Call Now
Website
Call
Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in Lebanon, MO
Henderson Heating & Cooling has been serving Lebanon and surrounding areas since 1958, establishing itself as Southwest Missouri's most reliable HVAC company. As a family-owned business acquired by Terry and Louanne Mizer in 1986 and now led by Brad Mizer, we combine decades of experience with continuous technical training to deliver cutting-edge HVAC solutions. Our Trane Comfort Specialist designation reflects our commitment to industry-leading installation standards and customer satisfaction.

We maintain a team of certified technicians to ensure prompt emergency response and first-time-right service, backed by 12-year warranties on select systems. Our preventive maintenance agreements help homeowners and businesses maximize system efficiency while receiving priority service during critical periods.
Services
AC Repair AC Installation Furnace Replacement Ductless Systems Air Duct Cleaning Indoor Air Quality Maintenance Plans Heat Pump Installation Emergency Service HVAC Inspections
Details
  • Year established: 1958
Highlights and features
  • Family-owned HVAC expertise serving Southwest Missouri since 1958
  • Trained technicians with ongoing manufacturer-certified education programs
  • 12-year warranties on select HVAC system components
  • 24/7 emergency service with prompt response guarantees
  • Customized preventive maintenance plans with priority scheduling
Associations and certifications
  • Trane Comfort Specialist
What people say
Outstanding service Prompt and fast Knowledgeable technicians Very reasonable prices Complete professionalism
Services
AC Repair
Our certified technicians provide prompt air conditioning repair services for residential and commercial properties. We diagnose and fix cooling system issues including refrigerant leaks, compressor failures, and thermostat malfunctions. Emergency repair availability ensures minimal downtime during peak summer months.
Furnace Replacement
Professional furnace replacement services featuring high-efficiency models with up to 98% AFUE ratings. We handle complete system removal, new unit installation, and ductwork optimization. Financing options available for qualifying customers with 12-year parts warranties included.
Ductless Systems
Energy-efficient ductless HVAC solutions for homes and businesses without existing ductwork. Our specialists install multi-zone systems with individual temperature control for maximum comfort. Includes wall-mounted, ceiling cassette, and floor-standing unit options with smart thermostat integration.
Indoor Air Quality
Comprehensive indoor air quality solutions including HEPA filtration systems, UV air purifiers, and humidity control. We install and service equipment that removes allergens, bacteria, and pollutants from residential and commercial environments. Custom solutions for asthma and allergy sufferers.
Maintenance Plans
Preventive maintenance programs featuring twice-yearly system inspections and tune-ups. Plans include priority service scheduling, discounted repairs, and extended equipment lifespan benefits. Covers both heating and cooling systems with customizable coverage options for residential and commercial clients.
People
Brad Mizer
Owner
Third-generation HVAC leader with 20+ years of industry experience. Oversees daily operations and technical training programs. Maintains active involvement in customer service and business development.
Questions
What HVAC services do you offer in Lebanon, MO?
We provide full-service HVAC solutions including AC repair, furnace replacement, ductless systems, indoor air quality improvements, and preventive maintenance plans for residential and commercial clients.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service with priority scheduling for urgent heating and cooling needs. Technicians respond promptly to critical system failures.
What financing options are available?
We offer flexible financing plans through approved lenders for qualifying customers. Options include low-interest rates and extended payment terms for major HVAC replacements.
Are you Trane Comfort Specialists?
Yes, we maintain Trane Comfort Specialist status through ongoing training and meet their highest standards for product knowledge and customer satisfaction.
What areas do you service?
We serve Lebanon and surrounding communities including Phillipsburg, Conway, Marshfield, Camdenton, and all areas within 30 miles of our Lebanon location.
Do you provide maintenance agreements?
Yes, our preventive maintenance plans include bi-annual system inspections, priority service scheduling, and discounted repair pricing for both residential and commercial clients.
Reviews (5)
Amy Pack Thompson
Apr 03, 2021 Report
After surviving the arctic cold of this winter, my antique furnace finally said "I'm done". As sad as I was to say goodbye, Henderson was there to save me. Jack and his team were fabulous, professional, quick and amazing. They got my entire new system replaced and going in record time. Will never call anyone else and recommend them 100%.
Sheila Bourgeau
Mar 25, 2021 Report
Positive:Professionalism,Quality,Responsiveness,Value
Thank you Henderson heating and cooling great job and fast response
Service:Repair HVAC
Amanda Mcvay
Feb 03, 2021 Report
The man that came to talk to me about my heat pump was very polite and informative. However, it was a talk. He did not look at my unit at all. I was sent a bill for 70 dollars for a man giving me information that could have been told to me over the phone. When I called to inquire about the bill, I was shocked at the way I was treated. The woman was rude, talked down to me, and basically acted like I was lying that absolutely nothing was done as far as inspecting my heat pump. If I could give zero stars I would. This company cares about the dollar, not the customer.
Bonnie Arnold
Dec 22, 2020 Report
They are absolutely knowledgeable of what they are doing. They are always very Friendly when you call and respond quickly. You will never go wrong if you call them. They are the best I have ever dealt with. Prices are very very reasonable.
Harvey Porterfield
Oct 15, 2020 Report
Awesome service...Profesional and polite. Came out on a holiday. Got everything up and running. Replacing whole system soon and will definitely call on Henderson...Thanks Guys!!!