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HVAC Repair

Man Performing Gas Furnace Repair

Heating or Cooling Problem? We Can Help

When your furnace, heat pump, geothermal system or air conditioner stops working, you want someone who knows the equipment and shows up when they say they will. D. Miller Mechanical repairs all major heating and cooling systems for homes across Northeast Ohio.

We find the real cause of the problem, explain your options in plain language, and fix it right the first time.
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Our HVAC Repair Services

We repair every type of system we install:
  • Geothermal Repair: Diagnosis and repair of ground-source heat pumps, including loop, pump, airflow and refrigerant problems. Geothermal systems need technicians who know them, and they are one of our specialties.

  • Heat Pump Repair: Repairs for air-source heat pumps that are short-cycling, blowing cold air, icing up or running nonstop.

  • Furnace Repair: Gas and electric furnace repair, from ignition and blower problems to thermostats and airflow issues.

  • Air Conditioning Repair: A/C repair for systems that won't cool, leak water, make strange noises or keep tripping the breaker.
Call us at (330) 205-1874 to schedule a repair.
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Map of the DMiller Mechanical Service Area

Where We Provide HVAC Repair in Ohio

We repair heating and cooling systems for homeowners throughout Northeast Ohio, including:Not sure if you're in our area? Give us a call and we'll let you know.

Keeping Our Customers Comfortable & Happy

See what our customers have to say about us...
Over the years we've had the privilege to serve customers from Stark, Columbiana, Carroll, Mahoning, Portage, Tuscarawas and the surrounding Ohio counties. We appreciate all the friends we've made and the referrals we've received from our happy clients.

Check out our Google reviews, and leave us your own if you've enjoyed working with us.

D. Miller Mechanical, LLC IconD. Miller Mechanical, LLC

25299 Sandy Spring Rd, Minerva

5.0 22 reviews

  • Michael Bentfeld’s Avatar Michael Bentfeld ★★★★★ 5 years ago
  • James Charles’s Avatar James Charles ★★★★★ 6 years ago
    These guys are great! They removed my old beast of an oil furnace and replaced it with a high-efficiency natural gas unit. During the sales process, Dwight was very helpful in recommending … More options to save money. I would definitely hire them again!
  • Thom’s Avatar Thom ★★★★★ 5 years ago
    He went above and beyond very cold day and he made time to come a fix my furnace thank you D Miller
  • Rick Smith’s Avatar Rick Smith ★★★★★ a year ago
    Honest family run business,with a Christian witness to the community helping others offering a fair price and quality equipment.... blessings to you and keep up the great work....

Why Choose D. Miller Mechanical for HVAC Repair?

We've been keeping Northeast Ohio homes comfortable since 1992. As a family-owned company, we treat every repair like it's for a neighbor: an honest diagnosis, fair pricing, and no pressure to replace equipment that can still be repaired.

Because we install the same kinds of systems we repair, we know them inside and out, and that means faster, longer-lasting fixes.
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