Best Plumbers in Rockville, MD
Researched by Directory Ventures Editorial Team · Last updated April 22, 2026
Compare top top-rated plumbers professionals in Rockville. Read real reviews, check credentials, and get free quotes.
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Plumbers Cost Guide
*Estimates based on Rockville area averages. Get a personalized quote above.
Frequently Asked Questions
How do I choose the right plumber?
Confirm the plumber holds a current state license (master or journeyman depending on the job) and carries active liability insurance — request a current certificate before work starts. Compare at least two or three Google-rated plumbers in your city before calling, and ask for a written estimate before any work begins.
What should I expect to pay for plumbing service in my area?
A diagnostic visit or service call runs $75–$150. Drain clearing costs $100–$350; toilet replacement $250–$550 installed; water heater replacement $900–$1,800 (tank) or $1,500–$3,500 (tankless). Sewer camera inspection is $150–$400.