QUALITY. VALUE.
INTEGRITY.
THE HOME COMFORT EXPERTS YOU CAN
TRUST FROM START TO FINISH
Increase your efficiency, lower your bill, and control your home’s temperature from anywhere. Breathe a breath of fresh air with quality products.
The BEST way to keep your home comfortable! Extend the life of your existing system with a precision tune-up.
WE go
Above and Beyond
To serve You
Since 1987, we’ve been helping folks throughout the Lansing and Northwest Indiana area enjoy total indoor air comfort in their homes and businesses. Nationally recognized as both the Residential Contractor of the Year and the Best Contractor to Work For, Illiana cares about its employees as much as its external clients.
Testimonials and Reviews
“Chris L. Just did my semi-annual service and did a great job , also keeping me informed on the condition of my equipment and ideas for and when I may need to think about an update. Very knowledgeable employee. Thanks again.”
“Great service! Service tech explained and showed pictures of everything he did.”
GOLDSTAR MAINTENANCE PLAN
Get to the front of the line and make maintenance a breeze with a Goldstar membership, only from Illiana Heating & Air Conditioning. With a Goldstar membership contract, not only will you guarantee yourself the great service of our professionals, you’ll also receive the following benefits:
Latest tips and tricks
Install HVAC Zoning for Ultimate Summer Comfort
Do you and your family battle over the thermostat on sweltering summer days? One person cranks the AC, and another promptly lowers it. Someone else dials it back up, and someone dials it down. The temperature ping-pongs from cold to warm and warm to cold. It’s a familiar scene in many , homes with a…
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Your Top 10 Guide to Buying a New AC in Crown Point, IN
Summer is calling, and with it comes the need for a new AC system. You want an efficient and affordable air conditioning unit to keep you cool in . We get it. While navigating the world of AC units can feel overwhelming, has compiled the top 10 essential things you need to know before you…
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2026 AC Maintenance Guide: Is a Spring Tune-Up Worth It?
The sun is out, the weather is perfect, and the trees are starting to bloom in . Spring is officially here! And because we’re a month or two away from the first real heatwave hitting (if we’re lucky), nearly every homeowner asks the same question: “Do I really need to pay for an AC tune-up…
MORENeed financing?
Illiana Heating & Air Conditioning has you covered!
We understand how tricky it can be when your HVAC system breaks down. We provide financing options so we can help relieve some of the stress. Subject to credit approval, you may qualify to finance a new system installation or repair service. Go to the website below and complete the application form to find out what you are eligible for.
LET US HELP YOU EASE THE STRESS OF THOSE COSTS
Adding or replacing a heating and cooling system affects your finances as much as your home comfort. Fortunately, we’ll help you take advantage of monthly promos and specials Illiana Heating & Air Conditioning is offering.
Join the Illiana Team!
SERVING NW INDIANA AND SURROUNDING AREAS
WE SERVICE ALL BRANDS
