For Furnace repair in Okemos MI, Call Doty Mechanical!
615 South Waverly Rd. Lansing, MI 48917

Who We Are

Excellence has been our hallmark

Doty Mechanical, Inc. is a customer-focused Heating and Air-Conditioning company. Our owners, Gary and Peggy Doty, have been serving the home comfort needs of the Greater Lansing area for over 33 years.  They were the founders and original owners of A-1 Mechanical.  After selling A-1 Mechanical and a brief retirement, at the encouragement of former customers, employees and business associates, they re-opened their doors in 2004 as Doty Mechanical.  Located in Lansing, MI, Doty Mechanical employs highly trained people whose goal is to make our company the best Heating and Air-Conditioning company in Lansing & Mid Michigan including Ingham, Eaton, and Clinton Counties.Peggy and Gary Doty owners of Doty Mechanical, a Heating and Air-Conditioning company located in Lansing Michigan.

Our company specializes in designing, engineering, and installing complete comfort systems for owners of existing homes and buildings just like yours, and new construction homes as well.  We take special pride in the craftsmen we train and employ--a fact you'll notice immediately in the attitude and integrity they bring to your job site. Our entire company works hard to make your experience with us hassle-free and enjoyable. Should we make a mistake, we will do everything in our power to correct it to your satisfaction.

From the professionalism of our sales engineers, to the dedication of our field personnel, we are committed to delivering to you the best products and services. We take our responsibility very seriously when you place your trust in us. We pledge to always tell you up front what your cost will be to complete your job correctly. We make it a point to go over any details or limitations of the proposed system that will affect your enjoyment of the end result. You are told exactly what to expect up front. We back this philosophy with our exclusive written guarantees when choosing Doty Mechanical, Inc. to contract your job.


As a Carrier Factory Authorized Dealer, when Doty Mechanical installs a new Carrier Furnace, Air Source Heat Pump or Air Conditioner, your equipment and installation is covered by a Carrier Corporation backed 100% Satisfaction Guarantee. If for any reason you are dissatisfied with your Carrier equipment or installation, Doty Mechanical and Carrier Corporation will make every attempt to resolve your concerns. If we fail to resolve those concerns, Doty Mechanical will come out and remove the equipment we installed and issue a refund to you.


We are so confident of our NATE certified installer's skills and training that we guarantee their workmanship for the lifetime of the equipment installed. If, due to poor workmanship, any materials or ductwork we use to install your furnace, heat pump, air conditioner or indoor air quality products should fail, fall apart, or not meet Michigan Mechanical Code standards (at the time of installation), we will come back and make the repair at no cost to you.

(This guarantee does not cover repairs due to mechanical failure, lack of maintenance, or homeowner error.)


Our NATE certified technicians have the highest level of training in the industry, and our experience allows us to fix it right the first time. If, within 30 days of your service call, we are required to return to your home for the same problem, you will not pay a diagnostic fee. In addition, if the part(s) we replaced are found to be defective due to materials or workmanship, we will replace those parts at no additional charge to you.

Compare our guarantees with the limitations, fine print and exclusions other companies tend to use to back their work today. Others will typically guarantee only the functionality of the equipment--not your satisfaction with the process or that the finished job lives up to your expectations. This is why Doty Mechanical, Inc. continues growing with more satisfied customers each and every year. Give us a call for your service needs and see what you've been missing.

The Employees, Management & Owners of Doty Mechanical, Inc.