Winter is Here! Tune-Up Your Heating Unit this Season!
Keeping the Lights On Since 1973 We Handle the Electrical Needs of North Shore Homes & Businesses
Prioritize Your Health With a Boost in your Home’s Air Quality

In Need of an HVAC Service or Replacement?


Serving North Shore Homes & Businesses Since 1973

No matter the time of year, Cahill Heating, Air Conditioning & Electric is always prepared to help our customers with their A/Cheating, and electrical needs. We understand how hard it can be when your air conditioner fails or your furnace is on its last leg. That's why we offer a 24/7 service. Our NATE-certified technicians are always available to address homes and businesses' needs in the North Shore area. When you need quality HVAC services, look no further than Cahill. Call us at (847) 367-4492 or schedule your appointment online!

Contact Us!

Cahill Heating, Air Conditioning & Electric | Trane HVAC Unit

Air Conditioning

We are NATE-certified technicians who offer services to homes and businesses in the North Shore.

  • A/C Repair
  • A/C Replacement
  • A/C Maintenance Agreements

Cahill Heating, Air Conditioning & Electric | Trane Heating Unit


We have handled the heating needs of customers in the North Shore since 1973.

  • Heating System Repair
  • Heating System Replacement
  • Heating System Maintenance Agreements

Cahill Heating, Air Conditioning & Electric | Electrical Tech


Let the team at Cahill keep the lights on for you and your family, or your business team.

  • Electrical Fixture Installation
  • Electrical Repair/Upgrades
  • Backup Generators

Our Affiliations

Trane Comfort Specialists
Better Business Bureau
Nate Certified
Trane Dealers