RTU Replacement
RTU replacement for commercial buildings across the Inland Empire and northern Orange County keeps your business comfortable without interrupting daily operations. Eagle Air Co handles the entire process from removing your old rooftop unit to installing and testing your new system. We work with property managers, business owners, and facilities teams throughout the region to get commercial HVAC systems running right.
Signs Your Commercial Building Needs RTU Replacement
- Your rooftop unit is over 15 years old and breaking down more often
- Energy bills keep climbing even though your building usage has not changed
- Some areas of your building are too hot while others stay too cold
- The unit runs constantly but cannot reach the thermostat setting
- You smell strange odors or hear loud noises when the system runs
- Your maintenance costs have tripled over the past few years
How Eagle Air Co Handles RTU Replacement
Our team starts every RTU replacement project with a thorough assessment of your current system and your building’s heating and cooling needs. We calculate the correct unit size based on square footage, insulation, occupancy, and usage patterns. Choosing an undersized unit leads to constant short-cycling, while an oversized unit wastes energy and fails to dehumidify properly.
Once we select the right replacement unit, we schedule work during off-peak hours to minimize impact on your operations. The old rooftop unit gets safely disconnected from electrical, gas or refrigerant lines, and removed from the roof using proper equipment. We inspect the existing roof curb and duct connections, making any necessary adjustments so the new unit fits correctly.
The new RTU gets lifted into place, secured to the curb, and connected to all existing utilities. We charge the system with refrigerant, test airflow across all supply and return vents, verify thermostat communication, and walk through operation with your facilities team. For buildings needing broader HVAC improvements, we also offer commercial HVAC installation services that cover ductwork modifications and zoning system upgrades.
If your RTU is part of a larger building system, you may benefit from pairing the replacement with commercial HVAC maintenance to extend the life of your new unit from day one.
RTU Replacement Cost in the Inland Empire and northern Orange County
RTU replacement costs across the Inland Empire and northern Orange County typically range from $8,000 to $25,000 per unit before ductwork or electrical modifications. The final price depends on several factors specific to your building and equipment choices.
Tonnage drives the biggest cost difference. A 5-ton RTU costs considerably less than a 15 or 20-ton unit because larger compressors, coils, and blowers require more materials and labor. Efficiency ratings also matter. Standard efficiency units with SEER ratings around 12-14 cost less upfront but use more energy long-term. High-efficiency models with SEER ratings of 16-20 and integrated economizers cost more initially but qualify for utility rebates and reduce operating expenses over time.
Installation conditions affect pricing too. If the existing roof curb and ductwork adapters match the new unit, installation goes faster and costs less. When new curbs, adapters, or electrical upgrades are needed, those add to the project total. Buildings where the RTU sits in a hard-to-reach location or requires crane rental for removal and installation will see higher labor costs.
For buildings comparing all-in-one solutions, rooftop unit installation may be a relevant alternative if you are building new or completely reconfiguring your roof layout.
RTU Replacement Across the Inland Empire and northern Orange County
Commercial buildings across the Inland Empire and northern Orange County rely heavily on rooftop HVAC units. The hot summers in the Inland Empire and parts of Orange County put significant strain on these systems, often causing premature failure in units that do not receive regular maintenance. Older RTUs installed in the early 2000s are now reaching the end of their serviceable lifespan, driving increased demand for replacements across retail centers, office buildings, warehouses, and industrial facilities.
Local building codes andTitle 24 energy requirements influence replacement choices throughout the region. New RTUs must meet current efficiency standards, which means many property owners upgrading from older equipment end up with units that use significantly less energy. The mix of flat-roof commercial construction across the area makes RTUs the dominant HVAC format, and that trend continues with new development in Eastvale, Corona, and the Menifee area.
Business owners in older areas like parts of the Inland Empire and northern Orange County often face RTU replacements on buildings where the original units were installed decades ago. These properties may also have outdated electrical panels or duct systems that require updates alongside the new RTU. Our team coordinates with local utility companies to ensure replacements qualify for available rebate programs, which can offset a portion of the investment for qualifying high-efficiency equipment.
RTU Replacement FAQ
How do I know if I should replace my RTU instead of repairing it?
If your rooftop unit is over 15 years old and needs repairs more than twice per year, replacement typically makes better financial sense. A rule of thumb contractors use is the “50% rule” — if repairs will cost more than half the price of a new unit, replacement is usually the smarter choice. We provide honest assessments so you can make the right call for your building and budget.
What size RTU does my commercial building need?
RTU size is measured in tons of cooling capacity, with one ton equaling 12,000 BTUs per hour. We perform a load calculation based on your building’s square footage, ceiling height, insulation levels, window area, occupancy, and equipment heat load. Undersized units cannot cool adequately on the hottest days, while oversized units short-cycle and fail to dehumidify properly, leaving your building feeling clammy.
How long does a commercial RTU replacement take?
Most RTU replacements across the Inland Empire and northern Orange County take one to two days for the actual installation. The assessment, equipment ordering, and any pre-work on curbs or electrical systems add additional days beforehand. We coordinate scheduling to minimize downtime for your tenants or employees.
Will my building lose heating or cooling during RTU replacement?
We schedule RTU replacements during mild weather when possible and work efficiently to get your new unit operational as quickly as possible. For critical facilities that need continuous conditioning, we can arrange temporary cooling solutions or plan the work in phases to maintain comfort.
What efficiency ratings should I look for in a new RTU?
Modern RTUs are rated using SEER2 for cooling efficiency and HSPF2 for heating efficiency. For commercial applications in our region, look for units with SEER2 ratings of 14 or higher. High-efficiency models with ratings of 16-20 include features like integrated economizers that bring in outside air when conditions allow, which significantly reduces operating costs and qualifies for utility rebates.
RTU Replacement Service Area
Eagle Air Co provides RTU replacement throughout the Inland Empire and northern Orange County. We work with commercial property owners, facility managers, and business operators across the Inland Empire and Orange County regions. Our crews have experience with all major RTU brands and can handle projects ranging from single-unit replacements to multi-building rollouts.
Call Eagle Air Co at (714) 583-7909 to discuss your RTU replacement project. We provide detailed proposals that include equipment recommendations, timeline, and transparent pricing with no hidden fees.
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