Commercial RTU Installation & Service

If you’re managing a commercial building in Statesville, reliable rooftop HVAC systems — known as RTUs (Rooftop Units) — are critical for maintaining indoor comfort, air quality, and energy efficiency. At Aither Heating & Air, we provide expert commercial RTU installation, replacement, and service for a wide range of businesses. Whether you’re building from the ground up or need to replace an aging unit, our licensed team handles everything from system design and crane lift coordination to long-term maintenance.

What Is a Commercial RTU?

A commercial rooftop unit is a self-contained HVAC system that includes heating, cooling, and air handling components all in one cabinet, typically mounted on the roof of a commercial building. These systems are used for offices, retail stores, restaurants, warehouses, and other medium to large buildings that need efficient, centralized air management without using indoor space.

RTUs pull in outside air, condition it (heating or cooling as needed), and then distribute it through ductwork into different zones of the building. Many systems also include features like:

• Economizers for using outside air to cool the building naturally
• Variable-speed motors for energy savings and comfort
• Integrated controls for zoning and automation
• Gas, electric, or heat pump-based heating options

RTUs are especially popular for flat-roof buildings due to their compact footprint, quiet operation, and ease of service access. If your building is using outdated rooftop units, upgrading to modern, high-efficiency models can drastically reduce your utility costs and improve tenant or customer satisfaction.

Professional RTU Installation Services

At Aither Heating & Air, we offer full-service RTU installation — from design to final startup. We work with building owners, general contractors, and facility managers to deliver turnkey rooftop HVAC solutions. Our team handles every part of the process with precision and professionalism, ensuring your system is installed safely and up to code.

Our RTU installation process includes:

• Load calculations: We evaluate your building’s heating and cooling needs to size the system correctly.
• Unit selection: We help you choose a high-efficiency RTU that matches your performance, zoning, and budget requirements.
• Crane coordination: We schedule and manage crane service to lift the unit onto the roof securely and safely.
• Duct and curb setup: We ensure the RTU connects properly to the building’s duct system using a compatible curb and proper sealing.
• Gas and electrical connections: We connect the unit to building utilities and verify system safety and compliance.
• Start-up and balancing: We run the system, test all functions, and make adjustments for balanced airflow and comfort control.

Our RTU installations are clean, code-compliant, and optimized for performance and service accessibility. We install units from top manufacturers and can also provide compatible thermostats or building automation integration where needed.

RTU Replacement for Aging Systems

Is your rooftop unit failing, leaking, or just costing too much to operate? Replacing it with a modern RTU can drastically improve energy efficiency and reliability. Systems older than 15 years typically show signs of wear and may use outdated refrigerants, making them expensive to maintain or repair.

Common signs it’s time to replace your RTU include:

• Frequent breakdowns or service calls
• Uneven heating or cooling across building zones
• Rising energy bills despite regular maintenance
• Corrosion or visible damage to rooftop components
• System running on R-22 refrigerant, which is being phased out

We’ll assess your current system, provide a clear quote for replacement, and remove the old unit carefully to avoid roof damage or disruption to your business. Many RTU replacements can be completed within a single day, minimizing downtime.

Commercial RTU Maintenance Plans

Regular maintenance is critical to keeping your rooftop unit operating efficiently and avoiding costly breakdowns. A poorly maintained RTU can lead to airflow issues, overheating, and reduced comfort for occupants. Our team offers seasonal and annual commercial HVAC maintenance plans tailored to your needs.

RTU maintenance includes:

• Filter changes
• Inspecting and cleaning coils
• Checking refrigerant levels and pressures
• Inspecting belts, motors, and fans
• Testing controls and safety switches
• Verifying proper economizer function

Preventative service helps you catch small issues before they become big problems. We also keep maintenance records for your equipment, so you have a history for warranties, efficiency tracking, and budgeting purposes.

RTU Repair and Emergency Service

If your commercial RTU system fails, it can impact your customers, employees, and productivity. Aither Heating & Air offers fast and responsive repair service for rooftop units across Statesville. Whether your unit won’t start, isn’t cooling evenly, or is making loud noises, our experienced techs will diagnose the issue and provide a clear plan for repair.

We carry parts for many major brands and models and can service units both in and out of warranty. Common repairs include:

• Blower motor replacement
• Capacitor and control board repairs
• Refrigerant leak detection and recharge
• Fan and compressor replacement
• Thermostat or zoning control issues

Our goal is to keep your business running smoothly and your building comfortable. If repair isn’t the best solution, we’ll provide honest advice and a quote for replacement.

Statesville’s Trusted Commercial HVAC Partner

At Aither Heating & Air, we’ve built our reputation on honest service, clean work, and doing the job right — the first time. We’re a family-owned, fully licensed HVAC company that takes pride in helping other local businesses stay comfortable and efficient year-round.

We work with offices, medical clinics, retail stores, churches, and more. Whether you need a single rooftop unit or service for a multi-zone building, we approach every job with professionalism, clear communication, and a commitment to quality that you’ll notice from day one.

Get a Quote for RTU Service or Installation

Need rooftop HVAC service or planning a new RTU install? Contact Aither Heating & Air at 704-682-5794 or email aitherheatingandair@gmail.com to schedule a consultation. We proudly serve commercial clients throughout Statesville and surrounding areas with top-tier HVAC solutions that work as hard as you do.