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(314) 845-1500

  • Home
  • Cooling
  • Services
  • Contact Us
  • Service Agreement
  • Winter Air Quality
  • Commercial Refrigeration
  • Heating
  • More
    • Home
    • Cooling
    • Services
    • Contact Us
    • Service Agreement
    • Winter Air Quality
    • Commercial Refrigeration
    • Heating

(314) 845-1500


  • Home
  • Cooling
  • Services
  • Contact Us
  • Service Agreement
  • Winter Air Quality
  • Commercial Refrigeration
  • Heating

Keeping you warm this winter

 For more than 50 years, Mertens Service  has helped homes warm up during the bitter cold winter months in St. Louis. For furnace installation and repairs or all your heating needs customers turn to our licensed and union-certified technicians every time. 

Heating

Residential Heating

big Heating projects

big Heating projects

Whether your home has gas or electric heat or even boilers and radiators.  We can recommend  the perfect system for your needs.  With over 50 years of experience  we have seen it all, and can get your system repaired or replaced while you get piece of mind. 

big Heating projects

big Heating projects

big Heating projects

We have the experience and training in Heating systems big and small.  Whether your system is a 100 year old or just put in by another company. We can fix your problem big or small and give you recommendation on the best course of action for the future. 

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