What does energy assessments involve in Wilmington?
Energize Delaware’s Home Performance with ENERGY STAR program lists an assessment fee of $50 (or $25 for the assisted tier) and rebates for air sealing ($900 to $2,000), attic insulation ($900 to $1,400), and duct sealing ($550 to $850). Doing this before replacing HVAC equipment can reduce the size and cost of the new system.
What are the signs you need energy assessments?
- Drafty rooms and cold floors
- Ice dams or hot attic
- High bills compared with neighbors
- Planning an HVAC replacement
- Uneven temperatures between floors
- Moisture or condensation problems
How much does energy assessments cost?
| Item | Energize Delaware listed amount |
|---|---|
| Assessment fee (standard / assisted) | $50 / $25 |
| Air sealing rebate | $900 – $2,000 |
| Attic insulation rebate | $900 – $1,400 |
| Wall insulation rebate | $1,800 – $2,400 |
| Duct sealing rebate | $550 – $850 |
Published U.S. ranges for planning only, not Wilmington quotes. Your written price depends on diagnosis, access, equipment, permits, and timing. Sources: Energize Delaware – Home Performance rebate pricing (Sep 2025).
What should a good service visit include?
- Blower-door test and infrared scan
- Inspect attic, basement, ducts, and combustion safety
- Prioritize air sealing, insulation, and duct fixes
- Retest and right-size any HVAC replacement
What is different about Wilmington properties?
Brick rowhouses leak at party-wall tops, rear additions, and basement rim joists; postwar homes leak at attic bypasses and recessed lights. Air sealing must be paired with combustion safety testing when gas or oil appliances are present.
Ask the responding provider for identity, applicable Delaware license information, a written diagnosis or scope, total price, and warranty terms.
Related guides
- Do Heat Pumps Work Well in Wilmington, Delaware?
- HVAC Rebates and Incentives in Delaware (2026)
- HVAC Options for Finished Attics and Third Floors
- When Duct Sealing Helps and When Ducts Need Redesign
- How Weatherization Changes HVAC Sizing
- Help Paying for Heating and Cooling in Delaware
Where do we take energy assessments requests?
Requests are accepted across Wilmington and nearby New Castle County communities.
