Oil to Gas Conversion ServicePark Ridge, IL, Skokie, IL, Wilmette, IL, Chicago, IL, Lincoln Park, IL, Morton Grove, IL, Evanston, IL, Niles, IL

Increase the value, convenience, and efficiency of your home with oil to gas conversion. Take advantage of the cost-savings and comfort of natural gas heating. Enjoy the benefits of a wide range of natural gas appliances, including ovens, clothes dryers, fireplaces, water heaters, outdoor grills, fire pits, and lighting. When you call the professionals from Guardian Heating & Cooling Service for affordable and skilled services in Chicago, IL and surrounding areas, the conversion typically pays for itself.

Efficient Oil to Gas Conversion Service

There’s no more scheduling and adjusting your life around delivery. You’ll never run out of natural gas or have access interrupted because of a power outage. Clean, safe, and energy efficient, natural gas heating delivers more even and reliable heating. Have confidence in your home comfort no matter what the weather brings across Lincoln Park, Skokie, Chicago, Niles, Evanston, Wilmette, Park Ridge, and Morton Grove, IL. Simply contact Guardian Heating & Cooling Service at (708) 628-5443, and our NATE-certified, factory trained, fully licensed, insured, and bonded specialists will handle the rest. Family owned and operated, Guardian Heating & Cooling Service is large enough to handle your needs and small enough to care.

Serving Chicago, IL and surrounding areas

Oil to Gas Conversion Service

Save today with our special offers

You love getting good deals, so here are some coupons to show our appreciation for considering us for your next heating or cooling installation or repair.

Special Offers

$89.00 Preventative Maintenance Cleaning on a Residential Furnace, A/C, or Boiler

Regularly $109.00

(708) 628-5443


No ladder setup. Cannot be combined with any other offers or discounts.

Expires: 07/31/2019

$100 Off a Carrier Furnace, A/C, or Boiler

(708) 628-5443


Cannot be combined with any other offers or discounts.

Expires: 07/31/2019

What our clients are saying

Mo W.

Guardian is a top notch company and John is one of the most outstanding technicians I’ve ever worked with. He’s a trustworthy contractor who explains potential issues as he finds them, and breaks down the process of replacement so that anyone can understand it. I own 12 HVAC systems and I’ve seen more than my share of maintenance. I’ve used Guardian for years and these guys are simply the best.

Keith B.

Have used Guardian for years. Recently had a new furnace and central air installed and I couldn’t be happier. I really trust them because the workers are always extremely knowledgeable, good problem solvers, and they explain everything in terms I can understand. The guys are always very nice, and respectful, also. Highly recommend Guardian Heating & Cooling.

Laurie E.

Just had another great maintenance visit to prepare my old A/C units (2) for the summer. John was thorough and informative. Great job.

I have used Guardian Heating for over 15 years. And my original Rheem furnaces(zoned heat) are still running! I use their maintenance contracts to get reminders, advance scheduling and discounts on annual furnace and A/C checkups/cleaning. They are always quick to respond to a service request. I highly recommend them.

We service all makes and models