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Heating, A/C & Plumbing Experts in Farmington Hills, MI

Doing What's Right to Bring Comfort to Your Home

Serving the Metro Detroit community for over 80 years, Thornton & Grooms puts people before profits with:

Qualified Professionals

From the first call to the final handshake, you'll enjoy working with us.

Prevention-First Approach

Annual maintenance matters more to us than selling new systems.

We Care Guarantee

Showing we care by guaranteeing our professionalism, reputation, and convenience each day.

Comfort Protection

Join Metro Detroit's Most Popular Maintenance Plan!

Join over 10,000 others who have experienced Thornton & Grooms' Home Care Club. Benefits include:
  • Regular tune-ups for all home comfort systems
  • Discounts on common HVAC & plumbing repairs
  • Longer parts & labor warranties

...and much, much more!

About Us

Why choose us...

  • Wrench Icon

    For Your Next Service Call

    An unwavering focus on people guides every action we take at Thornton & Grooms. That's as true today as it was in 1937 when we took our first service call.

  • Calendar Icon

    For Your Next Career

    We extend the same kindness to our team members as we do to our customers. If you're a professional looking to make a difference in people's lives, we're the company for you.


Celebrating 85+ years of service in the great state of Michigan

"Really pleased with the service and pricing..."

"We've been using T&G for years for our heating, cooling and plumbing. We've been really pleased with the service and pricing. David B. did an excellent job installing our two new furnaces and thermostats and has provided excellent service in maintaining them."

-Kay K.

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Ready for Service That Puts You First?