Plumbing
NORTH LOUISIANA'S PREMIER PLUMBING COMPANY
From a running toilet to a whole-home repipe — one licensed crew, flat-rate pricing, same-day response across North Louisiana.
4.9 · 4,400+ reviews
Verified Google reviews
4.9★ on Google
4,400+ reviews
24/7 Emergency
60–90 min dispatch
Licensed & insured
LA Master Plumber #1874
North Louisiana
Ruston to Shreveport
Flat-rate pricing
Quoted before we start
Overview
Every Plumbing Job, One Crew
Mark Johnson & Sons Plumbing has served North Louisiana since 1997 — veteran-owned, family-operated, and licensed for every plumbing job a home or business can throw at us. Leak repairs, drain cleaning, water heater swaps, tankless conversions, whole-home repipes, gas line work, sewer repair, and full bathroom remodels all run through one crew on our own payroll.
One accountable crew, flat-rate pricing
No subcontractors. Every truck, every tech, every crew is a Mark Johnson & Sons employee — the person on-site is the person accountable to the job, background-checked and licensed before their first call. Every quote is flat-rate and handed to you before we touch a tool, so the number you hear is the number you pay. If the scope changes mid-job, we stop and talk before doing any more work.
Same-day service and 24/7 emergencies
Most non-emergency calls booked before noon get a same-day slot. True emergencies — a burst pipe, no hot water in winter, a gas smell, or a sewage backup — get a licensed tech on-site in 60 to 90 minutes, any hour, any day, weekends and holidays included. Our phones are answered live around the clock, never by a machine.
Repairs, installs, and whole-home projects
We fix the small stuff — running toilets, dripping faucets, slow drains — and we handle the big projects: repiping a galvanized or poly-B home in PEX-A or copper, replacing a failed sewer line without digging up the yard, converting to a tankless water heater, or roughing in the plumbing for a full bathroom remodel. Every job, big or small, gets the same licensed crew, the same flat-rate honesty, and the same written warranty when we're done.
Serving North Louisiana homes and businesses
From Ruston and Grambling to Monroe, West Monroe, Shreveport, and Bossier City, we cover residential and commercial plumbing across the region — single-family homes, rental properties, restaurants, and offices alike. Use the services below to jump to the exact job you need, or call and tell us what's happening and we'll point you to the right fix.
Since 1997
Your local crew
- 4.9★
- Google rating
- 4,400+
- 5-star reviews
- 30
- Years serving N. LA
Warning signs
Signs It's Time to Call a Plumber
Small plumbing problems rarely fix themselves — and the early ones are the cheap ones. If any of these sound familiar, get it looked at before it turns into water damage.
Water stains on ceilings, walls, or the base of cabinets
A spike in your water bill with no change in usage
Multiple slow or gurgling drains at the same time
Low water pressure throughout the house
Rusty, cloudy, or sulfur-smelling water from the taps
No hot water, or hot water that runs out fast
The sound of running water when everything is off
Sewage odor indoors or backups at the lowest drain
Wet or unusually green patches in the yard over the sewer line
Browse services
Every plumbing service we handle
25+ core services across repair, install, and emergency. Tap any card for full pricing, process, and FAQs.
21 services · tap any for full details
Drain Cleaning
Clogged sinks, slow drains, backed-up mains — snake, hydro-jet, and camera inspection.
Hydro Jetting
High-pressure scrub for grease, scale, and root-lined pipes. Residential and commercial.
Video Sewer Inspection
Camera down the line to find the exact cause of recurring clogs or pre-purchase checks.
Trenchless Sewer Line Repair
Fix cracked or collapsed sewer lines without digging up the yard.
Main Sewer Lining
Seamless liner installed inside your existing pipe — 40+ year lifespan.
Sewer Line Repair
Repair or replace damaged sewer lines — root intrusion, breaks, bellied pipe.
Water Heater Repair & Install
Tank water heater repair, replace, flush, and emergency no-hot-water calls.
Tankless Water Heater
Endless hot water, 25–30% less gas, 15–20 year life. Install and conversion.
Faucet Repair & Install
Leaks, drips, and new fixture installs for kitchens, baths, and laundry rooms.
Toilet Repair
Running toilets, clogs, flange repair, wax seal, and full toilet replacement.
Burst Pipe Repair
Frozen pipe blowouts, slab breaks, and sudden leaks — fixed fast, dried out clean.
Water Leak Detection
Hidden leaks behind walls, under floors, or in slabs — found without tearing out drywall.
Gas Line Repair & Leak Detection
Licensed natural gas work — leak detection, shut-off repair, new appliance hookups.
Whole-Home Repipe
PEX-A or copper replacement for galvanized and poly-B homes. 50-year life.
Water Filtration Systems
Whole-home filtration for chlorine, sediment, VOCs — better taste, cleaner fixtures.
Water Softener Install
Cuts hard water calcium — longer fixture life, better soap use, cleaner dishes.
Sump Pump Install & Repair
Basement flood protection — new installs, replacement, battery backup.
Slab Leak Repair
Hidden leaks under concrete slabs — thermal detection and targeted repair or reroute.
Bathroom Remodel Plumbing
Rough-in, relocation, and fixture set for bathroom remodels and renovations.
24/7 Emergency Plumber
Burst pipe, gas leak, sewage backup — licensed tech on-site in 60–90 minutes.
Commercial Plumbing
Restaurants, apartments, HOAs, and property management — scheduled and emergency.
The Process
How a Plumbing Call Works
On the truck
Professional tools, parts, and diagnostics — every call.
Call answered live
A real person picks up — day, night, weekend, or holiday. We triage the problem, and if it's an active leak or a gas smell, we're already dispatching a tech.
On-site diagnosis
Your licensed tech finds the actual cause, not just the symptom, and shows you what's going on before quoting a dime.
Flat-rate quote up front
You get the full price in writing before any work starts. The service call is waived when you have us do the repair.
Fixed right, most often same day
Common parts ride on every truck, so most repairs wrap the same visit. Bigger projects get scheduled fast with a firm price locked in.
Cleaned up and warrantied
We haul off old parts, pull permits where code requires, and back the work with a written warranty on parts and labor.
Pricing
How We Price Plumbing Work in North Louisiana
Flat-rate, quoted before we start — never hourly. An after-hours surcharge applies on nights, weekends, and holidays. Here's how we arrive at the number on a plumbing call.
Flat rate, quoted before we start
You get the full price for the job up front — not an hourly meter you watch climb. You approve it before a tool comes out of the truck.
The quote is the price
It doesn't move once work begins. If something unexpected turns up behind a wall or under a slab, we stop and talk it through with you before going further.
Members save 15% on every repair
Membership starts at $189 a year and takes 15% off all plumbing, heating, and cooling repairs, with priority scheduling on every call. The Premium Plan adds same-day service and drops after-hours charges entirely.
Financing available
Bigger jobs — a system replacement, a repipe, a sewer line — can be financed through GoodLeap. Apply online in a few minutes.
Every job is priced for your home and what it actually needs — tell us what's going on and we'll get you a firm number, free and with no obligation.
Compare
Repair, Repipe, or Replace?
Not every plumbing problem needs the same fix. Here's how we help you weigh a quick patch against a permanent solution.
| Feature | Spot Repair | Whole-Home Repipe | Fixture / Appliance Replace |
|---|---|---|---|
| Best when | One isolated leak or clog | Repeat leaks, galvanized or poly-B pipe | Old faucet, toilet, or water heater failing |
| Lifespan | Fixes the one spot | 50+ years, whole system | 10 – 20 years per fixture |
| Downtime | Same day | 1 – 3 days | Same day, most cases |
| Our call | Great for newer pipe | Cheapest per-year on old pipe | When the fixture, not the pipe, is the problem |
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.
Same-day response
Most calls get a licensed tech on-site the same day. True emergencies — burst pipe, no water, sewage backup — dispatch in 60 to 90 minutes.
Licensed & insured
Louisiana state-licensed plumbing contractor, fully bonded, every tech background-checked. License numbers on every truck.
North Louisiana
Ruston, Monroe, West Monroe, Shreveport, and Bossier City. 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.
24/7 dispatch
Water where it shouldn't be? We're already on the way.
Burst pipe, failed water heater, sewage backup — emergency plumbing calls get a licensed tech on-site in 60 to 90 minutes, any hour, any day.
Emergency dispatch
60min
Across Ruston, Monroe, Shreveport, Bossier City, and North Louisiana.
Membership Plans
Two plans. Whole-home peace of mind.
From $189 a year, 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
Value Plan
$189/year
Everything it takes to keep the house maintained and your repairs discounted.
Each additional HVAC unit is $89/year
Premium Plan
$389/year
Everything in the Value 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
Everything plumbing. Leak repair, drain cleaning, water heater install, tankless conversions, gas line work, repipes, bathroom remodel plumbing, trenchless sewer repair, commercial plumbing contracts. If it carries water, gas, or waste in a North Louisiana home or business, we handle it.
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