Business Details
23 Years
experience
Emergency
services
Your Trusted National HVAC Partner
National Air has been a trusted leader in commercial HVAC services since 2003, delivering nationwide solutions for businesses across healthcare, retail, hospitality, and industrial sectors. With over 70 years of combined industry experience, our team specializes in creating customized HVAC plans that reduce costs, extend equipment lifespan, and ensure operational continuity. Our proprietary network of licensed professionals spans all 50 states, Canada, Puerto Rico, and Guam, enabling rapid response times and consistent service quality. We differentiate ourselves through transparent pricing models, proactive maintenance strategies, and dedicated account management that prioritizes client needs over equipment replacement cycles. Our engineering expertise handles complex installations and code-compliant replacements while maintaining strict budget controls.Temporary heating and cooling solutions guarantee business continuity during emergencies, with delivery available within 2-4 hours. Client testimonials consistently highlight our exceptional communication, cost savings exceeding industry averages, and the ability to service remote locations effectively. Our executive team combines technical mastery with decades of field experience, ensuring every service call delivers measurable value. We maintain rigorous quality control through contractor performance reviews and standardized service protocols. This commitment to excellence has earned us long-term partnerships with clients who value reliability, expertise, and ethical business practices.
Services
HVAC Maintenance
Equipment Installation
Emergency Repairs
System Design
Temporary Units
Details
- Year established: 2003
Highlights and features
- We offer 70+ years of combined HVAC industry experience across all climate zones
- Our proprietary contractor network ensures service availability in all 50 states
- We guarantee transparent, audited pricing with no hidden fees
- We provide 24/7 emergency response with same-day service availability
- Our customized maintenance plans reduce HVAC costs by up to 40%
What people say
Significant cost savings
Professional and harmonious
Under budget and on schedule
Reduced breakdowns
Exceptional communication
Services
HVAC Preventative Maintenance
Our customized maintenance plans extend equipment lifespan while reducing repair costs by up to 40%. Technicians perform system-specific tasks that maintain manufacturer warranties and optimize energy efficiency. Clients receive detailed service reports and priority scheduling for all maintenance-related repairs.
Emergency HVAC Repairs
Nationwide network ensures same-day technician dispatch for critical HVAC failures. Our triage system prioritizes life-safety issues and business continuity needs. All emergency repairs include upfront pricing and post-service documentation for insurance purposes.
HVAC System Installation
We coordinate full system replacements with code-compliant installations across all climate zones. Our engineers verify equipment specifications match facility requirements. Projects include startup testing, operator training, and extended warranty options through manufacturer partnerships.
Temporary Heating/Cooling
Mobile units deploy within 2-4 hours to maintain operations during system failures. Our partnership with United Mobile Heating & Cooling provides industrial-grade equipment with flexible rental terms. Units integrate seamlessly with existing HVAC infrastructure.
HVAC Engineering & Design
Our engineers develop energy-efficient HVAC designs for new construction and retrofits. Services include load calculations, duct design, and equipment specification. We coordinate with local authorities to ensure code compliance and provide as-built documentation for all projects.
People
Katie L. Dewar
President
Katie transitioned from commercial property management to HVAC leadership, earning technical certifications while managing national accounts. She oversees strategic operations and client relations, combining real estate expertise with hands-on HVAC knowledge to develop client-focused solutions.
Rich Bielak
Principal
With 30+ years in HVAC, Rich founded NAC after identifying industry gaps in national service reliability. He developed the company's ethical business model focused on equipment longevity rather than replacement cycles, maintaining active involvement in client strategy.
Tom Bielak
Executive Vice President
Tom leads technical operations with union-certified HVAC expertise and Carrier Controls certification. He manages field operations and quality control, ensuring service consistency across the national network while maintaining hands-on industry engagement.
Questions
What HVAC services do you offer for multi-location businesses?
We provide nationwide maintenance, repairs, installations, and emergency services for commercial clients with 2+ locations across North America.
How do you ensure consistent service quality across different regions?
Our proprietary contractor network undergoes rigorous vetting, with performance monitored through client feedback and technical audits.
What sets your pricing model apart from competitors?
We guarantee transparent pricing with no hidden fees, including upfront cost estimates before any service begins.
Do you handle HVAC emergencies outside regular business hours?
Yes, our 24/7 service team dispatches technicians for urgent issues and provides temporary climate control solutions.
How do preventative maintenance plans benefit commercial clients?
Our plans reduce repair costs by 30-40%, extend equipment lifespan, and maintain energy efficiency through regular professional servicing.
What industries do you specialize in?
We serve healthcare facilities, retail chains, hospitality venues, and industrial operations with customized HVAC solutions.
