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Let Us Make Your Home Feel Like Home

Mount Kisco 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.

  • “Great technicians Timely & Knowledgeable Highly recommended”

    - M E Neivert | Peekskill, NY

Mount Kisco AC & Heating Services

HVAC Repair, Installation & Maintenance in Westchester County, NY

One Hour Heating & Air Conditioning® of Westchester NY is Mount Kisco's trusted source for HVAC services. We’re proud our team has some of the highest-trained AC, heater, and furnace experts in the area. However, it’s not just our ability to quickly install and repair HVAC systems that makes our customers love us. Our team does great heating and AC repairs while providing unprecedented customer service.

We know there's several Westchester HVAC contractors to choose from, but we always lead with our 100% satisfaction guarantee! We’re ready to help you in Scarsdale, Rye, New Rochelle, Larchmont, Peekskill, Mount Kisco, White Plains, other areas in Westchester County and beyond. Whether you’ve experienced a late-night HVAC emergency or need routine maintenance. Our team loves showing you what we can do regarding cooling and heating service in Westchester!

We're one of the most trusted HVAC contractors in Westchester, NY! Call us at (917) 979-6147 to schedule your service.

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100% Satisfaction Guaranteed

Special Offers

  • One Hour Heating & Air Conditioning® of Westchester NY Free Travel Fee Travel Fee Waived with any Completed Repair One Hour Heating & Air Conditioning® of Westchester NY Print
  • One Hour Heating & Air Conditioning® of Westchester NY Big Savings Qualify for NYSERDA Energy Rebates Directly with One Hour Westchester NY One Hour Heating & Air Conditioning® of Westchester NY Print

Trusted Mount Kisco HVAC Repair Services

Despite carrying the name of a national brand, we’re an independently owned and operated business. We treat our customers as if they are our neighbors because they are our neighbors! We proudly serve Scarsdale, Rye, New Rochelle, Larchmont, Peekskill, Mount Kisco, White Plains, other areas in Westchester County! Don’t just accept our promise to provide great service—trust our guarantees.

We guarantee three important things: we’ll be on time for your appointment, you’ll be 100% satisfied with our work, and we’ll be upfront about the pricing of our services. If we fail in any of these areas, we’ll make it right. We’ll even pay you back for each minute that we’re late! Call our Westchester County HVAC technicians today to find out more about our guarantees and services—you’ll be glad you did.

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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.

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