What We Do

We're Raising the Bar

Thornton & Grooms has been keeping Detroit residents comfortable for decades, and we’re proud of that long-standing tradition. We strive to be the best and work hard to earn your trust and confidence. Every Thornton & Grooms employee is required to pass a thorough background check. Plus, we operate our business as a drug-free workplace requiring pre-employment and post-accident and injury drug testing. Whether we are replacing a comfort system in your home, repairing an existing system, installing a new water heater or clearing a clogged drain line, we hope you’ll consider us for all your heating, air conditioning, air quality, and plumbing needs.

Best of the best with no mess — We employ only the very best and highly skilled tradesmen. We will never send poorly trained personnel into your home, and we’ll respect your property by never leaving a mess. Your home will be as clean or cleaner than it was before we started. And rest assured, with 70+ years of business, we’ll be around to answer your calls before and after the work is completed.

What can you expect from us?

  • Dependable Service After the Sale
  • 7 Days a Week, 24 Hours a Day
  • Locally Owned and Operated Since 1937
  • Performance and Labor Guarantees
  • Fully Licensed and Insured
  • Service Technicians & Plumbers Available 24-7-365
  • Trust Certified Employees (Background Checks, Drug Screening, Extensive Training and Strict Code of Ethics)
  • Flexible payment options and financing

Please take the time to fill out our Customer Satisfaction Survey with any of your comments. We appreciate your honesty!

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