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Mark Johnson & Sons Plumbing commercial technician servicing a restaurant grease trap in North Louisiana

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.

(318) 319-0220

4.9 · 4,400+ reviews

Verified Google reviews

24/7 emergency responseLicensed & insuredServing North Louisiana since 1997
  • 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

Reviewed by Mark Johnson & Sons' LA-licensed master plumber (#1874) Last updated June 2026

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

  1. 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
  2. Apartment buildings and multi-family — shared main line service, water heater maintenance across units, fixture repair, tenant response coordination
  3. Property management companies — portfolio-level service agreements across multiple buildings
  4. HOAs and condo associations — shared systems, common area plumbing, capital project planning
  5. Office buildings — tenant improvement plumbing, restroom remodels, emergency response, preventive maintenance
  6. Retail — fitouts, new store opens, lease-end closures, emergency backup response
  7. Medical and dental offices — specialized plumbing including vacuum systems, amalgam separators, water quality
  8. 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.

Licensed Louisiana contractorOwn trucks, own crewsFlat-rate, quoted upfront

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.

Or call now — (318) 319-0220

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  • FREE

    Commercial walkthrough and quote

    Qualified properties only. No obligation.

    Expires 12/31/2026

  • 15% OFF

    First commercial service call with new service contract

    New commercial customers only. One per property.

    Expires 12/31/2026

Mention coupon when booking. One offer per household.

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

Mark Johnson & Sons commercial service truck at a North Louisiana restaurant

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.

(318) 319-0220

Commercial dispatch

24/7

Across Ruston, Monroe, Shreveport, Bossier City, and North Louisiana.

The Process

How a Commercial Service Call Runs

Mark Johnson & Sons Plumbing commercial crew responding to an emergency main line call at a North Louisiana apartment complex

On the truck

Professional tools, parts, and diagnostics — every call.

  1. 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.

  2. On-site assessment

    Commercial tech arrives with appropriate equipment — commercial jetter, larger camera rig, commercial parts. Assessment includes system scope, property impact, and options.

  3. 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.

  4. 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.

  5. 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.

Members save 15%Classic Membership · $189/yr

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
Best value

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.

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.

(318) 319-0220

LA Master Plumbing #1874 · Backflow Cert #28131 · Master Natural Gas Fitter #LMNGF9062 · State Contractors #35794

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