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With our many years of experience, we have developed an accurate and timely approach to the way we do business. From start to finish, your project will be managed by a knowledgeable team of professionals. Whether it’s the Project Manager, skilled laborer, or anyone in between, we have the expertise and are willing and able to meet a demanding or accelerated schedule.


Williams Plumbing and Heating has been involved in commercial projects throughout Montana and surrounding states for over twenty five years. Our reputation as the preferred mechanical contractor by engineers and general contractors is undisputed.

When you work with a company that has a proven track record and the financial strength and bonding capacity to back its guarantees, you can trust that company to give you exactly what you need.

Our procedures for handling commercial A.I.A. projects have been developed over many years of experience. When you choose Williams Plumbing and Heating for your project, you can expect an accurate and timely approach to our work from the presentation of bid documents to O&M manuals and owners instruction.

A knowledgeable team of field personnel consisting of project manager, superintendent, foreman and a licensed work force will see your project through from start to finish. Also, with a large and competent work force we can ensure that a demanding or an accelerated schedule is met.

With Williams Plumbing and Heating on site, your project managers and superintendents will soon have a level of confidence in our team that allows them the pleasure of devoting their energy elsewhere, and they can enjoy working with a mechanical contractor that does the job as it should be done.

Commercial Repair Services

  • Water Heaters
  • Faucets - Toilets - Sinks - Repaired or Replaced
  • Water - Sewer - Gas Lines
  • Garbage Disposals
  • Hot Water Heat - BOILERS
  • Forced Air Furnaces
  • Plumbing Fixtures - Remodels - Bathroom - Kitchen
  • Drain Cleaning - GEN EYE Camera
  • Electric to Gas Conversion
  • Frozen Pipes Thawed