STI Heating & Air Conditioning, located in Schererville, IN, is your local, trusted source for all of your heating, air conditioning, and geothermal needs. Our technicians have over 20 years of experience providing residential and commercial heating and air conditioning service to Lake and Porter Counties and the surrounding area. Do you need geothermal HVAC or custom sheet metal work? We offer those services as well. We are licensed, bonded and insured and we stand behind all of our work. We also offer free estimates on new installs and financing is available. Call today to set up an estimate!
Great service. Tech was extremely knowledgeable, and very efficient. Will definitely do business with in the future
AE
A E
Jul 23, 2025
5.0
STI Heating & Air Conditioning saved me so much money! I had another HVAC company looked at my central air unit because it was blowing lukewarm air. The other company told me I needed a new compressor for $1699 and they took only cash. After a repairman ran off with $453 of my aunt's cash, I decided I did not feel comfortable giving the HVAC repairman $2000 (with labor) in cash. So, I told him I would seek a second opinion.
I called STI Heating & Cooling who were booked for the week so I made an appointment for the following week. Ted arrived on time and was very professional. He took a look at my unit (which is 42 years old) and told me I needed a Hard Start Capacitor for $173. He also checked the amount of Freon (R22) told me I might need a little. He installed the capacitor and added a little Freon and my unit start blowing extremely cold air.
Ted’s work was great! He told me his father had an old unit like mines and he keeps him father's unit working. I told Ted the other repairman thought I needed a new compressor and Ted suggested maybe the other repairman was not familiar with older units like mine.
I am SO glad I called STI Heating & Cooling! I told Ted they are now my go-to company for ALL my HVAC activities. I would highly recommend this company - they proved to be a huge money saver for me.
SS
Scott Smith
Jul 25, 2024
5.0
I called STI to get my maintenance program started and to diagnose and repair if necessary a moaning noise coming from my furnace area.
Ted and Garrett showed up and were so courteous and professional. They did a phenomenal job on the cleaning of my air conditioner but even better they diagnosed what the moaning sound is and where it was coming from. A zone motor was going bad. That part has been ordered and it should be installed next week.
Thank you STI and a big thanks to Ted and Garrett for their professionalism and kindness.
JJ
jsuzy
Jul 28, 2023
5.0
Absolutely fabulous, Ted the tech that came put prompt and quick. He could have just said you need a whole new system and he wouldn't have been wrong. But he saw it was just a motor and some freon and I would be fine for now...with the recommendation of getting a new one soon. I initially took the day off, but he was so quick & efficient I was able to work from home on time!
Will absolutely use STI when the time comes to get a new system...fabulous local company!
TM
Tee M
May 8, 2023
5.0
Called after 5pm on a Sunday and still received a return call with the ability to schedule for the next morning. Jeff was great. In by 9am, found the problem, explained everything and happened to have the replacement part on the truck. Done before 10 am. Very reasonable priced. Much better experience than a few years ago with a local competitor. Stay away from CLIFF’S
Frequently Asked Questions About STI Heating & Air Conditioning
What services does STI Heating & Air Conditioning provide?
STI Heating & Air Conditioning offers residential and commercial heating, air conditioning, geothermal HVAC, and custom sheet metal work services.
Where is STI Heating & Air Conditioning located?
STI Heating & Air Conditioning is located at 1040 Kennedy Avenue, #407, Schererville, IN 46375, United States.
What are the business hours for STI Heating & Air Conditioning?
The business is open Monday from 8:00 AM to 4:00 PM and Tuesday to Friday from 9:00 AM to 5:00 PM. It is closed on Saturdays and Sundays.
Is STI Heating & Air Conditioning licensed and insured?
Yes, STI Heating & Air Conditioning is licensed, bonded, and insured, and stands behind all of its work.
Does STI Heating & Air Conditioning offer free estimates and financing options?
Yes, they provide free estimates on new installations and offer financing options to customers.
How can I contact STI Heating & Air Conditioning for services or estimates?
You can call them at +1 219-515-4007 or email info@stiheatingandair.com to set up an estimate or inquire about services.
What nearby services can assist me if I visit STI Heating & Air Conditioning and need roadside help?
All Pro Towing & Recovery, located nearby, offers towing, emergency roadside service, and locksmith services that could assist you if needed during your visit.
Are there any nearby places where I can find metal fabrication or supply services around STI Heating & Air Conditioning?
Yes, nearby businesses such as Decor Ironworks, Inc., Green Acres Ironworks Inc, Kennedy Metal Products, and Boender Electric offer metal fabrication, metal supply, and related contractor services.
Is there a local gym or physical therapy center near STI Heating & Air Conditioning for post-visit fitness needs?
Cross Fit Dna is a nearby gym that also offers physical therapy and laboratory testing services, suitable for fitness or rehabilitation needs after your visit.
What attractions or community services are nearby STI Heating & Air Conditioning that visitors might want to explore?
Nearby, visitors can find the Tritown Pop Warner park and youth organization, Schererville Animal Control & Shelter for pet services, as well as the Tri Town Raiders Field for recreational activities.