Mark Ortiz With Collins HVAC Van

Collins Heating & Cooling

Your Reliable Air Conditioning and Heating Contractor.

  • No Weekend Or Evening Charges
  • Free Estimates On New Equipment
  • Honest, Upfront Pricing
Call Today (219) 924-7423


Heating & Air Conditioning Service in Northwest, Indiana.

Collins Heating & Cooling, located in Highland, Indiana, is a trusted HVAC contractor for all of your heating and cooling needs, including installation, repair and maintenance services for air conditioning & furnace units. We service all makes and models of HVAC equipment.

Founded in 2005 and owned and operated by Mark Ortiz, who has over 20 years experience in HVAC services, Collins Heating & Cooling has established a reputation of excellent, personal service at affordable prices.

Collins Heating & Cooling provides every customer with an exceptional experience—professional and personalized service, high-quality work, and affordable pricing. When you Call Collins Heating & Cooling, you are directly connected with Mark to talk about your heating or cooling needs.

As a small, local business, we continually strive to do the best work possible for our customers in Highland and Northwest, Indiana. We have built a loyal customer base over the past decade, and we are proud to say that much of our new business comes in the form of referrals from our satisfied customers.

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We’re Proud Of What Our Customers Say About Us

We’re Proud Of What Our Customers Say About Us

Our Heating & Cooling Services

Armstrong Air Conditioning Pro Series

Air Conditioning

When the sweltering heat of the Indiana summer arrives, we're here to help you stay cool and comfortable. Whether you are looking to install a new, energy efficient residential or commercial cooling system, repair your current AC unit, or have a spring inspection and tune-up completed, our certified HVAC technicians are ready to help. For more detailed information on our cooling services, visit:
Armstrong Air - High efficiency furnace unit


When winter is on its way, we will inspect & clean your furnace, ensuring your family stays safe and warm all season long. In need of furnace repair? We will diagnose and fix what’s wrong. If you are ready to replace your heating system, we will help you choose a highly efficient Armstrong Air furnace that fits the needs of your home or business. For more detailed information on our heating services, visit:
Aprilaire Air Purifier & Humdifer

Breathe Easier

According to the Environmental Protection Agency, air inside people's homes can be 2 to 5 times more polluted than the air found outside. We can help provide your family or business with products that will protect, refresh and purify the air you breathe. For more detailed information on our indoor air quality services visit:

Call Us Today (219) 924-7423 Or Use Our Easy Form To Schedule Service.

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When you have an emergency we are here to help.

Call us (219) 924-7423


Senior Citizen Discounts

Military Discounts