Serving St. Charles and St. Louis
Plumbing Leak and Pipe Repair
Pipe leaks, valves, shutoffs, low water pressure
What We Do
A dripping pipe, damp cabinet or unexplained increase in your water bill deserves a closer look. R.S. Johnson Plumbing LLC assesses plumbing leaks, failed fittings and shutoff valves, then explains the repair options before work begins.
- Supply line and drain line leak repair
- Shutoff valve and pressure-reducing valve replacement
- Frozen pipe repair and prevention
- Repiping sections or whole homes where older materials are failing
What to Expect
Request service through Housecall Pro, or call or text to discuss the problem. Estimates are free, with no service-call fee. We review the proposed work and pricing with you, and send an arrival text before the visit.
Common Problems We See
- Stains on a ceiling
- Soft spot in drywall
- Musty smell in a closet
- Water bill jumped
- Dripping shutoff valve
- Low pressure through the house
Tell Us Where You Notice the Problem
A leak may be obvious under a sink or show up as a stain away from the pipe. Tell us when you first noticed it, whether it happens continuously or only when a fixture runs, and which areas are affected. Photos of visible moisture and nearby plumbing can help the team understand the problem before the visit.
A Targeted Repair or a Larger Replacement?
A failed fitting or valve may need a focused repair. Recurring leaks or deteriorated pipe can warrant a discussion about replacing a section of line. We assess the affected plumbing, explain the proposed scope and review pricing before you decide how to proceed.
Serving Homeowners Across the Area
Based in O'Fallon, MO, we serve homeowners in St. Charles County and west St. Louis County, including O'Fallon, Wentzville, St. Peters, Chesterfield, Ballwin and Kirkwood. Share your ZIP code when requesting service so the team can confirm scheduling for your address.
Service AreasCommon Questions
Can You Repair a Leaking Shutoff Valve?
Yes. Shutoff valves, supply lines and leaking fittings are part of our plumbing repair work. Tell us which fixture the valve serves and whether the leak is active when you contact us.
Do You Repair Both Supply and Drain Lines?
Yes. We handle supply line and drain line leaks. Let us know whether water appears continuously or only when you use a sink, shower, toilet or appliance.
Does a Leak Mean My Whole House Needs Repiping?
Not necessarily. The source of the leak and the condition of the surrounding plumbing determine the options. We explain whether a local repair, section replacement or broader work makes sense for the problem we find.
How Do I Request Help With an Active Leak?
Call or text 314-220-1827 for an active leak or after-hours emergency. Emergency service is available 24/7; the team confirms availability and arrival timing. For a routine repair, you can also submit a website service request.
Ready to Get Started?