Commercial HVAC
Restaurants, offices, retail stores and churches across Northeast Florida. Rooftop package units and split systems, a measured diagnosis, a written quote and a clean invoice.
At a glance
Equipment
A package unit holds the compressor, both coils and the blower in one cabinet, usually on the roof or a slab. Belts, filters, condensate pans and outdoor coils all sit in the weather.
Some have economizers or multiple compressor stages. Each is checked and measured, not just switched on.
Smaller offices, storefronts and church buildings often run several residential-style split systems. That means more outdoor units, more air handlers and more drain lines to keep track of.
Each system gets its own readings, so you can see which one is costing you money.
Where systems work hardest
Kitchen heat and cooking vapor load the system and coat coils and filters. A dining room that won’t cool shows up in the reviews.
Long run hours, full rooms and equipment heat. Comfort complaints often trace back to airflow or controls.
Door traffic pulls in hot, humid air all day. Systems that can’t keep up leave stores sticky by afternoon.
Large rooms used a few days a week. The system has to pull down heat and humidity before people arrive.
What we measure
You see the readings. If something needs repair, you get a written quote before any work starts.
How a job runs
Call (904) 467-1100, book online or request a callback. Tell us the equipment, the symptom and when the space is open.
Commercial diagnostic is $149, waived if you approve a recommended repair over $300.
Written quote before work. After the repair, an invoice your bookkeeper can file.
JSEB-certified vendor
Langston’s is JSEB-certified as a Jacksonville Small and Emerging Business, which matters to organizations that track small-business vendors. It is also a member of the Jacksonville Chamber of Commerce.
Restaurants and stores with walk-ins, reach-ins or ice machines can use the same contractor for commercial refrigeration.
Straight answers
$149, waived if you approve a recommended repair over $300. You get a written quote before any work starts.
Yes, along with commercial split systems and air handlers.
Yes. Langston’s services walk-in coolers and freezers, reach-ins, prep tables and ice machines.
Yes. Langston’s is certified as a Jacksonville Small and Emerging Business (JSEB).
Monday through Saturday, 8 AM to 8 PM. Call (904) 467-1100, book online or request a callback.
Langston’s Heating & Air Conditioning · Licensed CMC1251311 · Mon–Sat 8 AM–8 PM
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