HVAC Installation & Service in NJ — Central AC, Splits, Rooftop Units

Central HVAC for NJ restaurants, commercial spaces, and residential properties — installed under one NJ license with no subcontractors. Split systems, packaged rooftop units, central air, mini-splits. Frank's been running HVAC alongside refrigeration since the beginning. Most contractors do one or the other. We do both.

NJ License #13VH03913000 Insured & Workers' Comp 1–10 Year Warranties

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Central Heating & Air Conditioning — Cold Freeze Technologies NJ

Commercial HVAC installation — rooftop and split systems

Rooftop packaged units are the workhorse of NJ commercial HVAC. Frank specifies Carrier, Lennox, and York — brands with parts availability and manufacturer support. Installation includes curb fabrication or adapter, refrigerant line set, electrical connection, drain piping, and commissioning. Most commercial rooftop installations run $6,000–$18,000 depending on tonnage. We give you a fixed price before work starts.

Mini-split and ductless system installation

Ductless mini-splits are the right call when you need to condition a space that doesn't have existing ductwork — a server room, a dining room addition, a finished basement. Cold Freeze Technologies handles the full installation: outdoor unit placement, line set routing, indoor head mount, electrical, drainage. Most single-zone mini-split installs run $3,200–$5,800 fully installed.

Residential central air and heating in NJ

Residential HVAC is part of our scope. Full central AC installations, heat pump systems, gas furnace and air handler combinations. We pull the permits, run the load calculation, install the equipment, and commission the system. Most residential central AC installs run $4,500–$9,500 depending on home size and whether ductwork exists. No subcontractors — the same licensed crew handles residential and commercial.

"Most contractors do refrigeration OR HVAC. We do both — plus ductwork fabrication, kitchen exhaust, warehouse ventilation, and industrial-scale cooling. One call, one crew, one licensed contractor who stands behind the work."

— Frank Ferraj, Owner · Cold Freeze Technologies · 40+ years in the trade

Common questions about central heating & air conditioning

How much does commercial HVAC installation cost in NJ?

Commercial rooftop units: $6,000–$18,000 depending on tonnage and complexity. Split systems: $5,000–$14,000. Mini-splits (single zone): $3,200–$5,800 installed. Residential central AC: $4,500–$9,500. We give you a fixed price before work starts.

What HVAC brands do you install?

Carrier, Lennox, York, Daikin, Mitsubishi Electric for ductless systems. All come with manufacturer 5–10 year parts warranties. We back our labor for 1 year on top of the manufacturer warranty.

Do you pull permits for HVAC installation in NJ?

Yes — all permitted work, all inspections passed. NJ License #13VH03913000 covers the full HVAC scope. Unlicensed installs can void building insurance and create issues with code enforcement. Every job we do is by the book.

Can you install HVAC for a restaurant or commercial kitchen?

Yes — restaurant HVAC has specific requirements around kitchen heat load, makeup air to replace exhaust, humidity control, and code compliance. We handle this full scope including coordination with kitchen exhaust systems we install ourselves.