One Source For
Total Environmental

Heating, cooling, ventilation, and building automation systems are complex, essential components of any building whether it houses an office, a restaurant, retail store, school, elderly residents, or manufacturing operations.

At Service Unlimited, we specialize in providing commercial, industrial, and institutional customers top-notch design, installation, maintenance, and service of HVAC equipment and control systems.


Our Mission

Service Unlimited’s mission is to maintain our position as the number one provider of commercial, industrial, and institutional hvac services in the markets we serve.

Working as a team, our staff will earn this recognition by consistently providing a high level of professional service to our customers.

We are dedicated to being an organization focused on identifying our customer’s needs and then providing the most effective solutions that exceed their expectations.

Whether you’re planning a new building, renovating an existing one or are in search of maintenance or repair of your current systems, we provide the full range of mechanical services. Our goal is to ensure that your building environment is comfortable, efficiently operating and well maintained.

HVAC services in Delaware

Our Services Include

  • Preventative maintenance plans for HVAC equipment
  • 24-hour Emergency service for contract customers
  • Design, layout, planning, and installation of mechanical systems
  • Design, layout, planning, and installation of HVAC control systems
  • Air quality improvement solutions
  • Clean room design and installation
  • Not sure if we can help solve your problem? Call and ask – We are Service UNLIMITED!


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"Since 1997, Service Unlimited has completed over 20 jobs for Sanford School. These jobs entailed heating and air conditioning installations, start-ups, warranty service calls and the maintenance and repair of all systems. Service Unlimited, Inc. is a very dedicated and dependable company who has always gone over and beyond, with professional, accurate, prompt and personal service. I would recommend Service Unlimited to any business or organization. I am confident and have first hand proof, that every contract will be completed on time and to your satisfaction."

John Emery, Sanford School


American Society of Heating and Air Conditioning Associated Builders and Contractors, Delaware Refrigeration Service Engineers Society New Castle County Chamber of Commerce Central Delaware Chamber of Commerce

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