We'll Be Here For You When You Need Us Most - Click Here to Learn More
Let Us Make Your Home Feel Like Home

Oceanside Heating & Cooling Experts

Always On Time...

  • ‘Round the Clock Availability

    No matter the hour, you can trust One Hour to be there to help you when you get hit with the unexpected.

  • 100% Satisfaction Guarantee

    We guarantee our materials, labor, and craftsmanship for up to two years from the date of your service.

  • StraightForward Pricing® Guide

    Before we start any work, we discuss your available options so you know exactly what you are getting and how much it will cost. No hidden fees!

  • Always On Time…Or You Don’t Pay A Dime!®

    We understand your time is valuable, so we promise to arrive at your home within the predetermined time window that you select, or your service call is free.

Get the Best Service Around

Our Happy Customers

Our Comfort Specialists are available to help, no matter the time of day. If you're in need of emergency services, we've got you covered 24/7.

  • “When I graduated [trade school], One Hour gave me the opportunity to apply what I learned at school and grow within the company. So far, I have enjoyed the industry and am excited to see where my career with One Hour takes me.”

    - Carter N. | Employee of One Hour Heating & Air Conditioning of Baton Rouge,
  • “I came to One Hour seeking stability, support, & opportunity for advancement. I received all of those things here. Having those qualities in a company separated them apart not only from an employee perspective but also from the customer point of view.”

    - Dustin W. | Employee of One Hour Heating & Air Conditioning of Baton Rouge,
  • “With the proper training from the management staff and a willingness to learn, I have received lifelong trade skill, job security, retirement options, health insurance, and ability to help customers with their HVAC needs.”

    - Cody R. | Employee of One Hour Heating & Air Conditioning of Baton Rouge,
  • “I knew while going through [internship] training this was the company I wanted to be with long term. One Hour provided me with the opportunity I needed to grow as a tech...and the opportunity to support my family with a lifelong career.”

    - Joseph Y. | Employee of One Hour Heating & Air Conditioning of Baton Rouge,
  • “One Hour allows me to utilize and grow upon all of my skill sets learned through my military service, trade schooling, and previous technical experience. This isn’t just a job to me. I can see a career and endless growth with One Hour.”

    - Gerry C. | Employee of One Hour Heating & Air Conditioning of Myrtle Beach,

Exceptional AC & Heating Company in Nassau County

Repair, Installation, and Maintenance Services That Never Take a Break

There are times when it feels like the Tundra has nothing on Nassau County, with average lows of 17 degrees Fahrenheit in winter. With temps like that, it’s vital to have an AC and heating company you trust to ensure you never have to experience the horrors of a broken water heater or an aging furnace. One Hour Heating & Air Conditioning of Nassau County is ready to tackle AC and heating repair, installation, and maintenance services for homeowners in and around Nassau County. We offer guaranteed and warrantied workmanship, competitively priced solutions, and services that don’t sleep or get tired—i.e., 24 hours a day, 7 days a week for complete convenience.

Schedule your appointment today or call (516) 862-4994 for more information about our Nassau County HVAC company.

Continue ReadingRead Less
100% Satisfaction Guaranteed

The One Hour Difference

One Hour Heating & Air Conditioning of Nassau County is your one-stop HVAC company for various comprehensive services and a commitment to putting you first. But those aren’t the only reasons customers consider us a go-to provider in Nassau County.

One Hour is a trusted name in the area because:

  • We will give you concrete appointment times. You’ll never get arbitrary appointment ranges, wondering if we’ll arrive between 3 p.m. today and 9 a.m. next month.
  • We offer 24/7 emergency services. Blizzards and heat waves don’t throw in the towel when your HVAC conks out, and neither do we. We deliver our AC and heating repair, installation, and maintenance services day and night.
  • We have extraordinary technicians. While we call our technicians “comfort specialists,” we consider them magicians because they work magic on your heating and cooling systems. And they do so with your satisfaction in mind.
Continue ReadingRead Less

Frequently Asked Questions

  • What does the One Hour mean in your company name?

    The ‘One Hour’ in our company name indicates our guarantee to be at your home in the predetermined window quoted when you set your appointment. If we do not show up within that window, your service call fee is waived.

    1. Express Appointment: This is an appointment that is scheduled during a specified one-hour time slot. You are promised that a technician will arrive at your home within this one-hour time window. You will also receive a call when the technician is en route to your home.

    2. Reserved Appointment: This is an appointment that is scheduled during a specified, two-hour time slot. You are promised that a technician will arrive at your home within this two-hour time window. You will also receive a call when the technician is en route to your home.

    3. Standard Appointment: This is an appointment that is scheduled during a specified four-hour time slot. You are promised that a technician will arrive at your home within this four-hour time window. You will also receive a call when the technician is en route to your home.

    4. Stand-By Appointment: This appointment is for overflow situations. This appointment will not have a specified time. You will receive a call when the technician is en route to your home.

    5. Emergency Appointment: This appointment is for an unspecified time after normal business hours Monday – Saturday and all day on Sundays/Holidays. Calls are dispatched in the same order they are received. You will also receive a call when the technician is en route to your home.

  • Do you service emergencies after-hours?

    Yes, we offer emergency services 24-hours a day, year-round.
  • How much will my service cost?

    The size and complexity of your HVAC issue will determine the cost. Because our trained, licensed HVAC technicians must diagnose the issue before we are able to quote you an accurate cost, we require an appointment to be set to complete a diagnostic on your system. Once the diagnostic is complete, your One Hour(R) technician will walk you through all costs using our Straightforward Pricing(R) Guide so there are never any surprise fees.
  • How often should I service my HVAC system?

    It’s ideal to service your cooling system each spring and your heating system each fall to ensure you find small issues before they become big problems.
  • How often do I need to change my HVAC filter?

    Your filter should be changed every one to three months, depending on conditions in your home and your region’s climate.
  • Do you offer purchase financing?

    We work with several lending partners to ensure our customers are able to restore comfort in their homes. Ask your technician about your financing options.
  • What are the advantages of a smart thermostat?

    Smart thermostats learn a household's patterns and adjust heating and cooling according to when a home is occupied, give homeowners the ability to control the thermostat remotely, and enable homeowners to reduce their energy use, saving you money.
  • What is a SEER Rating?

    The SEER (seasonal energy efficiency ratio) is a measure of the efficiency of your heating and cooling system.The higher the SEER rating, the more efficiently a unit operates. The SEER rating of any given unit can range anywhere from 13 to 21.

Part of the Authority Brands Family