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Serving the Chicago NW Suburbs

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service Agreements
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2 scheduled appointments, 24 Hour Priority Service, 365 Days a Year

When you have an emergency, you can be sure that we will give you priority service when you have an Service Agreement with Leith Heating & Cooling, Inc. Our Agreements are also transferable if you move to a new home.

Take Care of Your System

Avoid Last Minute Break-Downs

Heating and cooling systems have a way of breaking down when the weather is at its worst – on the coldest day of a frigid winter, or during a sizzling summer heat wave. These are times when your home comfort system must work the hardest, and when you need it most. Regular maintenance with our Service Agreements will help to maximize the life expectancy of your system and help to catch problems before they can happen.

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What is an Energy Savings Agreement?

A Service Agreement is a maintenance program specifically designed to give you and your family peace of mind. Regularly scheduled maintenance of your heating and cooling system will prolong your system’s life, maximize it’s efficiency and save you time and money in the long run.

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What does your Agreement Include?

Our Service Agreement means your system will be cleaned and inspected once during the summer cooling season and once during the winter heating season. Having your system checked regularly enables us to keep your unit running as efficiently as possible, which saves you money on your utility bill month after month. These regular check-ups also enables us to catch problems such as loose or burnt wires, and refrigerant leaks, before they lead to a larger problem such as motor failure.



No matter what day or what time you have a heating and cooling need, Leith Heating & Cooling, Inc. will be there. For our Energy Savings Agreement Customers, this also means NO OVERTIME CHARGES on nights or weekends. You will only be charged the regular business hours rate.

Save Money on Maintenance

If you have a Service Agreement with us, you will save money over regular maintenance costs with Leith Heating & Cooling. The Agreement gives you a discounted price AND we call you to schedule. That sounds like a win-win!

Use Less Energy

Save Money on Utility Bills

With regularly scheduled maintenance your system will operate with less power consumption, reducing your seasonal utility bills by hundreds of dollars. Dirty coils reduce efficiency and cause your unit to work harder, causing parts to wear out faster, and shorten the life expectancy of your unit. Your unit will cost you more month after month on your utility bill if the coils are not kept clean. Test performed by the EPA explain that as little as 1/10th of a centimeter of dirt or dust on a coil could reduce efficiency by 21%. Furthermore, our service will substantially lengthen the life of your equipment.


Average Loss of Efficiency

Average Homeowner's Yearly HVAC Bill

Average Amount being Wasted


Average Saved over regular Maintenance Costs