Greater Chicago Heating and Cooling

Our Service Areas

For over 45 years, Cahill Heating, Cooling, Electric, Plumbing & Sewer has helped customers in the greater Chicago area. We are a team of experienced HVAC technicians who handle residential and commercial services for customers in:

  • Lake Forest
  • Lake Bluff
  • Libertyville
  • Mundelein
  • Vernon Hills
  • Lincolnshire
  • Deerfield
  • Gurnee
  • Hawthorn Woods
  • Highland Park

Our NATE-certified technicians offer various services to keep your HVAC system working no matter the time of year. Whether you need a quick A/C tune-up or a heating system repair, the team at Cahill Heating, Cooling, Electric, Plumbing & Sewer can help. When you call us, we perform a quick assessment of your system to determine the issue. Then our team will perform the repairs that are needed promptly. If we determine that your system needs to be replaced, we will recommend the best system for your home or business.

Additionally, Cahill offers 24/7 emergency services. If your system goes out in the early morning or after midnight, you can count on Cahill to help. Please contact us at (847) 367-4492 or schedule your appointment with our online 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