AC Installation in Greenvale, NY

Cool Comfort That Actually Lasts

Professional AC installation that keeps your home comfortable all summer long without the headaches.

A worker in a checkered shirt and orange hard hat inspects or installs a ceiling air conditioning unit in a modern indoor space.

Our Reviews

Some Feedbacks from Our Customers!

A person installs or maintains an air conditioning unit, using a wrench to adjust connectors attached to yellow hoses and a blue vacuum pump on the ground nearby.

Professional HVAC Installation Services

What Proper Installation Gets You

Your AC runs efficiently from day one. No more sweating through those brutal Long Island summers wondering if your system will hold up.

You get consistent cooling in every room. Not that annoying situation where your bedroom feels like a sauna while the living room is freezing.

Your energy bills stay reasonable because the system is sized right and installed correctly. No more sticker shock when the electric bill arrives in August.

Greenvale Air Conditioning Contractors

We Know Long Island HVAC

We’ve been handling AC installations across Greenvale and the surrounding Long Island area for years. We understand how the humid summers and unpredictable weather patterns affect your cooling needs.

We’re licensed, insured, and focused on getting the job done right the first time. No shortcuts, no surprises, no disappearing after the check clears.

When you call us, you’re working with contractors who live and work in this area. We know the local building codes, the permit requirements, and what systems work best in Long Island homes.

A technician in a cap and work clothes stands on a step ladder, servicing an air conditioning unit mounted high on a white wall in a bright, modern room with large windows.

AC Installation Process

Here's How We Handle Installation

First, we assess your space and cooling needs. We measure your home, check your electrical setup, and look at your existing ductwork. This isn’t a quick glance – we need to get the sizing right.

Next, we provide a detailed estimate that breaks down equipment costs, labor, permits, and any additional work needed. You’ll know exactly what you’re paying for before we start.

Installation day, we show up on time with the right equipment and materials. We protect your floors, install your new system according to manufacturer specifications, test everything thoroughly, and clean up completely. You get a system that’s ready to keep you cool and documentation for your warranty.

A person kneels while installing or repairing an air conditioning unit, holding cables and securing a white pipe to the back of the unit. Tools and equipment are visible in the background.

Ready to get started?

Explore More Services

About Excellent Air Conditioning

Get a Free Consultation

Complete AC Installation Services

What's Included in Every Installation

Every AC installation includes proper system sizing based on your home’s square footage, insulation, and layout. We don’t guess – we calculate the right capacity so your system runs efficiently without overworking.

We handle all permits and inspections required by local codes. You don’t need to figure out the paperwork or deal with the town office.

Your installation includes connecting refrigerant lines, electrical hookups, thermostat installation, and complete system testing. We make sure everything works properly before we leave your property.

A technician kneels on a tiled floor while installing or repairing an air conditioning unit, connecting wires and pipes to the outdoor unit.
Most residential AC installations take 6-8 hours for a straightforward replacement, or 1-2 days for new installations requiring ductwork or electrical upgrades. The timeline depends on your home’s setup and whether we’re replacing an existing system or installing AC for the first time. We’ll give you a realistic timeframe during our initial assessment so you can plan accordingly. Complex installations involving major ductwork modifications or electrical panel upgrades may take longer, but we’ll discuss that upfront.
AC sizing depends on your home’s square footage, ceiling height, insulation quality, number of windows, and sun exposure – not just the size of your old unit. We perform a proper load calculation to determine the right capacity, typically measured in tons or BTUs. An oversized unit will cycle on and off frequently, wasting energy and failing to remove humidity properly. An undersized unit will run constantly and never adequately cool your home. Most Long Island homes need between 2-5 tons of cooling capacity, but we’ll calculate your specific requirements during our assessment.
Yes, most AC installations in Greenvale require permits, especially for new installations or major system replacements involving electrical or refrigerant work. We handle the permit application process and coordinate any required inspections with the town. This ensures your installation meets local building codes and safety requirements. Proper permits also protect you if you sell your home later – buyers and inspectors will see that the work was done legally and professionally. Skipping permits might save money upfront but can create expensive problems down the road.
Central AC installation typically costs more upfront because it requires ductwork throughout your home, but it provides whole-house cooling from a single outdoor unit. Ductless systems cost less per indoor unit but you’ll need multiple units to cool an entire home. If you already have ductwork, central AC replacement is usually more cost-effective. If you’re adding AC to a home without existing ducts, ductless might be cheaper since you avoid the expense of installing ductwork throughout your house. We’ll evaluate your specific situation and explain the cost differences for your property.
Most modern AC units require 220-240 volt electrical service and adequate amperage capacity in your electrical panel. Older homes sometimes need electrical upgrades to safely operate new AC systems. We check your electrical panel capacity and existing wiring during our initial assessment. If upgrades are needed, we’ll coordinate with qualified electricians to ensure your electrical system can handle the new equipment safely. This is especially important in older Greenvale homes that may have outdated electrical systems not designed for central air conditioning loads.
You get manufacturer warranty coverage on the equipment itself, typically 5-10 years on major components like the compressor and heat exchanger. Our installation work is covered by our labor warranty, usually 1-2 years depending on the scope of work. Proper professional installation is actually required to maintain your manufacturer warranty – DIY installation or using unlicensed contractors can void equipment warranties. We provide all warranty documentation and register your equipment with the manufacturer. Keep these documents safe, as you’ll need them for any future warranty service or if you sell your home.