Tankless Water Heater Installation & Repair in Waldorf, MD

Wondering if making the switch to tankless water heating is right for your home? Need to repair your current water heater? Call now at (301) 843-9760 to schedule service with our Waldorf tankless water heater experts. 

Noticing an increase in tankless water heater installations among your neighbors? This alternative to standard tank systems is quickly growing in popularity—it provides you with hot water instantly and can help you save on energy bills.

If you are thinking of replacing your bulky tank with a tankless unit, contact ACW Service Inc. to learn more about its advantages. We provide professional tankless water heater installations and repairs in Waldorf, MD and surrounding areas.

Schedule Service Today!

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Factors to Consider Before Choosing a Tankless Water Heater

Going tankless has several benefits: they are energy efficient, they save space, and they can last 20 years or more if properly maintained.

However, while it may seem tempting to choose a tankless unit once your old water heater has broken down, there are some important factors to consider before you decide to purchase a tankless water heater.

Additional Upgrades

Electric tankless water heaters have a larger electrical demand. Most units will require at least 120 or 150 amps, while a typical household’s combined electrical capacity is 200 amps. Most homes that opt to go tankless will likely need to upgrade their entire electrical system to accommodate the new water heater’s demands.

Tankless water heaters running on natural gas or propane will need larger gas pipes to handle the greater volume of fuel. Proper ventilation is another concern; you may need to upgrade your current venting to ensure the safety of your home.

Greater Upfront Investment

When it comes to price, tankless water heaters are not as budget-friendly as their tank-style counterparts. You will need to prepare for a higher upfront cost, which not only includes the equipment itself but the upgrades to your electrical or gas pipe system as well.

Despite the larger upfront investment, tankless water heaters can help lower your energy bill in the long run. How much you save will depend on the type of water heater you install (electric, natural gas, or propane) and your household’s particular hot water demands.

Ready to Install Your New Water Heater?

Since the process of installing a tankless water heater involves additional upgrades to your home, interested customers are encouraged to consult with a licensed plumbing professional who specializes in tankless water heating.

Our experts at ACW Service Inc. will take the time to discuss your hot water needs, address any questions or concerns you may have, and walk you through what’s needed to complete the installation successfully.

If you are ready to leave your tank behind and move forward with a tankless unit, contact us to get started. We are authorized dealers of Navien tankless water heaters and can help you select the right model for your home.


What Our Clients Are Saying

Outstanding service! Installed within 24 hours of calling, amazing! Brian Chambers is a great guy! COVID-19 posture protocols with protective masks made us feel safe. Great price and installation only took a couple hours. Just an awesome experience. Definitely earned my future business!
Dorian Mastros
ACW was easy to work with. They called 30 minutes before arrival, showed up on time, worked quickly, and provided up front pricing. We will surely use them for future plumbing needs.
Ron Phillips
ACW's Service was quick to get to our home as our water heater that was leaking. He went to work immediately correcting the situation and getting a new hot water heater installed right away. Brian was very professional and thorough. He even went to each bathroom and kitchen sink and drained the air out of the pipes so we did not have to. I have nothing but positive things to say about this experience. Thank you!
Jan Martin
We called when we saw water pooling around in our utility room. ACW was able to come out within hours and install a new water heater with all the latest code requirements. We are very pleased to have our home back in working order so quickly and to have worked with such a great company! Highly recommend to anyone looking for a plumber.
Terry Smith
Brian was very professional, caring and timely in meeting our urgent repair need. He made himself available at all times and talked me through the crisis until he got there. Quality work and service.
Jesus Figueroa
The absolute best. I called Thursday evening freaking out because my water heater broke. Brian called me back later that evening and said that he can stop by the next morning to take a look. He came and he took care of everything immediately and at a very reasonable cost. Honest, kind, efficient and reasonable. I highly recommend them for all your plumbing needs.
Ruth Creamer
Thank you to ACW for responding quickly, arriving promptly, and calming my nerves instantly. They worked quickly and diligently to locate and then repair the leak in the ceiling that was dripping in my kitchen. Could not be happier that they were referred to me.
Amy A
Brian from ACW Service was awesome. I had a propane fireplace that wouldn't light. Tried to fix it myself with no success. He was able to fix the fireplace and keep it working. I was so grateful to avoid the expense of having to replace it. Fast response, impressive expertise, great attention to detail, and reasonable prices will keep me calling on ACW Service for all my plumbing and fireplace needs in the future.
Kelly OConnell
Would recommend ACW to do your plumbing. Brian C. is the bomb and not only professional, punctual and responsive, he's very polite. 🙂
Kim Pronobis
ACW was able to come out same day to repair the broken pipe in my basement. They had all the necessary material stocked on the truck and had my house back up and running in no time. I greatly appreciate the quality customer service and will continue using ACW in the future.
Randy W.
The absolute best. I called Thursday evening freaking out because my water heater broke. Brian called me back later that evening and said that he can stop by the next morning to take a look. He came and he took care of everything immediately and at a very reasonable cost. Honest, kind, efficient and reasonable. I highly recommend them for all your plumbing needs.
Ruth Creamer
Brian is a true professional! He came right in and identified the issue. Furthermore, he provided evidence of the issue. He did not waste anytime, and fixed the issues I was having. He gave me necessary advice to prevent future problems. Brian provided the quality service I was looking for.Much Appreciated ! -Brandon
Brandon Dent
Brian was responsive to my online inquiry and immediately provided a reasonable quote. He was also able to squeeze me in for an earlier appointment (to accommodate my schedule). I will definitely be using ACW in the future AND referring them to my friends in the area!!
Denice Crump
We came home in the evening and were shocked to find sewage in our basement bathroom. We called ACW at 8pm and Brian was out to our house by 930pm. We were very happy that he could come out immediately especially at that time of day so we did not have to take time off work. Brian was AMAZING! He was a true delight. He not only quickly unclogged our sewer but he was great with our kids. He let my very inquisitive son be his “helper” by holding his mini wrench for him. Five stars ALL THE WAY. Brian was even talked into a Trolls dance battle (Which he claimed to win) by my kids at the end of a long day and he obliged with a smile. Truly kind and professional! My kids even asked us this morning if Mr. Brian was coming over today! Highly recommend ACW.
Julie Jones
Brian was very friendly, explained what was needed to be done and how it cost b4 starting the job no hidden cost. After problem was found didn't take long to finish the job even with having to leave go and get extra parts. Cost was reasonable for time and materials for the repair work.
Dallas W
Our preferred plumbing company for our rental properties. On time, No call backs, upfront pricing, good quality work. Licensed and Insured. Locally owned and operated.
Michael Funk
Called on a Friday morning and they were able to squeeze me in the same day. It was a small job but they did a great job and my home was back to normal in no time. Very friendly.
Maya Benjamin
Brian was as advertised by my neighbors on a local app I use. He was professional, friendly, and took the time to explain everything in great detail. Everything went exactly as he said it would right down to receiving the invoice in my email with all warranty information. I was very impressed, and as my neighbors did for me, I will recommend ACW to anyone looking for a plumber they can trust.
Ray Evans
After seeing an article on ACW Services Inc. in our local newspaper, I contacted them for an estimate and possible work appointment. After the initial visit and price quote, Brian Chambers from ACW Services Inc. came to my house on Wednesday June 3, 2020 to replace three outside water bibs. He was very personable and professional. While doing this he found that one of the cut off values was not working properly, so he replaced it. I am very pleased with the outstanding quality of the bibs and the installation of them. I would highly recommend ACW Services Inc to anyone looking for the services they perform. He reminded me of the type of employee or owner that you want to deal with. Thank You again Brian. It should be mentioned that during the whole time Brian was at my house he wore a face mask (in view of the Covid 19 restrictions) and it was very hot outside.
Randall Baker
I called ACW Service to ask some questions about some plumbing issues I was having. Brian told me he would come take a look and fit me in the same day even though it wasn't an emergency. Brian came immediately and was professional and Informative throughout. He took a look at the issues I was having and provided a couple of options. He then told me if I had the time he could complete the fixes the same day. He went and got the parts and fixed all the issues. I have used other plumbing services in the past and ACW Service was by far the best and had the best prices. I highly recommend this company and will go to ACW Service for all my future needs!
Mark Price
Called on a holiday and was pleasantly surprised to reach an actual person. ACW was out to my house the next morning and located and repaired my leak. I appreciate how prepared and professional they were. I’m sure with this old house it won’t be my last plumbing problem so I’m glad I found this company to use from now on.
Vernon Jones
We've used ACW twice now, and both times they were knowledgeable, prompt, and thoroughly explained the issue so a layman could understand. Our first time was an emergency water heater leak (structural failure), and the next morning, we had a new system in place and were good to go. We could not be happier with Brian and the ACW team.
David Monath
Zach replaced our nasty old utility sink with a beautiful new one and he did an amazing job!! He was very professional, he showed up with gloves, a mask and shoe covers to protect himself and our family during these crazy times. Not only did he show up right on time but he anticipated our needs and thought about things we never even considered, such as securing our hose from our washer to the utility sink. We will continue to use ACW for all of our future plumbing needs.
Christa Nairn
BEST experience I’ve ever had with a plumber! Very fast response time, showed up at the time they said they were going to. Took the time to explain what was wrong and how they were going to fix it- and actually did! Our bathroom is 100% fixed with no issues.Would highly recommend for any of your plumbing needs.
Travis Pop
Thank you to ACW Service for coming out during a pandemic and handling our plumbing emergency like true professionals. We greatly appreciated the use of masks, gloves, sanitizer, and them wiping down the work area very thoroughly. It was our first time using them and we will recommend them to our neighbors, friends, and family in the future. Great job!
Cheryl Lindsay
We had a significant water issue in our house. They had a timely response, provided an accurate quote, and provided top notch work. We have used them for additional work as needed after our impressive first time. Definitely recommend. Trustworthy and fair.
William Rector
Emergency call for a leaking valve in my master bathroom. ACW had an experienced, knowledgeable plumber out within hours. They took care of my problem and took a look at all the plumbing in my house to see if they could notice any potential issues. I appreciate the professionalism and willingness to go the extra mile. Very happy and highly recommend these guys.
Fred Barnes
I contacted ACW about the water in my shower not shutting off. ACW responded quickly and sent a plumber almost immediately. They were extremely friendly and knowledgeable. My shower was fixed in no time! I would certainly recommend ACW to anyone in need of plumbing services and will undoubtedly contact them in the future for all my plumbing concerns.
Paul Wehausen
ACW is Awesome!! I had an emergency at my tenants home with the water heater leaking. I found ACW in my neighborhood app. I called and got an immediate response. Brian was very professional and knowledgeable about his craft. If you need any plumbing repairs, I highly recommend ACW Services.Sign😉One Happy Customer!
Carla Brockenbaugh
I recently had my garbage disposal replaced by ACW Service Inc. What a pleasant and positive experience I had with this company. They were polite, knowledgeable and extremely helpful in answers my questions/concerns in an extremely timely manner. The technician who replaced my disposal was very friendly and provided me details with what he saw, along with what needed to be fixed. My disposal was fixed within the hour and works great! I highly recommend ACW and will be referring them to my friends and family. This is one happy customer!
Deanna Evans
ACW provided excellent service at a fair price for the clogged bathroom drain. I was able to get an appointment the next day and on Christmas Eve at that. Brian provided prompt service and quickly unclogged the drain. Thank you for a job well done!
Chrissy Killillay
Great Company! Read their other reviews. I can't recommend them enough. You will be very pleased you called ACW. Brian with ACW was very professional. He was on time, provided upfront pricing, was the lowest cost, and he did a very professional job! You can tell he takes pride in his work. My father had his hot water heater replaced less then 24 hours after the initial call. Outstanding Value!!!
Olin Straus
I cannot properly verbalize how happy I am, that THIS company got referred to us. My boyfriend and I bought a house on Monday... the first things we moved in were the washer & dryer... within 8 hours of officially owning the home, the hot water hookup pipe busted. Lucky for us, Brian was out within 30 MINUTES... at 7PM! He did an amazing job of calming our nerves, as well as (obviously) quickly fixing the issue. Not only that, but he actually stayed to hook up the washer & dryer AND make sure they both worked properly, before he left. These days, it's extremely hard to find quality service. Often times, when you do, they have a terrible or nonexistent personality. Not Brian; he was as friendly and personable as can be! We are keeping his business card in the safest possible place, because if anything else goes, he will certainly be the person we call. Thank you, again, Brian!!!!
Erica Johns
I needed a new dishwasher installed recently and their service tech arrived promptly. Zach was very professional and courteous and completed the install quickly. I would highly recommend ACW Service. I have called them many times over the last 20 years and they always provide excellent customer service and workmanship.
Jenny Ross
Thank you ACW Service and Brian Chambers for the work you recently completed in my house. I had a water leak from an unknown location and ACW Service arranged the necessary testing and performed the repair in a timely and professional manner. Brian was very punctual and courteous. I highly recommend ACW Services and will be using them for all my future plumbing needs. Well done.
Ma Beitzell
ACW was on time and extremely knowledgeable. They helped us avoid future issues with our well water system that other companies never mentioned and hadn’t included in their quotes. It turns out that a water heater isn’t just a water heater. They never talked down to us and kindly helped my wife and I understand the potential issues that doing it the wrong way could’ve caused. I can’t recommend ACW Service enough - Price - Quality - Incredible Customer Service all in one place! Thanks again to the ACW Team for getting us back to warm showers!!!!
Richard Williams
I called ACW Service for an emergency, when I came home to a leaking water heater. When, my main shut off valve didn’t work, ACW shut off the water at the street and was able to replace my valve. ACW Service was professional, knowledgeable and efficient. The prompt response saved me. I would definitely recommend ACW to friends and family
John Price

Multiple service locations

Serving Maryland and the Washington D.C. Metro Area

ACW Service Inc. has been serving the Washington D.C. metro area since 1993. Our local, family-owned plumbing company is proud to provide our hardworking neighbors and community members with the quality solutions they deserve. 

In addition to Waldorf, we also serve communities throughout Charles, Montgomery, and Prince George’s Counties:

Local Reviews

ACW Service Inc. Rated 5.0 out of 5 stars based on 33 customer reviews

Map of Bowie, MD

Great work

Review of ACW Service Inc.

Highly recommend

Map of Waldorf, MD

Great Service

Review of ACW Service Inc.

Brian came out the very next morning as promised and on time. He gave us a reasonable quote, completed the work in less than 2 hours. Guaranteed the work in writing. We would differently use Brian again for our plumbing needs.

Map of Edgewater, MD


Review of ACW Service Inc.

Thank you! 5 star review done.

Map of Waldorf, MD

Excellent work

Review of ACW Service Inc.

I called ACW Service after being referred by a friend. We had 2 other companies come out who declined to take on the project. Brian assured me he could easily repair our leak and he made quick work of the job. He is an excellent plumber and very easy to communicate with.

Map of Hughesville, MD

Wonderful company

Review of ACW Service Inc.

Brian answered my call before 7am. He promised they would squeeze my emergency in and he kept his word. He arrived a few hours later and was very honest and upfront about the situation (which I appreciated) . Excellent service and I will be recommending to my peers.

Map of Waldorf, MD

Great service. Repair completed faster than i thought

Review of ACW Service Inc.

Brian was a good person to work with, He answered all of my questions,

Map of Waldorf, MD

Brian was patient and provided accurate and efficient customer service

Review of ACW Service Inc.

I recommend ACW to everyone in the Waldorf area. Straight no haggle pricing and Brian even snakier drain all the way to the sewer twice and changed out our p trap on our dual sink to ensure no more water would back up in our kitchen sink.

Map of Waldorf, MD

Great company

Review of ACW Service Inc.

ACW arrived on time. Friendly, polite, resourceful, and skillful. Thank you for being thorough and exceeding my expectations.

Map of Waldorf, MD

Great Price and service

Review of ACW Service Inc.

Same day appointment. Brian installed a new sump pump in the crawl space on the spot in no time. ACW you now have a dedicated customer!

Map of Waldorf, MD

Great Service,

Review of ACW Service Inc.

When it comes to plumbing I put my full trust in Brain and his services. He came out and fixed the problem quickly we now have no issues with our plumbing. This company is very pleasant to work with and very professional. These guys are our go to for ANY plumbing issues.

Brian C.

Brian C.

Re-pipe all water lines in home in Bowie, MD

Near Saber Ln, Bowie, MD 20715
Bowie, MD - Re-pipe all water lines in home in Bowie, MD
Brian C.

Brian C.

Installed new sump pump and check valve in crawl space of home in Waldorf, MD

Near Goral Ct, Waldorf, MD 20603
Waldorf, MD - Installed new sump pump and check valve in crawl space of home in Waldorf, MD
Brian C.

Brian C.

Emergency snaking of county facility main sewer in LaPlata, MD

Near Kent Ave, La Plata, MD 20646
La Plata, MD - Emergency snaking of county facility main sewer in LaPlata, MD
Brian C.

Brian C.

Installed new shower cartridge in White Plains, MD

Near Wamsley Ct, White Plains, MD 20695
White Plains, MD - Installed new shower cartridge in White Plains, MD
Brian C.

Brian C.

Installed new low boy 50 gal electric water heater in Waldorf, MD

Near Pronghorn Ct, Waldorf, MD 20603
Waldorf, MD - Installed new low boy 50 gal electric water heater in Waldorf, MD
Brian C.

Brian C.

Installed new shut off valve, supply line, and fill valve in Waldorf, MD

Near Hapsburg Ct, Waldorf, MD 20603
Waldorf, MD - Installed new shut off valve, supply line, and fill valve in Waldorf, MD
Brian C.

Brian C.

Installed new traps on 4 bathroom sinks in LaPlata, MD

Near Charles St, La Plata, MD 20646
La Plata, MD - Installed new traps on 4 bathroom sinks in LaPlata, MD
Brian C.

Brian C.

Installed new laundry tub faucet in Waldorf, MD

Near Hoffman Rd, Waldorf, MD 20601
Waldorf, MD - Installed new laundry tub faucet in Waldorf, MD
Zach A.

Zach A.

Installed new dishwasher in Waldorf MD

Near Pep Rally Ln, Waldorf, MD 20603
Waldorf, MD - Installed new dishwasher in Waldorf MD
Brian C.

Brian C.

Installed Zoeller sump pump and battery back up system in Waldorf, MD

Near Bancroft Dr, Waldorf, MD 20603
Waldorf, MD - Installed Zoeller sump pump and battery back up system in Waldorf, MD

estimate for tankless water heater installation in Waldorf, MD. System repairs and maintenance are also provided.

Call ACW Service Inc. at (301) 843-9760

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