Water Heater Repair & Replacement
Tank and tankless water heaters, gas and electric. Fast diagnosis and same-week replacement when your water heater is leaking or failing.
Learn moreVirginia Licensed & Insured · Master Plumber & Master Gas Fitter
Water Heater, Faucet & Toilet Repair Experts Serving Northern Virginia
Mercy's Plumbing has provided honest, code-compliant plumbing and gas fitting throughout Northern Virginia since 2013 — from water heater replacement and faucet repair to toilet installs, gas lines, and full-service plumbing.
Same-Week Water Heater Replacement*
Upfront Pricing, No Surprises
Clean, Respectful Technicians
★★★★★
5-Star Rated Service
Real customer reviews
Plumbing & Gas Fitting Services
What we fix, replace and install across Northern Virginia.
From a dripping faucet to a full water heater replacement, our licensed technicians handle it — cleanly, correctly, and to Virginia code.
Faucet Repair & Replacement
Dripping faucets, worn cartridges, low pressure and full kitchen or bathroom faucet upgrades, installed clean and leak-free.
Learn moreToilet Repair & Replacement
Running toilets, clogs, wobbly bowls and outdated fixtures replaced with modern, water-efficient toilets.
Learn moreGas Line & Gas Plumbing
Master Gas Fitter services for gas line installation, gas appliance hookups, leak checks and code-compliant repairs.
Learn moreSump Pumps & Drains
Sump pump installation and repair, clogged drain clearing, and garbage disposal service to keep water moving where it should.
Learn moreGeneral Plumbing
Pipe repair, repiping, water line service, and fixture installation for kitchens, bathrooms, laundry rooms and utility spaces.
Learn moreWhy Mercy's Plumbing
Done Right the First Time.
Mercy's Plumbing was built on a simple idea: treat every home like it's your own. We focus on careful workmanship, honest communication, and practical solutions — not upselling.
- Master-licensed expertise — a Master Plumber and Master Gas Fitter oversee every job.
- Clear, upfront communication — you know the plan and the price before work starts.
- Respect for your home — work areas are protected and left clean when we're done.
- Real local experience — serving Northern Virginia homes and businesses since 2013.
How It Works
Getting your plumbing fixed shouldn't be complicated.
Call or Text
Reach a real person at (703) 401-5921, available 24/7 Sunday through Thursday and Friday until 4 PM. Tell us what's going on.
We Diagnose
A licensed technician evaluates the problem on site and explains exactly what's wrong in plain language.
Upfront Plan
You get a clear explanation of the repair or replacement options before any work begins — no surprises.
Done Right
We complete the work to code, test everything, and leave the job site clean and orderly.
Our Plumbing Work
Real work. Real Mercy's Plumbing projects.
These are actual photos from plumbing jobs completed by Mercy’s Plumbing — no stock photos, no AI-generated project images.
Customer Reviews
Satisfied customers across Northern Virginia.
★★★★★
“We had a very positive experience working with Mercy’s Plumbing. Our technician Julio was knowledgeable and professional. Highly recommended.”
Lisa H. · Vienna, VA · Pro Referral · Ice Maker Line★★★★★
“I’m very impressed with the work. Julio did an excellent job replacing the toilet parts—he was efficient, and made sure everything was working properly before leaving. He was professional, friendly, and the quality of work was outstanding.”
Yekaterina B. · Burke, VA · Pro Referral · Drain Repair★★★★★
“Julio contacted me by phone and email. He agreed to come to my home to offer me an estimate. He spent 1.5 hours with me trouble shooting and planning for my project. He was very patient while offering experience to address things I had not considered.”
Wendy R. · Woodbridge, VA · Pro Referral · Leak Repair★★★★★
“Julio was awesome! He contacted me the same day. By the next day, he was at my home, updating my kitchen sink plumbing, installing an updated refrigerator water line, and adjusting the washing machine’s drainage hose. He worked quickly and left the area clean.”
Pro Referral Customer · Alexandria, VA · Pro Referral · Ice Maker Line★★★★★
“Julio is knowledgeable plumber. I needed areas to work in my house he completed all the work in timely manner. I am satisfied with his work and would hire him again when needed.”
Lutful G. · Fairfax, VA · Pro Referral · Sump Pump★★★★★
“Julio is the best contractor I’ve ever worked with. He is communicative, prompt and extremely thorough. His work is excellent and he takes the time to explain your options without pushing anything.”
Claire S. · Annandale, VA · Pro Referral · Bathtub InstallService Area
Proudly serving Northern Virginia.
From Arlington to Leesburg, Great Falls to Dumfries — if you're in Northern Virginia, we can help.
Dale CityWoodbridgeManassasManassas ParkDumfriesTriangleQuanticoLortonFairfaxFairfax StationSpringfieldBurkeCliftonCentrevilleChantillyAnnandaleOaktonViennaMcLeanGreat FallsRestonHerndonArlingtonAlexandriaFalls ChurchLeesburgWarrenton
FAQs
Frequently asked questions.
What areas of Northern Virginia does Mercy's Plumbing serve?+
Mercy's Plumbing serves homes and businesses throughout Northern Virginia, including Prince William, Fairfax, Arlington, and Loudoun County communities such as Woodbridge, Dale City, Manassas, Fairfax, Springfield, Alexandria, Arlington, Falls Church, Vienna, McLean, Reston, Herndon, Centreville, Chantilly, and Leesburg. Visit our service area page for the full list.
Is Mercy's Plumbing licensed and insured?+
Yes. Mercy's Plumbing is Virginia licensed and insured, with a Master Plumber and a Master Gas Fitter on staff. We've been serving Northern Virginia since 2013.
What plumbing services do you offer?+
We specialize in water heater repair and replacement (tank and tankless, gas and electric), faucet repair and replacement, toilet repair and replacement, gas line and gas plumbing work, sump pumps, drain clearing, and general plumbing repairs and installations.
Do you offer emergency water heater replacement?+
We understand a leaking or failed water heater can't wait. Call or text us and we'll do our best to get a technician out quickly and replace your water heater as soon as equipment and scheduling allow.
What are your business hours?+
We're available 24 hours a day Sunday through Thursday, and Friday from 12:00 AM to 4:00 PM. We're closed on Saturdays.
How do I get a quote?+
Call or text (703) 401-5921 and describe the issue. We'll walk you through next steps and get a technician scheduled to evaluate the job and provide clear pricing before any work begins.
