Always On Time
Olathe HVAC Services
One Hour Heating & Air Conditioning® Serving Olathe
4.8
Looking for reliable HVAC service in Olathe? At One Hour Heating & Air Conditioning of Johnson County, we specialize in fast, friendly, and professional heating and cooling solutions for homes throughout Olathe, KS. Whether you’re near Mahaffie Stagecoach Stop, enjoying time at the Olathe Community Center, or hosting friends in Cedar Creek, we’re here to make sure your home stays comfortable in every season.
Summers in Olathe can be brutal — and if your AC isn’t keeping up, we’re just a call away. Our licensed HVAC technicians diagnose and repair air conditioning systems quickly, getting you back to cool comfort. We work on all makes and models and offer same-day service for urgent cooling needs.
Blackbob Park area, Cedar Creek, Prairie Highlands, Forest View, Falcon Ridge and more.
When the temperatures drop in Johnson County, don’t get stuck in the cold. Our Olathe furnace repair experts provide fast, effective heating service — from routine maintenance to emergency repairs. Need a new system? We install high-efficiency furnaces to help you save on energy bills while staying warm all winter long.
Is it time to replace your outdated HVAC system? We offer expert installation of new heating and cooling systems tailored to your home’s layout, square footage, and energy efficiency goals. Our team walks you through your options, from traditional furnaces and central AC to heat pumps and ductless systems.
Ask about:
✅ On-time guarantee — or you don’t pay a dime
✅ Licensed, background-checked HVAC professionals
✅ 24/7 emergency service available
✅ Flexible financing & membership discounts
✅ Backed by a national brand with local ownership
We’re proud to serve Olathe and the greater Johnson County area with dependable, customer-first HVAC service.
Costs vary depending on the issue, but we always provide upfront pricing before any work begins.
Yes — we offer 24/7 emergency service for urgent HVAC problems in Olathe and surrounding communities.
Absolutely! We offer financing options with approved credit to help make your new system affordable.
Our seasonal tune-ups include a full inspection, cleaning, safety check, and efficiency testing to catch problems early and extend your system’s lifespan.
Call (913) 733-3455 or Book Online to schedule your appointment with One Hour Heating & Air Conditioning. Whether it’s AC repair, furnace maintenance, or a full HVAC install, we’ve got Olathe homeowners covered — with fast, friendly service you can count on.
Learn more about our Johnson County-based HVAC experts.
Book NowYes, I’m very pleased with the service I received. They were very knowledgeable and very fast and I’m satisfied with the work. They did a tray in his partner. Did an awesome job. I would recommend him highly. Elena Carpenter
Tim is a great technician knowledgeable, and very pleasant to work with
Courteous, clean and professional. Ricardo was too notch! Recommended!
Paul Maggenti arrived on time, was neat, thorough and very pleased with his work. He is the best!
Noah was great. He thoroughly evaluated everything, made some suggestions for improvement and answered our questions. He was neat and courteous. We’ve been with One-Hour for years and have always been quite satisfied with their work.
Maurice and Michael did a great job. They were very considerate of our home and our crazy dog.
Professional and knowledgeable! Answered all questions.
They were professional, responsive, and truly cared about getting the job done right. The price was very reasonable compared to other HVAC companies in the area. Highly recommend.
Very friendly and professional.
Alex and his team did a great job in responding and working quickly! They were very professional and transparent throughout the whole process.
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