Heating & Cooling in Hammond, Indiana
Honest HVAC service from a family-owned shop — minutes from your door. You get the price before any work starts, and the owner does the job personally.
Serving Hammond Homeowners Since 2005
Whether you're near the state line or closer to Calumet Avenue, Collins is just minutes away. Collins has been working on Hammond homes for over 20 years — older houses with aging systems, newer builds, everything in between.
Here's how it works: you call, the owner answers. He comes out, diagnoses the problem, and gives you the exact price before any work starts. You decide whether to move forward — no pressure. He does the work himself, wears shoe covers, and cleans up when he's done. That's it. No sales pitch, no rotating techs, no surprise invoice.
Heating & Cooling Services for Hammond Homeowners
If it can be fixed, it gets fixed. The owner diagnoses the real problem and gives you the exact cost before touching anything. No one here is going to push a replacement you don't need.
Furnace Repair →Free estimate. You see the full price — equipment and labor — before you commit to anything. The owner does the install personally. Armstrong Air authorized dealer.
Furnace Installation →Schedule before winter. A fall tune-up catches worn parts and dirty burners before they leave you without heat on the coldest night of the year.
Furnace Tune-Up →July in NW Indiana with no AC is not something you sit on. Collins gets out to Hammond quickly, finds the problem, and tells you exactly what it costs before starting the repair.
AC Repair →Free estimate on a new system. The owner sizes your home, walks you through the options, and handles the full installation. No subcontractors, no middlemen.
AC Installation →Get your AC checked in spring before you actually need it. A tune-up now means it runs right when the first 90-degree day hits.
Schedule AC Tune-Up →Collins also installs whole-home air quality upgrades — air purifiers, whole-home filtration, and furnace humidifiers — for Hammond homeowners looking to improve comfort and air quality beyond just temperature control.
Learn About Indoor Air Quality →What a Collins Service Call Looks Like
Here's what happens when you call Collins for heating or cooling service in Hammond:
What Hammond-Area Customers Say About Collins
Real reviews from homeowners across NW Indiana.
"Our furnace went out, and after getting a sky-high repair quote from another company, we decided to call Collins for a second opinion. Mark came out, quickly diagnosed the real problem, and fixed it for a fraction of the first quote. We felt so informed and taken care of."
"I called out a company (who will remain nameless) for a furnace cleaning. From the moment the technician opened the furnace door he was painting a picture of gloom and doom. I called Collins for a second opinion. Mark thoroughly inspected the furnace and assured me it was in fine working order. He saved me thousands of dollars."
"You have questions, he has answers. The best of the best, truly cares for his customers. You are more than just a dollar sign to Collins. This is the rare, personal company that you can no longer find."
Current Offers
Planning to replace your central air system? Ask about current offers.
View All Current Offers →Replacing your furnace? Check current coupons before you schedule your estimate.
View All Current Offers →Hammond HVAC Questions
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Do you repair all furnace and AC brands?
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Ready to Schedule Service in Hammond?
Upfront pricing. Owner does the work. Serving NW Indiana since 2005.
A real person answers. Collins will get you scheduled and answer any questions you have.
Send a message and Collins will be in touch to schedule.