Collins Heating & Cooling

Your Reliable Highland Indiana Air Conditioning and Heating Contractors.

We don’t charge you anything extra for weekend or evening work.

Call us (219) 924-7423


Licensed • Bonded • Insured

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 units, furnaces and water heaters. 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.

Why Choose Collins?

Collins Heating & Cooling provides every customer with an exceptional experience—professional and personalized service, high-quality work, and affordable pricing. Other companies force you to go through automated answering systems or complicated online forms to get a hold of someone. But 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 neighbors around the Highland area. 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.

Our Affiliates & Partners

HVAC accredited company highland indiana
Highland Indiana Chamber Of Commerce Member
trane highland indiana authorized dealer
We’re Proud Of What Our Customers Say About Us

Mark will always go out of his way to make his clients happy. We’ve used him for years now. He is very knowledgeable and will always fix the problem.
Brandy Bakker Donaldson

Brandy Bakker Donaldson

Independent Lead Scentsy Consultant, Myfavsecents

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 HVAC Certified Technicians • Senior & Military Discounts

Our heating and cooling Services
Rheem Air Conditioner Highland, In

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:  
Heating Northwest Indiana


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 furnace that fits the needs of your home or business. For more detailed information on our heating services, visit:  
Rheem Water Heaters Highland In

Water Heaters

If your water heater is not providing enough hot water or if you just want to replace an older, inefficient unit, we will help you choose a new hot water heater that best fits your needs. We also repair water heaters that are making noise, leaking or having other issues. For more detailed information on our water heater services, visit:  
Rheem Air Filter - Aprilaire Humidifier

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 At (219) 924-7423 Or Use Our Easy Form To Schedule Service.

Request Appointment

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When you have an emergency we are here to help.

Call us (219) 924-7423


Payments Accepted
Visa Mastercard American Express Discover Apple Pay Android Pay

Senior Citizen Discounts

Military Discounts