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Top-Rated Tankless water heater installers in Annapolis Junction - Updated Nov 2026

Avatar for Ehrhardt Brothers Quality Plumbing, Inc
Ehrhardt Brothers Quality Plumbing, Inc
4.8(
432
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 1992

Warranties offered

Small jobs welcome

"Vince told me outdoor spigot could be repaired and did not need to be replaced which saved me money. He also replaced a vanity faucet which I provided. He was quick, efficient and honest. The most important thing was he discovered a serious problem with the way my water heater was vented. The exhaust pipe had been cut wrong and glued together. It was ready to come apart and could have vented carbon monoxide into the basement. (We do have CO detectors but this is still scary) We had this water heater installed a couple of years ago by another well known local firm that I don't know if I can name here. It did fail inspection by Howard County 3 times after initial install. Failure was all related to the vent and probably should have never passed. Anyway, by pure luck it was discovered and fixed. Thank you Vince!!"
Water Heater
Water Heater
Water Heater
Water Heater
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+40

Recommended by96%of homeowners
Avatar for Remedy Plumbing and Drain Cleaning
Remedy Plumbing and Drain Cleaning
4.8(
78
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Rema was fantastic. It was a tricky job replacing a water heater tank in a cramped space, and Rema both helped guide us to the right approach plus handled the install and removal of the old unit flawlessly. We'll hire Remedy again for future projects!"
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9 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
93
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Called the main number and the lady I spoke with was very pleasant and easy to work with. Was looking to have a 50 gallon hot water heater installed, 2 drains snaked and a new faucet installed. She booked my appt for the next day. Zam came to the house to provide us the quote and even offered to do half the job then and come back in a few days to do the hot water heater. He was incredibly professional and did a great job on all the work. I highly recommend them and will call them again."
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+1

Response time11 hrs
5 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,468
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Hello, I am requesting assistance from a licensed plumber/gas fitter for gas service restoration at my property: 1239 Maple Ave. Baltimore, MD 21227 BGE has determined that the prior gas service was abandoned and is now processing the project as a new gas service line and exterior meter installation. BGE will be meeting me on-site on Tuesday, June 9, 2026, at 9:00 AM to review and approve the proposed exterior meter location. I need a licensed plumber/gas fitter who can either attend that BGE site visit or come immediately afterward to evaluate the work required on the customer side of the gas system. The scope of work includes: - Inspecting the existing gas piping to determine whether any portion can be safely reused; - Extending, repairing, or replacing internal gas piping as needed; - Establishing the new customer-side gas connection point for the exterior BGE meter; - Pulling the required gas/plumbing permit; - Performing the required pressure test; - Coordinating the requir"
Horizon Plumber under sink
Horizon Plumber in Kitchen with homeowner
Horizon Plumber crawl space
Recommended by89%of homeowners
Avatar for Atlantic Blue Water Services
Atlantic Blue Water Services
4.9(
8
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

Averaging a 4.8-star rating across all review platforms, client satisfaction is our #1 priority! 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

Install of the Week
Install of the Week
Water Center
Water Center
Maryland Wine Festival

+5

Response time10 mins
131 neighbors recently requested a quote
Recommended by60%of homeowners
F.H. Furr Glen Burnie
New to Angi
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

Approved (Corporate)

Three qualities all of our people have that make us Northern Virginia, D.C. & Maryland’s #1 Home Service Provider. That’s the F.H. Furr Difference. F.H. Furr is D.C., Maryland & Northern Virginia’s premier plumber, HVAC contractor and electrician. F.H. Furr is A+ rated by the Better Business Bureau and has consistently been voted Best of Prince William County for HVAC, Plumbing and electrical.

1 neighbors recently requested a quote
Avatar for Bamford Plumbing and Heating Inc
Bamford Plumbing and Heating Inc
4.8(
65
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

In business since 2009

Emergency services offered

Warranties offered

"Everything went great. The old hot water heater was removed and then the new hot water heater was installed where I requested it to be with all of the plumbing done in a neat professional manner. It was a pleasure working with Bamford plumbing and I have been very happy with the work they have done. I would highly recommend them to anyone.
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Do you know if your sump is still working? We also have sump pumps avialable to protect you from power outages. That’s right no power no problem forget about the “battery back up” sump pumps if you have municipal water supply this is the way to go call today for details !
Tankless
Power Vent
Gas and Electric
Tree roots giving you problems with your drains? Have us come out today and try a Rootx root treatment !

+2

Recommended by98%of homeowners
Avatar for Orbit Water Solutions
Orbit Water Solutions
4.8(
44
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Very happy with the team that installed my water system. Not only is taking a shower 10x better. But the drinking water is fantastic. Thanks Vinnie and Purefect Water Solutions. I would recommend them anytime!"
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+9

Recommended by97%of homeowners
Avatar for Sila Heating, Cooling and Plumbing
Sila Heating, Cooling and Plumbing
4.6(
2,180
)
Tankless Water Heater - Install

Serving Annapolis Junction, MD and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"The technician arrived promptly at 9 a.m. as scheduled. However, the 50-gallon water heater that I purchased would not fit in the space so the technician had to wait hours for a new one to be brought to my home. He was very courteous and professional. He apologized several times for the delay. A short time after the new water heater arrived, he had everything up and running. This was my first time using Sila, and I would certainly consider contacting the company in the future."
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+4

Recommended by91%of homeowners
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