business development group

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Experts in minding our business and helping you mind yours.

Mingledorff’s was founded in 1939 as one of the very first Carrier contractors in the country. In 1958, we left the contracting business and became a wholesale distributor at the request of the Carrier Corporation.In those days, HVAC, especially in the residential market, was a rarity. As a result, our survival as a distributor depended on helping those in the business succeed.


Many years later, our focus as a distributor remains the same. In fact, our slogan sums it up best: Equipping HVAC Professionals to Succeed®.


That’s because operating an HVAC Dealership requires more than technical skills. Simply put, many dealers work more in their business than they work on their business.


We are here to help. Our Business Development Group offers business training and support that covers the landscape of the HVAC business and we are available to assist our dealers regardless of the business season they are in — from start-up to long-running, we are here to serve you.

How can we Help?

Business Training

No dealership has ever closed the doors because they could not install a furnace or repair an air conditioner.  Sadly though, many are no longer in existence because of a lack of business acumen.  Our Business Development Group is pleased to provide dealer support in this all-important area of the industry.


Here’s how we can help you with your business.

  • Pricing for Profit
  • Quick Books Support
  • Business Valuation
Customer Service Training

We are in an industry that offers Customer Service and many times the interaction with the customer occurs during times of stress.  Our Business Development Group is available to educate your employees on how best to interact with your customers. From first contact to job completion and every step in between—good customer service is critical and our group stands ready to assist you.


Here’s how we can help you with customer service.

  • Customer Interaction Training
  • First Impressions Training
  • The Art of Pre-Selling
Retail Sales Training

You’ve heard the old adage that nothing happens until the sale is made.  Our Business Development Group is equipped with knowledge and resources that will help your dealership do just that.  From an award-winning Retail Sales Proposal Resource to Retail Sales knowledge that will improve your company’s sales skills, our support in this area is complete and available to you.


Here’s how we can help grow your sales. 

  • Propose and Close® Retail Sales Program
  • Product and Resource Training
  • Retail Salesperson Training & Seminars
Technician & Installer Training

Your Technicians and Installers represent your dealership to the public. Opinions of your company are impacted by the way they conduct themselves while in your customer’s home. Ironically, these crucial employees can be some of the most overlooked when it comes to training them to interact with your customers. Our training covers subjects ranging from people skills to selling accessories and service agreements—a must for any dealership to provide next-level customer service.


Here’s what we offer.

  • Replace or Repair Philosophy
  • Selling Accessories for Technicians
  • Technician Training & Seminars

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Meet Our Team

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Gary Turner

Business Development Manager

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Joyce Conger

Programs Facilitator

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Dealer Testimonials

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J&J Heating & Air & Plumbing, LLC

Byron, GA


Since I started using Propose and Close 3 years ago, my numbers have more than doubled in sales. I have gone from selling 95% basic model, 14 seer systems to 50% Evolution (18 & 24 seer) systems, 30% Preferred (16 seer), with only 20% being 14 seer or Legacy. The difference was immediate. The first day I used Propose and Close I sold my first 20 seer. Not only do I sell higher efficiency systems, but the time it takes to work up a proposal has been cut in half. Joyce is fantastic as my contact. She is always super responsive to my phone calls or emails, and is able to make the adjustments I need usually within a day. I would not want anyone else to handle my account, because I can always depend on her. Her suggestions have without a doubt increased my sales & productivity. At this point, I would not want to sell HVAC equipment without Propose and Close and Joyce.

Blevins A/C & Electric

Ft. Payne, AL


Mike McLaney gave our company some great advice that was really appreciated. We were having some issues getting our invoices from our dispatch software over to a new field service product. Mike showed us how to fix the issues, and he answered all of our questions.

Ferguson Heating & Air

Peachtree City, GA


In 2019, we implemented Propose and Close, a retail sales tool that Mingledorff’s offers in order to more efficiently price, present and close more sales. Gary Turner came out to train us on the software. Gary made sure we understood the software to the point that we were able to begin using it immediately! He was very organized, professional, and personable.


Gary has come out a few times since then to train new people and is always responsive and genuinely friendly. I always look forward to working with Gary. Gary is an asset to Mingledorff’s.

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