Business Details
50+ Years
experience
Trusted HVAC Equipment Supplier in St. Louis
NSC APG, a division of NSC, has been a trusted leader in HVAC equipment distribution for 76 years. As a third-generation company headquartered in St. Louis, Missouri, we specialize in providing innovative residential and commercial HVAC solutions across Missouri, Kansas, and Southern Illinois. Our comprehensive product portfolio includes ductless systems, variable refrigerant flow (VRF) equipment, outside air systems, unitary splits, rooftops, multifamily HVAC units, and advanced controls.We prioritize technical excellence, offering design assistance, contractor training, startup support, and diagnostics to ensure seamless project execution. Our commitment to quality is reflected in our partnerships with top-tier manufacturers like Samsung and our dedication to customer satisfaction. With a legacy of reliability and expertise, we empower contractors and building owners with cutting-edge HVAC technologies tailored to their unique needs.
Services
HVAC Equipment Sales
VRF Systems
Ductless Solutions
Commercial HVAC
Residential HVAC
Design Assistance
Technical Support
Training Programs
Commissioning Services
Equipment Installation
Details
- Year established: 1947
Highlights and features
- We offer 76 years of expertise in HVAC equipment distribution.
- Our team provides technical support for complex system installations.
- We partner with leading manufacturers like Samsung and Addison.
- Our solutions prioritize energy efficiency and long-term reliability.
- We serve Missouri, Kansas, and Southern Illinois with local expertise.
What people say
Superior customer service
Reliable solutions
Prompt support
Services
VRF Systems
NSC APG offers advanced variable refrigerant flow (VRF) systems for commercial and residential applications. These energy-efficient systems provide precise temperature control, reduce utility costs, and integrate seamlessly with building designs. Our Samsung DVM S2 systems feature AI-driven monitoring and modular scalability up to 40 tons, ensuring optimal performance for projects of all sizes.
Ductless Solutions
Our ductless HVAC solutions deliver zoned comfort without extensive ductwork. Ideal for retrofits or modern homes, these systems combine sleek indoor units with high-efficiency outdoor condensers. Samsung Eco VRF and Smart Whisper Mini-Splits ensure quiet operation, energy savings, and customizable climate control for residential and light-commercial spaces.
Commercial HVAC
NSC APG provides comprehensive HVAC systems for commercial facilities, including rooftop units, dedicated outdoor air systems (DOAS), and modular chillers. Our solutions enhance indoor air quality, meet ASHRAE standards, and support LEED certification goals. We offer design-assist services and technical expertise to ensure compliance with project-specific requirements.
Technical Support
We deliver end-to-end technical support for HVAC installations, including design calculations, commissioning, and diagnostics. Our team collaborates with engineers and contractors to optimize system performance, troubleshoot challenges, and ensure seamless integration with building infrastructure, guaranteeing long-term operational efficiency.
Training Programs
NSC APG offers specialized training for HVAC professionals on system design, installation, and maintenance. Our programs cover VRF technology, DOAS applications, and energy-efficient best practices, equipping contractors with the expertise to deliver high-performance solutions aligned with industry standards.
Questions
What HVAC products does NSC APG specialize in?
We specialize in ductless systems, VRF technology, rooftop units, DOAS, and controls from brands like Samsung, Addison, and TempMaster.
Do you serve residential and commercial clients?
Yes, we provide tailored HVAC solutions for both residential and commercial projects across Missouri, Kansas, and Southern Illinois.
Can you assist with HVAC system design?
Our team offers design-assist services, including load calculations, equipment selection, and technical guidance for optimal system performance.
Are your systems energy-efficient?
Yes, our products prioritize energy efficiency, featuring high IEER ratings, heat recovery, and smart controls to reduce operating costs.
Do you offer technical training for contractors?
Yes, we provide training programs on HVAC system design, installation, and maintenance to support industry professionals.
