M.N. Heating and Air

Precision Heating and Cooling for Optimal Comfort


Welcome to M.N. Heating and Air, your trusted HVAC service provider proudly serving Lowell, IN and surrounding areas. For 10 years, our team of factory certified technicians have been delivering prompt, reliable heating and cooling installation, maintenance, and repair services to local homeowners and businesses.

Located at the Heart of Crown Point

M.N. Heating and Air

11820 Burr St.

Crown Point, Indiana 46307




We provide a full range of residential and commercial HVAC services:

Furnace Repair and Replacement

Our technicians are experts at diagnosing and repairing all makes and models of gas and electric furnaces. We can quickly identify any issue and make necessary repairs. If your outdated furnace requires too many costly repairs, we recommend replacement with a new high-efficiency model. Let our team handle the entire furnace installation process including gas line connections, ductwork modifications, permits, and startup. Investing in a new furnace provides reliable heat and pays for itself over time in utility savings.

Air Conditioner Installation

Is your current AC old, inefficient, and prone to breakdowns? We recommend upgrading to a brand new central air conditioning system properly sized for your home. Our AC installation pros will handle the full process including new ductwork, refrigerant lines, electrical hookups, permits, and everything else required. New Energy Star rated systems can cut your cooling costs substantially while keeping your home reliably comfortable all summer.

Indoor Air Quality Improvement

We offer complete indoor air quality solutions including:

  • Air duct deep cleaning to eliminate built-up allergens
  • Advanced air purification systems
  • Whole-home dehumidification systems
  • ERV/HRV ventilation systems
  • And more!

Breathe easier with our full range of air quality services. We can customize a plan to enhance the air in your Lowell home.

Heat Pump Installation and Servicing

Heat pumps provide efficient heating and cooling from one dual-purpose system. If your current heat pump fails or requires frequent repairs, we recommend replacement with a new properly sized unit. We are certified installers of today's most advanced heat pumps from leading brands. We also service existing heat pumps to keep them operating at peak efficiency.

Boiler Repair and Installation

Boilers provide hydronic heating using hot water or steam circulated through radiators or in-floor systems. Our technicians are fully trained and licensed to repair, maintain, and install boilers from every major brand. We can quickly get faulty boilers up and running while maximizing efficiency to reduce fuel costs.

Ductless Mini-Splits

Ductless mini-split systems provide targeted heating and cooling without ductwork for additions, garages, renovated attics, remote rooms and more. As certified mini-split installers, we offer a full selection of ductless options from brands like Mitsubishi and Comfort Aire. Enjoy flexible, affordable zone heating and cooling!

Water Heater Installation and Repair

In addition to HVAC, we also offer complete water heater services. We repair and install tank, tankless and hybrid models plus handle all plumbing connections. Enjoy endless hot water while saving on energy bills!

Thermostat Installation

Ensure optimal temperature control with new thermostat installation. We provide smart WiFi thermostats with remote access, zoning, scheduling, and advanced features to maximize efficiency.

Maintenance Plans

Proper maintenance ensures your HVAC and plumbing systems continue operating at peak performance. Our maintenance plans include:

  • Annual furnace and AC tune-ups
  • Bi-annual heat pump maintenance
  • Drain cleaning and preventative maintenance
  • And more!

Routine maintenance prevents costly breakdowns and keeps your systems running efficiently. Our maintenance plans provide peace of mind year-round.

Commercial HVAC

In addition to residential customers, we also serve small Lowell businesses with their unique HVAC needs including:

  • Rooftop units, chillers, boilers, furnaces, air handlers
  • Multi-zone climate and building automation systems
  • New equipment installations
  • Preventative maintenance programs
  • 24/7 emergency repair service

We have the experience, training, and equipment to expertly service commercial HVAC systems of any size. Contact us for professional heating and cooling assistance!

24/7 Emergency Heating and Furnace Repairs

We understand heating and cooling disruptions happen anytime. Count on our 24/7 emergency team for urgent issues like:

  • Total furnace or AC failure
  • Frozen or burst pipes
  • Dangerous CO leak
  • Strange electrical smell
  • And any heating or cooling emergency!

Our after-hours technicians are always on standby for prompt diagnosis and repairs anytime day or night. Never hesitate to call!

Why Properly Maintaining Your Air Conditioner is Important

Proper AC maintenance not only prevents breakdowns, it also saves you money on energy bills. Our annual tune-ups help in several ways:

  • Clean coils operate more efficiently
  • Optimized refrigerant levels reduce electrical load
  • Tighten connections to prevent dangerous gas leaks
  • Ensure condensate drains are clear to prevent water damage
  • Calibrate digital controls for proper temperature regulation
  • Identify and replace worn parts before they fail
  • Maximize system lifespan through years of use

Routine AC maintenance provides big returns for a small time investment. Keep your system running strong with our tune-up service.

Benefits of Installing a New Furnace

Upgrading an aging, inefficient furnace provides many benefits including:

  • Latest Technology - Enhanced comfort, efficiency, reliability and safety
  • More Efficient -Lower utility bills through modern 90%+ AFUE ratings
  • Less Noise - Insulated cabinets keep sound levels low
  • Enhanced Temperature Control - Programmable thermostats optimize heating
  • Improved Air Quality - Integrated air filtration for cleaner air

Investing in a new furnace maximizes performance and savings. Talk to our team about replacements that make sense for your home and budget. We provide free estimates.

Why Choose Us?

You have many HVAC companies to choose from. Here’s what sets us apart:

Clean Guarantee- We thoroughly clean and sanitize your home after every visit. You won't find stray debris we left behind.

Flat-Rate Pricing- Upfront pricing means no surprise add-ons halfway through a job. The price we quote is the price you pay.

Licensed, Bonded, Insured- We carry all required licenses and insurance for your peace of mind. You're protected when choosing us.

Trusted Technicians- Backed by thousands of satisfied customers across the region. Read our rave reviews.

For affordable, quality service you can trust, choose the HVAC experts with a proven reputation.

HVAC Licenses and Certifications

Our knowledgeable technicians are factory certified and all required state licenses:

  • Indiana HVAC License - Legally required for contractors
  • EPA 608 Certification - Required for handling refrigerants
  • Factory Certified - Industry recognized expertise standard
  • Regular manufacturer training - To service all equipment brands

We invest heavily in technician training and certification so you can be confident in our expertise.

We Service All Brands

While we specialize in Armstrong, we have the expertise to service any brand. We keep trucks stocked with parts for most common systems. Brands we repair include:

  • Lennox
  • Rheem
  • York
  • Bryant
  • American Standard
  • Aprilaire
  • Honeywell
  • And more!

Trust us for professional service regardless of your equipment make or model.


We rely on referrals and repeat business. Read reviews from happy clients in Lowell and beyond:

  • "Their technicians are true professionals and provide great service"
  • "Saved me money through boiler repairs over replacement"
  • "New AC keeps me cool and energy bills low"
  • "Prompt emergency furnace repair saved me from freezing"
  • "Friendly staff and fairly priced - my go-to HVAC company"

Service Areas

In addition to Lowell, we proudly serve Northwest Indiana regions including:

  • Crown Point
  • St. John
  • Schererville
  • Dyer
  • Merrillville
  • Griffith
  • Highland
  • And more!

Contact us today to experience quality service from the heating and cooling leader in the region. Call anytime!

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!


Nestled alongside the tranquil banks of the Iroquois River in northwestern Indiana lies Lowell, a charming town rich in history and industry. Founded in 1836 as a canal town, Lowell quickly became a center for manufacturing and innovation, earning it the nickname "The City of Industry."

A Legacy of Innovation

Lowell's industrial past is still evident today in its well-preserved historic buildings, many of which have been repurposed into vibrant shops, restaurants, and art galleries. The Lowell National Historic District, a designated area showcasing the town's architectural heritage, is a must-see for history buffs.

Outdoor Escape and Artistic Delights

Beyond its industrial roots, Lowell offers a wealth of outdoor recreation opportunities. The scenic trails along the Iroquois River provide ample space for hiking, biking, and fishing. And for those seeking a dose of culture, the town boasts a thriving arts scene, with theaters, galleries, and studios showcasing the talents of local artists.

Family-Friendly Charm

Lowell's strong sense of community is evident in its numerous family-friendly events, such as the annual Lowell Labor Day Festival and the Christmas Tree Lighting ceremony. The town also boasts a top-rated school system and a variety of parks and playgrounds, making it an ideal place to raise a family.

Convenient Location and Beyond

Despite its small-town feel, Lowell is conveniently located just 45 miles southeast of Chicago, offering easy access to the Windy City's vibrant culture and amenities. And for those seeking weekend getaways, Indianapolis and Lake Michigan are both within a short drive.

Our company provides a wide range of air conditioning services in Lowell such as AC repair, AC installation, and regular preventive maintenance for your air conditioning system. We also offer services to improve the indoor air quality in your home.

 Yes, our heating and air conditioning repair service cover the Lowell area as well as surrounding communities like Cedar Lake, Northwest Indiana, and others. Just call us to book a service.

Yes, we understand that AC problems can happen at any time. Our team is ready to handle Saturday night repairs ensuring that your home’s heating and air conditioning system is running smoothly.

Yes, we provide home service for AC unit repair in Lowell and surrounding areas. Our experts can handle every type of AC unit issue from minor adjustments to major repairs.

Absolutely! If your current system is past its expected lifespan or constantly needing repairs, it might be time for a new AC unit. We offer a range of the finest heating and air conditioning systems from Armstrong Air.

Our heating services include heating repair, new furnace installation, heating system maintenance, and boiler services. We also can help you choose and install a new water heater if needed.

Yes, our home service team provides comprehensive heating repair in Lowell and all over Northwest Indiana. You can rely on us to keep your home's heating system in perfect condition.

Unlike typical Lowell plumbers, our company specializes in both heating and air conditioning systems. This includes everything from boiler services to air conditioning repair. More so, our expertise covers various brands and types of heating and cooling systems.

Yes, apart from our heating and air conditioning services, we also offer indoor air quality service. This is to ensure not just the right temperature in your living spaces but a healthy indoor environment for you and your family as well.

Regular maintenance is key to ensure that your furnace and air conditioner are always in top shape. At our company, we offer regular air conditioning service and heating system maintenance so you won't have to worry about your home's heating and cooling needs.

Call us Today

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

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