Heating and Cooling Services

HVAC Services for Greater Chicago Homes & Businesses for Over 45 Years

You rely on your HVAC system no matter the season. When it malfunctions or stops working altogether, you’ll want to find a reliable, trustworthy company to handle all repairs or replacements – that’s where Cahill Heating, Cooling, Electric, Plumbing & Sewer comes in.

Our factory-trained technicians have worked in the HVAC industry for years. The technicians at Cahill Heating, Cooling, Electric, Plumbing & Sewer are on call 24/7. Whether you need your A/C tuned up at 3:00 pm or your heater repaired at 3:00 am, you can count on us. In addition to handling repairs, our team also handles replacements and new installations.

We carry top of the line products from Trane, Reznor, and Generac:

We carry top of the line products from Trane, Reznor, and Generac:

When you’re ready to get started, contact the experts at Cahill Heating, Cooling, Electric, Plumbing & Sewer today. Give us a call at (847) 367-4492 or fill out the contact form for more information.

WHO WE ARE

Discover the Cahill Difference

Same Day Service, 24/7
365 Emergency Service
Unparalleled honesty
and integrity
Factory Trained Technicians Factory Trained
Technicians
100% satisfaction guarantee
Unmatched customer service Unmatched customer service
We deliver peace of
mind!
ca hill logo
WHO WE ARE

Discover the Cahill Difference

Same Day Service, 24/7 365 Emergency Service
Unparalleled honesty and integrity
Factory Trained Technicians Factory Trained Technicians
100% satisfaction guarantee
Unmatched customer service Unmatched customer service
We deliver peace of
mind!
REVIEWS

What our clients
are saying

Orest B.

I have used Cahill for the past 20 years. Would not think of anyone else for my HVAC needs.

Marie C.

A locally owned business that puts the customer first. Always on time. Always fair pricing. Great service.

Cynthia J.

Great service, friendly technicians. They are helpful and informative. Have relied on them for years.

Kaelin T.

We have been using Cahill for years and would highly recommend!

David W.

Cahill has been helping us for our heating and cooling needs for over 10 years. They continue to surprise me with their quality of work and the dedication of their expert technicians. An amazing company.

REVIEWS
What our clients
are saying