Your system runs the way it’s supposed to. Rooms cool evenly, humidity stays in check, and your energy bills don’t spike every time temperatures hit the 90s.
When your air conditioning installation in North Merrick, NY is done right, you’re not calling for repairs three months later. You’re not dealing with hot spots in bedrooms or that clammy feeling that means your AC is running but not actually cooling. The system works, and it keeps working.
Long Island summers are no joke. Heat advisories, humidity that makes 85 feel like 100, and stretches where your AC runs nonstop just to keep up. If your system isn’t sized correctly for your home or installed by someone who knows Nassau County’s climate, you’ll feel it immediately. Uneven cooling. High bills. Constant adjustments to the thermostat that don’t actually help.
Proper central air installation in North Merrick, NY means your equipment matches your square footage, your ductwork is sealed and insulated, and your thermostat placement makes sense. It’s not complicated, but it requires experience and attention to detail most fly-by-night installers skip.
Excellent Air Conditioning and Heating Service has been handling AC unit replacement in North Merrick, NY and throughout Nassau County since the early ’90s. We’re licensed, insured, and locally owned.
That means we know the building codes, the climate challenges, and what actually works in older Long Island homes versus new construction. We’re not a national franchise following a script. We’re the team that shows up, assesses your space, and tells you what you actually need—not what makes us the most money.
North Merrick homeowners deal with a specific set of cooling challenges. Older homes without ductwork. Additions that never cool properly. Undersized systems that run constantly and still can’t keep up. We’ve seen it all, and we’ve fixed it all. You’re not getting a one-size-fits-all recommendation. You’re getting a system that makes sense for your home, your budget, and your comfort.
We start with a free in-home estimate. That’s where we measure your space, check your existing ductwork (if you have it), talk about your cooling priorities, and give you a transparent price. No hidden fees, no pressure tactics.
Once you’re ready to move forward, we schedule your installation. Most home AC installation projects in North Merrick, NY take one to two days depending on whether we’re working with existing ductwork or installing a ductless system. We coordinate equipment delivery, pull any necessary permits, and keep you updated on timing.
On installation day, our crew shows up on time, protects your floors and furniture, and gets to work. For central air, that means setting the outdoor condenser, connecting refrigerant lines, installing or modifying ductwork, mounting the indoor air handler, and setting up your thermostat. For ductless systems, we mount the indoor units, drill a small hole for the line set, install the outdoor compressor, and test everything.
Before we leave, we walk you through how to use your new system, answer any questions, and make sure every room is cooling the way it should. You’ll have our number if anything comes up, but when the job’s done right the first time, you won’t need it.
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You’re getting a system that’s properly sized for your home. That’s the first thing most installers get wrong. Oversized units cycle on and off constantly, never removing humidity. Undersized units run nonstop and still can’t keep up. We calculate your cooling load based on square footage, insulation, window placement, and sun exposure so your equipment matches your actual needs.
You’re getting professional installation that meets Nassau County codes and manufacturer specifications. That means proper refrigerant charge, sealed ductwork, correct airflow, and a thermostat placed where it can actually read your home’s temperature accurately. These details matter more than the brand name on the equipment.
You’re getting options that make sense for North Merrick homes. If you have ductwork, central air is usually the most cost-effective choice. If you don’t, ductless mini-splits let you avoid the $10,000+ cost of installing ducts while giving you room-by-room control. If you’re replacing an old system, we’ll tell you whether your existing ductwork is worth keeping or needs modification.
And you’re getting energy efficiency that shows up in your monthly bills. Newer systems use 30-50% less energy than units from the early 2000s, and proper installation ensures you’re actually getting that efficiency. Many North Merrick homeowners also qualify for rebates through PSEG Long Island or New York State’s Clean Heat Program, which can cover a significant portion of your installation cost.
Most residential installations take four to eight hours for a straightforward replacement where we’re swapping out an old system with a new one using existing ductwork. If you’re installing central air for the first time and we need to modify or add ductwork, expect one to two full days.
Ductless mini-split installations are usually faster—often completed in a single day—because there’s no ductwork involved. We’re mounting indoor units, running a line set through the wall, installing the outdoor compressor, and testing the system.
The timeline also depends on your home’s setup. Attic access, basement configuration, and whether we need to run new electrical all factor in. We’ll give you a realistic timeframe during your estimate so you know exactly what to expect.
In Nassau County, you’re typically looking at $4,500 to $8,000 for a standard central air replacement in an average-sized home with existing ductwork. That includes the outdoor condenser, indoor air handler or furnace with cooling coil, installation labor, and any necessary permits.
If you’re installing central air for the first time and need ductwork, add another $10,000 to $18,000 depending on your home’s layout. That’s why many older Long Island homes without existing ducts go with ductless mini-splits instead, which typically run $3,000 to $5,000 per zone.
Higher-efficiency systems cost more upfront but save you money over time through lower energy bills. We’ll show you the numbers during your estimate so you can decide what makes sense for your budget. And if you qualify for rebates through PSEG Long Island or state programs, we’ll help you navigate those to bring your net cost down.
Yes. Nassau County requires anyone installing, repairing, or maintaining residential HVAC systems to hold a Home Improvement Contractor license issued by the Nassau County Department of Consumer Affairs. That’s not optional—it’s the law.
Hiring an unlicensed contractor puts you at risk. If something goes wrong, you have no recourse. If the installation doesn’t meet code, you could face fines or issues when you sell your home. And if someone gets hurt on your property, you could be liable.
We’re fully licensed and insured, which means you’re protected and your installation meets all local requirements. It also means we know Nassau County’s building codes, permit processes, and inspection requirements. That’s not something a contractor from out of state or someone working under the table can offer.
Absolutely. Ductless mini-split systems are perfect for older Long Island homes that were built before central air became standard. These systems don’t require ductwork—just a small three-inch hole through the wall to connect the indoor unit to the outdoor compressor.
That makes them ideal for homes where installing ducts would mean tearing up ceilings and walls. They’re also great for additions, converted garages, or rooms that don’t cool well with your existing system.
Ductless systems give you room-by-room control, which means you’re not cooling spaces you’re not using. They’re also more efficient than window units and don’t block your windows or create security risks. Many North Merrick homeowners use them to supplement an existing central air system or as a complete replacement when ductwork isn’t feasible.
PSEG Long Island offers rebates for high-efficiency cooling systems, typically ranging from a few hundred dollars for qualifying central air units to more for heat pumps. The exact amount depends on the system’s efficiency rating and whether it meets their program requirements.
New York State’s Clean Heat Program offers even larger incentives—covering up to 70-100% of heat pump installation costs based on household income. This program specifically targets air-source heat pumps, which include most ductless mini-split systems.
You can often stack these programs with the federal energy tax credit, which covers up to 30% of installation costs for qualifying systems. We’ll help you figure out which rebates you’re eligible for and handle the paperwork to make sure you get every dollar you qualify for. These incentives can reduce your out-of-pocket cost by thousands of dollars, making a high-efficiency system much more affordable.
We prioritize emergency situations, especially during heat advisories when temperatures and humidity make indoor conditions dangerous. If you’re elderly, have young children, or have health conditions affected by heat, let us know when you call.
While we can’t always complete same-day installations—equipment availability and scheduling constraints are real—we’ll work to get your new system installed as quickly as possible. In some cases, we can expedite equipment delivery through our local supplier relationships.
If installation will take a few days, we’ll discuss temporary cooling solutions to help you stay safe and comfortable until your new system is running. When your AC fails during a North Merrick heat wave, we understand it’s not just an inconvenience—it’s a health and safety issue. We treat it that way.
