Heating, Cooling & Indoor Air Quality Services
Professional heating, cooling, air quality, and emergency HVAC services. Transparent pricing, certified technicians, and scheduling confirmed by phone.
Nassau County homeowners and businesses depend on reliable heating and cooling systems year-round. From sub-zero winter nights that push furnaces and boilers to their limits, to humid Long Island summers that demand peak AC performance, your HVAC system is the backbone of comfort. At Home+ Air & Heat, we provide residential service plus scoped light-commercial air-conditioning service, light-commercial rooftop HVAC repair, RTU maintenance planning, and rooftop-unit replacement planning—backed by written options before approved work begins.
Whether you need a routine furnace tune-up before winter, a complete central AC installation, or a 24/7 emergency heating repair, our team diagnoses the system and provides written options before approved work begins. We service many common brands—call to confirm support for the model at the property—publish current financing terms on the financing page, and document any applicable workmanship warranty. Appointment windows and emergency ETAs are confirmed by phone; timing depends on technician availability, location, traffic, and weather.
Looking for the local company, coverage, and planning guide rather than the service directory? Visit the Nassau County HVAC contractor hub.
Our HVAC Services
From routine maintenance to emergency repairs, we cover every aspect of your home comfort system.
Cooling Services
7 servicesAC repair, central AC installation, mini-split systems, and tune-ups
Heating Services
12 servicesFurnace repair, heat pump installation, boiler service, and more
- Furnace Repair
- Heat Pump Installation
- Boiler Repair
- Furnace Installation
- Furnace Tune-Up
- Oil to Gas Conversion
Air Quality
7 servicesUV purifiers, humidifiers, duct cleaning, and ventilation solutions
- UV Air Purifiers
- Whole-Home Humidifiers
- Air Duct Cleaning
- Air Quality Testing
- CO Detectors
- Ventilation Improvements
Emergency Services
9 services24/7 emergency heating and cooling calls with ETA confirmed by phone
- Emergency Heating Repair
- Emergency AC Repair
- No Heat Emergency
- Furnace Won't Start
- Water Heater Failure
- Frozen Pipes
Additional Services
7 servicesThermostat upgrades, condenser cleaning, water heater service, and more
- Smart Thermostat Installation
- Thermostat Replacement
- Condenser Cleaning
- Water Heater Flush
- UV Light Installation
- Mini-Split Installation
When to Call an HVAC Professional
Recognizing these warning signs early can prevent costly breakdowns and keep your family safe.
Uneven Temperatures
Hot and cold spots throughout your home indicate airflow issues, ductwork problems, or an undersized system.
Strange Noises
Banging, squealing, or rattling from your furnace or AC signals worn bearings, loose parts, or a failing blower motor.
Rising Energy Bills
A sudden spike in heating or cooling costs—without usage changes—often means your system is losing efficiency.
AC Blowing Warm Air
Warm air from your AC could mean low refrigerant, a failed compressor, or a frozen evaporator coil.
Frequent Cycling
Your system turning on and off repeatedly (short cycling) stresses components and signals a thermostat or sizing issue.
Poor Indoor Air Quality
Excess dust, humidity, or musty smells indicate your HVAC system isn't filtering or ventilating properly.
Transparent Pricing
Review the included scope and price before authorizing the work.
Annual Tune-Up
Heating or cooling maintenance
- Multi-point system inspection
- Clean & calibrate components
- Safety & efficiency testing
- Written maintenance report
- Premium upgrade: +$149
Home+ Membership
First year, billed $143.88 up front · $299/year from Year 2
- 2 annual tune-ups included
- 10% off all repairs
- Waived diagnostic with repair
- Priority scheduling
- $847+ total value
What Does HVAC Service Cost?
HVAC service costs depend on the type of work, your system, and the complexity of the job. Rather than quoting a single number, we provide upfront pricing after a technician inspects your system—so you know exactly what you're paying before any work begins.
For detailed pricing on specific services, visit our individual service pages:
Financing Options Available
Financing is subject to credit approval. Review the financing page for current plans, APRs, terms, and qualification details; offers may change.
Why Homeowners Choose Home+ Air
Service qualifications and written terms you can verify
Qualified Technicians
Our technicians are EPA 608-certified and background-checked; ask the office to confirm the credentials relevant to your appointment.
Written Pricing
Review the proposed scope and price before authorizing repair, maintenance, or replacement work.
24/7 Emergency Calls
Call for a current ETA. Timing depends on technician availability, location, traffic, and weather.
Written Warranty Terms
Applicable labor and manufacturer warranty terms are documented for the approved work.
Flexible Financing
Current plans, rates, and qualification details are maintained on our financing page.
Local Nassau County Company
Based in Jericho, NY. Locally owned and operated—serving Nassau County homeowners since day one.
Our 18-Point HVAC Inspection Checklist
Every tune-up and diagnostic includes a comprehensive system evaluation covering safety, efficiency, and performance.
Safety & Controls
System Components
Efficiency & Airflow
How We Work
Our simple 5-step process for heating, cooling, and air quality services
Call or Book Online
Reach us by phone or schedule online. We'll confirm a convenient appointment window.
Technician Dispatch
Dispatch confirms the appointment window and assigns a technician suited to the reported equipment and issue.
Diagnose & Explain
We diagnose the issue, explain findings clearly, and present repair options with upfront pricing.
Complete the Work
With your approval, we complete the repair or installation and explain any parts or follow-up timing.
Follow-Up & Warranty
We verify everything works, clean up, and provide warranty documentation for your records.
Fall Heating Season Advisory
Recent Google reviews
Long Island feedback.
Real customers.
Recent public reviews from homeowners who hired Home+ Air & Heat.
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Frequently Asked Questions
Get answers to common questions about our services