Compare the highest-rated hvac professionals in Nassau, New York. All contractors are licensed, insured, and verified through our rigorous screening process.
Full-service HVAC contractor specializing in high-efficiency system installations and complex heating repairs for Nassau's variable climate. Known for expertise in both modern heat pumps and traditional furnace systems.
Family-owned HVAC specialist with deep knowledge of older home systems common in Nassau. Excels at retrofitting historic properties with modern, efficient HVAC while preserving architectural integrity.
Provides comprehensive HVAC services with strong focus on preventive maintenance programs tailored to Nassau's seasonal extremes. Offers premium maintenance plans that include twice-yearly tune-ups.
Nassau's HVAC market serves a rural/suburban community with extreme seasonal demands - humid summers requiring robust AC and cold winters demanding reliable heating. Many homes use oil heat alongside newer heat pump technology. Contractors must be versatile with both modern and legacy systems. The market is competitive with approximately 25 providers serving the area, with emphasis on emergency services during temperature extremes.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Nassau regulations and climate
Get answers to common questions about hvac services in Nassau, New York.
For a standard efficiency replacement in Nassau County, homeowners can expect to pay between $5,000 and $12,000 for a full system, depending on the unit's size (measured in tons/BTUs), brand, and efficiency rating (SEER/HSPF). Costs are often higher here than national averages due to Long Island's higher labor and living costs, and the complexity of retrofitting older homes. Investing in a higher-efficiency unit, while more upfront, can significantly offset our high electricity and gas rates from providers like PSEG Long Island and National Grid.
The optimal times are during the shoulder seasons—late spring (April-May) before the summer humidity hits and early fall (September-October) before winter's first freeze. Scheduling during these windows ensures you avoid the peak summer and winter rush when HVAC companies are busiest with emergency no-cool/no-heat calls, which can lead to longer wait times and potential surge pricing. This timing also gives you a chance to address any issues discovered during a tune-up before the extreme weather arrives.
Yes, it's crucial to work with a licensed contractor who will pull the required local permits for installations, which ensures compliance with Nassau's building codes. Most importantly, New York State offers significant incentives through the NYS Clean Heat program, which provides rebates for installing high-efficiency heat pumps and other electric heating/cooling systems. Additionally, PSEG Long Island often has its own rebate programs for high-efficiency air conditioners and smart thermostats, helping to reduce the overall project cost.
Always verify that the contractor holds a valid New York State HVAC license and carries both liability and workers' compensation insurance. Look for established local companies with strong reviews on community-focused platforms and ask for references from homes in your specific area (e.g., Levittown, Garden City, etc.), as they will understand the common construction styles and challenges. Be wary of door-to-door salespeople after major storms and always get detailed, written estimates from at least three companies before deciding.
Older Nassau homes, especially those built in the mid-20th century, often have undersized or deteriorating ductwork, insufficient insulation, and outdated electrical panels that can't handle modern high-efficiency systems. A reputable local contractor will perform a Manual J load calculation to correctly size new equipment for your home's specific layout and insulation level, rather than simply matching the old unit's size. They may also recommend duct sealing, insulation upgrades, or a panel upgrade to ensure your new system operates safely and efficiently.