SINCE
1973 Providing quality heating, cooling, and
electrical services to North Shore homes
and businesses.
Providing quality heating, cooling,
and electrical services to North Shore
homes and businesses.
Service request

Contact Us Today

Cahill service van
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
technician using screwdriver on electrical panel technician using screwdriver on electrical panel

Heating, Air Conditioning & Electrical Services

Local Experts Serving the North Shore Area for 50+ Years

Ensuring your home stays comfortable all year round starts with your HVAC system. So, when you need a trusted team to handle any heating or air conditioning services, go with the team that has over 50 years of experience serving the Greater Chicago area: Cahill Heating, Cooling, Electric, Plumbing & Sewer. Our factory-trained technicians are committed to providing the highest quality HVAC solutions, so you can rest easy knowing that our professionals have the skills and tools to keep your HVAC systems in top-notch shape. Whether you need complex repairs or routine maintenance, Cahill is the company to call.

Heating & Air Conditioning Contractors

With the highs and lows of Illinois’ weather, a reliable HVAC system is a must for any homeowner in the Chicago area. At Cahill, we provide a full range of heating and air conditioning services to ensure you and your family can stay comfortable. Turn to our experts when you need repairs, replacements, or maintenance for:

We also offer a range of indoor air quality products and services, including whole-home humidity control, air scrubbers, and more, to help you breathe easier in your home.

Generac Generator Installers

Make sure you aren’t left in the dark during a power outage by working with the Cahill team! We install top-quality generators from Generac, the leading brand on the market. With a generator seamlessly installed by our experts, you don’t have to worry about food spoiling or being left with uncharged devices.

Call Cahill today at (847) 367-4492 to schedule heating, AC, or generator services in the Greater Chicago area.

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ca hill our story img ca hill our story img
Our Story

In 1973, Cahill Heating, Cooling, Electric, Plumbing & Sewer was founded with the mission of providing high-quality heating, air conditioning, and generator services to the North Shore community. Over the past 50 years we have been in business, our company has done this and more, allowing us to build a reputation for excellence in all that we do. From standard maintenance appointments to complex installations, our friendly technicians bring the same unwavering commitment to quality workmanship. That's why working with our team ensures a job well done.

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!
Our Promotions Our Promotions

At Cahill Heating, Cooling, Electric, Plumbing & Sewer, we believe our customers deserve top-quality services at affordable prices. That's why we offer a range of coupons to help you save money! Browse our special offers to start saving on heating and air conditioning services today.

$99.99
AC Tune-Up
Keep your family
cool and comfortable all summer long
Benefits of our AC tune-up & safety inspection
  • Extends lifespan of AC system
  • Improves energy efficiency
  • Helps prevent costly repairs
  • Improves indoor air quality
*Cannot be combined with any other offer. Price is per system.
Expires July 31, 2024
Free Estimate
Need A New
Air Conditioner Or Heat Pump?
What you get from Cahill
  • We'll come to your home
  • Analyze your unique installation needs
  • Present you with personalized solutions on what to do next
  • Financing options available

Expires July 31, 2024
$99.99
AC Tune-Up
Keep your family
cool and comfortable all summer long
Benefits of our AC tune-up & safety inspection
  • Extends lifespan of AC system
  • Improves energy efficiency
  • Helps prevent costly repairs
  • Improves indoor air quality
*Cannot be combined with any other offer. Price is per system.
Expires July 31, 2024
Free Estimate
Need A New
Air Conditioner Or Heat Pump?
What you get from Cahill
  • We'll come to your home
  • Analyze your unique installation needs
  • Present you with personalized solutions on what to do next
  • Financing options available

Expires July 31, 2024
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