Cahill Heating, Cooling, Electric, Plumbing & Sewer

01/15/2026

We’re excited to welcome Andy Visconi to the Cahill team as our new Director of Plumbing & Sewer Services! 🎉

Andy brings deep experience and leadership that will help us continue raising the bar for our customers and our team.

Read the full announcement here:

Industry veteran brings nearly 30 years of experience as company expands full-service plumbing and sewer capabilities in the Chicago area

04/17/2025

The summer rush is upon the Greater Chicago area. With the help of our friends at Munch Supply, the Cahill warehouse carries a wide variety of residential air conditioners and heat pumps to ensure same or next-day installation.

04/07/2025

Morning comes early at the Cahill shop. Keeping customers warm in the winter and cool in the summer is a 24/7 job.

04/04/2025

There's no job too large for the Cahill team. Installing both 75-ton and 50-ton rooftops in Vernon Hills, IL.

03/31/2025

A longtime customer made our day sharing his video of running into 3 members of the Cahill team on their way to install a Trane 75 Ton Rooftop.

02/14/2025

Rooftop HVAC systems, also known as RTUs, are heating and air conditioning systems installed on the roof of buildings. While they're predominately used for commercial applications, Cahill frequently installs them in larger homes.

10/26/2024

If you're attending the Lake County Home Show this weekend, come say hello to our Service Manager Paul and Project Manager Holly!

10/01/2024

Continued education at the Cahill shop today. Triangle Tube offers a broad range of condensing boilers for residential and commercial use.

09/25/2024

Members of the Cahill team couldn't ask for better weather as they replace the rooftop units at the Lake Forest Recreation Center.

08/28/2024

As the name suggests, rooftop units, or RTUs for short, are located on the roofs of commercial buildings to provide heating and cooling. Cahill is a preferred service and installation provider in the Greater Chicago area.

08/19/2024

Cahill is proud to serve the Advocate Condell Centre Club. They're not your typical gym—they're a wellness oasis.

08/14/2024

Cahill was able to provide residents at The Ravines with superior heating and cooling equipment for a more competitive price. Thank you for the opportunity and your trust!