Furnace Repair & HVAC Service in Prospect Heights, IL

Alltech HVAC provides heating and cooling service for homes and businesses in Prospect Heights, IL, along with nearby Mount Prospect, Wheeling, Arlington Heights and Des Plaines. We are a family-owned company based at 1240 Rand Rd in Des Plaines with more than 20 years of experience and an A+ rating with the Better Business Bureau. Call (866) 482-2007 to schedule service.

Furnace Repair in Prospect Heights

Rooms that won’t warm up, short cycling, strange noises or smells, and rising gas bills are common signs your furnace needs attention. Our technicians repair furnaces of all makes and quote the repair before work begins. Our guides explain why a furnace blows cold air, what causes short cycling and what furnace error codes mean.

Safety first

If you smell gas or your carbon monoxide alarm sounds, leave the home and call your gas utility or 911 first. Learn the carbon monoxide warning signs.

Furnace Replacement and Tune-Ups

Most furnaces last about 15 to 20 years with regular maintenance. When repairs on an older unit become frequent or costly, replacement is often the better investment. We install American Standard and Amana furnaces with free in-home estimates, and our Universal Savings Agreement covers an annual heating and AC tune-up.

Air Conditioning and Boiler Service

We also repair and maintain air conditioners and boilers of all makes for Prospect Heights homes and businesses.

Serving Prospect Heights and Nearby Communities

Our technicians work throughout Prospect Heights and the surrounding northwest and north shore suburbs. See also our service pages for Mount Prospect, Wheeling, Arlington Heights, Des Plaines, or browse all the areas we serve.

HVAC Services We Provide in Prospect Heights

Why Prospect Heights 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 do I know if my furnace needs repair or replacement?

Common signs include rooms that won’t get warm, rising gas bills, short cycling, strange noises or smells, and a furnace older than 15–20 years. If repairs are frequent or costly on an older unit, replacement is often the better investment. We’ll give you an honest assessment and a free estimate.

How long does a furnace typically last?

Most furnaces last about 15–20 years with regular maintenance. Annual tune-ups help extend equipment life and catch small problems before they become breakdowns in the middle of a Chicago winter.

Do you offer emergency HVAC repair in Prospect Heights?

Yes. We handle emergency heating and air conditioning repairs for Prospect Heights 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 Prospect Heights?

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 Prospect Heights

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.