Commercial Rooftop HVAC Unit Services in Gaithersburg, Maryland

Managing a commercial building means keeping every system running smoothly, including the one on your roof. Your HVAC unit plays a critical role in maintaining comfort, air quality, and energy efficiency across your property. At GAC Services, we provide comprehensive commercial rooftop HVAC services for businesses in Gaithersburg and throughout Maryland.

With over 50 years of experience serving local businesses, we understand the demands of commercial buildings, from retail and office spaces to industrial facilities. Whether you need emergency repairs, a system upgrade, or a brand-new installation, we’ll help you get the most from your rooftop HVAC system with minimal disruption to your operations.

Rooftop HVAC Repair

Rooftop units work hard year-round. Over time, exposure to weather, heavy usage, and mechanical wear can lead to system failures. If your building isn’t cooling or heating consistently, or your energy bills are climbing with no clear reason, it may be time for a rooftop HVAC repair. Common issues we handle include:

• Frozen evaporator coils
• Faulty compressors or fan motors
• Refrigerant leaks
• Electrical or control system failures
• Poor airflow or inconsistent temperatures

We respond quickly to minimize downtime and protect your indoor environment. Our technicians are trained to service all major rooftop HVAC systems and carry the parts needed to complete most repairs on the spot. Need urgent service? We also offer emergency rooftop HVAC repairs for businesses that can’t afford to wait.

Commercial Rooftop HVAC Unit Installation

If you’re constructing a new commercial building or expanding your space, a rooftop HVAC system can be a smart, space-saving solution. These systems are built for durability, ease of access, and efficient climate control, making them ideal for offices, retail locations, schools, and light industrial facilities.

When you work with GAC Services, we handle the entire rooftop HVAC installation process, including:

• System sizing and load calculations
• Equipment selection and layout planning
• Permitting and code compliance
• Safe rooftop placement and setup
• Full testing and performance checks

We tailor every installation to the needs of your business and building. Our team works efficiently to get your system up and running without delays while ensuring it meets all safety and performance standards.

Commercial Rooftop Unit Replacement

Even the best HVAC systems have a lifespan. If your current rooftop unit is nearing the 15- to 20-year mark, struggling to meet demand, or constantly needing service, replacement might be the smarter move. Signs it’s time to consider rooftop HVAC unit replacement:

• Frequent breakdowns and rising repair costs
• Significant drops in performance or airflow
• Loud operation or persistent system alarms
• Poor energy efficiency despite regular maintenance

We’ll evaluate your current system and help you compare replacement options that align with your space, energy goals, and budget. Our rooftop HVAC replacement services include removal and disposal of old equipment, ensuring everything is handled safely and according to code.

New systems offer better energy performance, lower operating costs, and modern control options that give you more flexibility in managing comfort.

Ready to Schedule Your Rooftop HVAC Service?

Your rooftop HVAC system plays a critical role in keeping your business comfortable, efficient, and up and running. Whether you need fast repairs, a new installation, or it’s time to replace aging equipment, GAC Services delivers dependable solutions with minimal disruption to your operations.

We’ve been helping Maryland businesses for over 50 years, and we understand what it takes to keep commercial buildings running smoothly. From honest recommendations to expert installation and long-term support, you’ll have a team you can rely on.

Connect with us or call (240) 224-0192 today to schedule your rooftop HVAC service or request a consultation.