Skip to main content
Menu
(318) 319-0220
Mark Johnson & Sons Plumbing — Ouachita Parish

HVAC inSwartz,LA

Swartz and eastern Ouachita Parish rely on Mark Johnson & Sons Plumbing for veteran-owned, 24/7 plumbing — water heaters, drains, sewer lines, and slab leaks.

(318) 319-0220
Licensed30 yrs4.9★24/7 Emergency
  • 4.9★300+ Google Reviews
  • LicensedLouisiana Licensed HVAC Contractor
  • BBB A+Accredited since 1997
  • 24/7Emergency Service in Swartz

What to Expect

How it works in Swartz.

01

Call Us

A real person answers 24/7. Tell us what's wrong — we'll give you a ballpark quote on the phone and schedule a time that works.

02

We Arrive

Our plumber arrives in a Mark Johnson & Sons Plumbing van, in uniform, shoe covers on. Diagnoses the issue and quotes flat-rate before any work starts.

03

Fixed Right

We complete the work, clean up, and walk you through everything we did. Warranty covers our work for the life of the parts.

Mark Johnson & Sons Plumbing

Need AC or heating service in Swartz? Call now.

Real people answer 24/7. Same-day service available.

(318) 319-0220

Heating & Cooling in Swartz

Licensed HVAC Contractor Serving Swartz, LA

Mark Johnson & Sons has run heating and cooling in Swartz since 1997, out of the same dispatch as our plumbing side — so one call covers the whole house. Every tech who shows up is our own employee: Louisiana-licensed, background-checked, drug-tested, and trained on the equipment that actually sits in Swartz homes. We don't sub the work out, we don't hand you to a call center, and we quote flat-rate before we start — no diagnostic surprises, no high-pressure replacement pitch when a repair will do.

What we handle in Swartz

Why HVAC Works Harder in Swartz

Swartz's semi-rural, larger-lot homes face the same hot, humid summers and mild winters as the rest of the Monroe area, with heat pumps common and steady AC repair and replacement demand. With a mix of suburban build eras across Swartz, we see the full range of equipment ages and duct conditions in a single service area — and the climate is unforgiving to all of it. Compressors that would coast for twenty years in a mild climate get worked hard here; refrigerant charge, capacitor health, and coil cleanliness all matter more when the system barely gets a night off from June through September.

Swartz is an unincorporated community that functions as Monroe's rural-suburban buffer to the northeast — a mix of established homes on larger lots and newer suburban-style construction, without a historic town core. That's why diagnosis beats guesswork. A Swartz home that isn't cooling in Swartz might have a failed run capacitor, a contactor that's pitted shut, a slow refrigerant leak at a flare fitting, a frozen evaporator coil from low airflow, or simply a filter nobody's changed in a year. We measure — superheat and subcooling, static pressure, temperature split, amp draw — and tell you which one it is, instead of adding refrigerant to a leak and sending you a bill.

Air Conditioning Repair in Swartz

AC repair is the highest-volume call we run in Swartz, and most of it breaks into a handful of failures: a bad run or start capacitor (the single most common no-cool cause), a burned contactor, a seized or noisy condenser fan motor, a clogged condensate drain tripping the safety switch, or low refrigerant from a leak. On R-410A systems we find and fix the leak before we recharge — topping off a leaking system is throwing money at the ground. On older R-22 units, where refrigerant is phased out and expensive, we'll tell you honestly when another repair stops making sense.

Every truck carries the common failure parts — capacitors, contactors, fan motors, hard-start kits, thermostats — so most Swartz repairs are same-visit, not a "we'll order the part and come back Thursday" when your house is 85 degrees inside.

AC & Heat-Pump Replacement — Sized Right

When a system is past its service life — generally 12 to 15 years in this climate, sooner for R-22 units — replacement usually pays for itself in efficiency and reliability. The single biggest mistake we correct on Swartz replacements is sizing: an oversized AC short-cycles, never runs long enough to pull humidity out of the air, and leaves the house cold and clammy. We run an actual Manual-J load calculation on the home — square footage, insulation, window load, duct condition — and size the equipment to it, rather than "matching what was there" or rounding up a ton to be safe.

We install high-efficiency AC, heat-pump, and dual-fuel systems from Trane, Carrier, and Rheem, set the refrigerant charge by weight and verify it by subcooling, and commission every install so it actually hits its rated performance. Financing is available, and we'll walk the real payback math with you before you sign anything.

Heating, Furnaces & Heat Pumps in Swartz

Swartz's winters are mild with the occasional hard freeze, which makes heat pumps a strong fit — they cool in summer and heat efficiently down to the temperatures this region actually sees, and pair with electric or gas backup for the cold snaps. We service and install heat pumps, gas furnaces, and dual-fuel systems, and our no-heat calls come down to the usual suspects: a dirty flame sensor, a cracked or failed hot-surface igniter, a blower motor or capacitor, a tripped limit switch, or a bad control board. Every no-heat visit includes a safety check — heat exchanger inspection and, on gas equipment, a look for combustion and carbon-monoxide issues.

Ductwork & Airflow

A perfectly good system can't cool a Swartz home if the ducts are leaking half the air into the attic. Leaky, undersized, or crushed ductwork is behind a huge share of "my AC can't keep up" and "one room is always hot" complaints. We test static pressure and airflow, seal and repair duct runs, add or resize returns where a system is starved for air, and balance the registers so the back bedrooms get the same air as the ones nearest the handler. Fixing airflow often recovers more comfort than a bigger unit would have.

Humidity & Indoor Air Quality

Humidity is the other half of comfort in North Louisiana — a house that's cool but damp feels worse than one a few degrees warmer and dry, and the moisture drives mold, dust mites, and that musty summer smell. A correctly-sized system that runs longer cycles pulls humidity out on its own; where that isn't enough, we add whole-home dehumidification, better media or HEPA filtration, and UV or duct solutions for the mold and allergen load a humid climate creates. If someone in the Swartz home has allergies or asthma, indoor air quality is worth taking seriously, not treating as an upsell.

Maintenance That Actually Prevents Breakdowns

Because the equipment works year-round here, the twice-a-year tune-up that comes with our Classic Membership — a spring AC visit and a fall heating visit — is the single cheapest way to keep a Swartz system from dying on the hottest or coldest day of the year. Maintenance holds efficiency (a dirty coil or low charge quietly runs up your power bill), catches a weak capacitor or a marginal contactor before it strands you, and protects the manufacturer's warranty, which almost always requires documented annual service. Members also get priority scheduling and a discount on repairs.

Licensing, Permits & Code in Swartz

HVAC change-outs and new installs in Swartz require mechanical permits and inspections, and refrigerant handling is federally regulated — both are licensed work, not a handyman job. Mark Johnson & Sons carries the state mechanical licensing, EPA-certified techs, and the general liability and workers' comp coverage any Swartz homeowner should ask about before letting a crew into the house. Unincorporated — Ouachita Parish governs permitting; private well and septic are standard outside the Greater Ouachita Water service area. We pull the permits, schedule the inspections, and hand you the signed-off paperwork for your records and any future home sale — you don't chase the Ouachita Parish building department, we do.

24/7 Emergency HVAC in Swartz

No cooling in a Louisiana July is not an inconvenience — for infants, older adults, and anyone with a health condition, it's a genuine emergency, and a no-heat night during a hard freeze is the same. Swartz's families choosing larger-lot, semi-rural living within commuting distance of monroe/west monroe deserve an HVAC company that actually answers at 2am. Unincorporated Ouachita Parish community northeast of Monroe/West Monroe Our emergency line is live around the clock, answered by a real dispatcher — not a voicemail — and our typical urgent response time across Swartz and the rest of the 71281 service area is under two hours. If your system is down in dangerous heat or cold, stop reading and call (318) 319-0220.

30 years serving Swartz.

Same-day service · Flat-rate pricing · Family-owned since 1997.

By the Numbers

Mark Johnson & Sons Plumbing in Swartz — By the Numbers

30

Years in Business

300+

5-Star Reviews

4.9★

Google Rating

24/7

Emergency Response

Our AC quit during a July heat wave and Mark Johnson & Sons had a new system in by that evening — they did a real sizing calc instead of just swapping what was there, and the house has never cooled better. Honest quote up front, clean install, and they walked us through everything. Best HVAC experience we've had in Swartz.

Joanna W.

Swartz · AC Installation

Verified Google Review

Mark Johnson & Sons Plumbing

Ready to book HVAC service in Swartz?

Flat-rate pricing, no surprises. We'll quote before we start.

(318) 319-0220

FAQs

Heating & Cooling FAQs — Swartz, LA

Yes — we're a full HVAC contractor as well as a plumber, so one call covers your whole home. Our licensed techs service and install central AC, heat pumps, gas and electric furnaces, ductless mini-splits, thermostats, and ductwork across all of Swartz and Ouachita Parish, with the same flat-rate pricing and 24/7 live answering as our plumbing side.

We run same-day HVAC service for most Swartz calls booked before 2pm, and our 24/7 emergency line handles no-cooling and no-heat calls around the clock — a real dispatcher answers, never a machine. In a North Louisiana summer, a dead AC is a genuine emergency, and our typical urgent response time in Swartz is under two hours.

We quote the repair honestly first and never push a replacement you don't need. As a rule of thumb, if the system is past 12–15 years, uses phased-out R-22 refrigerant, or the repair runs more than about a third of replacement cost, replacement usually pays for itself in efficiency — especially given how many hours a Swartz AC runs each year. When replacement is the right call, we size the new system with a real load calculation, not a guess.

Yes. Our Classic Membership includes two tune-ups a year — a spring AC visit and a fall heating visit — which is the single cheapest way to keep a Swartz system from failing on the hottest or coldest day, hold its efficiency, and protect the manufacturer's warranty. Members also get priority scheduling and a discount on any repairs.

More Mark Johnson & Sons Services in Swartz

One team for every home service in Swartz

Mark Johnson & Sons runs plumbing and HVAC out of the same dispatch. One call, one trusted team, flat-rate pricing across every service we offer.

Why Mark Johnson & Sons Plumbing

Why we're your trusted plumbing partner.

North Louisiana homeowners have leaned on Mark Johnson & Sons for over two decades. Here's why.

Licensed & background-checked

Every tech is state-licensed, background-checked, and continuously trained.

Same-day response, 24/7

Real humans on the phone, techs dispatched fast, any hour, any day.

Upfront flat-rate pricing

We quote before we start. No hidden fees. No bait-and-switch.

No-mess guarantee

Shoe covers on, drop cloths down. We leave your home cleaner than we found it.

Owner Mark Johnson of Mark Johnson & Sons Plumbing

4.9

300+ Google Reviews

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

Call Now