Business Details
Emergency
services
Your Trusted HVAC Partner in Northwest Indiana
At KNZ Heating & Cooling, we bring over two decades of dedicated experience to the HVAC industry, prioritizing personalized service and technical excellence. As a family-owned business serving Northwest Indiana, we specialize in heating, cooling, and indoor air quality solutions tailored to residential and commercial needs. Our team of certified technicians delivers energy-efficient installations, proactive maintenance, and urgent repair services, emphasizing transparency and customer-centric care.With a 100% satisfaction guarantee, we ensure every client receives reliable support, from system diagnostics to whole-house optimization. Our commitment to innovation and integrity has earned us a reputation as a trusted partner for climate control solutions.
Services
AC Repair & Installation
Furnace Repair & Installation
HVAC Maintenance
Humidifiers
Ultra-Violet Lights
Indoor Air Quality
Water Heaters
Tankless Boilers
Hybrid Heat Pumps
New Construction HVAC
Highlights and features
- Family-owned with over 20 years of local expertise
- 100% satisfaction guarantee on all services
- Whole House Approach saves up to 50% on energy costs
- Repairs for all major HVAC brands covered
- 24/7 emergency service availability
Associations and certifications
- Trane
What people say
Fair pricing
Knowledgeable staff
Prompt service
24/7 availability
Energy savings
Services
AC Repair & Installation
Our AC services include installation of energy-efficient cooling systems, emergency repairs, and seasonal maintenance. We handle central air units, heat pumps, and geothermal systems, ensuring optimal performance. Technicians diagnose issues like refrigerant leaks or compressor failures, while new installations prioritize SEER ratings and proper sizing for long-term efficiency.
Furnace Repair & Installation
We service and install gas, electric, and hybrid furnaces, focusing on reliability and efficiency. Our team addresses common problems like ignition failures or heat exchanger cracks. New installations consider AFUE ratings and home layout, with options including Trane 96% modulating furnaces for precise temperature control and lower utility bills.
Indoor Air Quality
We improve indoor air quality through whole-house humidifiers, UV light sanitizers, and advanced air cleaners. These systems reduce allergens, control moisture levels, and neutralize pathogens. Our solutions meet American Lung Association guidelines, with features like self-regulating power supplies and antimicrobial filter coatings for sustained health benefits.
HVAC Maintenance
Our maintenance plans include bi-annual inspections, coil cleaning, and thermostat calibration. Technicians check refrigerant levels, electrical connections, and airflow efficiency. Regular service extends equipment lifespan, maintains manufacturer warranties, and prevents costly breakdowns during peak usage seasons for both residential and commercial clients.
Tankless Water Heaters
We install and service tankless water heaters that provide continuous hot water while reducing energy consumption. These systems heat water directly without storage tanks, ideal for homes with moderate to high demand. Our technicians optimize placement for minimal heat loss and integrate units with existing plumbing systems for seamless operation.
Questions
What are the signs I need HVAC repair?
Unusual noises, inconsistent temperatures, higher energy bills, or frequent cycling indicate potential HVAC issues requiring professional inspection.
How often should I schedule HVAC maintenance?
We recommend bi-annual maintenance (spring for AC, fall for heating) to ensure optimal performance and longevity of your system.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency service for urgent heating and cooling needs across Northwest Indiana.
What HVAC brands do you service?
We repair and maintain all major HVAC brands, including Trane, Carrier, Lennox, and Rheem equipment.
How can I improve indoor air quality?
Install whole-house air cleaners, UV lights, or humidifiers to reduce allergens and maintain healthy humidity levels in your home.
