Heating System Replacement Company in St Louis, MO

As your heating system ages, it can lose efficiency or stop working altogether. If you're in need of a new heater, the company to turn to in St. Louis is Mertens Service Inc.

We'll Keep You Warm

At Mertens Service Inc., we provide the highest level of quality in all our heating system replacement work, and all jobs are performed by highly-experienced contractors you can trust. When you work with us, you'll benefit from our wide selection of heating system models and affordable pricing. And because we value our customers, we strive to achieve 100 percent client satisfaction on every job.

If your heating system is on its way out, one call to Mertens Service Inc. is all it takes to get the ball rolling on installing a new one. So don't wait for the cold to set in. Call us today to schedule an estimate.

Why Choose Mertens Service Inc.?

  • Financing Available
  • 100% Guaranteed Work
  • High Quality Work
  • Free Estimates On Installs & Replacements
  • Locally Owned & Operated
  • Factory Trained And Authorized
  • Licensed In All Areas Serviced