Compare the highest-rated hvac professionals in Key West, Florida. All contractors are licensed, insured, and verified through our rigorous screening process.
A premier HVAC contractor specializing in high-efficiency systems designed for Key West's corrosive salt air and extreme humidity. They are experts in installing and maintaining corrosion-resistant units and providing whole-home dehumidification solutions. Known for their rapid response emergency service, especially during hurricane season.
A family-owned and operated HVAC provider with deep roots in the Keys. They excel in servicing historic Conch houses and modern homes alike, with a focus on precise ductwork design and sealing to combat energy loss in the heat. They are a trusted partner for major brands like Trane and Carrier.
Specializes in high-performance, energy-efficient HVAC systems and smart thermostats for both residential and light commercial properties. They are a go-to for energy efficiency upgrades and rebate assistance, helping homeowners reduce costs in the intense subtropical climate. Their technicians are NATE-certified and EPA-approved.
The Key West HVAC market is uniquely shaped by its tropical savanna climate, characterized by intense sun, high humidity (over 70% year-round), and salt air that accelerates corrosion on standard equipment. Demand is perennial, with peak service calls during the extended hot season (April-October) and for emergency repairs following tropical storms. Successful local providers must be experts in installing and maintaining corrosion-resistant, high-SEER rated systems and integrating whole-home dehumidification to ensure comfort and efficiency. The market is competitive, with a strong emphasis on 24/7 emergency availability due to the critical nature of AC in the local lifestyle and tourism economy.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Key West regulations and climate
Get answers to common questions about hvac services in Key West, Florida.
The high salt content in the coastal air is highly corrosive and can rapidly deteriorate your outdoor condenser unit's coils and electrical components, while constant humidity strains the system and promotes mold growth in ducts. Crucial local maintenance includes quarterly coil cleanings with a fresh water rinse to remove salt buildup, ensuring proper drainage to handle condensation, and using a corrosion-resistant protective coating on the outdoor unit. This proactive care is essential to prevent premature failure in our harsh environment.
The absolute best time is during our mild "off-season" from late fall through early spring (November to March), before the intense heat and humidity of summer arrive. Scheduling during these months ensures greater availability from technicians, often shorter wait times for parts, and potential off-season promotional pricing. Waiting until your system fails in July or August can lead to emergency service fees and longer delays when demand is highest.
Yes, for our year-round cooling needs and historic homes, a variable-speed or two-stage air conditioner paired with a high-efficiency dehumidification mode is ideal to manage humidity without overcooling. For older, often poorly insulated Conch houses, proper system sizing via a Manual J load calculation is critical to avoid short-cycling. Additionally, considering a ductless mini-split system can be an excellent solution for adding zoned cooling to hard-to-duct additions or preserving the character of a historic property.
Prioritize contractors who are deeply familiar with the unique challenges of island systems, including corrosion control and humidity management. Verify they hold a valid Florida state Certified HVAC Contractor license (not just a local county certificate) and carry both liability and workers' compensation insurance. Look for established local companies with strong references, as they understand the logistical challenges of getting equipment and parts to the island and are more likely to provide reliable year-round service.
This is a frequent concern here, primarily caused by two factors exacerbated by our climate: restricted airflow from dirty, mold-prone air filters or clogged evaporator coils, and low refrigerant charge due to corrosion-induced leaks. A frozen system cannot dehumidify or cool properly. Immediately turn the system to "fan only" to thaw it and call a technician to diagnose the root cause—often a refrigerant leak or need for a thorough cleaning—as continuous operation while frozen can cause compressor failure.