For over 50 years, Magnolia Plumbing, Heating & Cooling has been serving the residents and companies of the Washington, DC area. We have dedicated ourselves not only to your comfort, but your wellbeing and quality of life. In those past 50 years, 3 generations of Magnolia family members have spent their lives always pushing the bar for excellence.

Today, the accumulated expertise of all those years is passed on to our customers. When you hire us to do a job for you, you can rest assured that our work will be of the highest quality. We don't cut corners, and we never do less than our best work on every single job.

Offices (1)

  City Washington, DC
  Zip code 20017
  Address 600 Gallatin St NE
  Phone (888) 829-8510
  Today Open 24hrs    
  Person Mr. Justin S. Johnson

Services (5)

Plumbing Services

When your plumbing system is not running smoothly, you need a reliable plumber there to assist you as quickly as possible. But you should also find an expert who can help you with all of your plumbing needs over time, whether you want to upgrade your fixtures or add in a new sump pump or water treatment system.

Drain & Sewer Services

The drains and sewer system that you use in your home or business are of incredible importance. When many people think of the benefits offered by their plumbing systems, they will naturally think of the clean, potable water which pours forth from their faucets and plumbing fixtures, or of the water heater that allows for the simple, convenient heating of this water.

Water Heaters

Of all the luxuries that we, as modern homeowners, enjoy, the near instantaneous access to hot water is certainly among the most valued.


Washington, DC can get quite cold during the winter season, so it is incredibly important that you have a good heater installed in your home and that it is in fine working condition. To guarantee that this is the case, though, you need more than just a great heater. You must also know for certain that your heating services are of the highest quality.

Air Conditioning

Washington, DC may be known for its proverbial hot air, but there's no getting around the fact that we get some serious heat and humidity during the summer months. The best way to combat our sultry summer air is with a whole-house air conditioner for your home or business space. However, you can't just throw any old system into your building, and this is where our experts come in.
V. Morales

V. Morales

Jun 15, 2017
I just want to thank you for the very quick response to our need of replacing the water heaters yesterday in a very short request. The job was completed to our satisfaction. Kim will be sending you a signed contract for the water meter installation. Full review ›
G. Lindsey

G. Lindsey

Jan 26, 2017
Joe, the guys did a great job. Andre was out first thing yesterday morning and Carlos got the wall painted. They were done by early afternoon. I really appreciate all the hard work you guys did and for taking my call on Easter Sunday (please tell him I'm sorry to have interrupted). Have a great summer. Full review ›
Christopher M.

Christopher M.

Jan 20, 2017
Michael, I had the opportunity to stop by (my rental property) and see your work over the weekend and was really pleased with the outcome. Thank you for doing such a nice job! Full review ›
Mr. Geovonn Y. showed up promptly at 8:00A ready to work. From the introduction to his departure, total professionalism. He began with summarizing what he had been informed the issues might be. He asked for my input and confirmation. Full review ›
Ingrid Monaghan

Ingrid Monaghan

Jul 18, 2016
Magnolia gave professional and punctual service and I have used their service for several years. Full review ›
Jerry Mazzuchi

Jerry Mazzuchi

Apr 26, 2016
Carlos was extremely professional as well as knowledgeable about the problem I was having with my PTAC air conditioner short cycling the cool air. He was done in a jiffy and didn't waste time because he knew I had an appointment to make. Full review ›
Christopher Vance

Christopher Vance

Mar 24, 2016
Carlos is a great plumber. I have been using his services for a number of years. He's knowledgeable of all plumbing issues, patient with his explanations, and just an overall pleasant individual to work with. Full review ›
Robert Krech

Robert Krech

Mar 18, 2016
We had a gas line issue come up unexpectedly during chimney repairs. Magnolia sent Humberto that day to decide the scope of work and parts needed. Humberto came back the next day and took care of the issue within about 20 min. Full review ›
Patricia Diana Taylor

Patricia Diana Taylor

Mar 11, 2016
I was so glad to see Samuel M. Today 3/11/16 after spending 2 super hot days and nights in my home. He was professional and courteous. Samuel came in and found the problem with the furnace right away. Full review ›
Jane McGregor

Jane McGregor

Feb 23, 2016
I called Magnolia Plumbing and they came on time and solved my problem quickly. The lead technician Kenny Taylor was very friendly and professional. They left my bathroom very clean considering what had to be done. Full review ›
Kevin Gray

Kevin Gray

Feb 22, 2016
Sam was very professional, knowledgeable and honest. He first off fixed the mess the previous worker from a company that shall remain nameless had made, then quickly diagnosed the problem and promptly fixed it. Full review ›
Edward Shepperson

Edward Shepperson

Feb 05, 2016
I have experienced numerous pin-hole leaks in my water piping over the past 28 years. The original piping was Type M copper and appeared to corrode extensively due primarily to the chemicals in the water supply. Full review ›
Jerome Nash

Jerome Nash

Dec 24, 2015
The techican was outstanding. He was very professional and on time to provide outstanding customer service. He explained in detail the entire procedures to repair my plumbing problem. The customer service reps were instrumental in changing my dates to accompany the home association policies. Full review ›
A. Muldrow

A. Muldrow

Oct 30, 2015
Charles was very professional, even when our tenant would not comply as he was conducting the work. I would like to request that Charles conduct all our company service calls Full review ›
Mrs. Callegari

Mrs. Callegari

Jun 26, 2015
Though this was the first time I used Magnolia, you came highly recommended. Andre was just wonderful! He really helped me out. I will be using Magnolia in the future. Full review ›

Blog posts (15)

3 Ways to Protect Server and Computer Rooms From Heat

How cost-effective is proper cooling in your server rooms and closets? Consider that an IT outage at your data center can cost upward of $7,900 per minute while your response team works to get you back online. If you fail to protect your server room or computer rooms from overheating, the costs to your

How Carbon Monoxide Can Kill and What You Can Do

Many people associate carbon monoxide with automobiles, but the reality is carbon monoxide can be a threat inside your home. Carbon monoxide is something that should not be taken lightly, and it is important to recognize that this lethal gas can affect you and members of your household without even setting

What Is a Smart Thermostat? An FAQ

Once upon a time, a thermostat was an analog device that helped to control the temperature of the home. The homeowner would set the dial to the preferred temperature while the thermostat would measure the temperature of the room. When the room became too hot or too cold, the thermostat would turn on

8 Reasons Your Boiler Could Fail

A sudden boiler failure often comes as a shock to homeowners, especially when it happens during the middle of winter. Unfortunately, homeowners often fail to notice the signs of impending boiler failure before it actually happens. By recognizing the following red flags, you’ll be able to take proactive

What You Should Know About Hydro Jetting

Clogged drains and pipes can be frustrating for any homeowner. If the plunger and the baking soda just isn’t enough to dislodge stubborn blockage, you may need a stronger way of dispatching your clog. Hydro jetting offers an innovative way of busting up clogs that prove difficult to remove using

7 Signs It’s Time for a New Water Heater

The only time you’re likely to think about getting a new water heater is when your old one goes kaput. Instead of scrambling to replace your water heater when it breaks down, you’re better off with a planned replacement before it gets to that point. All you have to do is look out for the

3 Kinds of Air Conditioner Noises You Should Take Seriously

No one expects their air conditioner to be completely quiet, but there are normal air conditioner noises and then there are the other kinds of noises that make you sit up and say, “What on earth was that?” An unexpected air conditioner noise is often a sign of a problem. The question is

Common Heating System Problems to Watch Out For

Although it’s designed to be as reliable as possible, it’s not unexpected for your heating system to run into an issue or two during its life. These issues usually range from minor inconveniences to problems that could sideline your heating system when you need it most. It’s important

8 Signs of a Failing Garbage Disposal

A functioning garbage disposal helps keep your sink and pipes clean. But when problems arise with your disposal, the issues could impact the way you cook, wash up or keep your kitchen clean. While some garbage disposal problems respond to repairs, others require a full replacement. In this blog, we

Signs You Need to Schedule Pipe Inspection

It can be difficult to keep your plumbing system in proper shape much of the time, since most of the system is hidden from view. Most of the issues that can afflict a plumbing system are quite subtle, as well, making it even more difficult to be able to tell when your system is in need of repairs. If

Do I Need to Fill My Ductless System with Refrigerant This Summer

Refrigerant is a vital component of practically every air conditioning system in use today. Despite that, it isn't well-understood by the majority of homeowners across the country. As a result, we

Improve Your AC with Zone Control

Cooling season is almost here, and many people are having their air conditioners professionally checked to make sure they're in good shape. That's a good thing to do, but it's not the

Signs That You Need a New Water Heater

Water heaters are built to last a really long time. That doesn't make them invincible, however. Eventually, the years of wear and tear will catch up with your system and it will die on you. You probably

What Causes Air Conditioner Ice, & Why It's a Problem

The more you rely on your air conditioner as the summer gets closer, the more likely it is that problems will develop with the system. As long as you were sure to schedule preventive maintenance earlier

Watch for These AC Issues

As we move closer to summer, you're likely going to start relying on your air conditioner more and more often to keep yourself cool. That's all well and good; air conditioners are supposed

Commercial HVAC team members Jonatan Maranda and Sebastian Uhde installed a new 15 ton Trane Package Unit at Belle…

  Twitter  •  May 08

Happy Monday! Enjoy these shots of our Commercial Wastewater department putting in WORK 🔥💪🏼 Let’s start this week o…

  Twitter  •  Apr 27

Welcome to our new series ~the Magnolia Minute~ where we discuss various important topics in a minute or less! Feel…

  Twitter  •  Apr 07

Leaking Water Service Repair • Customer had a water service that was broken and leaking through the sidewalk panels…

  Twitter  •  Apr 06

Two buildings are being demolished. We located, excavated, and capped off the sewer and water lines for both buildi…

  Twitter  •  Mar 30

Hydro excavating work for Arlington County • We had to expose a water line to let Arlington County perform a water…

  Twitter  •  Mar 23

We’re all a team here. Please don’t forget about your local restaurants. Many still offer curbside pickup, takeout,…

  Twitter  •  Mar 17

Newest Magnolia employee alert!! Hope this cutie brightens up your timelines today ☺️

  Twitter  •  Mar 12

Pictures from a recent job we completed • There was grease contaminating the three sand filter systems in their bac…

  Twitter  •  Mar 09

Another beautiful installation from our Residential Department • New Rheem variable speed furnace and AC units with…

  Twitter  •  Mar 02
We know that sometimes you're going to have an emergency problem come up that just can't wait. We don't believe you should be punished for a situation that wasn't your fault. That's why we offer emergency service 24/7, 365 days a year.
When the home and business owners of the Washington metro area, including northern Virginia, need plumbing repairs, plumbing service, air conditioning or heating service, they know the only call they need to make is to Magnolia Plumbing, Heating & Cooling.