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50+ Years
experience
Emergency
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Trusted HVAC Services in St. John, IN
Founded in 1971, Lansing Heating & Air Conditioning has built a legacy of excellence in HVAC services across Chicagoland and Northwest Indiana. As a family-owned business, we prioritize personalized care, treating every customer like an extension of our family. Our team of NATE-certified technicians delivers expert heating, cooling, and air quality solutions, backed by decades of combined experience. We maintain an A+ rating with the Better Business Bureau, reflecting our commitment to transparency and customer satisfaction. As a Carrier Factory Authorized Dealer, we offer cutting-edge products and rigorous installation standards, serving residential and commercial clients with equal dedication.

Our veterans and first responders receive exclusive discounts, underscoring our community values. With 54 years of local expertise, we combine technical proficiency with ethical service practices. Our seasonal maintenance plans ensure optimal system performance, while our 24/7 emergency support addresses urgent needs promptly. We specialize in duct cleaning, energy audits, and custom HVAC solutions tailored to individual requirements. Through continuous training and innovation, we remain Chicagolands trusted partner for comfort and efficiency.
Services
HVAC Repair Air Conditioning Installation Heating Maintenance Duct Cleaning Air Quality Solutions Commercial HVAC Emergency Service Energy Audits Thermostat Installation Water Heater Repair
Details
  • Year established: 1971
Highlights and features
  • We offer 54 years of local HVAC expertise with family-owned reliability
  • Our technicians are NATE-certified for superior technical proficiency
  • Maintain A+ BBB rating with zero complaints since 1971
  • Provide exclusive discounts for veterans and first responders
  • Available 24/7 for emergency heating and cooling repairs
Associations and certifications
  • Better Business Bureau
  • Carrier Factory Authorized Dealer
  • North American Technician Excellence (NATE)
What people say
Excellent service Knowledgeable technicians Prompt emergency response Competitive pricing Personalized attention
Services
HVAC Repair
Our NATE-certified technicians provide prompt HVAC repairs for all makes and models. Using state-of-the-art diagnostic tools, we resolve heating and cooling issues efficiently while maintaining system longevity. Customers benefit from minimized downtime and restored comfort in residential and commercial spaces.
Air Conditioning Installation
We specialize in Carrier system installations, ensuring precise setup of new air conditioning units. Our process includes load calculations and ductwork evaluation to optimize energy efficiency. Homeowners receive manufacturer warranties and improved temperature control for enhanced comfort.
Duct Cleaning
Professional duct cleaning removes contaminants using Roto-Brush equipment, improving indoor air quality and system efficiency. This service reduces allergens and prevents HVAC strain, particularly beneficial for allergy sufferers and pet-owning households across Northwest Indiana.
Air Quality Solutions
We install air purifiers, humidifiers, and UV lights to address specific indoor air quality concerns. These Carrier-certified solutions target pollutants, moisture imbalances, and microbial growth, creating healthier environments while protecting HVAC equipment from premature wear.
Emergency Service
Our after-hours emergency service addresses urgent HVAC failures with rapid response times. Certified technicians handle critical heating and cooling breakdowns outside regular business hours, ensuring continuous comfort and safety for residential and commercial clients.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for heating, air conditioning, and air quality systems, including emergency services and duct cleaning.
Are your technicians certified?
All technicians are NATE-certified with specialized training in Carrier systems and EPA-certified for refrigerant handling.
Do you serve commercial clients?
Yes, we handle commercial HVAC systems including large-scale installations, maintenance contracts, and emergency repairs for businesses in Chicagoland.
What financing options are available?
We offer financing plans through Carrier with approved credit, including special promotions for high-efficiency equipment upgrades.
Are there discounts for first responders?
We provide exclusive discounts for active military, veterans, police officers, firefighters, and senior citizens on all services.
What are your service hours?
Regular business hours are Monday-Friday 7:30 AM - 3:30 PM, with 24/7 emergency service available outside these times.
Reviews (6)
Jody Freggens
Jun 13, 2022 Report
This team is absolutely amazing! Our 25 yo AC died suddenly, right before a heat wave. Not only were they able to make it out the same day we called (morning after it died), but they did a full assessment, gave us our options and recommendations. Ultimately we purchased a new unit through them, which they were able to get scheduled and installed asap (this happened Friday of Memorial day weekend, so the earliest install was the following Wednesday).

Since we had no AC, we were prioritized on the schedule. Their team of 3 came out for the install, were prompt in arrival and took all of 2-2.5 hours to remove our old one and install the new one. They were professional, friendly, prompt/efficient in their work, and cleaned up during/after. Highly, highly recommend for your AC needs. We're already planning/ saving for them to replace our furnace next year as that's got limited time left too. Definitely call Lansing Heating & Air Conditioning!
Laura
Mar 16, 2022 Report
Our heat went out overnight. We called at 6:45am and our call was returned by 7:15. Our professional service technicians were at our house by 9 and the house was heated before 11. Can't say enough about good things about the service and professionalism. Thank you Lansing Heating and Air! Service: Heating system maintenance
Sol Dominguez
Feb 18, 2022 Report
We had the pleasure of working with Rich he was definitely a great help and on time. Me and my fiance have a tight schedule for work and he still managed to accommodate us. Our could house was nice and toasty first thing in the morning and I was able to still make it to work on time. Services: Cleaning, Heating system repair
Sirius Blak
Dec 09, 2021 Report
Tim from Lansing Heating & Air Conditioning Inc. came out to do a cleaning of my furnace. Tim was on time, courteous, professional and very helpful. I let him know that I had done some some repairs to the furnace, replaced the humidifier filter and installed a hose from the humidifier to the drainage pipe prior to his visit. Tim assessed what I did, complimented me on what I did and provided helpful information on the proper maintenance of the furnace and humidifier moving forward.

He was also able to clean my furnace efficiently and checked for CO2 levels as well, which thankfully were not present. I really felt satisfied with Tim's work, professionalism, his constructive advice, the maintenance plan he recommended and the affordability of the services. I would recommend this company and the service Tim provided to anybody interested.
Stel Tablet
Nov 17, 2021 Report
Great people from Kelly in the office, to Todd-gave us an estimate, to the crew of Rob, Ben, and Corey. All were professional, explained things, helpful. The crew was on time. They were professional, and friendly. Answered all our questions, explaining things well. Nice work, nice cleanup. Pride in their work. We were very comfortable with them being in our home. We are now very comfortable with our new furnace and are confident we will be comfortable this coming summer with our new air conditioner. We are very pleased and would highly recommend this company and their staff. Thank you Lansing Heating & Air Conditioning.
Elaine Ericksen
Jun 06, 2021 Report
Their service is excellent. We have used them since we moved into this house 38 years ago. They recently installed a new air conditioner system and then replaced our heating system. This time we got on another plan for maintenance yearly. So happy we did. Scheduling is simple also the phone receptionist is friendly and accommodating. Rich and Todd are the best. Will answer all of your questions too. Thank you Lansing heating and air.