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Business Details
41 Years
experience
Expert HVAC Services in Olathe, Kansas
McCormack Heating & Cooling has been a trusted provider of heating, ventilation, and air conditioning services in Johnson County since 1985. Our team of certified technicians brings a minimum of 15 years of field experience to every project, ensuring expert diagnosis and repair of all HVAC systems. We specialize in residential and commercial installations, replacements, and preventative maintenance agreements, serving communities across Johnson County with prompt, reliable service. Our commitment to quality extends to partnerships with leading brands like Lennox, Rheem, and Aprilaire, offering energy-efficient solutions tailored to individual comfort needs. We prioritize customer education to help clients make informed decisions about their indoor climate systems.

With over 30 years of local operation, we maintain a strong focus on building long-term relationships through transparent communication and workmanship guarantees. Our technicians service all makes and models, ensuring compatibility with existing systems while providing modern upgrade options. The company's dedication to excellence is reflected in our KCP&L Cool Homes certification and membership in the ACCA. We offer free in-home consultations to optimize system performance and budget alignment. Our 17-year customer retention demonstrates the trust earned through consistent delivery of professional, courteous service.
Services
Air Conditioning Repairs Heating Installation Water Heater Replacement Commercial HVAC Service Preventative Maintenance Humidifier Installation System Replacement Emergency Repairs Energy Efficiency Upgrades Thermostat Installation
Details
  • Year established: 1985
Highlights and features
  • 30+ years serving Johnson County with proven HVAC expertise
  • Technicians with minimum 15 years field experience
  • Locally owned with personalized customer service
  • Free in-home consultations for system optimization
  • Service all makes and models with workmanship guarantees
Associations and certifications
  • KCP&L Cool Homes Certified Technician
  • Contractor Licensing JOCO
  • Go Green JOCO Environmental
  • ACCA
What people say
Very hard working Wonderful job Courteous, Fast + Clean On time Professional installation
Services
Air Conditioning Repairs
Our certified technicians provide prompt diagnosis and repair of all air conditioning systems. We service both contemporary and traditional homes, ensuring optimal cooling performance. With experience in all makes and models, we offer same-day repairs for emergency situations.
Heating Installation
We specialize in energy-efficient heating system installations. Our team handles complete system replacements with modern, high-efficiency units. We work with leading brands to ensure reliable performance and improved indoor comfort for residential and commercial properties.
Water Heater Replacement
We offer State brand water heater replacements with professional installation. Our technicians address hard water issues common in Johnson County. We provide tank and tankless options with competitive pricing and warranty coverage for residential customers.
Commercial HVAC Service
Our team provides comprehensive HVAC solutions for commercial properties. Services include system maintenance, equipment replacement, and emergency repairs. We offer customized maintenance agreements to ensure business continuity and energy efficiency for commercial clients.
Preventative Maintenance
We offer scheduled maintenance programs to extend equipment lifespan and improve efficiency. Our technicians perform thorough inspections and tune-ups for both residential and commercial systems. These programs help prevent unexpected breakdowns and maintain manufacturer warranties.
Questions
Do you service both residential and commercial HVAC systems?
Yes, we provide heating and cooling services for both residential and commercial properties in Johnson County.
What brands of HVAC equipment do you work with?
Our technicians service all makes and models, including Lennox, Rheem, American Standard, and State Water Heaters.
Are financing options available for HVAC replacements?
Yes, we offer easy HVAC financing through Synchrony Financial for qualifying customers.
Do you offer emergency HVAC repair services?
We provide prompt repair services during regular business hours but don't offer after-hours emergency service.
What areas do you service?
We serve all Johnson County communities including Overland Park, Olathe, Lenexa, Shawnee, and surrounding areas.
How can I schedule HVAC maintenance?
Call us at 913-888-8322 during business hours to schedule maintenance or request a free in-home consultation.
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Reviews (5)
Herb Fiddick
Jul 26, 2021 Report
I can't say enough good things about this company and their staff. We have used them several times through the years and they have always been professional, competent, and attentive to our needs. They always explain what they are doing and are very thorough. Unlike others, they don't try to upsell you things you don't need and are honest to a fault. I highly recommend them.
James Friley
May 18, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
These guys are awesome and well recommended. Scott took care of me and helped explain things to make sure I knew what was going on along the way. Called at 9 am and was out here within 2 hours and had the AC back up and running very quickly.
Service:AC repair
Bill Cunningham
Aug 09, 2020 Report
Our family wanted an Olathe HVAC Company to service our furnace m. We were very happy with their services and highly recommend them to Olathe residents.
Richard Jett
Oct 08, 2019 Report
They came to our place the morning after
we contacted them and were there by 8:00 AM. By early afternoon, we had a new A/C
Unit. They sent to us two excellent technicians who gave us fantastic service. We have used McCormack before. They
are tops in our book
James Porter
Jun 02, 2019 Report
We have used them for 25 years. Great technicians, just bought a new HVAC system. Very competitive pricing