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 built relationships with several lenders 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.

HVAC means Heating, Ventilation, and Air Conditioning. HVAC systems refer to air conditioners, furnaces, and any unit that cools indoor spaces during the summer and warm them in the winter. In general, an HVAC system takes in air, heats or cools that air, and blows it into a room or any indoor space. While many homes have separate air conditioning and heating units, others have a heat pump that cools and heats the house. Not only do HVAC systems maintain desired temperatures, but they also improve indoor air quality and regulate humidity levels. But most importantly, these units provide comfort all year round.

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.

Let Us Make Your Home

Feel Like Home

One Hour Heating & Air Conditioning® of Southeast Pennsylvania

4.8

(3769 reviews)

Heating & Air Conditioning

Services By One Hour

View More Services

HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Southeast Pennsylvania, PA

When homeowners want a reliable heating or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the United States for a simple reason: we actually care about your comfort.

At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.

We Have a Reputation

For Being Punctual, Friendly and Knowledgeable

4.8

(3769 reviews)

Susan Miller

07-11-2025

“What a wonderful technician and employee...he explained everything in a way we understood the issues...I will only have him from now on!”

Mike Crowley

07-10-2025

“Wanted a local York, PA Heating and AC company but stumbled on this national franchise in Lancaster, PA. There were some issues in part with myself and this company. They were mostly rectified. Mark the first tech that came out was just simply awesome and I have to mention his most excellent service. The issue arose with the second tech who did the duct work where it got a bit dicey and I will stop there. In conclusion, I think the work was done adequately but in the long run a good local company would have done it just as well and at a more equitable price.”

sary mota

07-09-2025

“estoy muy encantada con el trabajo, puntual, responsables limpios, amables y a mi comunidad latina. Se los recomiendo a veces nosotros los latinos nos da miedo contratar compañías por el idiomas, pero se la recomiendo 100% I am very happy with the work. It's punctual, responsible, clean, and friendly, and I highly recommend it to my Latino community. Sometimes we Latinos are afraid to hire companies because of the language barrier, but I highly recommend it.”

Cindy Tangert

07-08-2025

“EXCELLENT”

Brian Klimes

07-08-2025

“Don did a great job diagnosing the problem with the air conditioning. He was thorough and took care of everything,to order some replacement parts and then returned and installed them.”

Helen Bennett

07-07-2025

“Jacob was friendly and professional.”

John Lindholm

07-07-2025

“Great, honest, comprehensive service. Very pleased”

Shawn Huntzinger

07-07-2025

“Very friendly and helpful Appreciate straight forward evaluation”

Bruce Bailey

07-07-2025

“Excellent service from Mark. THANK YOU”

Mark Pleger

07-07-2025

“Jason was very knowledgeable and explained everything step by step. Would definitely recommend one hour to everyone”

Special Offers

Mention these discounts at time of service

View All

$250 OFF

Any Heating or Air Conditioning Installation

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
10% Off

Any Service for Veterans, Active Military, Active First Responders

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.

View All

HVAC Services You Can Count On

Our customers love what we do because we treat them like the neighbors they are to us. While we carry the One Hour name, were an independently owned and operated business with a personal investment in the local community. We back our work with a 100% satisfaction guarantee, provide StraightForward® pricing guides for your benefit, and will pay you back for being even one minute late to an appointment.

Here For You

When You Need Us Most!

Yellow One Hour Heating & Air Conditioning service van with company branding and slogan.

'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.

0% Financing Available

Prioritize your comfort without fronting the entire bill on day 1 – contact us today to learn more about financing options.

Discover Your Options

Meet the Southeast Pennsylvania Team

Ryan Veilleux

Operations Manager

My name is Ryan and I serve as an Operations Manager for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
James Frese

HVAC Service Technician

My name is James and I serve as a HVAC Service Technician for One Hour Heating and AC. I’ve been in the HVAC business since 2015. I enjoy hunting, being outdoors, and spending time with family in my free time. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Dave Landis

HVAC Service Technician

My name is Dave and I serve as a HVAC Field Supervisor for One Hour Heating and AC. I’ve been with the company since 2014. I’m a proud father and husband and enjoy spending time with them in my free time. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Jason Fox

HVAC Service Technician

My name is Jason and I serve as a HVAC Service Technician for One Hour Heating and AC. I’ve been in the HVAC business since 1997. I’m a proud father of 3 kids and enjoying spending time with them and my wife in my free time. I’ve been a baseball coach for 13 years. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Troy Gadberry

HVAC Service Technician

My name is Troy and I serve as a HVAC Service Technician for One Hour Heating and AC. I enjoy spending time with family and friends in my free time. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Jacob Reinert

HVAC Service Technician

My name is Jacob and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Sean Whitworth

HVAC Service Technician

My name is Sean and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Bailey Foreman

HVAC Service Technician

My name is Bailey and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
John Labar

HVAC Service Technician

My name is John and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. I look forward to meeting with you today!
Johnny Rivera

HVAC Service Technician

My name is Johnny and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. I look forward to meeting with you today!
Jordan McMullen

HVAC Service Technician

My name isÂ JordanÂ and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. I look forward to meeting with you today!
Mark Landis

HVAC Service Technician

My name is Mark and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. I look forward to meeting with you today!
Ryan Watson

HVAC Service Technician

My name is Ryan and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Ian Pammer

HVAC Install Manager

My name is Ian and I serve as the HVAC Install Assistant Manager for One Hour Heating and AC. I’ve been in the HVAC business for over 10 years. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Joe Moore

HVAC Install Assistant Manager

My name is Joe and I serve as a HVAC Service Technician for One Hour Heating and AC. I’ve been in the HVAC business since 2013. I enjoy watching sports and being with friends in my free time. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Jonathan Nauman

HVAC Lead Installer

My name is Jonathan and I serve as a HVAC Lead Install Technician for One Hour Heating and AC. I’ve been with the company since 2015. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Coy Heaps

HVAC Lead Installer

My name is Coy and I serve as an HVAC Lead Install Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Zane Reed

HVAC Lead Installer

My name is Zane and I serve as a HVAC Service Installer for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Josh Kinderwater

HVAC Lead Installer

My name is Josh and I serve as a HVAC Service Installer for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Nathan Jeffers

HVAC Field Trainer

My name is Nathan and I serve as a HVAC Service Technician for One Hour Heating and AC. I’ve been in the HVAC business since 2008. I’m a proud father and husband and enjoy spending time with family in my free time. I am more than confident that I can take care of any HVAC concerns for you. Thank you for choosing One Hour!
Harris Englehart

Lead Duct Cleaning Technician

My name is HarrisÂ and I serve as a HVAC Service Technician for One Hour Heating and AC. I am more than confident that I can take care of any HVAC concerns for you. I look forward to meeting with you today!