DUCTLESS MINI-SPLIT SYSTEMS

Some spaces just never get comfortable — a converted garage, a sunroom, a bonus room over the garage, a home office, a workshop, or an addition the original system was never sized to cover. A ductless mini-split fixes that without tearing into walls to run ducts. Mark Johnson & Sons sizes, installs, and services mini-splits across Ruston, Monroe, West Monroe, Shreveport, Bossier City, and Grambling.

A mini-split pairs a small outdoor condenser with one or more indoor heads, each with its own thermostat, so you only condition the space you're actually using. That's efficient in Louisiana's long cooling season, and because most units are heat pumps, they take the chill off our mild winters too — right down through the occasional hard freeze. They run quiet, and with no ducts there's no 20–30% duct loss dragging down efficiency.

What we install and service

• Single-zone systems — one outdoor unit, one head, for a single room, garage, or shop (typically 9,000–24,000 BTU)
• Multi-zone systems — one condenser feeding 2–5 indoor heads, each independently controlled
• Head styles — wall-mount, ceiling cassette, and low-wall/floor console units
• Brands we install and service — Mitsubishi, Daikin, plus Fujitsu, LG, and the mini-split lines from Carrier and Bryant

Single-zone vs. multi-zone

One head handles one open space beautifully — a shop, a sunroom, a master bedroom. When you're conditioning a whole addition or several rooms that each need their own setting, a multi-zone condenser feeding separate heads is the right call. We size to the room's actual heat load, not a rule of thumb, so you don't pay for zones or tonnage you don't need — an oversized mini-split short-cycles and never pulls the humidity out, which matters in our climate. A single-zone unit is also the cheapest, most efficient way to solve one stubborn room without touching the central system that's already handling the rest of the house.

What Mark Johnson & Sons does differently

We pull a real vacuum on every line set and verify the charge before we call it done — a rushed install that skips this is the number-one reason a mini-split fails early in our humidity. Our own licensed techs run the line set through a small, tidy penetration, mount the head level so the condensate drains right, and register the manufacturer warranty. Ask about our service savings agreement plans — your mini-split gets covered in the Spring AC tune-up along with priority scheduling and 15% off any repair.