AWS Plumbing, Heating & Cooling Trusted Since 1988

Air Conditioning Installation in Nassau County

Carrier Factory Authorized Dealer. President’s Award Winner 2023 and 2024.

AWS Plumbing, Heating & Cooling has been installing and replacing air conditioning systems across Nassau County since 1988. As a Carrier Factory Authorized Dealer and back-to-back Carrier President’s Award winner for 2023 and 2024, we bring manufacturer-certified installation quality to every job. We’re family-owned, fully licensed and insured, and we serve both residential and commercial properties throughout the county.

Whether you need a full central air conditioning installation or a replacement for an aging system, we offer free evaluations so you can make an informed decision before any work begins.

Ready to get started? Schedule your free evaluation online or call (516) 217-2196 to talk through your options with our team.

Why Nassau County Customers Choose AWS Plumbing, Heating & Cooling

Our A+ rating with the Better Business Bureau reflects more than three decades of consistent work. But credentials alone don’t explain why homeowners and business owners across Nassau County keep calling us. A few things set us apart.

Vetted Technicians
Every technician we send to your property has passed a full background check and drug screening. We’re also an EPA Certified Lead-Safe contractor, which matters on older Nassau County properties where lead-containing materials may be present.

Transparent Pricing
We provide upfront assessments with clear, honest pricing. No hidden fees, no surprise charges after the work is done.

Financing Available
A new air conditioning system is a significant investment. We offer financing options to help make the project manageable.

Emergency Availability
When your cooling system fails in the middle of a Nassau County summer, we’re available on short notice to minimize downtime.

We’re also a Bosch Home Comfort Pro and a Home Depot Authorized Independent Provider, which gives us access to a broad range of equipment and manufacturer support.

Central AC and Ductless Systems for Nassau County Homes and Businesses

We install central air conditioning systems and ductless mini-split systems for homes and businesses throughout Nassau County. Working with leading manufacturers including Carrier and Bosch, we match the right equipment to your property’s specific needs and layout.

Nassau County has a large stock of older homes built before central air was standard, and many of those properties don’t have existing ductwork. For those situations, a ductless mini-split system offers an efficient path to whole-home cooling without the disruption and cost of adding ducts. We assess each property individually to recommend the approach that makes the most sense.

We also work on older and historic properties with mechanical systems that operate on earlier standards. Our services include code violation removal and modernization upgrades so your new installation can meet current requirements from day one. Air conditioning installation in Nassau County typically requires a permit, and we handle that paperwork as part of the process.

Start with a Free AC Evaluation

If you’re planning an air conditioning installation or replacement in Nassau County, the first step is understanding what your property actually needs. Our free evaluation gives you a clear picture of your options, the right system size, and honest pricing before you commit to anything.

We’re available for scheduled consultations and emergency service throughout Nassau County. Call (516) 217-2196 or reach out online to book your free evaluation with AWS Plumbing, Heating & Cooling today.

Repair vs. Replacement: When a New System Makes More Sense

Not every struggling air conditioner needs to be replaced, but some situations make continued repair the costlier path. As a general benchmark, when repair costs exceed half the system’s current value, replacement is usually the smarter investment. Beyond that calculation, a few patterns point clearly toward replacement:

Age and repair frequency: Systems more than 10 to 15 years old that require repairs every season are rarely worth keeping.
Rising energy bills: Declining efficiency shows up in your utility costs before it shows up anywhere else. If bills are climbing while comfort is dropping, the system has likely lost too much efficiency to recover.
R-22 refrigerant: Systems still running on R-22 should be replaced. The EPA phased out R-22 production, and servicing these systems is increasingly expensive and impractical.
Inconsistent cooling or humidity problems: A system that can’t hold a steady temperature or manage indoor humidity through a Nassau County summer isn’t performing its core function.

What a Proper AC Installation Actually Involves

A well-installed air conditioning system starts before any equipment is ordered. Sizing matters more than most homeowners realize. An oversized system short-cycles, shutting on and off too frequently to properly dehumidify the space. An undersized system runs constantly and still can’t keep up on the hottest days. Both failures can shorten system lifespan and drive up energy costs.

Load Calculation and System Sizing

We account for property square footage, insulation quality, window placement, occupant-generated heat loads, and Nassau County’s specific climate conditions when determining the right system size. That load calculation drives every equipment recommendation we make.

For central air conditioning installations, we also assess existing ductwork before selecting a system. Duct condition and configuration directly affect performance, and leaky or undersized ducts can reduce the efficiency gains of even a top-rated unit.

Equipment Selection Considerations

A few other factors are worth considering during the selection process:

SEER rating: The Seasonal Energy Efficiency Ratio measures how efficiently a system cools over an entire season. Higher SEER ratings can mean lower operating costs, and Energy Star-rated systems meet efficiency thresholds that can translate to utility savings over time.
Smart thermostat compatibility: Modern systems pair with smart thermostats that can improve comfort management and reduce energy waste. It’s worth confirming compatibility when selecting equipment.
Manufacturer warranty: Most manufacturers require professional installation to maintain warranty coverage. As a Carrier Factory Authorized Dealer, our installations satisfy Carrier’s warranty requirements directly.

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“Please note I do recommend them. They also provided options to make it more affordable and I am sure if you hire them they will provide the same options I have.”

- Carlos A.
“They provided such a great experience that we came back for more.”
This was our second experience with AWS. They provided such a great experience that we came back for more. From our first phone call asking for an estimate to our post-installation questions, they were prompt, professional and a pleasure to work with. The office staff returned phone calls, emails and texts with lightning speed and courtesy. The installers were very neat and explained everything that they were going to do. If they had a question about placement, we were consulted. We highly recommend AWS and were so happy that we chose them again.

- Shaw O.
“Their workmanship was excellent.”
We own a 24 unit apartment building in Brooklyn. AWS came in and installed expansion tanks and mix valves on all 24 hot water heaters. They completed the job in 3 days and dealt with our tenants in a very professional manner. Their workmanship was excellent. I highly recommend them.

- Alex M.
“We will use their services in the future.”
“The team led by Billy did a great job, the guys were courteous and professional. The team covered the floors throughout the house during installation and cleaned at the end of each day.”

- Florin F.

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Family Oriented With Hands-On, Accessible Owner
Serving All of Long Island, NYC & Queens Since 1988
Straightforward Services at Honest, Fair Prices
Highly Skilled, Happy Employees & Project Managers
Fully Vetted, Background-Checked & Drug-Tested Employees