Diversified Mechanical Services, Inc


Diversified Mechanical Services offers high quality and affordable HVAC products to our customers in Kelso, Washington and the surrounding areas.

We sell and service brands like American Standard, Honeywell, Mitsubishi, Navien, Heat & Glo, and more! No matter what your heating and cooling needs might be, you can rest assured that our licensed technicians can take care of it.

Our advanced heating and cooling products include:

  • Heat Pumps
  • Furnaces
  • Whole House Air Filtration Systems
  • Communicating Air Conditioners
  • Tankless Water Heaters
  • Ductless Heat Pumps
  • Gas Fireplaces
  • Humidifiers
  • Touch Screen Thermostats
  • And More!
Hot Water Heater
American StandardHoneywellHeat & Glo



As you can see, we are dedicated to becoming your one-stop shop for superior HVAC products at competitive prices. We know you are sure to be satisfied with our products and services. For more information, contact us or call 360-577-6604 to schedule a free estimate!

What Sets Us Apart?

  • Our staff has one simple goal, from the moment you call or make and online appointment, we want to make you smile. We want to be your contractor of choice!
  • We offer the finest heating and cooling products in the industry. The performance, longevity, and efficiency of our products set the standard in the industry.
  • Many of our products are EPA Energy Star compliant. This means significant savings in both your energy bill and the amount of fossil fuels that are emitted into our atmosphere.

Join our family of satisfied customers today!