Featured

One Hour Heating & Air Conditioning

HVAC Companies in Olathe, Kansas
Ranked #7 in Olathe | Grade B
4.90 (3,591 reviews)

One Hour Heating & Air Conditioning

Local HVAC company serving Olathe, Kansas and surrounding communities with diagnostics, repairs, maintenance, and installations for residential heating and cooling systems.

Why Homeowners Choose This Business

Clear communication during visits, options explained before work proceeds, and service windows that fit most schedules. The local team supports both urgent fixes and planned upgrades Local experience that helps homeowners across Olathe, Kansas compare a more region-aware provider.

Service Area

Olathe and greater Johnson County; nearby Kansas City metro suburbs by appointment.

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  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Has more Google review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  HVAC repair
  Maintenance
  Furnace Repair
  Installations
  AC Repair
  Repairs
  HVAC Maintenance
  Air Conditioner Installation
  Furnace Installation
  Thermostat Replacement
  Heating Service
  Cooling Service
  HVAC tune-up
  Indoor comfort

Heating and cooling system diagnostics and repair, seasonal tune-ups and maintenance, thermostat replacement and settings help, indoor comfort troubleshooting, and full-system replacement and installation.


Reviews

Recent Reviews

4.90

(Based on 3,591 reviews)

Customer feedback highlights professional, friendly technicians who explain findings, present options, and follow up after visits. Many note timely repairs and smooth installation experiences, with some mentioning extra steps taken to maintain comfort during outages. A small number of reviews raise concerns about warranty expectations and associated visit fees. Overall ratings trend very positive for responsiveness, clarity, and workmanship.

Javier was amazing! He was very professional, personal and passionate about what he was doing. He not only fixed our problem the same day, but he made our furnace run at a more efficient and effective way and the way it was designed to. He switched the heat to come out into two stages instead of just the one that it had been set at for years. Javier even took the time to explain everything he was doing during the process. Thank you so much Javier and well done!

I had a great experience with One Hour Heating & Air Conditioning! Sam was professional, knowledgeable, and very friendly. He truly cared about my concerns and addressed any questions I had. The day of my install he followed up with me to make sure his install guys arrived on time and wanted to make sure he had the correct names on the warranty paperwork. He also had dropped off space heaters for the days that I was without heat! Nothing but praise worthy things to say about Sam!

Logan and Kirby did a fantastic job installing my furnance and air conditioner! They were professional and left behind no messes. Logan showed me had to work my brand new fancy thermostat which I really appreciated. Logan also replaced one of my old breakers free of charge. During the install the Install Manager stop by to make sure everything was going good and on-time which again just proved to me I made the right choice by choosing One Hour Heating and Cooling!

I highly recommend One Hour Heating and Cooling! I will be using them for all my future heating and cooling needs!

We've been using One Hour Heating & Air Conditioning for 15+ years now and have always been impressed with their service. Their staff is always very professional, down-to-earth, and friendly. Explaining what they're doing, why they're doing it, and can walk you through any potential issues, providing their personal opinion, and a variety of options on how to move forward if a problem does exist.

In this particular instance, we had a few failing parts on one of our furnaces. Both were expensive to replace, and we were told that other components may fail in the near future as the furnace was 15+ years old. They offered the option of replacing the entire unit rather than just replacing the two parts, which was only a bit more expensive and seemed like the right move, considering the new unit would be under warranty.

In addition to that, we found that our chimney liner (which is where the exhaust runs through, then out of the house) had become disconnected and that the exhaust was just leaking into the brick chimney and not exiting the house properly. They told me that they might have to install a new liner, which was an additional cost, but that the previous one looked good in their opinion, and they thought they might be able to reattach. I thought for sure this would be an added cost, but they were able to utilize the existing one, and did not charge me for parts and labor of installing a new one. I believe a less trustworthy company might have installed a new one anyway in able to charge more and increase their margin.

I truly feel like they have our best interests in mind, as I've always found them to be trustworthy, as they are never trying to oversell or overcharge, in my opinion.

Kirby Alaimo and the rest of the crew that did the install were incredibly friendly and helpful!

I would recommend this company/service to anyone! Very happy with their continued service.

-B

We recently purchased a home with a One Hour Heating & Cooling installed (2022) furnace and A/C with a 10 year parts and labor warranty. We are having issues with the heating. We called and had several emails with their service manager. They said they would be more than happy to come look at it, for $100. When I asked about the 10 years parts and labor warranty , they said it’s not covered. In other words, they do not honor their warranty so don’t buy one!

One Hour has serviced our HVAC system for a number of years and our experience with the company has been excellent. Each of the many technicians has been professional, knowledgable, respectful, and always clearly explains everything thoroughly. We also recently had our old HVAC system replaced by One Hour and can’t say enough of how well it went. Tristen was superb and walked us through various options, asking good questions to help justify our decisions on the right components for our needs, and without any pressure. Kirby led the team on the installation. He was fantastic, kept us well informed of everything from beginning to end, and made sure to engage us on any decisions or questions. The new system works great and even has a few extra features that make it easy to use and ensures our comfort all day, every day. We couldn’t be more pleased with the end result!

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Special Offers

Same-Day Service

Same-day service may be available for certain jobs.

Emergency Service

Emergency service may be available for urgent issues.


Frequently Asked Questions

The team handles heating and cooling repairs, seasonal maintenance, and complete system replacements. They also assist with thermostat issues and comfort troubleshooting in homes.

Scheduling is typically available seven days a week with extended hours. Availability can vary by day and season, so calling or checking the website is recommended for current openings.

Reviews frequently mention clear communication about what was found and available options. Technicians discuss next steps before work proceeds so homeowners can make informed decisions.

Yes, technicians can review system condition and outline repair paths versus replacement options. They typically discuss efficiency, reliability, and budget considerations to guide the choice.

Service commonly extends across Johnson County and nearby parts of the KC metro. Confirm your address when booking to ensure coverage and scheduling times.
 Verified Listing

Opening Hours


  • Monday 6:00 AM – 10:00 PM
  • Tuesday 6:00 AM – 10:00 PM
  • Wednesday 6:00 AM – 10:00 PM
  • Thursday 6:00 AM – 10:00 PM
  • Friday 6:00 AM – 10:00 PM
  • Saturday 6:00 AM – 10:00 PM
  • Sunday 6:00 AM – 10:00 PM

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Business Details


Business Rating
4.90 (3,591 reviews) Featured BusinessPro Listing
Address
1804 E 123rd St, Olathe, KS 66061
Phone
Business Type
HVAC Contractor

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