
Commercial
COMMERCIAL PLUMBING — RESTAURANTS, APARTMENTS, OFFICES
Restaurant grease lines, apartment main backups, office build-outs, HOA shared systems, retail fitouts. Dedicated commercial crew across North Louisiana, 24/7 emergency, service contracts available.
4.9 · 4,400+ reviews
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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
What commercial work we handle — and why dedicated matters
Commercial plumbing isn't just residential plumbing in a bigger building. Restaurants have grease traps and specialized kitchen sink configurations that need jetting on a schedule. Apartment buildings have shared mains where one clog affects 20 tenants and needs to be solved in an hour, not a day. HOAs have party-wall plumbing and shared water/sewer systems with specific repair procedures. Office buildings have restroom codes, ADA requirements, and tenant improvement projects where the plumbing has to be flexible enough to survive next year's floor plan change. Retail fitouts need fast, well-documented work that passes city inspection on the first try.
Mark Johnson & Sons runs a dedicated commercial crew with the equipment and experience to handle all of it. Separate commercial emergency line, separate trucks with commercial jetters, cameras rated for 4"+ mains, larger capacity equipment for apartment and office work. We maintain active service contracts with restaurants, apartment buildings, HOAs, property management companies, and retail property owners across North Louisiana.
Who we work with
- Restaurants and food service — grease trap cleaning, kitchen sink jetting, hand sink installs, mop sink repair, ice machine lines, and emergency backup response in the middle of a dinner rush
- Apartment buildings and multi-family — shared main line service, water heater maintenance across units, fixture repair, tenant response coordination
- Property management companies — portfolio-level service agreements across multiple buildings
- HOAs and condo associations — shared systems, common area plumbing, capital project planning
- Office buildings — tenant improvement plumbing, restroom remodels, emergency response, preventive maintenance
- Retail — fitouts, new store opens, lease-end closures, emergency backup response
- Medical and dental offices — specialized plumbing including vacuum systems, amalgam separators, water quality
- Schools and churches — large-capacity fixtures, ADA compliance, aging infrastructure
Services we offer commercial clients
Emergency response — dedicated commercial 24/7 line with 60-90 minute dispatch target across North Louisiana. Sewage backups, burst pipes, grease line failures — the kind of things that shut a business down until fixed.
Scheduled maintenance — quarterly, semi-annual, or annual jetting and service contracts for restaurants, apartments, and HOA shared systems. Usually 20-40% cheaper than à-la-carte pricing and prevents the emergency calls.
Grease trap cleaning and hydro jetting — required by most North Louisiana municipalities on a schedule. We handle the pumping, documentation, and city reporting requirements.
Backflow testing and repair — annual testing required on most commercial properties per Louisiana state regulations. We're certified testers and handle the paperwork.
Fixture install and repair — commercial-grade toilets, urinals, sinks, water heaters (tank and tankless), drinking fountains, mop sinks, and specialty fixtures.
Pipe repair and replacement — aging commercial mains, repipe projects, and drain line replacement with minimal business disruption.
Tenant improvement work — remodel plumbing, new buildout rough-in, code upgrades, and coordination with GCs.
Permits and inspections — North Louisiana cities require permits on commercial plumbing work. We handle pulling permits, scheduling inspections, and documenting everything for property records.
Why dedicated commercial matters
Commercial plumbing problems have commercial consequences. A clogged restaurant drain line during lunch rush is thousands of dollars in lost revenue. A failed water heater in an apartment building is a tenant complaint escalating to legal exposure. A frozen pipe in an empty office over winter break is a six-figure insurance claim. These aren't residential-urgency problems — they're business-critical.
Our commercial crew is trained to respond accordingly. Fast dispatch, clear documentation, insurance-compliant paperwork, and coordination with facility managers and property managers so the right decision-maker is always in the loop. We don't run commercial work through our residential queue — it has its own dispatch, its own crew, and its own response metrics.
What Mark Johnson & Sons does differently
Separate commercial dispatch line, separate commercial crew, separate service agreements. 24/7 emergency response across North Louisiana. Certified backflow testers, grease trap pumpers with city-compliance reporting, and licensed gas technicians. Volume pricing for multi-unit and portfolio clients. Master Service Agreements available with agreed-upon hourly rates, flat-rate repair pricing, and SLA-level response commitments.
Free quote
Request a commercial quote
Tell us about your property and service needs. We'll follow up within 1 business day with a scoped quote.
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New commercial customers only. One per property.
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Warning signs
When Commercial Clients Should Call Us
These are the situations where a residential plumber won't cut it — or where a dedicated commercial crew saves real money.
Restaurant kitchen drains backing up during service
Apartment building main line backed up affecting multiple units
Grease trap hasn't been cleaned in 90+ days (code requirement)
Backflow preventer annual test is due or overdue
Tenant improvement project needs plumbing rough-in
Building is 30+ years old with aging cast iron mains
Need a service contract to prevent emergency calls
Multiple buildings need portfolio-level service
After-hours emergency with tenants or customers affected
Commercial water heater failed in a restaurant, apartment, or office

Keep the business running
Every hour closed is money lost.
Commercial problems have commercial consequences. Dedicated crew, separate dispatch, 60-90 minute emergency response. Service contracts prevent the emergencies entirely.
Commercial dispatch
24/7
Across Ruston, Monroe, Shreveport, Bossier City, and North Louisiana.
The Process
How a Commercial Service Call Runs

On the truck
Professional tools, parts, and diagnostics — every call.
Commercial dispatch
Dedicated commercial line, not the residential queue. Dispatch asks for the property type, situation, urgency, and decision-maker contact. For emergencies, the commercial crew is rolling within minutes.
On-site assessment
Commercial tech arrives with appropriate equipment — commercial jetter, larger camera rig, commercial parts. Assessment includes system scope, property impact, and options.
Scope and quote
Written scope and flat-rate or time-and-materials quote (depending on service contract), sent to the property manager or owner for approval. Emergency work may proceed with verbal approval and written follow-up.
Repair or service
Commercial emergencies prioritize getting the business back open — often a bridge repair first, then scheduled full repair at a low-impact time. Scheduled maintenance (jetting, grease trap) runs on your timeline.
Documentation and follow-up
Written work order with photos, code compliance documentation (grease trap manifests, backflow test reports), invoice sent to your billing contact, and follow-up scheduling if maintenance is needed. Everything insurance and audit-friendly.
Pricing
How We Price Commercial Plumbing
Commercial pricing depends on property type, service scope, and whether you carry a service contract. Contract pricing lands meaningfully below à-la-carte, and everything is quoted before work begins.
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
The 1-Year Classic Membership is $189 a year and takes 15% off all HVAC and plumbing repairs, with reduced after-hours rates and priority scheduling on every call.
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.
Classic Membership
One plan. Whole-home peace of mind.
For $189 a year, members get 15% off every HVAC and plumbing 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
Classic Membership
$189/year
One flat yearly price covers your whole home — everything listed, no per-visit fees, no surprises.
Questions? (318) 319-0220
Cancel anytime · 1-yr min
FAQ
Commercial FAQs
Yes. Commercial dispatch runs separately from our residential queue — commercial emergencies get immediate priority and our dedicated commercial crew is typically rolling within minutes. Separate phone line, separate trucks, separate parts inventory for commercial equipment.
Related services
Related Plumbing Services

Hydro Jetting
Commercial jetting for restaurants, apartments, HOAs.

Drain Cleaning
Standard commercial drain service for single-fixture clogs.

Video Sewer Inspection
Commercial sewer scope for property inspections.

Water Heater Repair & Install
Commercial water heater service for multi-unit properties.

24/7 Emergency Plumber
Emergency response for any commercial plumbing crisis.
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