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KirbnJays Heating & Cooling

HVAC Companies in O'Fallon, Missouri
Ranked #7 in O'Fallon | Grade B-
4.90 (361 reviews)

KirbnJays Heating & Cooling

KirbnJays Heating & Cooling provides repair, replacement, and maintenance for HVAC systems and water heaters in the O'Fallon, Missouri area. The team emphasizes responsive scheduling, straightforward communication, and neat, careful work.

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Why Homeowners Choose This Business

Clear communication, flexible scheduling, and workmanship focused on reliable operation. Technicians explain findings and options so you can make informed decisions. Upfront pricing and tidy job sites help keep projects straightforward Local experience that helps homeowners across O'Fallon, Missouri compare a more region-aware provider.

Service Area

Serving O'Fallon, Missouri and nearby St. Charles County communities.

Local Pro Business

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Listing details

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  • Verified listing details
  • 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.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Emergency Service - 24/7 availability shown on business listing; call to confirm current response times.

Services Covered

  Renovation Services
  Furnace Repair
  AC Repair
  Installations
  HVAC installation
  Repairs
  Heat Pump Service
  Hvac Maintenance
  Thermostat Installation
  Air conditioning replacement
  Furnace Replacement
  Water heater service
  Ductless Mini-Split
  Emergency HVAC
  Indoor air quality check

Heating and AC repair, system replacement, seasonal tune-ups, thermostat install, indoor air troubleshooting, and water heater service.

Reviews

Customer Reviews

Craig Miller
Mark D. our service technician, was very cordial, and he explained our required repairs in layman's terms that we could fully understand. The savings provided by Kirb n Jay's Heating and Cooling is considerable to what we had originally exp…
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Mark D. our service technician, was very cordial, and he explained our required repairs in layman's terms that we could fully understand. The savings provided by Kirb n Jay's Heating and Cooling is considerable to what we had originally expected. We'd highly recommend these guys to anyone, every time!!
Rick Carr
Seth and Mike did an awesome job with my new water heater. Works beautifully. Seth came back and unclogged kitchen faucet. I will call them for all services
Julie Powers
After a very stressful no-heat situation in the middle of winter, this company absolutely restored my faith in good people and good service. I wish I could give Jason and team 100 stars! Truly! There are not very many companies like this an…
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After a very stressful no-heat situation in the middle of winter, this company absolutely restored my faith in good people and good service. I wish I could give Jason and team 100 stars! Truly! There are not very many companies like this anymore.

I had been left in a difficult position after another company assessed the issue and was unable to move forward in a timely way, leaving us facing multiple nights without heat. I reached out to KirbnJays Friday night around 9 PM, and by 9 AM Saturday, the owner and a technician were at my home. By 11 AM, we had heat!!

They confirmed the issue, clearly explained what was happening in a way I could understand, and then went above and beyond to actually fix it, including tracking down a part from their distributor across town, so the repair could be completed the same day.
What stood out most was the communication and care. They took time to walk me through the problem, the solution, and what to expect going forward. I never felt rushed, pressured, or talked down to. Just genuinely supported.

As a parent dealing with a freezing house, that level of responsiveness and professionalism meant everything. This wasn’t just a repair. It was people showing up when it mattered. From the bottom of my heart, THANK YOU KIRBNJAY TEAM!!!
Tracy Smith
Mark and the Team at KirbnJays are rock solid. They have worked on my heating and a/c three times this season and consistently demonstrated unwavering professionalism and expertise. From routine maintenance to emergency calls, they are alwa…
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Mark and the Team at KirbnJays are rock solid. They have worked on my heating and a/c three times this season and consistently demonstrated unwavering professionalism and expertise. From routine maintenance to emergency calls, they are always prompt, honest, and incredibly efficient. I wouldn't trust anyone else with my HVAC needs—they truly set the standard for quality service. Highly recommend!
Mary Ann Miller
What a trustworthy company. Prompt, knowledgeable, and a very resonable price. 1 day to install A/C & furnace. They all worked very hard . Cleaned up everything, I can't tell they were here, except I have HEAT ?? NOW which reminds me of…
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What a trustworthy company. Prompt, knowledgeable, and a very resonable price. 1 day to install A/C & furnace. They all worked very hard . Cleaned up everything, I can't tell they were here, except I have HEAT ?? NOW which reminds me of how appreciated I am for them. I HIGHLY RECOMMEND THIS COMPANY.

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Special Offers

Emergency Service

Emergency service may be available for urgent issues.

Frequently Asked Questions

They service and replace furnaces, air conditioners, and heat pumps, and also work on water heaters. Appointments are available for diagnostics, repairs, and routine tune-ups.

Their listing shows availability 24 hours a day. Call the main number to check current response times and schedule.

Yes, estimates are discussed before proceeding so you know the expected scope and cost. If additional issues are found, the technician will review options with you first.

They handle full system change-outs and replacements. Technicians can assess your current setup and provide options that fit the home and budget.

Seasonal tune-ups help keep systems efficient and reduce breakdowns. Filter changes and basic checks between visits also support good performance.
 Verified Listing

Opening Hours

  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

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Business Details

Business Rating
4.90 (361 reviews) Pro Listing
Address
674 Whispering Willow Dr, O'Fallon, MO 63366
Business Type
HVAC Contractor
Website
https://www.kirbnjayshvac.com/
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