Top-Quality Air Conditioning Products

Lennox Premier Dealer logo

A+ Derr Heating & Cooling is proud to offer our customers the best air conditioning systems available! As a Lennox premier dealer, you can count on us to install premium products, as every Lennox product is engineered to deliver maximum comfort and efficiency.

When it’s time to have a new AC installed, turn to the pros at A+ Derr for an expert Lennox air conditioning installation!

Call (833) 232-4328 to learn more about our Lennox products.

Frequently Asked Questions

The cost of a new HVAC or air conditioning system depends on your home and comfort needs.  To get you the most accurate cost, please schedule a comfort adviser to visit your home. All estimates are free of charge and will ensure you are getting a precise and accurate price. Furthermore, with our 0% financing, we have actually seen AC and HVAC systems pay for themselves.

According to Consumer Reports, HVAC  systems last an average of 15 to 18 years. Therefore, let us help extend the life of your system, join our USA Maintenance membership today. Click Here to learn more at
To calculate the appropriate HVAC system size, we would need to schedule one of our comfort advisers to visit your home.  Square footage, windows, insulation and ceiling height are just the few especially relevant items that will determine the type of AC system you need.
Depends on the type of filters.  Basic filters will need to be replaced every one or two months, premium filters can last up to 6 months.

Trusted Air Conditioning Technicians

Your home’s air conditioning system is critical to your family’s health, comfort and well-being. You can count on the dedicated air conditioning contractors at A+ Derr to ensure that your loved ones are comfortable during the heat of the summer.  We value education and certification so that you can rest easy knowing our expertise is there to solve your cooling system problems.

A+ Derr’s Air Conditioning and Cooling Services

Our trained service technicians are available to help!

  • Repairs
  • Maintenance
  • Replacement & Installation
  • Cleaning
  • Equipment Education

Emergency HVAC Services

You can have peace of mind knowing that A+ Derr is here for you with 24/7 services. If there is an issue with your heating and/or cooling system, we will promptly dispatch a technician to troubleshoot the problem and take appropriate steps to resolve the issue. We carry a large assortment of common parts on our trucks, which allows us to repair most problems quickly. You can count on A+ Derr Heating & Cooling to be there when you need us most.  Your home comfort is important to us.

Need AC Repair or HVAC Service?

  • A+ Expert AC technicians available 24 hours 7 days a week
  • Trucks stocked with HVAC parts to complete the job
  • Service all air conditioner makes and models
  • Up to 5 years warranty on HVAC parts
Schedule a Service Call

Heating and Cooling Maintenance Plan

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