Heating, AC & Plumbing Services in Northville, MI

Northville homeowners have trusted Thornton & Grooms for their home service repairs and replacements since 1937. We built that trust by putting people before profits and delivering on our promises for unmatched customer service, workmanship, and value. Whether you need a drain unclogged, a furnace repaired, or an AC installed, the team at Thornton & Grooms is here for you.

We're open 6 days a week and have extended hours Monday through Friday. Call today and see why Northville homeowners rate us a 5-star service company!

Reliable Repairs & Replacements by Northville's Most Trusted Home Service Company

Hiring Qualified Professionals:

You'll enjoy working with our licensed experts from the first call to the final handshake.

Taking a Prevention-First Approach:

Annual maintenance is proven to save you money. So we prioritize check-ups over selling new systems.

Honoring Our We Care Guarantee:

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

Service Overview

Highest-Rated Home Service Professionals in Northville, MI

For 5-star plumbing, heating, and cooling service, turn to the licensed professionals at Thornton & Grooms! We'll have your visit booked in no time and give you a stress-free service experience from start to finish. We offer same-day service, upfront pricing, and great value on replacement parts for repairs. And when it comes to installations, you'll enjoy complimentary estimates, low-interest financing plans, and additional conveniences such as our online Comfort Survey, which can help you identify and price the perfect heating and cooling system for your home.

Service Details

How Can We Help You Today?

  • Heating Service in Northville

    Thornton & Grooms is trusted by hundreds of homeowners in Northville every year for heating repairs and replacements. We're the only contractor in town with a "We Care" Guarantee promising an unmatched customer service experience from start to finish. And we tend to complete most service visits in just one visit to your home, including most furnace and heat pump installations! Our inventory of heating systems is one of the largest in the state, and we can help you find the perfect system match during a complimentary estimate. You can even get started right now by taking our online Comfort Survey.

  • Cooling Service in Northville

    When temperatures soar, air conditioners break down. The licensed pros at Thornton & Grooms provide you with the great service you deserve. From AC installations and replacements to repairs, we provide honest diagnostics and upfront pricing for all AC makes and models. Our certified Replacement Specialists will walk you through your options and answer all of your questions without pushing for a sale. We're honest professionals working to help homeowners in Northville find the system best for their homes and budgets.

  • Plumbing Service in Northville

    Frozen pipes, clogged drains, and unresponsive water heaters are no match for the licensed professionals at Thornton & Grooms. We deliver fast and dependable plumbing services 6 days a week and have plumbers and drain technicians on call. You'll also enjoy convenient same-day service, great deals on new water heater systems, and some of the longest-lasting labor warranties in the state. So if you're looking for a plumbing contractor with convenient scheduling and an excellent reputation in Northville, look no further than Thornton & Grooms.

Home Care Club

Join the Home Care Club and Save on Home Services

Get lower monthly energy bills and avoid expensive A/C repairs by joining the Home Care Club. With bi-annual HVAC check-ups, our comfort specialists will catch small issues before they snowball into costly fixes. Plus, with yearly maintenance, you’ll keep your A/C equipment under warranty for as long as possible.

Additionally, plan members receive:

  • Markdowns on HVAC, plumbing, and drain repairs
  • Discounts on comfort system replacements
  • Extended warranties
  • Lower service fees
  • And more...


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

Made us feel like we were a priority…”

"They were respectful, courteous, and super helpful in our time of need. Thornton & Grooms made us feel like we were a priority. After several visits from other companies, they found the problem right away. We will never go anywhere else. Thank you from the bottom of our hearts."

-Shannon F. | Northville, MI

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Guarantees You Won't Find Anywhere Else

We promise to provide our customers with 5-star service—no matter what. If you are not satisfied with our level of service at any point, we ask that you inform us so we can make it right before we leave your home.

Real Guarantees
  • Professionalism

    We are a team of skilled, knowledgeable professionals who undergo regular training to provide top-notch service and solutions at a fair cost.

  • Reputation

    We truly care about providing 5-star service to our customers and our community. With thousands of Google reviews (we reply to each one!), it seems our customers agree.

  • Convenience

    We know customers already have enough to deal with, so we offer friendly and convenient service from the first call to our post-service process.

Schedule Your Home Service Visit in Northville with Thornton & Grooms Today