Best Residential Plumbing Repair Prices In Maryland

Trust the Maryland Residential Plumber Repair Experts

Now Serving Howard & Montgomery Counties!

For 40 years, National Water Service has been the trusted name in water services. We now offer master plumber and plumbing crew services for residents of Maryland, raising the standard even higher. Call now for timely repairs!

Garbage Disposals

Accurate residential plumbing repair estimates at fair prices - our promise to you.

With decades of experience in water services, we’re among Maryland’s leading plumbing companies.

Our expert team collaborates with master plumbers to deliver the highest quality water heater repair and installation, sump pump installation, garbage disposal repair and installation, and general plumbing and heating services.


  • Upgrading Fixtures
  • Installation of Hot Water Heaters & Boilers
  • Plumbing for New Constructions

Garbage Disposal Repair

  • Upgrade kitchen fixtures
  • Trust our plumbing services
  • Expert garbage disposal installs

Sump Pump Installation

  • Advanced tools and tech
  • Reliable customer support
  • Emergency plumbing services available 24/7


  • Rooter services
  • Clogs, leaks, and foul odors
  • Solutions for tree roots and more

Gas Piping

  • Installation of new gas piping for appliances or outdoor needs
  • Maintenance for leaks and valve inspections
  • Gas pipe fitters available for repairs 

Outdoor Kitchens

  • Drainage solutions
  • Water piping and gas piping
  • Seasonal maintenance and winterization 


Don’t take our word for it. Take theirs.


Keith S | Google

We would give more stars if we could. We had an emergency on a Sunday morning and Dave was AMAZING! He answered the phone right away and was able to fix the problem that morning. He was kind and helpful and ended up saving us money! We highly recommend National Water Service. An easy FIVE STARS.

Jane S | Google

Highly recommend this company. Fixed the issues and were reasonably priced.

Brian C | Google

We lost our water on Sunday and could not reach our regular plumber. My initial contact with Dave was met with an eagerness to help try and restore our water ASAP. He guided me through some procedures to attempt a “reset” over the phone (all done without getting $$ upfront). They arrived Monday with the pump and controller but took the time to troubleshoot and diagnose the root cause (rather then just replace the pump and controller). National Water Service will be our first call whenever we have a plumbing need in the future.

Why Use Our Plumbing Services?

At National Water Service, our master plumber handles all plumbing needs. Our experienced crews prioritize customer support and high workmanship standards. We now offer comprehensive plumbing services. Trust us for reliable and affordable solutions that meet your needs. 

40+ Years of Experience

Professional Tools

5-Star Rated

Timely and Affordable

Get Discounts As a NEW Customer

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