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Superior Value, High Efficiency.

General Info
Diversified Mechanical Services has served our customers in the Kelso, WA community for more than 30 years. Started by Carl Hendrickson in 1980, we have grown into serving the entire Lower Columbia area. We are your American Standard Comfort Specialists. We install and service residential and commercial heating and air conditioning systems. Some of the many reasons to choose us:
  • Residential and commercial sales and service
  • Over 30 years if caring customer service
  • Factory trained NATE certified technicians
  • Licensed, bonded and insured It is customer comfort and satisfaction that keeps Diversified Mechanical Services striving for superior quality and service. Our NATE certification guarantees we meet the highest performance standards in the industry and provide our customers with an optimally healthy indoor environment. Call Diversified Mechanical Services today to learn more!
  • Hours
    Regular Hours
    Mon - Fri:
    Sat - SunClosed
    Furnaces-Heating, Heat Pumps, Heating Contractors & Specialties, Heating, Ventilating & Air Conditioning Engineers
    • Air Conditioning Contractors
    • Certified HVAC Contractor
    • Air Conditioning Systems
    • Sales
    • Humidifiers
    • Furnaces
    • Indoor Air Quality Products
    • Electronic Air Cleaners
    Payment Options
    American Standard, Coleman, Commercial, Goodman, Residential



    NATE Certified Technicians Assures


    Financing Available

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    Data provided by one or more of the following: DexYP, Data Axle, Yext.