About MacGregor

It all began in May of 1962 when John MacGregor bought Harris Plumbing and Heating in Harbor Springs. John, a Master Plumber and an apprentice set out to build a family owned business based on trust, doing exceptional work at a fair price and providing the finest in customer service and satisfaction.

Today, Julie Wieman is President of the company her late father started and has grown the company to include over 25 dedicated employees with 16 trucks. She has also opened a showroom filled with inspiring ideas for your home at two locations to provide the very best home comfort products and services. 

Over the years, more and more homeowners and businesses depended on MacGregor for all their plumbing, heating and cooling needs. As energy prices continue to rise we’ve added new services, products and technologies that use less energy, preserve our natural resources, are environmentally friendly and will help you and your family live better. As new energy efficient technology and products are developed we’ll be the first to introduce them to customers we proudly serve.



Things have changed a lot since 1962, but one thing remains the same . . . MacGregor is still family owned business built on trust, doing exceptional work at a fair price and provide the finest in customer service and satisfaction.

Call Anytime

What Your Neighbors Are Saying...

  • "David is very friendly and exceedingly pleasant. He has returned my call the last two times I have had questions about my Knight boiler. I am very impressed with his knowledge and his service on my Knight boiler. Thanks " Read More
    – David B.
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7