Customer Testimonials:

"National Metal Works installed a high efficiency furnace and air conditioner into my home. It's a great system at a good price". Jack R.
"We have National Metal Works perform all of our heating and airconditioning needs at our business and at our home". Tim F.


National Metal Works

Our Products

Indoor Air Quality

Energy Star


Nothing affects your home life more than air comfort and air quality. That’s why we’ve specialized in both for more than 25 years.


We are the Rockford area’s leading contractor in designing, installing, maintaining and repairing residential heating and air conditioning systems. You also benefit from our expertise in air quality systems.


For over 25 years National Metal Works, Inc. has been earning the trust of homeowners and businesses throughout the Greater Rockford area. We specialize in:


and invite you to personally experience the professional service and value offered to each of our customers. For a closer look at the range of services and products we offer, please explore our website or simply give us a call.

  • Over 25 years of experience in HVAC installation and service.
  • Service all major brands of furnaces, air conditioners and heat pumps
  • Real estate inspections
  • Free estimates
  • Residential heating and cooling
  • Commercial heating and cooling
  • Light commercial heating and cooling
  • Industrial heating and cooling
  • Fully insured
  • Financing available
  • Planned service agreements available
  • Commercial Kitchen Exhaust Hoods