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.

Bringing Comfort Home

With Expert AC Services

One Hour Heating & Air Conditioning® of Southern Maine

(50 reviews)

Heating & Air Conditioning

Services By One Hour

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Stay Cool with AC Repair in Southern Maine, ME

100% Satisfaction Guaranteed

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

At One Hour Heating & Air Conditioning® of Southern Maine, 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 Knowledgable

(50 reviews)

Dave Binder

4 months ago

“Although the job took a bit longer to do than was first estimated, the crew of Mike, Jake and Ed ( also Scott and Erik the owner) continued with the project and made sure everything was right and buttoned up before they considered the job complete. I had a sizable install including a three head Bosch system on the first floor and a complete attic distribution system with a second Bosch outside Heat Pump as well. They always left the place clean each day and worked diligently to make sure I was satisfied. I've been using the heat pumps this Winter to supplement my oil system and am looking forward to having AC in my house for next season. Thanks for your hard work and good attitude and for a clean installation as well. I'll be calling you for service when it's needed”

Anthony Ianniello

a week ago

“This was our first experience with One Hour Heating & AC. From our call with Craig to the two technicians who helped us out it was an excellent experience. I apologize that I didn't get the technicians names, but they were great -- nice, personable and knowledgeable. We will definitely be using One Hour Heating & Air again in the future.”

Donna Carlson

a month ago

“Jacob and his assistant were very professional and helpful. They were able to resolve our heat problem. Definitely will use there service for the future. I highly recommend them.”

Toby Gordon

a month ago

“The two technicians were very nice, efficient, and got the job done--cleaning out our dryer vent--with no problems. I would definitely recommend this company and will use them again in the future.”

Julie Libby

5 months ago

“I appreciate the quick response. Came to my house the day I called for help. They diagnosed the problem and found the furnace needed to be replaced. They put the order in for a new one. While waiting for the furnace I had no heat. They left me a heater to help keep my house warm. Don, Jake & Mike even stayed late Christmas eve to make sure I had heat. No second thoughts, they just stayed until they got the job done. Don, Jake & Mike were hard workers, no goofing around. Very professional. They left the site very clean. The owner Scott did a great job working with me about what I needed and the cost. I am very satisfied with this company and would get them again.”

Special Offers

Mention these discounts at time of service

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Get 3 Months of Comfort Club Free when you sign up for a year!

Sign up for Comfort Club at $19.99 and get the following: 15% off all services, Priority Service, 2 free filter changes ($100 value), Free Fall and Spring System safety appointments ($350 value), complimentary thermostat programming, emergency response

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.

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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, we're an independently owned and operated business with a personal investment in the local community. We back our work with a 100% satisfaction guarantee, provide StraightForwardPricing® 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 Southern Maine Team

Edwin L.

Master Technician

With over 25 years of experience in heating, plumbing, and HVAC, Ed brings the knowledge and skills to lead our team and handle any problem with your HVAC needs.
Jacob L.

Lead Technician
Michael E.

Lead Technician