What services does the company offer?

The company proudly offers residential and commercial HVAC services in the greater Crystal Lake and Chicagoland area. This includes services for air conditioning, heating, and more, such as installations, repairs, and maintenance.

What makes the company unique?

The company is a family-owned and operated business that has been serving the Chicagoland area since

What types of HVAC systems does the company work with?

The company's technicians work with a variety of HVAC systems, including central air conditioners, heat pumps, ductless mini splits, and geothermal systems. They also install, service, and repair boilers, furnaces, and other heating equipment.

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Voyager DBDeep data on millions of local businesses, with verified decision-makers to reveal.Contact ResearchHand-built prospect lists from human researchers, delivered in 24 hours.People SearchFind owners and decision-makers by job title, seniority and department.Chrome ExtensionColdlytics in your browser - prospect any business as you browse the web.IntegrationsInstantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

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Althoff Industries

$8.0M revenue • 40 employees • 4152 May St Ste A, Hillside, IL, 60162, United States

Last Updated Aug 19, 2026

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Company Overview

Company Name

Althoff Industries

Address

4152 May St Ste A, Hillside, IL, 60162, United States

Website

althoffind.com

Phone

(312) 332-5700

Approx. Annual Revenue

$8.0M

Employees

Established

1997

About Althoff Industries

Althoff Home Services is a HVAC company located in Crystal Lake, Illinois, serving the greater Chicagoland area. With approximately 51 employees, the family-owned and operated business has been providing residential and commercial HVAC services since 1961, offering installations, repairs, and maintenance for a variety of heating and cooling systems.

Business Profile

Read from the Althoff Industries website on Oct 12, 2026. Hover an item to see the exact wording it came from.

How Althoff Industries works

24/7 emergency serviceⓘ

Licenses, certifications & awards

Licensed and InsuredLicensed Insured
Trane Comfort SpecialistManufacturer certified

Ownership (as declared by the business)

Family-owned

About the website

Website quality (AI-assessed): 8/10 · Current copyright notice; Detailed service descriptions

HVAC Companies near Hillside, IL

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Frequently Asked Questions about Althoff Industries

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Technologies Used

Key Decision Makers

Mark Zyskowski Director-Electrical Grou

Mike Carpenter Vice President

Blake Wiltshire General Manager

Jay Grinde CEO

Christopher Bennett Executive Vice President

Tod Althoff President