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Complete Commercial HVAC/Mechanical Services, Dedicated to Energy Efficiency

Protect your investment with HVAC services designed to create comfortable, energy efficient environments. National HVAC Service mechanical services safeguard against downtime and premature equipment failure while keeping facilities safe and comfortable. Our experienced HVAC technicians play a vital role in the daily operations of facility productivity and efficiency.

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Contact Information

If you would like more information about our company or our services please use our information request form or call the office closest to you.

Phone Numbers

Northeast Branches

  • Seaford, DE (302) 629-9400
  • Wilkes-Barre, PA (570) 825-2894
  • Wilmington, DE (302) 323-1776

South Branches

  • Little Rock, AR (501) 565-7600
  • Memphis, TN (901) 345-5700
  • Nashville, TN (615) 331-8110

Office Addresses

Corporate Office

National HVAC Service
100 Bradford Road, Suite 120
Wexford, PA 15090

Branch Locations

9306 North Point Commons Boulevard
Seaford, DE 19973

1835 Nonconnah Boulevard, Suite 173
Memphis, TN 38132-2129

7123 Interstate 30, Suite 53
Little Rock, AR 72209

5 Pethick Drive, Unit 1
Wilkes-Barre, PA 18702-6946

5211 Linbar Drive, Suite 510
Nashville, TN 37211

42-A Southgate Boulevard
New Castle, DE 19720

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What to Look For in an HVAC Technician.

You don't want to put the long-term life and effectiveness of your HVAC equipment in the hands of just anyone. Qualified technicians are paramount to ensuring the longevity of your mechanical investment. In addition to being reliable, timely, prepared and professional, make sure to ask about training and experience.

How to Save Money With Energy Efficient Systems

We know the path to energy sustainability is a journey not an event. We partner with each client to analyze their utility bills, identify no-cost/low-cost savings opportunities, implement operations and maintenance practices and identify system upgrades and retrofits with a return on investment.

What goes into an HVAC System? Built Up system vs. Package (Unitary) system

Which one is right for your facility? See the difference and learn about the components each includes.

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