What does rooftop units involve in Wilmington?
Installed RTU replacements typically run about $6,000 to $10,000 for 2 to 3 tons, $9,000 to $14,500 for 5 tons, $14,000 to $24,000 for 10 tons, and $24,000 to $41,000 for 20 tons. Crane mobilization ($1,500 to $4,500), curb adapters ($800 to $3,000), and electrical upgrades are the most commonly missed line items.
What are the signs you need rooftop units?
- Unit older than 15 years with repeated failures
- Compressor or heat exchanger failure
- Economizer stuck open or closed
- Tenant hot and cold complaints
- Roof leaks around the curb
- High utility bills for the space
How much does rooftop units cost?
| Unit size / item | Typical installed range |
|---|---|
| 2–3 ton RTU | $6,000 – $10,000 |
| 5 ton RTU | $9,000 – $14,500 |
| 10 ton RTU | $14,000 – $24,000 |
| 20 ton RTU | $24,000 – $41,000 |
| Crane mobilization | $1,500 – $4,500 |
| Curb adapter | $800 – $3,000 |
| Electrical upgrades | $500 – $3,500 |
Published U.S. ranges for planning only, not Wilmington quotes. Your written price depends on diagnosis, access, equipment, permits, and timing. Sources: Oxmaint – RTU replacement cost 2026.
What should a good service visit include?
- Survey unit, curb, electrical, and roof structure
- Compare repair, like-for-like, and high-efficiency options
- Schedule crane, permits, and tenant shutdown
- Commission economizer, controls, and airflow
What is different about Wilmington properties?
Downtown and Riverfront buildings may need street closures or permits for crane lifts, and older roofs may need structural review for heavier units. Plan replacements for spring or fall to avoid peak-season downtime.
Which brands and equipment are covered?
Rooftop units in the area are commonly Carrier, Trane, Lennox, York, and Daikin. Curb dimensions and electrical requirements differ by brand and model. See all brands and common issues.
Ask the responding provider for identity, applicable Delaware license information, a written diagnosis or scope, total price, and warranty terms.
Related guides
Where do we take rooftop units requests?
Requests are accepted across Wilmington and nearby New Castle County communities, and rooftop units comes up most often in Downtown & Riverfront, Newport, Stanton & Prices Corner.
