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.

On-Time. Every Time.

Minnesota’s Trusted HVAC Experts

One Hour Heating & Air Conditioning® of Ramsey

4.9

(3609 reviews)

Heating & Air Conditioning

Services By One Hour

View More Services

HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in Ramsey, MN

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 Knowledgable

4.9

(3609 reviews)

julie bloedow

2 months ago

“Erick came out on Friday to give us an estimate on new HVAC system and hot water heater. He explained all the systems and helped us decide what would fit our needs the best. Pablo and Tucker did our install on Monday. They installed our Furnace, heat exchanger, new thermostat and water heaters. Along with redoing all our venting for the furnace and water heater. Also had to call an electrician out to switch out something. They ran the test and made sure everything worked perfectly. They disassembled the old system took all that out and cleaned everything inside and out. They made sure my carpet and floors were protected. Thursday Jason came out to check on the heat exchange system. We thought it wasn’t working like it was supposed to or that we just didn’t understand the heat exchange. He checked everything out and explained everything to us again. We’re more confident about the heat exchange and he did readjust something a little. He also sold and installed an electrostatic filter. He was very polite and understanding with us. Everyone we have worked with has been friendly, polite and professional. We are so pleased with the system we purchased. Extremely happy we decided to go with Northern One Hour we had a fantastic experience from start to finish and everyone has been great! Thank you March 31 Lee and Troy cleaned our vents. We haven’t cleaned the vents in 15-20yrs they were extremely dirty! I wish I had before and after pictures. They did an awesome job! You could actually see the wood inside vents and not a specks of dust. They both were very friendly, professional and took great care of our home. Thank you all from start (sales, install, checking and explaining to us and duct cleaning)to finish for all the amazing service!”

Margaret Evans

a week ago

“Knowledgeable staff, friendly people; Gordon was so professional & thorough! This job took almost 7 hours. He continuously provided updates throughout the process so I was kept informed, leaving me highly confident in the work performed. Checked for all discounts & coupons available so he could give me the best price possible. Very satisfied with this service today! Highly recommend!!”

Tom Brown

3 months ago

“Chad Plumley visited on a Sunday and provided an estimate for a replacement furnace and ac due to our existing equipment having a heat exchanger that had failed. Chad is one of the best HVAC salespersons because he just stated the facts and gave me the impression that he was providing the best system for us and the best price available. Also, just a nice dude! Update…Jim, Alex and Gordon all worked on our furnace and water heater replacement. The guys took great care at protecting the existing flooring in our home, removed all the existing equipment safely and installed, tested and confirmed operation of the new systems. 10 out of 10!!”

Deb Lawrson

2 weeks ago

“Arrived on time. He quickly understood the nature of the problem and told me what he thought could be done. He gave me a quick estimate, and I agreed to have the work done. He ordered the parts and then left to pick them up. He returned shortly and got right to work. Turns out he was exactly right about what caused our problem. He repaired everything professionally and explained what he did and why he did it. He cleaned up so well that you couldn't tell anyone had been working there. We are very satisfied and highly recommend the company.”

Geordin Crist

a week ago

“Corey is a rare talent - super helpful, straightforward and honest, and a great teacher. I am not a mechanically inclined person, but he took the time to explain every question I had in detail, in simple terms that I could grasp. When there was an unexpected hitch in the work, he worked around my schedule to come back and get everything 100% in a fairly tight window of time. Having worked with a few contractors before and never feeling quite satisfied - or even that I could totally trust them, I was so grateful and thankful for his work. I can't recommend him enough and will be evangelizing about it to any of my neighbors and friends who need work done.”

Special Offers

Mention these discounts at time of service

View All

When you Buy a High-Efficiency Furnace

Get an AC for $2,195!

Offer does not include installation cost. Valid on 2 ton 13.4 SEER2 air conditioners when purchased in combination with a 92% or higher efficiency furnace. Discount can be applied to other select models. Some restrictions apply. See dealer for details. Rebates, credits and financing may vary by model. Valid on residential replacement only. Cannot combine with other discounts. Not valid on previous purchases. Must be in service area. Homeowner authorization required.

Expires: 2025-07-15
$49 Essential AC Tune Up

Don't Risk a Summer Heatwave Breakdown!

Coupon must be presented at the time of service. Not to be used with any other coupons, offers or specials. Residential Sales Only. Some restrictions may apply. Up to 1 lb of freon if needed. Ask for more details.

Expires: 2025-07-15
SAVE $100

ON ANY WIFI THERMOSTAT INSTALLATION

Expires: 2025-07-15

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.
SAVE $100

ON A DEHUMIDIFIER

Expires: 2025-07-15

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.
SAVE $250

ON NEW AIR EXCHANGER INSTALLATION

Expires: 2025-07-15

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.
$200 OFF

DUCT CLEANING

Expires: 2025-07-15

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.
Free Second Opinion

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.
20% OFF MILITARY & 1ST RESPONDERS

THANK YOU FOR YOUR SERVICE

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.
20% OFF Senior Citizen Discount

Seniors 60 and older. Maximum Discount $500.

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.

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, we're an independently owned and operated business with a personal investment in the 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.