Welcome to

Alison Mechanical

Look what an experienced HVAC Contractor in South Lyon & Novi, MI can do for you 

Armstrong Air
Bryant Heating & Cooling Systems

Why Choose Us?

Alison Mechanical is dedicated to providing superior HVAC services, no matter the size of the project. Home and business owners throughout South Lyon & Novi, MI trust our crew to find swift, affordable solutions to their HVAC problems because:

- We're skilled: Our lead HVAC contractor has over 31 years of experience

- We're local: Our family-owned and -operated business supports the South Lyon, MI community

- We're thorough: You can count on us to find solutions other companies can't

- We're professional: When you contact our crew, you'll always work with a prompt, skilled HVAC contractor

- We're qualified: We're fully licensed and insured in Michigan

Can't Take the Heat?


A faulty air conditioner can make the summer miserable. An AC repair from Alison Mechanical Heating & Cooling LLC in South Lyon & Novi, MI can keep you cool and comfortable year-round. Whether you know your unit has a leak or you just want to make sure it's in good shape, we can help. Our HVAC services include AC installation, repair and maintenance. Regular maintenance and repairs are necessary to keep your home comfortable and your energy bills low.

HVAC services include more than just heating and AC installation services. Learn more about our AC repair and maintenance work now by calling 248-508-9793.

Experience Matters

With over 30 years of experience, David Stark has built a solid reputation in the mechanical field. He is committed to providing the community with quality HVAC services including repairs, installation and maintenance. As a top-rated business with HomeAdvisor, Alison Mechanical Heating and Cooling is your go-to solution for HVAC services.

David believes that the recipe for success is honesty and reliability. While some other businesses seek to profit by cutting corners or recommending unnecessary services, David believes that his reputation and consistent service reaps bigger profits in the long run.

As a local, family-owned and operated business, our team fixes things that other people can't. We use Bryant and Armstrong products for sales, service and installation. We honor all manufacturer's warranties and guarantee your satisfaction. If you are not happy, we'll make it right! Call 248-508-9793 for the services you need. All calls are returned promptly. We are available 24/7!

Your Comfort is Our Top Priority


Your HVAC system does more than just blow hot and cool air around the house. It's also responsible for keeping every room in your home at a consistent temperature and maintaining your indoor air quality. If your HVAC system isn't working the way it should, reach out to Alison Mechanical Heating & Cooling LLC. We offer a wide range of HVAC services, including furnace repair, AC installation, AC repair & furnace replacement. You can trust our family to take care of yours at every turn.

Call 248-508-9793 today to learn more about our residential & commercial HVAC services. A dependable HVAC contractor in South Lyon & Novi, MI will gladly answer your questions.

Found a problem another company can't fix? We operate a full sheet metal shop and perform custom ductwork repairs and installations. If you need custom components, you can get them from us.

Contact Us For a Free Quote

Residential & Commercial Services

Furnace Repair & Installs

AC Repair & Installs

What Others Have to Say

"All of my experiences with Dave at Alison Mechanical have been professional and hassle free. Top notch. Recommendations to friends have been equally good experiences. Alison Mechanical is a fair and reliable company"


"The heat went out in my office unexpectedly and these guys were able to get out to the office within a few hours, ran out and grabbed the parts, and returned to get it running again same day. Couldn't ask for a better experience. Will definitely call again."


"We have used Alison for our home and rental for repairs of older units and finally replacements. They were fair, honest and did exceptional work. I have recommended them to several friends who were also very satisfied. I wish I could give them 6 stars!"


"Dave is very knowledgeable and fixed our furnace in no time at all. He was very prompt and courteous. I would recommend Alison Mechanical and I would call them again for my home."


"Alison Mechanical came out within a couple hours of me calling (with no prior customer experience) to fix my furnace on a very cold winter day. The service tech was polite and explained the issue. He also gave me a few tips on some minor fixes to try before having to call for service. Highly recommend"


"Dave is both a competent professional and an authentically friendly person. He resolved my furnace problem quickly and provided a thorough report on his inspection. We will call on him again when install whole house AC this spring."