen remodel! Kitchen Saver® opened its doors in 1979, offering cabinet refacing and kitchen remodeling services. Our reputation for excellent workmanship and for using quality, long-lasting materials grew. Over time, our services evolved from traditional cabinet refacing services into the Custom Cabinet Renewal process, the foundation of which enhances and improves the structural integrity of a customer’s existing cabinetry. Involving the addition of custom-made drawer fronts and doors, available in a variety of beautiful styles and colors, Custom Cabinet Renewal breathes new life into kitchens at a fraction of the expense and time of traditional remodeling. Thanks to our innovative process, incredible craftsmanship, and unwavering dedication to excellence, we have amassed a long list of satisfied customers. Prepare to be impressed.

"We had an excellent experience with Kitchen Saver. From start to finish, everyone we dealt with was highly professional and pleasant to deal with. Everything was explained in advance, and every appointment was on time and went exactly as described. Our installer, Trae, was top notch! We don't have any hesitation about recommending them."

Kristi A on May 2025

Have a designer look at the fraction of the cost of a total kitchen remodel! Kitchen Saver® opened its doors in 1979, offering cabinet refacing and kitchen remodeling services. Our reputation for excellent workmanship and for using quality, long-lasting materials grew. Over time, our services evolved from traditional cabinet refacing services into the Custom Cabinet Renewal process, the foundation of which enhances and improves the structural integrity of a customer’s existing cabinetry. Involving the addition of custom-made drawer fronts and doors, available in a variety of beautiful styles and colors, Custom Cabinet Renewal breathes new life into kitchens at a fraction of the expense and time of traditional remodeling. Thanks to our innovative process, incredible craftsmanship, and unwavering dedication to excellence, we have amassed a long list of satisfied customers. Prepare to be impressed.

"We had an excellent experience with Kitchen Saver. From start to finish, everyone we dealt with was highly professional and pleasant to deal with. Everything was explained in advance, and every appointment was on time and went exactly as described. Our installer, Trae, was top notch! We don't have any hesitation about recommending them."

Kristi A on May 2025

...
Showing 1-10 of 883

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.
Toilet and bidet in bathroom
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bidet installation costs based on factors such as bidet type, attachments, features, parts, labor, and more.
water main being installed in yard
Apr 30, 2025
Apr 30, 2025
Budget for main water line replacement costs based on factors such as accessibility, depth, length, materials, permits, labor, and more.
Beautiful large white bathroom
Apr 30, 2025
Apr 30, 2025
Budget for walk-in bathtub costs based on factors such as bathtub type, labor, plumbing and electrical work, additional accessibility features, and more.
marble kitchen counter with gold faucet
Apr 28, 2025
Apr 28, 2025
Explore the average cost to replace a kitchen faucet with a professional plumber based on factors like faucet type, features, labor, and unexpected costs.
plumber installing sewer main pipes in the ground
Apr 25, 2025
Apr 25, 2025
Understand what goes into installing a sewer line, including materials, labor, permits, and potential landscaping considerations, to ensure a smooth and compliant connection to your local sewer system.
water main being repaired by plumbers
Apr 24, 2025
Apr 24, 2025
Main water line leak repair costs depend on how much of the line needs repair and other factors. Learn what influences the price before you take on this project.
Share project details to get started.