Rooftop Package Unit Replacement Cost.

Across the Phoenix metro, package unit replacement cost for a rooftop unit typically runs $7,500-$16,000 including crane. Commercial RTUs vary wider by tonnage. That is market context, not a quote. The real number depends on unit size, roof access, curb fit, electrical condition, duct connection, and what the old unit leaves behind.

The honest number

The low end usually means a straightforward residential rooftop package unit replacement. The roof is accessible, the existing curb fits or needs only minor adaptation, the duct opening is sound, electrical is in usable condition, and the crane can get clean access. The crew removes the old unit, sets the new one, seals the connection, verifies electrical and condensate details, starts the system, and checks operation.

The high end shows up when the roof fights back. Old curbs may not match modern units. Duct openings may be rough, undersized, or leaking into the attic. Foam or tile roofing may require more care. Electrical disconnects may be weathered, brittle, or wrong for the new equipment. The crane may need tighter coordination because of access, overhead lines, trees, parked vehicles, or a multi-story set. The harder part is not always the lift itself. It is getting the cabinet level, sealed, supported, and connected without creating a roof leak, air leak, vibration issue, or service-access problem.

Package units combine heating and cooling in one cabinet. That makes replacement look simple from the street, but the roof curb is doing a lot of work. It supports the unit, lines up the supply and return openings, helps shed water, and gives the equipment a sealed path into the house. A bad curb fit can turn new equipment into a noisy, leaky, inefficient installation. In desert conditions, that seal matters because the unit is sitting over a hot attic and a roof surface that takes sun, dust, wind, and monsoon water. Any gap at the curb or duct transition is a place for paid cooling to miss the rooms.

A written quote should come after an in-person look at the unit, roof, curb, ducts, electrical, and crane access. The quoted number is what you pay unless the scope legitimately changes and gets re-quoted in writing.

Cost breakdown

These ranges describe Phoenix market context for rooftop package unit replacement. They are not a Yeti Pros price list. Commercial RTUs vary wider by tonnage, roof structure, controls, and access, so a site look matters even more there.

What moves the price in the Valley

Crane time is the piece homeowners notice first because it is visible. The crane is not there for drama. Rooftop package units are heavy, awkward, and dangerous to move without the right lift plan. The crew needs a place for the crane, a path for the old unit down, a path for the new unit up, and enough control to set the cabinet square on the curb without damaging the roof. Tight streets, walls, landscaping, parked vehicles, and overhead lines can change the plan before the first tool comes out. A clean set lets the crew focus on the connection instead of fighting access.

Roof curb surprises are a major driver. Older units may sit on curbs that do not match current equipment. Sometimes the curb is out of square. Sometimes the duct openings do not line up. Sometimes the old seal has been patched through several summers and monsoons. If the curb leaks air or water, the new unit cannot perform the way it should. A curb adapter or transition is not cosmetic. It is the physical bridge between the new cabinet and the old opening, and it has to support airflow, drainage, vibration control, and weather sealing at the same time.

Arizona is slab-on-grade, so there are no basements for easy duct changes. Ducts live in attics that hit 150°F+. A rooftop package unit feeds directly into that duct system. If the attic connection is loose, crushed, or poorly sealed, paid cooling gets wasted before it reaches the rooms. The supply and return openings also matter because air does not turn cleanly through rough gaps, collapsed liner, or undersized transitions. Extra resistance can make the blower work harder while the rooms still feel weak.

Electrical panel age matters. A new package unit needs the right breaker, disconnect, wiring, and controls. Weathered rooftop electrical can look acceptable until covers come off. A replacement quote should account for what is visible and explain what happens if hidden damage appears. Sun-baked insulation, brittle whip, loose low-voltage wiring, or an old disconnect can turn a simple set into a correction that needs to be handled before startup is honest.

Permit scope and equipment tier also move the number. A basic code-compliant replacement is different from a higher-tier system with different controls or efficiency features. Commercial RTUs vary wider by tonnage because larger equipment brings heavier lifts, different curb requirements, and more complex controls. Timing can matter too. Roof work in high heat has to be planned around crew safety, equipment handling, and startup checks that still need to be done carefully.

How to keep the number honest

Make the quote earn your trust. The contractor should look at the rooftop unit, roof surface, curb, duct connection, electrical disconnect, panel basics, thermostat or controls, and crane access before giving a final number. A package unit quote made without seeing the roof is missing the part of the job that usually creates surprises. Photos help, but they do not replace standing at the unit, seeing the curb, checking the access, and understanding what the old installation will leave behind.

The quote should be flat-rate and written. It should say whether crane is included, whether haul-away is included, what curb or transition work is included, what electrical work is included, and what happens if hidden roof, duct, or wiring problems appear. The quoted number is what you pay unless the scope legitimately changes. If it does, the crew should stop and re-quote in writing.

Yeti Pros is veteran-owned & operated. AZ ROC #363372 · ROC #363423. We are a service-area business with no street address for walk-ins; we come to you. Office hours are Mon-Fri 8-5, with 24/7 emergency service. Diagnostic or service-call fees are disclosed at booking and credited toward the repair. Financing is available, and there is a 10% military, veteran & first responder discount.

For a replacement look, request package unit replacement or call (520) 556-8929. Larger jobs can use financing. Eligible customers can use the military, veteran & first responder discount.

Repair it or replace it

Repair can make sense when the unit is not too old, the cabinet is solid, the compressor is healthy, the heat side is safe, and the failure is isolated. A motor, control, drain, or electrical repair may buy real service life if the rest of the system is in decent shape. The roof and curb still matter because a sound repair on top of a leaking connection may not solve comfort complaints.

Replacement starts to make more sense when failures stack up, the cabinet is rusted, the compressor is weak, the heat exchanger or heating section raises concern, refrigerant problems keep returning, or the curb and duct connection are already poor. With rooftop units, access matters too. If crane and roof work are already part of the near future, pouring money into a tired unit can be false economy.

The honest decision is not based on age alone. It is based on the unit condition, repair history, roof and curb condition, duct performance, and whether the house gets even comfort after the repair.

Straight answers

Does package unit replacement always require a crane?

For rooftop package units, crane is commonly part of the job and is included in the typical Phoenix range here. The unit is too heavy and awkward for casual lifting. The crane protects the crew, the roof, and the equipment when the set is planned correctly.

What is a roof curb, and why does it matter?

The curb is the raised frame the package unit sits on. It supports the equipment, lines up the supply and return openings, and helps seal the roof penetration. If the curb is wrong, the system can leak air, leak water, vibrate, or deliver poor airflow even with new equipment.

Why do commercial RTUs vary wider by tonnage?

Commercial RTUs can be much larger, heavier, and more control-heavy than residential package units. Tonnage affects equipment size, crane planning, roof loading, curb adapters, economizer setup, and scheduling around business operations. That is why commercial work needs a site-specific look instead of a simple residential range.

What warranty should be in the paperwork?

The paperwork should separate workmanship from manufacturer parts coverage. Yeti Pros provides a 2-YEAR written workmanship warranty. Repair parts carry a 1-YEAR manufacturer parts warranty. For licensed work, the job is held to the AZ ROC Minimum Workmanship Standards under AZ ROC #363372 · ROC #363423.