Plumbing
MONROE'S FULL-SERVICE PLUMBER
Old-Fashioned Service with Modern Technology — Right Here in Monroe, LA
4.9 · 3,569 reviews (2 profiles)
Verified Google reviews
4.9★ on Google
3,569 reviews · 2 profiles
24/7 Emergency
Call for current availability
Licensed & insured
LA Master Plumber #1874
North Louisiana
Ruston to Monroe
Flat-rate pricing
Quoted before we start
Overview
Every plumbing job in Monroe, one local crew
Mark Johnson & Sons Plumbing has served North Louisiana since 1997, and Monroe has been at the heart of our territory from day one. Mark and his sons Michael and John built this company on the belief that homeowners deserve straight answers, fair prices, and a plumber who shows up when he says he will. Nearly three decades later, those same values keep us earning 5-star reviews all across Ouachita Parish.
We are veteran-owned and family-operated, accredited by the Better Business Bureau with an A+ rating since 2012, and proud of more than 300 five-star reviews and a 4.9-star average. When you call us, a live person answers — 24 hours a day, 7 days a week, including holidays. We stage fully stocked trucks locally so most repairs are completed in a single visit, and every job comes with upfront flat-rate pricing before any work begins.
From older craftsman homes near ULM to newer builds throughout Ouachita Parish, we handle every residential plumbing need in Monroe. Burst pipes, water heater failures, slab leaks, sewer line problems, drain clogs, and whole-house water filtration — one trusted local crew handles it all. Our Monroe warehouse is at 201 Victory Blvd Suite 225 — a crew and parts facility rather than a walk-in office, but it keeps our trucks close, and we are proud to be your neighbors.
Since 1997
Local crew in Monroe
- 4.9★
- Google rating
- 3,569
- Google reviews (2 profiles)
- 30
- Years serving N. LA
Browse services
Plumbing services we run in Monroe
6 services · tap any for full details
Emergency Plumbing
Live 24/7 answering and fast dispatch for burst pipes, backups, and any true plumbing emergency.
Water Heater Repair & Installation
Tank and tankless water heater repairs, replacements, and new installations done right the first time.
Water Filtration Systems
Whole-house filtration and water softener installs for cleaner, better-tasting water at every tap.
Drain Cleaning
Professional drain clearing and hydro-jetting to get stubborn Monroe clogs moving fast.
Sewer Line Repair
Video camera inspection, sewer line repair, and replacement with minimal yard disruption.
Slab Leak Repair
Accurate slab leak detection and repair to protect your Monroe foundation and lower your water bill.
Why Mark Johnson & Sons
The reasons most North Louisiana homes call us twice.
In-house crews
No subcontractors. Every truck, every tech, every crew is on the Mark Johnson & Sons payroll — the person on-site is the person accountable.
Flat-rate pricing
The number you hear before we start is the number you pay. No hourly meter. No surprise add-ons. If scope changes, we stop and ask first.
Emergency scheduling
Tell us about any active leak, loss of water or sewer backup when you call. Our team will confirm current availability and discuss the next steps.
Licensed & insured
Louisiana state-licensed plumbing contractor, fully bonded, every tech background-checked. License numbers on every truck.
North Louisiana
Ruston, Monroe, West Monroe, Bastrop, and Minden. Local crews who live where they work and know the codes.
Own trucks, own tools
Cable machines, jetters, cameras, leak detectors — all in-house. No handoffs, no waiting on a subcontractor.
Service Savings Agreement Plans
Two plans. Whole-home peace of mind.
From $189 a year, service members get 15% off every plumbing, heating, and cooling repair, two complete HVAC tune-ups, a free plumbing and drain check-up, and priority scheduling on every call.
- 15% off repairs
- Priority scheduling
- 2 HVAC tune-ups/yr
- After-hours discounts
- $25 savings certificate
- Guaranteed flat-rate
Service Savings Agreement Plan
$189/year
Everything it takes to keep the house maintained and your repairs discounted.
Each additional HVAC unit is $89/year
Premium Service Savings Agreement Plan
$389/year
Everything in the Service Savings Agreement Plan, plus no after-hours charges, no travel fees, and same-day service.
Each additional HVAC unit is $89/year
Questions? (318) 319-0220
1-year term · does not auto-renew
FAQ
Plumbing FAQs in Monroe
How long has MJP been serving Monroe?
Mark Johnson & Sons Plumbing has operated in North Louisiana since 1997. We are locally owned, veteran-operated, and have served Monroe and Ouachita Parish for nearly three decades.
Do you charge extra for nights or weekend calls?
We use flat-rate pricing on every job. While after-hours emergency calls may carry a service fee, you will always know the full price before we begin any work — no surprise charges.
Are you licensed and insured in Louisiana?
Yes. Mark Johnson & Sons Plumbing is fully licensed and insured in the state of Louisiana. We are also BBB A+ accredited since 2012.
What areas of Monroe and Ouachita Parish do you serve?
We serve Monroe and the surrounding Ouachita Parish communities. Call (318) 503-8890 and a live person will confirm coverage for your address.
Get In Touch
Request a Quote
Get a free estimate
in minutes.
Tell us what's going on — we'll follow up fast with a same-day appointment or a flat-rate quote.
Available Around the Clock
Emergency?
We answer 24/7.
Burst pipe, water heater out, sewer backup? Real plumbers pick up — no answering machines. Mark Johnson & Sons Plumbing serves North Louisiana any time, day or night.
LA Master Plumbing #1874 · Backflow Cert #28131 · Master Natural Gas Fitter #LMNGF9062 · State Contractors #35794