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TRUSTED BY ROSSLYN, VA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon232
    Verified plumbing services reviews

Top-Rated Plumbers in Rosslyn - Updated Nov 2026

Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
94
)
Faucets, Fixtures and Pipes - Repair or ReplaceSewer Main - Install, Replace or RepairWater Heater - Install or Replace+20 more

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"They contacted me right away and had a plumber out in just a few hours (and it wasn’t an emergency repair!). Tawn was very kind and professional and repaired the toilet quickly. Very happy with Day and Night Plumber and I’ve already scheduled an appt. with them for more work!"
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+1

Response time11 hrs
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for R Plumber, LLC
R Plumber, LLC
4.4(
259
)
Water Heater - Install or ReplacePlumbing for a Remodel or Addition - InstallGas Piping+3 more

Serving Rosslyn, VA and surrounding areas

Approved

In business since 1998

Emergency services offered

Warranties offered

"Great job. Prompt communication, great up front pricing, and most of all, high quality work! Will definitely use them in the future for my plumbing needs. Nice to know I have a plumber I can trust."
Here we are!!!
Plumbing Ground Work
Lavatory Rough-in
One shower with 2 valve
Broken Sewer pipe

+59

Response time6 hrs
35 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Jimmy Gusky Heating & Air LLC
Jimmy Gusky Heating & Air LLC
4.3(
374
)
Water Heater - Repair or ServiceTankless Water Heater - InstallWater Heater - Install or Replace+5 more

Serving Rosslyn, VA and surrounding areas

Approved

In business since 1996

Emergency services offered

Credit card accepted

"They did plumbing services. It was basically the toilet tune-up that they were supposed to do. They fixed it on Friday but on Sunday, it did not work again. Took one more week to get out here and they still have to come back to replace the toilet. At the end of it all, that didn't happen."
Additional Photos
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Response time9 hrs
5 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Care & Quality Plumbing, LLC
Care & Quality Plumbing, LLC
5.0(
34
)
Sump Pump - Repair or ReplaceWater Heater - Install or Replace

Serving Rosslyn, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"Jaime, the plumber was very professional and diligent in resolving my request in installing a water heater. He has stellar work skills and made honor to his companies name, everything he did was with care and gave great quality service. I highly recommend this trusted company for all your plumbing needs!!"
Water Softener
Gas water heater
Commercial Backflow
UV Light
Well Water tank

+2

Response time2 hrs
Response rate100%
Recommended by3%of homeowners
Avatar for 1 Stop Mechanical, Inc.
1 Stop Mechanical, Inc.
4.7(
97
)
Sewer Main - Install, Replace or RepairSewer Main - Install, Replace or Repair - For Business

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2009

Free estimates

Small jobs welcome

"1stopmechanical responded quickly to my request for quote of sewer line inspection. Upon inspection, the sewer line from the house to main sewer line had to be replaced. They provided a reasonable quote and completed the installation of the sewer line within 2 days. They were very professional and I would recommend them for any plumbing service."
Pumped Septic Tank
Pipe Tap
4 in. Sewer Pipe
Pipe Tap Connection
Before Road Patch

+30

Response time2 hrs
5 neighbors recently requested a quote
Recommended by92%of homeowners
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Plumbing FAQs, answered by experts

Yes, continuing to flush a clogged toilet is not likely to break up the clog. Instead, it will continue to put pressure on the clog while filling the bowl with more water, which can potentially cause the toilet to overflow—leading to an even bigger mess. Rather than repeatedly flushing, use a toilet plunger or plumber’s snake to dislodge the clog.

A back pressure valve is a control valve used on production vessels, such as separators, treaters, and free water knockouts. The valve holds pressure until a set point is reached, and then releases upstream pressure to reset. Back pressure valves are not safety mechanisms. Instead, they are regulators designed to keep the fluid, gas, or liquid mixture in a system at a certain pressure level to prevent bursts and other incidents.

Meanwhile, a backflow preventer is a safety mechanism that kicks in when the pressure has already failed and contaminated water flows in the reverse direction. Most backflow preventers consist of two one-way valves, or check valves assembled together. This design only allows water to pass through in one direction but not the other.

DIY installation of a walk-in tub is not recommended as it is a challenging and risky project that requires advanced plumbing knowledge. Professional installation is crucial to ensure a proper and safe setup, water-tight conditions, adherence to local building codes, and the preservation of your product's warranty.

There are three main types of shower valves: pressure-balancing, thermostatic, and diverter. Pressure-balancing and thermostatic valves are both considered mixing valves because they regulate water flow and temperature, but they do so in different ways. A pressure-balancing valve senses changes in water pressure, such as from a flushing toilet, and adjusts the incoming hot and cold water to maintain a consistent temperature; these typically use a single knob. A thermostatic valve uses a thermostat to precisely control the water temperature and requires a separate control to adjust the water volume. A diverter valve directs the flow of water from one fixture to another, such as switching from a tub faucet to a showerhead in a tub-shower combination.

Applying drain cleaner is a common DIY solution to clogged drains, but it can be extremely harmful to your pipes and lead to corrosion and leaks. It is almost always better to try snaking a clog than using a drain cleaner, but the best solution is to hire a professional plumber. They can locate the clog and gauge the severity using a camera system and then decide if using a plumber’s snake, auger, or drain cleaner is the best option to remove the clog and limit damage to your plumbing system.

The Rosslyn, VA homeowners’ guide to plumbing services

From average costs to expert advice, get all the answers you need to get your job done.