For central air with new ductwork, DRG Mechanical Inc provides a clear, written price after a 45–60 minute home visit and load calculation, because total cost varies by home and duct design. The biggest cost drivers are system size, how much ductwork must be added or replaced, and airflow needs identified during testing. You’ll receive Good/Better/Best options with upfront pricing, usually the same day, and most projects are completed in one day after approval. We also focus on right-sizing and airflow-first practices that keep the system efficient and quiet, and we apply this same approach for homeowners we serve around Harrisburg.
Key factors that influence price:
- Home size and cooling load (tonnage) from a formal load calculation
- Duct scope: length, materials, new returns/supplies, sealing, and insulation
- Airflow and static pressure fixes that prevent noise, hot rooms, or short cycling
- Equipment choice: AC vs heat pump, efficiency level, thermostat and filter cabinet options
Schedule a home visit so we can test your ducts on site and provide firm Good/Better/Best installation options in writing.
Updated: 2026-06-29
Need help in Harrisburg, SD? Call (605) 202-8996 or book online.