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Voted best of Omaha for the 9th straight year!

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General Info

Since 1975, A-1 United Heating & Air has been serving the needs of people throughout Omaha. When you need a comfortable home, turn to us. We provide sales, service and maintenance for Lennox products. We also have a sheet metal shop for fabrication work. Our great services include Commercial cooling and heating, Residential new construction and Residential replacement find out how we can get you rebates and tax credits on your purchase with us. Also, check our web site for a current promotion. Call today, and live comfortably indoors.

The A-1 United Commercial Department provides our customers with everything they need to complete any job from start to finish. Whether youre planning a remodel or new construction, the professionals in our commercial department can handle it with over 30 years of combined experience in commercial estimating and installation. Our goal is to help make your project a successful, profitable, and painless both in the planning and in the field.  We now offer Equipment Leasing for your commercial needs

A-1 United Heating and Air Conditioning offers a wide variety of services for all of your comfort needs. We offer Lennox heating and air conditioning equipment in all grades of efficiency and for all sizes of homes, and now offer Bryant heating and air conditioning equipment in all grades of efficiency. All installations include a follow-up service check, free of charge, after the equipment is completely installed to ensure that your system is operating at peak efficiency and installed according to all factory specifications.

Our estimators can analyze your indoor comfort needs and assist with the finest Lennox furnaces, air conditioners, heat pumps, GEO Thermal equipment, Aprilaire automatic humidifiers, Lennox Pureair systems, High efficiency  filters, Lennox and Honeywell control systems and now Solar for your home. Our IAQ equipment can filter out pollens, particulates and odors, making your home allergy-free which benefit a multitude of health conditions. Call today for a free estimate.

BBB Rating
BBB Rating and Accreditation information may be delayed up to a week.
BBB Accredited businesses follow the BBB Code of Business Practices and pay a fee for accreditation review and monitoring. Accreditation is not a BBB endorsement or evaluation of the business’ product quality or competency in performing services.

BBB Rating and Accreditation information may be delayed up to a week.
Regular Hours
Mon - Fri:
Extra Phones

Phone: (402) 291-1091

Products/Services: * Accredited * Bank Checks * Certified * Commercial * Furnaces * Gas * Geothermal * Green Building * Humidification * Industrial * Installation * Locally Owned * Maintenance * New Construction * References Available * Remodeling * Repair * Residential * Senior Discount * Warranties
Lennox Premier
Payment method
debit, check, cash, all major credit cards, financing available

Lincensed and Bonded

  • Omaha, NE
  • Papillion, NE
  • Bellevue, NE
  • Gretna, NE
  • Bennington, NE
  • LaVista, NE
  • Ralston, NE
  • Blair, NE
  • Fort Calhoun, NE
  • Valley, NE
  • Waterloo, NE
  • Plattsmouth, NE
  • Council Bluffs, IA
  • Cresent, IA

And More

South Omaha

NATE Certified

Licensed, Bonded and Insured

Air Conditioning Service & Repair, Air Conditioning Contractors & Systems, Air Quality-Indoor, Boiler Dealers, Boiler Repair & Cleaning, Boilers Equipment, Parts & Supplies, Building Contractors, Building Materials-Wholesale & Manufacturers, Duct & Duct Fittings, Electric Contractors-Commercial & Industrial, Electricians, Furnace Repair & Cleaning, Furnaces Parts & Supplies, Furnaces-Heating, Geothermal Heating & Cooling Contractors, Heating Contractors & Specialties, Heating Equipment & Systems, Heating Equipment & Systems-Repairing, Heating Equipment & Systems-Wholesale, Lighting Contractors, Major Appliance Refinishing & Repair, Solar Energy Equipment & Systems-Service & Repair, Solar Energy Research & Development
Other Information

Parking: Lot

Specialties: Heating & Cooling, Heaters, Boilers

Emergency Service: Yes

Services: Commercial, Duct Repair & Service, Heating, Residential, Air Conditioning, Service & Repair, Installation, Air Duct Cleaning

Warranties: Yes


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Gisella J.



Omaha A1United Heater and Air Conditioning. A1 Plumbing, Heating, Air Conditioning, and Refrigeration

Technicians and their general manager are rude and unprofessional.

They went to my house charged $90.95 to clean a sensor. They heater wasn’t yet working as it should.

I called again and another technician came who identified apparently a second issue and to extra charge $400.00 and didn’t want to apply what was paid couple days before for poor service and doing nothing.

His technician Mark was rude, raised his voice and didn’t want to leave my property – just an unacceptable behavior. Today I faxed a letter to the owner, Mr. Barr and their management team but they care less and didn’t apologize.

Shame on them. They shouldn’t be in business. If they continue practicing unethical behavior they won’t be in business for too long. Shame on them! The DON"T deserve to have any customers.

I contacted the BBB for a refund. ZERO stars for them. ZERO!




I hired A-1 United to service my air conditioner last year. They found the unit to be very low on Freon and replaced the Freon. They informed me that everything else looked great and charged me $365 for 5 lbs of Freon and labor. I then found that at first use this year the air conditioner was not blowing cold air again. I had someone else come to look at it and it was low on Freon again. After speaking with several HVAC service companies I've learned that the fact that my system needed 5 lbs of Freon last year pointed to an obvious leak in the system. Had A-1 United simply told me my system had a leak I would have been able to fix it last year and not have to pay for Freon twice. I called A-1 United and spoke with their service manager to discuss my concerns. He was unwilling to do anything to own up to his company's mistake. I fully believe that A-1 has a large staff of great techs but one obviously was not sent to my home. A reputable company would have understood this and taken care of their customer. I was very shocked to be so callously shrugged off by the heating and air company that is consistently rated Best of Omaha.



Great Company

We had a bir come through our chimney on one of the coldest days of the year. It ended up flying into the fan of our heater. A1 came out in the middle of the night because we had little kids. A+ A1