Business Details
50+ Years
experience
Emergency
services
Expert HVAC Installation & Repair in Germantown
Founded in 1973 by Gerald Kohnen, our company has grown from a one-person operation in a basement to a trusted HVAC leader serving residential and commercial clients across the Metro-East area. Our team of nine dedicated professionals includes technicians with degrees from Ranken Technical College, ensuring expertise in both residential and commercial HVAC systems. We specialize in tailored solutions, from energy-efficient installations to comprehensive maintenance contracts, prioritizing proper system sizing to optimize comfort and reduce energy costs.As a RUUD Pro Partner, we combine cutting-edge technology with family-owned values, delivering reliable service for over 50 years. Our commitment to quality extends to custom sheet metal fabrication and industrial air duct cleaning, addressing diverse client needs with precision and care.
Services
HVAC Installation
Air Duct Cleaning
Commercial HVAC Service
Residential HVAC Replacement
Custom Sheet Metal Fabrication
Refrigeration Systems
Geothermal Solutions
Ventilation Systems
Kitchen Exhaust Systems
Preventative Maintenance
Details
- Year established: 1973
Highlights and features
- We offer 0% financing for 18 months through Synchrony Bank.
- Our technicians hold HVAC degrees from Ranken Technical College.
- Family-owned since 1973 with 50+ years of combined industry experience.
- Comprehensive service covering residential, commercial, and industrial HVAC needs.
- Custom sheet metal fabrication capabilities for unique client requirements.
Services
Residential HVAC Replacement
We specialize in residential HVAC installations and retrofits, ensuring properly sized systems for optimal efficiency and comfort. With over 35 years of experience, we offer traditional central air systems and geothermal solutions tailored to homeowners' needs. Our team prioritizes energy savings and personalized service, helping reduce utility bills while maintaining indoor comfort.
Commercial HVAC Services
As a leading commercial HVAC provider in the Metro-East area, we design, build, and install systems for diverse facilities including schools, grocery stores, and water treatment plants. Our in-house capabilities ensure cost-effective, timely solutions for new constructions or upgrades, serving architects, engineers, and contractors with professional expertise.
Air Duct Cleaning
Our residential and commercial air duct cleaning service removes dust and grime buildup using industrial-strength equipment. This improves indoor air quality, reduces allergens, and maintains system efficiency. Most jobs complete before homeowners return, ensuring minimal disruption while delivering cleaner, healthier air environments.
Custom Sheet Metal Fabrication
Using state-of-the-art Vulcan Plasma Cutting technology, we create custom sheet metal solutions for HVAC components, guttering, and exhaust systems. Capable of working with multiple metals including stainless steel and aluminum, our union craftsmen deliver precision fabrication for both light and heavy gauge applications.
Refrigeration Systems
We service commercial refrigeration systems including Manitowoc ice machines, Follett units, walk-in coolers, and refrigerated display cases. Our expertise covers installation, maintenance, and repair of beer tappers, kitchen exhaust systems, and water filtration components for restaurants and retail businesses.
People
Gerald Kohnen
Founder
Gerald Kohnen founded the company in 1973, growing it from a basement operation to a respected HVAC leader. He continues to guide the business with over 50 years of industry experience, ensuring quality service and family values remain central to operations.
Ann Kohnen
Co-Owner
Ann Kohnen joined Gerald as a business partner, contributing to the company's growth into a full-service HVAC contractor. Her leadership helps maintain the company's commitment to personalized service and community-focused business practices.
Questions
Do you offer emergency HVAC services?
Yes, we provide emergency service. Call 618-523-4557 for immediate assistance with urgent heating or cooling issues.
What financing options are available?
We offer 0% financing for 18 months through Synchrony Bank, with a simple application process and fast credit decisions for qualifying customers.
What areas do you serve?
We serve residential and commercial clients across the Metro-East area, including Wood River, Granite City, Collinsville, Troy, and surrounding communities in Illinois.
Are your technicians certified?
All our technicians hold HVAC degrees from Ranken Technical College and receive ongoing training to stay updated on industry advancements and technologies.
What HVAC services do you provide for businesses?
We offer commercial HVAC design, installation, and maintenance services for schools, grocery stores, water treatment plants, and other facilities with customized solutions.
