Count On Us for Comfort!

Heating – Air Conditioning – Commercial Refrigeration – Sheet Metal Fabrication – Plumbing

Professional HVAC, Commercial Refrigeration, Sheet Metal Services, & Plumbing

At Gundlach Sheet Metal Works, we bring over a century of expertise to provide unmatched HVAC, commercial refrigeration, sheet metal fabrication, and plumbing services in Sandusky, OH. Established in 1889, our family-owned and operated business has built a reputation on reliable service, quality craftsmanship, and exceptional customer care. Whether you need expert HVAC solutions, indoor air quality improvements, or custom sheet metal fabrication, our team is ready to assist with services that ensure comfort and efficiency in every space.

A person is working on an air conditioner with gauges attached to it.

Comprehensive Commercial Services

We understand that businesses need reliable systems to keep operations running smoothly. Our commercial services are designed to meet the unique needs of every business, big or small. From HVAC systems to refrigeration solutions, our expert technicians provide a range of services to keep your commercial space comfortable and efficient.

A man is working on an air conditioner on a ladder.

HVAC Installation, Maintenance, & Repairs: Our team ensures your commercial HVAC system is expertly installed, regularly maintained, and swiftly repaired when needed.

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A fan is mounted to a concrete wall.

Fire Damper Inspections: Safety is critical, so we offer fire damper inspections to ensure your building meets safety regulations and requirements.

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A ceiling with a lot of pipes and lights hanging from it.

Commercial Refrigeration: From installation to maintenance, we provide professional refrigeration services tailored to your business needs.

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A large roll of aluminum is being rolled on a machine in a factory.

Custom Sheet Metal Fabrication: We create custom sheet metal solutions to improve ventilation and air quality across your commercial property.

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Reliable Residential Solutions

Keeping your home comfortable and efficient year-round is our priority. Our residential services cover everything from HVAC installations to plumbing, ensuring your home's systems work at their best.


  • Heating & Cooling Installation, Maintenance, & Repairs: Our experienced technicians handle all HVAC needs, ensuring your home stays comfortable in every season.
  • Indoor Air Quality Improvements: We provide air purifiers, humidifiers, and filtration systems to enhance the air quality in your home for a healthier environment.
  • Smart Thermostats: Take control of your home's comfort with smart thermostat installation, allowing you to monitor and adjust temperatures remotely.
  • Residential Plumbing: Our plumbing services cover everything from repairs to fixture installations, keeping your home's water systems running efficiently.

Why Choose Gundlach Sheet Metal Works?

When you choose Gundlach Sheet Metal Works, you're working with a company that goes above and beyond. As a Carrier Factory Dealer, our team is fully trained and highly skilled, bringing expertise and dedication to every job. Our commitment to quality and customer satisfaction has earned us the Carrier Presidential Award and a place in the Carrier Dealer Hall of Fame.

Experienced Service Technicians: Our technicians are equipped to not only address current issues but also provide solutions that increase efficiency and reduce future repairs.

Family-Owned & Operated Since 1889: With over 130 years of experience, our family-owned business understands the value of dependable service and long-term relationships with our clients.

Award-Winning Service: Recognized with Carrier's top honors, our team is dedicated to providing exceptional service and quality results every time.

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    ★★★★★

    Excellent job!!  We had central air conditioning installed in our guest house and we couldn't be more pleased with the workers, workmanship and quality of the system.  Very professional and easy to work with.  We highly recommend Gundlach for any HVAC needs.  Thank you!

    - David S.

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    ★★★★★

    Excellent work by the Gundlach team of Lou & Devon.  I can't be happier with their craftsmanship.  They obviously take pride in their work.  We had a new Combi-Boiler installed which replaced an old failing boiler unit.  The previous pipe work was like a plate of spaghetti.  The photo of the new work shows the excellent craftsmanship.  They answered all of our questions and were very professional.  I would not hesitate to use Gundlach again.

    - Rusty P.

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  • ★★★★★

    Gundlach's are always courteous, professional, and friendly. Wouldn’t let anyone else service the boiler in our historic home.

    - Veronica D.

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  • ★★★★★

    Your tech, Devin Daniel, was very professional.  He answered all my questions and did a first-class job!  Will request him on further jobs. Rick & Kathy

    - Rick M.

  • Slide title

    ★★★★★

    Shout-out to Bob and Devon, awesome guys, very professional and they know their stuff. Showed up early, got my new central air installed. They even called the office and told them we didn't need this certain part and the office called me that same morning to tell me that they are knocking $150 off my bill because of that. That cinched it for me, honest guys and company. Will definitely be a repeat customer, honest and timely, very happy with the whole process.

    - Jennifer F.

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  • Slide title

    ★★★★★

    Excellent job!!  We had central air conditioning installed in our guest house and we couldn't be more pleased with the workers, workmanship and quality of the system.  Very professional and easy to work with.  We highly recommend Gundlach for any HVAC needs.  Thank you!

    - David S.

    Button

  • Slide title

    ★★★★★

    Excellent work by the Gundlach team of Lou & Devon.  I can't be happier with their craftsmanship.  They obviously take pride in their work.  We had a new Combi-Boiler installed which replaced an old failing boiler unit.  The previous pipe work was like a plate of spaghetti.  The photo of the new work shows the excellent craftsmanship.  They answered all of our questions and were very professional.  I would not hesitate to use Gundlach again.

    - Rusty P.

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  • ★★★★★

    Gundlach's are always courteous, professional, and friendly. Wouldn’t let anyone else service the boiler in our historic home.

    - Veronica D.

    Button

  • ★★★★★

    Your tech, Devin Daniel, was very professional.  He answered all my questions and did a first-class job!  Will request him on further jobs. Rick & Kathy

    - Rick M.

  • Slide title

    ★★★★★

    Shout-out to Bob and Devon, awesome guys, very professional and they know their stuff. Showed up early, got my new central air installed. They even called the office and told them we didn't need this certain part and the office called me that same morning to tell me that they are knocking $150 off my bill because of that. That cinched it for me, honest guys and company. Will definitely be a repeat customer, honest and timely, very happy with the whole process.

    - Jennifer F.

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Contact Us for Expert Services

For professional, dependable HVAC, refrigeration, sheet metal fabrication, or plumbing services, Gundlach Sheet Metal Works is your trusted choice. Our team is ready to deliver the best solutions for your home or business. Contact us today to schedule a service or consultation.

(800) 953-4525