AC Repair & HVAC Service in Mount Prospect, IL

Alltech HVAC repairs, installs and maintains air conditioners, furnaces and boilers for homes and businesses in Mount Prospect, IL. Our family-owned company is based next door in Des Plaines and has more than 20 years of heating and cooling experience. Call (866) 482-2007 to schedule service.

Air Conditioning Repair in Mount Prospect

If your air conditioner is blowing warm air, short cycling, freezing up or running nonstop, our technicians will find the cause and quote the repair. Read our guides on why an AC stops cooling and why an AC freezes up for things you can check first.

Repair or replace?

If your AC is older and repairs are becoming frequent or expensive, replacement is often the better investment. We install American Standard and Amana systems and provide free estimates. Our repair vs. replace cost guide explains how to weigh the decision.

AC Tune-Ups and Maintenance

We recommend an AC tune-up every spring. Our Universal Savings Agreement covers an annual AC tune-up and heating tune-up, priority scheduling, 10% off repairs on covered equipment and a one-year parts and labor warranty on our work.

Furnace and Boiler Service

When the weather turns, we repair and tune up furnaces and boilers of all makes for Mount Prospect homes.

HVAC Services We Provide in Mount Prospect

Why Mount Prospect Homeowners Choose Alltech HVAC

Family-owned and operated in Des Plaines for more than 20 years
A+ rating with the Better Business Bureau
Licensed and insured, with a Certificate of Insurance available on request
We service all makes and models
Free estimates on new system installations
Monthly payment options through Hearth financing

Frequently Asked Questions

How often should my AC be serviced?

We recommend a professional tune-up once a year for each system: your air conditioner in the spring and your furnace in the fall. Our Universal Savings Agreement covers both.

Why does my air conditioner smell musty?

A musty smell usually points to moisture and mold growth in the drain pan, evaporator coil or ductwork. It should be checked by a technician.

Do you offer emergency HVAC repair in Mount Prospect?

Yes. We handle emergency heating and air conditioning repairs for Mount Prospect homes and businesses. We do not offer 24-hour emergency service to residential customers, so call our office at (866) 482-2007 during business hours, Monday through Friday, 7:00 a.m. to 3:30 p.m.

Do you charge for estimates in Mount Prospect?

We offer free estimates on new system installations and replacements. For repairs, we charge a diagnostic fee for a technician to determine what is wrong with your unit, then provide a quote for the repair. Call the office for current diagnostic fees.

Do you offer financing?

Yes. Alltech HVAC partners with Hearth to offer monthly payment options. Checking which loan options you pre-qualify for will not affect your credit score.

Schedule HVAC Service in Mount Prospect

Call (866) 482-2007 or use our online contact form to schedule service or a free estimate on a new system. Our office is open Monday through Friday, 7:00 a.m. to 3:30 p.m., and weekend appointments are available by request.