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!









