Rooftop Unit Services in Nashville, TN

One cabinet. A carefully coordinated installation.

Look beyond the rooftop equipment cabinet

Rooftop equipment replacement involves access, lifting, roof curbs, utilities and duct connections. We consider those details together so installation and service fit the building.


Rooftop HVAC unit installation and replacement in Nashville, TN involves more than selecting equipment capacity. Roof access, curb dimensions, duct openings and utility connections all affect the scope. We review those conditions together when planning a rooftop unit changeout for your commercial building.


An RTU replacement may require a compatible curb adapter, coordinated lifting, gas connections or changes to existing transitions. Service needs can also include controls, fan components and operating issues. We explain the work required for the specific unit and building so property owners understand what is included before approving the job.


NMT Heat & Air serves commercial properties in Clarksville, Springfield and other Middle Tennessee communities. Share the equipment information, roof-access arrangements and any operating restrictions when you contact us. Early planning helps coordinate a scheduled replacement, while an assessment of existing rooftop equipment can determine whether repair or maintenance is a suitable next step.

Planning related work? Explore our commercial changeouts & removals service, or contact us to discuss the right scope for your property.

Technician kneels by an open rooftop HVAC unit, inspecting or replacing the filter.

Rooftop unit installation, connections and ongoing care

We evaluate the requirements and explain which parts of the service apply to your system.

When to get in touch

  • An aging rooftop system
  • Repeated component failures
  • A tenant-space change
  • Planning equipment replacement
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RTU installation

Choose a rooftop unit installation that accounts for how your business uses the building.

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Equipment changeouts

Replace an aging rooftop system with the equipment, access and connections planned in advance.

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Curb adapters

Find out how a new rooftop unit can connect to your existing roof curb.

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Lift coordination

Include lifting and rooftop access in the project plan so you know what the installation involves.

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Gas and duct connections

Have gas and duct connections reviewed alongside your new rooftop equipment.

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Repair and maintenance

Keep a clear path from diagnosing rooftop problems to planning ongoing maintenance.

Before you schedule rooftop units

Rooftop Units FAQs

Know what to expect before you schedule.

  • Why might a rooftop replacement need a curb adapter?

    The existing roof curb may not match the new equipment footprint or openings. An adapter can help make the connection when suitable for the installation.

  • Can rooftop units address an aging rooftop system?

    Rooftop equipment replacement involves access, lifting, roof curbs, utilities and duct connections. We consider those details together so installation and service fit the building. We confirm the applicable scope after evaluating the property.

  • What should I share when requesting rooftop units?

    Share your service address, equipment type and the reason for the visit. Mention repeated component failures if it applies, and include photos or equipment model information when available.

  • How long will the job take?

    Timing depends on the equipment, access, materials and work involved. We discuss the expected schedule when we review your project.

  • Where do you provide service?

    We serve Nashville and Middle Tennessee across Davidson, Williamson, Sumner, Robertson, Montgomery, Wilson, Cheatham, Dickson and Rutherford counties. Ask us about the specific job location.