Our Services

Commercial & Residential HVAC, Refrigeration & Equipment Solutions

At DHN Building Maintenance LLC, we provide expert service, repair, installation, and preventative maintenance for commercial and residential systems across Franklin County and surrounding areas. With over 25 years of field experience, we ensure your equipment operates efficiently, safely, and reliably.

Rooftop HVAC unit next to a vent, a worker in safety gear, and a cloudy sky.
A technician uses a clamp meter on refrigeration equipment with yellow and blue tubing in a gray setting.

Commercial & Residential HVAC

We provide complete heating and air conditioning services for both commercial and residential properties. From system diagnostics and repairs to full equipment replacements and new installations, we service all major HVAC brands including Trane, Bryant, Carrier, and Lennox. Our goal is to ensure reliable comfort, energy efficiency, and long-term system performance for homes, restaurants, and commercial facilities.

A person holds a black and blue thermometer, displaying 34.4, in a storage room with cardboard boxes.

Walk-In Cooler / Walk-In Freezer (WIC/WIF) Refrigeration

We specialize in servicing and repairing walk-in coolers and freezers to keep your inventory safe and at proper temperatures. Whether you’re experiencing temperature fluctuations, compressor issues, or system failures, we provide fast diagnostics and dependable repairs for refrigeration systems including Bohn and Trenton units.

A Taco Bell kitchen with stainless steel equipment and a drink dispenser.

Commercial Cooking Equipment

We provide comprehensive and professional repair and maintenance services for a wide range of commercial kitchen equipment, ensuring that your restaurant operates efficiently and safely at all times. Our experienced technicians are dedicated to minimizing downtime and maximizing the performance of your kitchen appliances, allowing you to focus on delivering exceptional service to your customers. With our reliable support, you can trust that your equipment will be in optimal condition, helping your business thrive in the competitive foodservice industry.

Commercial kitchen: ice machine, equipment, a metal sink, and various pipes against a wall.

Ice Machines

We repair and service commercial ice machines to ensure consistent ice production and proper sanitation. Our technicians are experienced with Manitowoc and Hoshizaki systems and can quickly address performance issues or breakdowns.

Commercial kitchen with stainless steel equipment and a worker in a yellow shirt.

Fryers

We service commercial fryers to maintain safe cooking temperatures and operational efficiency. From heating element repairs to full system troubleshooting, we keep your kitchen running smoothly.

Restaurant kitchen with stainless steel equipment and tile flooring.

Food Lines

We service food line equipment including prep stations and refrigerated food service units to ensure safe food storage and efficient workflow in commercial kitchens.

Interior of a commercial kitchen with stainless steel appliances, ventilation, and a water line.

Steamers, Holding Cabinets & Rethermalizers

We repair and maintain steamers, warming cabinets, and rethermalizers to help maintain proper food temperatures and consistent kitchen output.

Tankless water heater installed on a wall with pipes and gas lines in a commercial space.

Hot Water Heaters

We provide installation, repair, and maintenance of commercial and residential hot water heaters, including tank and tankless systems. Our team ensures reliable hot water performance and energy-efficient operation.

HVAC unit on a rooftop. Gray metal structure, condenser coil, black tubing, red and black cable on the ground, and white rooftop.

24/7 Emergency HVAC Services

Equipment breakdowns can happen at any time. We offer 24/7 emergency repair services to minimize downtime and restore heating, cooling, refrigeration, or cooking equipment quickly and safely.

Person in yellow hoodie working in a cold storage unit with refrigeration equipment.

Preventative Maintenance

Our preventative maintenance programs are designed to extend equipment life, improve energy efficiency, and reduce costly breakdowns. Regular servicing helps ensure your systems operate reliably year-round.

Snow-covered industrial area at night. Buildings line both sides of a snowy road, lit by green and white lights.

Snow Removal

We provide seasonal snow removal services to keep commercial properties safe, accessible, and operational during winter weather conditions.