Nassau County's Most Trusted HVAC Experts Since 1967
Long Island
Services
Insured
Complete HVAC Solutions for Your Home
Heating Services
Expert furnace and boiler repair, installation, and maintenance. Factory-certified on all major brands with same-day emergency service available.
Air Conditioning
Central AC and ductless cooling solutions. Keep your home comfortable with efficient installations, repairs, and seasonal maintenance.
Indoor Air Quality
Air purifiers, humidifiers, ventilators, and UV lamps. Breathe cleaner, healthier air with our comprehensive IAQ solutions.
Water Filtration
Whole-home water filtration systems for cleaner, safer water. Free water testing and customized solutions for your family's needs.
Emergency Services
24/7 emergency heating and cooling repair. When your system fails, we respond fast with experienced technicians ready to help.
Service Plans
Protect your investment with preventative maintenance plans. Priority scheduling, exclusive discounts, and peace of mind year-round.
Why Long Island Families Choose Air Design
Factory-Certified Experts
Trained on all major brands
Same-Day Service
Available 7 days a week
Carrier Presidents Award
Top-tier service recognition
Community Focused
Local, family-owned business
Simple, Transparent Service Process
CONTACT & CONSULTATION
Call or schedule online. We'll discuss your needs and schedule a convenient appointment time. Emergency? We respond 24/7.
FREE ESTIMATE & ASSESSMENT
Our factory-certified technicians assess your system and provide a free estimate. We'll explain your options, how each performs, and what to expect.
EXPERT INSTALLATION OR REPAIR
Our experienced team completes your installation or repair with professional workmanship. We're neat, efficient, and respect your home.
YOUR SATISFACTION GUARANTEED
We ensure everything works perfectly before we leave. Our courteous team is always available to answer questions and provide ongoing support.
Latest HVAC Tips & News
Beyond the Air Filter: How UV Light Protects Your Home and HVAC System
Indoor air quality conversations often begin with the HVAC filter. Homeowners are reminded to replace it regularly, choose the appropriate efficiency level, and avoid allowing dust to restrict system airflow. These steps are important, but filtration addresses only part of what may be circulating through the home. Mold spores, bacteria,
Could Ductless Heating Be the Answer to Your Home’s Hardest-to-Heat Space?
Most Long Island homes have at least one room that never feels as comfortable as the rest. It may be a finished attic that stays cold throughout winter, a bedroom above the garage that loses heat faster than nearby rooms, or a sunroom that becomes difficult to use once temperatures
Late-Summer HVAC Planning: Why Now Is a Smart Time to Think About Heat Pumps
Late summer can be a revealing moment for a home’s HVAC system. The air conditioner has been working through weeks of heat and humidity, energy bills may be top of mind, and the first cooler nights are starting to feel closer. While heating season is not here yet, August gives