Baltimore, MD · Licensed & Insured · 15+ Years
Plumber in Baltimore, MD — Water Heater, Sewer & Water Line Repair
Specializing in water main replacement, sewer line services, water heaters & underground line repair throughout Baltimore City, Baltimore County, Anne Arundel & Howard County.
Licensed Master Plumber
15+ Years Experience
Warranty-Backed Repairs
Fully Licensed & Insured
5-Star Rated
What we do best
Plumbing Specialists
ProStream focuses on the infrastructure work most plumbers hand off: buried water and sewer lines, mains, heaters and pump systems.
Water Main Replacement
Full replacement of failing or leaking water service mains, from the street to your meter.
Learn MoreSewer Main Replacement
Collapsed, root-invaded and offset clay sewer mains replaced with modern PVC.
Learn MoreWater Heater Installation
Tank and tankless water heater repair, replacement and code-correct installation.
Learn MoreUnderground Line Repair
Locating, excavating and repairing buried water and sewer lines with minimal disruption.
Learn MoreSump Pump Installation
Primary and battery-backup sump pump systems sized for Maryland groundwater.
Learn MoreWater Service Repair
Pinhole leaks, pressure loss and damaged service lines diagnosed and repaired.
Learn MoreFull service list
All ProStream Plumbing Services
From a dripping fixture to a full basement waterproofing system, one licensed team handles it.
Why homeowners choose us
Baltimore's Trusted Specialty Plumber
Licensed Master Plumber
Every job is performed and stood behind by a Maryland licensed master plumber — not a rotating crew of subcontractors.
Warranty-Backed Every Job
Repairs and replacements are warranty-backed. If something isn't right, we come back and make it right.
15 Years Experience
Fifteen-plus years of Baltimore-area water mains, clay sewer lines, and century-old rowhome plumbing.
Customer-First Approach
Straight answers, written scope, clear pricing, and a clean worksite when we leave.
Project gallery
Real Jobs, Photographed on Site
Photos from ProStream job sites across Baltimore and Anne Arundel County.
Water main replacement
New copper service entry with PRV, main shutoff and backflow protection.
Sewer main replacement
Clay sewer main replaced with PVC, set to grade in an open-cut trench.
Water heater install
Gas water heater swap with new venting, expansion tank and shutoff.
Latest updates
Recent Jobs & Updates from ProStream
Service areas
Serving Baltimore & Surrounding Communities
Counties served: Baltimore City · Baltimore County · Anne Arundel County · Howard County
FAQ
Plumbing Questions, Answered
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