500-Unit Apartment Complex HVAC Replacement: 35% Energy Reduction with Zero Tenant Displacement

🔧 The Challenge

The property featured 12 buildings with aging rooftop HVAC units that were 18 years old, well beyond their 15-year expected lifespan. Summer breakdowns were occurring weekly, causing tenant complaints and emergency repair costs exceeding $80,000 annually. The property management company needed to replace all systems without displacing residents or disrupting operations during peak leasing season.

💡 Our Solution

Auxi Services developed a phased replacement plan, tackling 2 buildings at a time over 8 weeks. High-efficiency variable-speed rooftop units were selected, reducing energy consumption by 35%. Temporary cooling was provided during switchover to maintain tenant comfort. Smart thermostats were installed in all units for additional energy optimization. All work was performed during business hours with minimal noise disruption. The old units were recycled, and rebates of $42,000 were secured from the local utility.

✅ The Outcome

All 48 HVAC units replaced in 8 weeks. Energy consumption reduced by 35% ($145,000 annual savings). Emergency repair calls eliminated. Tenant complaints dropped by 90%. Property achieved ENERGY STAR certification. New systems carry 12-year manufacturer warranty. Project completed 2 weeks ahead of schedule and $180,000 under budget.

Project Photos