St. John

M.N. Heating and Air

Your Trusted Air Conditioning Repair Partner Serving St. John, IN Since 2013

St. John

At M.N. Heating and Air, we understand how critical reliable climate control is for Northwest Indiana homes and businesses. Since 2013, we've been the go-to provider for HVAC installation, maintenance and repair in St. John and surrounding areas. Our factory certified technicians have the experience to accurately diagnose issues and deliver quality, lasting solutions tailored for your needs and budget.

Located at the Heart of Crown Point

M.N. Heating and Air

11820 Burr St.

Crown Point, Indiana 46307


St John

Unmatched Heating and Cooling Services

Furnace Repair and Replacement

When frigid weather hits, depend on our licensed professionals for furnace installation, maintenance, and repair. We are experts with all top brands and use cutting-edge tools to analyze and fix any issue. Trust us for emergency repairs, tune-ups, and upgrades to keep your home comfortably heated all winter.

Air Conditioner Installation

Our fully licensed team excels in air conditioner installation, maintenance, and repair. We help select correctly sized, energy-efficient systems and ensure optimal setup for maximum cooling. Count on us for repairs, tune-ups, or upgrades to keep your home cool and comfortable all summer long.

Indoor Air Quality Improvement

Breathe easy with our air duct cleaning, ventilation, and indoor air quality solutions. We sanitize ducts, install state-of-the-art humidifiers/dehumidifiers, and recommend air purifiers to remove allergens and pollutants. Let us optimize your indoor air for health and comfort.

Heat Pump Installation and Servicing

Heat pumps provide year-round heating and cooling in one energy-efficient system. Our technicians are experts at installing and servicing all makes and models. Trust us for repairs, annual check-ups, and upgrades to get the most out of your heat pump.

Boiler Repair and Installation

Get peak heating efficiency and reliability from your boiler with our professional installation, maintenance and repair services. We service all top brands and use cutting-edge diagnostics to evaluate performance. Trust us for tune-ups, upgrades, and emergency repairs.

Ductless Mini-Splits

Ductless mini-splits deliver focused, energy-efficient heating and cooling without ductwork. As licensed mini-split experts, we properly size and install high-end, cost-saving systems tailored to your space. Rely on us for repairs and maintenance.

Garage Heater Installation

Extend your garage's use with our professional garage heater installation and repair services. We help select appropriately sized, energy efficient systems to keep your garage comfortable year-round. Count on us for repairs and maintenance.

Water Heater Installation and Repair

Get reliable hot water with our professional water heater installation, maintenance, and repair services. We optimize performance and longevity for all top brands. Trust our licensed team for tune-ups, part replacement, and emergency repairs.

Thermostat Installation

Our technicians help select and professionally install programmable and smart thermostats for maximum efficiency and convenience. Let us set up the ideal temperature schedule and control preferences to suit your lifestyle and HVAC system.

Maintenance Plans

Invest in preventative HVAC maintenance and avoid expensive repairs. Our maintenance plans include regular tune-ups, priority service, and discounts to maximize system performance, longevity, and savings.

Quality Air Conditioning Service: The M.N. Difference

10+ Years Serving the Region

Since 2013, our family-owned business has taken care of local Northwest Indiana families. Need quality service when it comes to air conditioning installation services  St. John? Get in touch with us today!

Factory Certified Technicians 

Our team completes rigorous testing to be designated HVAC Excellence certified. You can be confident in our expertise.

Commitment to Your Satisfaction 

Our technicians go the extra mile and take personal pride in ensuring your 100% comfort and satisfaction with every job. We won't stop until you're happy.

Quality Products & Workmanship

Our family owned company uses and recommends only industry-leading, durable Armstrong equipment. Our work is done to exacting standards so you get long-lasting results.

Upfront, Competitive Pricing

You'll know the full price and what's included before we start. We offer very reasonable rates with no hidden charges.

Trusted Reputation

Numerous 5-star Google reviews from satisfied Northwest Indiana customers. We take pride in doing the job right the first time.

Availability When You Need Us

As a local company, we can respond rapidly for emergency repairs. Nights, weekends, holidays – we've got you covered.

Support Local Business

Choose M.N. Heating and Air for your HVAC needs and keep dollars right here in Northwest Indiana, supporting your community.

Current Promotions

Take advantage of our seasonal promotions:

  • 10% Off Repairs – Save on any heating or cooling repair over $250
  • $200 Off AC Replacement – Upgrade to a new Armstrong Equipment
  • $100 Off Furnace Installs – Time for a new, efficient furnace?

Offers valid through June 2024 and can't be combined with other discounts. Call today to schedule!

See What St. John Customers Say About M.N. Heating and Repair, Boiler repair AC or HVAC maintenance Service

"We've relied on M.N. Heating and Air  for over 20 years to keep our family comfortable through Northwest Indiana winters and summers. Their techs are so friendly and really take time to explain things." - Mark S.

"I'm thrilled with the ductless mini split system M.N. Heating and Air installed. It keeps my upstairs so comfortable without running the central air. Definitely recommend them for the great work and fair pricing." - Amanda D.

"The high humidity in my home was causing allergy issues for my son. M.N.'s humidity control system made a huge difference! Breathe easy now." - Karen P.

Frequently Asked Questions

The heating system in your home has a significant impact on the indoor air quality. If your system isn't regularly maintained, it may circulate dust, allergens, and other pollutants around your home which might affect your health. It's imperative that your system undergoes HVAC maintenance to ensure a clean and healthy indoor environment.

A ductless heater is not only capable of providing heat but it can also cool your home just like a central air conditioner. Its largest advantage is its energy efficiency – it uses less energy because it doesn’t have to push air through a network of ducts. Plus, installation is easier and quicker than a traditional heating and air conditioning system.

Your boiler may need a boiler repair service. Various issues can lead to inadequate heating, such as thermostat issues, low water level, or a damaged component in the boiler itself. Having a professional heating service provider inspect your boiler is the best way to properly identify and fix the problem.

The issue with your water heater might not directly relate to your heating and air system. However, they're both essential for providing comfort in your home. Your water heater might be experiencing a separate issue like a faulty heating element or sediment buildup at the bottom of the tank. Do give us a call for heating and air conditioning service.

Definitely! A heat pump is basically an air conditioner that can run in reverse to provide heat. They're very efficient but might not provide enough heating during extreme cold. A gas furnace, on the other hand, works by burning natural gas to produce heat. It's very effective for our Indiana heating needs due to its high efficiency.

There could be multiple reasons why your air conditioning is not cooling effectively. One common reason is a dirty air filter that is blocking air from moving through your system. Another issue could be a refrigerant leak. Your best bet is to get a professional air conditioning repair service to diagnose and fix the problem.

Repairing your air conditioning system can greatly enhance air quality. If your system is malfunctioning, it may not effectively remove moisture from the air, leading to a stuffy, uncomfortable environment. It might also circulate pollutants around your home. A simple repair or HVAC maintenance can have a significant impact on your home’s air quality.

An annual AC service is essential to ensure your commercial heating and air conditioning systems operate at their optimal efficiency. Regular services can catch small issues before they escalate into larger problems. Plus, they ensure your system is ready to provide reliable service, whether it's the hot summer or the chilly winter season in northwest Indiana.

Yes, it does! Different brands of central air conditioning and cooling systems offer different levels of energy efficiency, durability, and performance in st. john and crown point. Doing a little research or consulting with us can help you pick something that fits your exact needs and budget.

For an accurate assessment of your home's air quality, consider investing in a professional air quality evaluation. Indicators like humidity, temperature, the presence of allergens and harmful particles in the air will be evaluated. For an everyday evaluation and prompt air quality improvement, ensure clean filters, proper ventilation, and regular HVAC maintenance.

About St. John, Indiana

Nestled in the northwest corner of Indiana, St. John beckons with its charming blend of rural allure and urban accessibility. Once a quiet farming community, it has blossomed into a vibrant town offering the best of both worlds, attracting families, young professionals, and retirees alike.

Small-Town Charm with a Modern Touch

Step into the heart of St. John, and prepare to be transported to a scene straight out of a Norman Rockwell painting. Home to fantastic schools, gorgeous neighborhoods and beautiful churches, St. John is a wonderfully designed community.

But St. John isn't just about nostalgia. Modern amenities abound, ensuring residents have everything they need within reach. Top-rated schools provide excellent education, while healthcare facilities offer quality care. And for a touch of urban excitement, vibrant cities like Chicago and South Bend are just a short drive away.

Outdoor Adventures Galore

For those seeking an escape into nature, St. John doesn't disappoint. Lush parks nearby such as the Deep River County Park offer sprawling green spaces for picnics, hiking, and biking. Tee off at the nearby at the White Hawk Country Club Golf Club in the neighboring town of Crown Point, or take a leisurely stroll through scenic trails.

Cultural Delights and Historical Gems

St. John's rich history comes alive at the Willow Cottage Museum at the Center, where exhibits transport visitors back in time to the town's agricultural roots. You can also savor a delicious meal at one of the many locally-owned restaurants offering diverse culinary experiences.

A Thriving Community

St. John boasts a strong sense of community, with residents coming together for annual events like the St. John Summer Festival. Numerous clubs and organizations cater to diverse interests, fostering a spirit of camaraderie and inclusivity.

So, whether you're seeking a peaceful escape from the city's hustle and bustle, a family-friendly environment with excellent schools, or a convenient base for exploring the region, St. John, Indiana, has something for everyone. Come discover its charm, explore its hidden gems, and experience the warmth of its welcoming community. You might just find your new place to call home in this picturesque corner of Indiana.

Call us Today

Don't leave your family's comfort to chance. 

Contact the HVAC professionals at M.N. Heating and Air today!