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Claim This BusinessGladstone Heating & Cooling is a locally owned HVAC contractor operating in mid-Michigan, with Tim Gladstone at the helm. The company holds a perfect 5-star rating across 10 customer reviews, reflecting consistent delivery on service promises. Serving St. Johns and the surrounding Clinton County communities, the firm handles everything from emergency furnace breakdowns to planned cooling system replacements for residential homeowners.
What distinguishes Gladstone Heating & Cooling is a service-first mindset that extends well past the final invoice. Reviewers consistently note that Tim and his team follow up after installations to confirm systems are running correctly, responding to questions promptly even days or weeks later. Customer communication stands out as a differentiator in a trade where post-installation responsiveness often falls short.
Paul Bruman called on a corroded secondary heat exchanger, and Tim confirmed the failure and installed a new furnace within four hours the very next morning, hauling away the old unit and leaving the basement cleaner than before. Suzanne Evans needed a thermostat and furnace brought back online, and Tim arrived on schedule and resolved both issues efficiently. Mary Sherd received service within an hour of her call, with technician Brisn praised for professional manner and technical skill. Across these scenarios, homeowners report rapid response, competent diagnosis, and crews who treat customer homes with respect.
All 10 reviewers award 5 stars, with 3 specifically commending follow-up contact after installation and 2 noting same-day or next-day response during urgent situations. Technicians Tim and Brisn are named positively across multiple reviews for professionalism and technical skill.
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| ThursdayToday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Complete furnace installation with removal and disposal of the old unit, completed in a single visit.
New air conditioning system installation for residential homes, including heat pump and central AC options.
Installation of ductless mini-split heat pumps for targeted zone heating and cooling without ductwork.
Diagnostic and repair services for malfunctioning heating and cooling equipment, from thermostat issues to component failures.
Secondary heat exchanger diagnosis and replacement for gas furnaces showing corrosion or failure signs.
Smart and standard thermostat installation integrated with existing furnace and AC systems.