Trusted Since 1998 · Key Largo, FL

When the Florida heat hits, does your system have the parts to keep up?

From emergency compressor replacements to routine maintenance supplies, we keep Key Largo cool with expert guidance, quality parts, and the personal service you deserve — not the rush you don't.

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Licensed & Insured
Same-Day Service
Family-Owned
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What We Offer

Comprehensive HVAC solutions for every need

Whether you're a homeowner facing an unexpected breakdown or a contractor planning a full system install, we supply the expertise and parts to get it done right.

Parts & Supplies

Compressors, condenser coils, evaporators, thermostats, refrigerants, and every component your system demands — stocked and ready.

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Repair Services

Fast, reliable diagnostics and repairs for residential and light commercial units. We fix it right the first time — guaranteed.

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Preventive Maintenance

Keep your system running efficiently through the harshest Florida summers. Seasonal tune-ups that catch problems before they become emergencies.

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New Installations

Expert guidance from selection to installation. We help you choose the right system for your home's unique layout and cooling needs.

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Emergency Service

AC died on a 95° day? We understand urgency. Emergency call-outs available for Key Largo residents when you need us most.

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Contractor Support

Volume pricing, priority ordering, and dedicated account management for licensed HVAC contractors across the Florida Keys.

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HVAC equipment and parts display at Steve's A/C Supply in Key Largo
Technician performing HVAC maintenance in the Florida Keys
25+ Years Serving
the Florida Keys
About Us

A Key Largo institution
you can rely on

Steve's A/C Supply has been a cornerstone of the Key Largo community since 1998. What started as a small parts counter has grown into the Florida Keys' most trusted destination for HVAC supplies, repair, and installation — all under one roof.

We know these islands. We know how the salt air, humidity, and relentless sun take their toll on cooling systems. That's why we stock only the quality components that stand up to tropical conditions — and why our team treats every customer like a neighbor (because most of you are).

In-stock parts for all major brands
Expert staff — not just order takers
Serving residential & commercial clients
Competitive pricing, no hidden fees
Testimonials

What our neighbors say

"Our AC went out in the middle of July and Steve's had the part in stock and a technician out within hours. They saved us from sweating through the worst week of the year. Can't recommend them enough."

Margaret T. Key Largo Resident

"As a contractor, I need a supplier who knows their stuff and doesn't waste my time. Steve's has been my go-to for years — knowledgeable staff, competitive pricing, and they always have what I need."

Robert D. Licensed HVAC Contractor

"We replaced our entire system with Steve's help — from selection to installation. They walked us through every option and never pushed anything we didn't need. Honest people in an industry that doesn't always have them."

Linda & Tom H. Key Largo Homeowners
Ready to Get Started?

Don't wait for the next heat wave.
Let's get your system sorted.

Whether it's a quick part swap or a full system overhaul, we're here to help. Stop by the shop, give us a call, or send us a message — we'll get you back to comfort fast.

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Get in Touch

Visit us or
reach out anytime

We're conveniently located on the Overseas Highway and always happy to help — whether you know exactly what you need or you're still figuring it out.

Address 103100 Overseas Hwy,
Key Largo, FL 33037
Hours Mon–Fri: 8:00 AM – 5:00 PM
Sat: 9:00 AM – 1:00 PM
Sun: Closed

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Have a question or need a quote? Fill out the form and we'll get back to you as soon as possible.

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