- Master Plumbers
- 45+ Years Experience
- Free Estimates
Plumbing and Gas Fitting Services for Homes and Businesses
National Plumbing and Mechanical Services is proud to offer complete plumbing and gas fitting services in Maryland, DC and Northern Virginia for homes and businesses. We are your go-to plumbing company for emergency plumbing, gas lines, residential upgrades, commercial maintenance, and more plumbing near you.
Why Choose Us?
- Expertise You Can Trust
- Reliable Service
- Customer-First Approach
- Upfront & Competitive Pricing
- Quality Craftsmanship
- 45+ Years of Experience
Building Trust Through Experience, Quality, and Satisfaction
Accreditations
Featured Services
Tankless Water Heaters
Tankless Water Heaters
National Plumbing and Mechanical Services is proud to provide tankless water heater services for water heater installations, operating maintenance, and repairs.
Sump Pumps
Don’t let your sump pump fall into damage or disrepair. A properly functioning sump pump stops flooding of your basement and low lying areas of your homes.
Sump Pumps
Don’t let your sump pump fall into damage or disrepair. A properly functioning sump pump stops flooding of your basement and low lying areas of your homes.
How Can We Be Of Service To You?
Emergency Plumbing
Emergency Plumbing
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Water
Heaters
Water
Heaters
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Drain
Cleaning
Drain
Cleaning
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Faucet
Installations
Faucet
Installations
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Gas
fittings
Gas
fittings
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Outdoor
Kitchens
Outdoor
Kitchens
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Leak
Detection
Leak
Detection
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Garbage
Disposals
Garbage
Disposals
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Our Testimonials
Don’t just take our word for it
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Latest Reviews
When was the last time you had your Water Tested or household Water Treatment & Appliances serviced?
“An ounce of prevention is worth a pound of cure” – Benjamin Franklin
- Prevent potential issues like leaks and inefficiency in your water systems.
- Ensure the safety and quality of your drinking water, avoiding contamination.
- Maintain optimal performance and longevity of your water appliances.
- Avoid costly repairs or replacements by identifying problems early.
- Ensure compliance with safety standards and regulations for water quality.
Trust Our Maryland, DC and Northern Virginia Plumbing and Gas Fitting Experts
With over 45 years of experience in water repair and management, we are proud to offer dedicated master plumbers to homes and businesses. Get affordable pricing, competitive quotes, and quality materials that last.
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Everything we can do for you
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Locations We Service
Maryland
- Highland
- Clarksville
- Potomac
- Darnestown
- Germantown
- Gaithersburg
- Ellicott City
- Woodbine
- Glenwood
- Glenelg
- Frederick
- Dayton
- Fulton
- Ashton
- Mt. Airy
- Rockville
- Silver Spring
- Baltimore
- Annapolis
Northern Virginia
- Leesburg
- Waterford
- Purcellville
- Round Hill
- McLean
- Great Falls
- Arlington
- Fairfax
- Alexandria
Washington DC
- All Locations