40+ Years Of Expertise in Heating & Cooling In Lake County

Put our extensive history of experience and expertise to work with exceptional heating and cooling services.

With our competitive prices, Lee Mechanical provides the best value for long-term energy saving on your utility bills as well as long-lasting heating and cooling appliances. Our goal is to provide customers with the absolute best in service. That’s why we dedicate ourselves to servicing all major brands and all aspects of home heating and cooling.

Whether your home is located along the beautiful shores of Lake Michigan in Winthrop Harbor, near the Ray Bradbury Experience Museum in Waukegan,  close to Six Flags Great America,  or by Chain O’Lakes State Park, our expert team has been fixing, installing, and updating homes and businesses across Lake County and southeast Wisconsin for more than 40 years.

Get a quote today and experience the highest quality service today.

Lee Triple Crown Best in Kenosha

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Current Special

7-year Extended Warranty on the purchase and installation of a new Generac Guardian Series Generator – $695 Value



Winters can be brutal, especially when the furnace isn’t working. Stay warm this winter with heating services that ensure proper operation of your furnace, boiler, and radiant heater for a comfortable, cozy season.

Home Renovation


No need to relive the days of sticking noisy fans in every window to chill out in the scorching summer heat. Our pros will install and repair air conditioning units and zoning systems so your entire home stays as frigid as you want it to be.



Your breathing environment matters just as much as the air outside. Purify the air inside your home or office and keep it fresh with air purifiers, multistage air purifiers, and humidifiers. Breathe easy knowing these systems are hard at work, day and night.

Drains, Sewage And Wastewater


It happens. From winter storms, snow, and ice, to rain, heat, and even simple mishaps, power outages can happen. Prevent it from affecting your home or workplace with a Generac Generator that keeps your lights on for hours at a time, regardless of what’s happening with your town’s power grid. Prepare yourself for the next outage with an automatic backup Generac generator.


We are proud to service all Lennox appliances, ensuring quality installations and repairs for a home that’s as comfortable as it is functional. As one of the industry leaders in HVAC, we work closely with our technicians to ensure your satisfaction.

Complete Heating & Cooling Services Offered Throughout Lake County

  • Furnaces
  • Gas boilers
  • Radiant heating systems
  • Energy Recovery Ventilators (ERV)
  • Gas fired unit heaters
  • Air conditioners
  • Heat pumps
  • Air purification systems
  • Media air cleaners
  • Programmable thermostats
  • Ductless split heat pump systems
  • Generac generators

Customer Reviews

Kitchen Blueprint | Lee Mechanical


Don’t worry, Lake County, the Lee team understands that home repairs and emergencies can happen at the most inopportune times. To help make projects or unexpected repairs simpler and to keep family budgets on track, Lee has partnered with Service Finance Company, LLC to offer our customers a financing option. Service Finance Company provides no-interest loans to help with unexpected home repair expenses or to start your next remodeling project!


In need of air conditioning repairs, home heating replacement, or generator installation? Lee is your go-to provider for all things related to the comfort and function of your home and office.

From individual temperature control per floor to total connectivity between building power and external generators, we have you covered. Our installations and repairs are performed by leading technicians, meaning you can rest assured that your property is protected from heating- and cooling-related issues for years to come.

Contact our team of expert technicians and sales reps to find the perfect solution for your home and office. When it comes to heating and cooling, Lee Mechanical is the name to remember.