We service the greater Ann Arbor, servicing several counties in Central and SE Michigan. For more information on the services that we provide, please see the list below.

A/C System Services
Specializing in residential and commercial air conditioner installation, maintenance & repair, On The Mark Mechanical is dedicated to keeping our clients in keeping greater Ann Arbor cool. No job is too big or small, and we deliver 100% customer satisfaction on every project.

AC System Installation

We offer a wide selection of air conditioner models at affordable prices.Our Supported Brands include Lennox, Rheem, York, Carrier, Trane, Weather King, Honeywell, Goodman & more.


AC System Maintenance

Regular air conditioner maintenance is one of the best, most cost-effective ways to stay cool in the summer and keep your system running at full capacity.

AC System Repair

Sometimes in spite of the best of intentions, air conditioners fail and calling an experienced service company is going to be your best bet. Diagnosing and repairing sophisticated A/C equipment is one of our many strengths.

So whether you need air conditioner installation, maintenance or repair for a single unit or an entire office building, our highly trained and experienced technicians will provide the speedy, high-quality service you can always depend on with On The Mark Mechanical. Contact us today!

Furnace Services
We provide the highest level of quality in furnace installations, replacements & repairs, and all jobs are performed by knowledgeable technicians you can trust.

Furnace Repair

Many people totally ignore their furnace…until it stops working. When your furnace goes out, you’ll want an experienced professional’s help to make sure you don’t make the problem worse!

Furnace Installation & Replacement

Our staff members all have years of experience with full furnace installations and replacing existing furnaces, so put our knowledge to work for you!

For a free estimate on your furnace installation, replacement or repair, contact us today!

Commercial HVAC

Commercial HVAC

We provide full service for all your HVAC needs, from purchasing and selling to installations and repair-work.

Read More About Our HVAC Services

As your heating and cooling system ages, it can lose efficiency and even break, and choosing just any contractor can lead to a costly and prolonged operation. So when you need any service for your Heating, Ventilation or Air Conditioning Systems, you can count on On The Mark Mechanical to get the job done right. Our highly experienced, licensed contractors provide free consultation to help you decide on the best system for you, and we supervise the project along every phase of the process to guarantee quality results.

We offer a wide selection of commercial HVAC (Heating, Ventilation and Air Conditioning) products, including:

  • AC Units (Central, Split, Window, Wall)
  • Heating Systems (Gas, Electric, Solar, Forced Air, Hydronic)
  • Ventilators (Humidifiers, Electronic Air Cleaners)
  • Thermostats
  • Sensors
  • Damper Actuators

We also carry ENERGY STAR rated heating and cooling systems that can help you save up to 30% on energy costs. So don’t wait to get your system repaired or installed. Contact us today to get the best support available to meet your needs, schedule and budget.

Commercial Refrigeration

Commercial Refrigeration

If you operate a restaurant, bar/tavern, or a grocery store, who do you call when your cooler, freezer, or ice machine decides to quit working? Make it On The Mark Mechanical.

Read More About Our Commercial Refrigeration Services

On The Mark Mechanical offers a complete range of repairs and maintenance on all commercial refrigeration equipment and our technicians are trained to repair most brands and types of equipment.

Whether it’s a Walk-In-Cooler or Freezer or a Make-Line cooler or freezer, give us a call and we can get your equipment up and running in no time! When it comes to your Hoshizaki, Scotsman, or Manitowoc Ice Machine, we have repaired them as well.

Trust the refrigeration experts to keep it cool, or frozen. Contact On The Mark Mechanical today.

Duct Installation & Repair

Duct Installation & Repair

We are a full-service duct-work company offering fabrication, design, installation and repair service at competitive rates.

Read More About Our Duct Installation & Repair Services

Poorly installed or corroded ductwork can account for up to 30 percent of your heating and cooling costs, costing hundreds if not thousands of dollars, depending on the size of your residence or building. But more than that, leaky ducts can contaminate your indoor air with mold, dust and toxins that pose a serious health hazard.

At On The Mark Mechanical, we are a full-service ductwork company offering fabrication, design, installation and repair service at competitive rates. Our experience and relationships with manufacturers allow us to offer unbeatable prices on all parts and labor.

When you choose On The Mark Mechanical, you can always rest assured that:

  • All our employees have been hand-picked to ensure the highest level of experience, competence and courtesy.
  • We will never add any hidden or un-agreed upon charges – the initial quote will be the all-inclusive end price.

We are fully committed to completing all projects within your budget and schedule. So whether you need ductwork service or installation, count on On The Mark Mechanical to meet your performance needs and stay within budget.

For more information or to schedule a free consultation, please contact us today.

Air Purification & Humidification

Whole Home Humidification

We’ve partnered with industry leader Aprilaire to help you create a healthier, more comfortable home environment.

Air Purification Systems

An air purification system helps control indoor air pollutants such as dust mites, bacteria and pollen, as well as removes odors and chemical vapors.

Read More About Our Air Purification Systems

The Environmental Protection Agency (EPA) and its Science Advisory Board report that indoor air pollution is among the top five environmental risks to public health. And no home is immune to indoor air quality issues.

All homes contain concentrations of dust, dirt and chemicals. An air purification system helps control indoor air pollutants such as dust mites, bacteria and pollen, as well as removes odors and chemical vapors. Once these contaminants are circulating through the ductwork, they can enter every room in your home, so no area is safe.

Indoor air pollutants come from almost everything in our homes including cleaning supplies, smoke, dust, molds, paint, carpets, drapes, upholstery, furnaces, gas burners, wood and other building materials. Central air purification systems reduce the amounts of these particulates in indoor air.

An air purification system installs easily on your home’s existing heating and cooling system’s air handler. Our trained technicians have years of experience installing the various types of these systems, so put our knowledge to use for you! Contact us today for a free consultation on which air purification system is right for you!

Read More About Whole Home Humidification Services

Dry air in your home can mean static hair, itchy skin, and painful shocks. On The Mark Mechanical has partnered with industry leader Aprilaire to help you create a healthier, more comfortable home environment.

Whether it’s an automatic model (pictured below) or manual, installing an Aprilaire humidification system will make a big difference in the indoor air quality of your home.

If you have more questions before you call us for your estimate, log on to aprilaire.com. Otherwise, pick up the phone and take that next step.