Wilmington HVAC guide

Help Paying for Heating and Cooling in Delaware

Delaware Energy Assistance (LIHEAP) for heating, cooling, and crisis bills, the free Weatherization Assistance Program, and Energize Delaware’s assisted tier.

HVAC technician reviewing equipment diagnostic report and digital written estimate with Wilmington homeowner Payment Assistance
Short answer

Delaware’s Energy Assistance Program (LIHEAP) helps income-eligible households with winter heating bills (October 1 to March 31), year-round crisis assistance, and summer cooling, which can include a free window air conditioner. It does not pay for furnace repairs. The free Weatherization Assistance Program covers air sealing, insulation, and duct sealing.

Scenic tree-lined residential street with brick homes in Wilmington, Delaware Technical Consideration
Navigating Delaware LIHEAP, crisis heating funds, and free Weatherization programs.

Delaware assistance programs

Delaware assistance programs
ProgramWhat it helps withHow to apply
Delaware Energy Assistance (LIHEAP)Heating bills Oct 1 – Mar 31; crisis help year-round; summer coolingNew Castle County: Catholic Charities (302) 654-9295, or the ASSIST online portal
Weatherization Assistance Program (DNREC)Free air sealing, insulation, duct sealing; not routine furnace or AC replacementEnergy Coordinating Agency (302) 504-6111
Energize Delaware Assisted Home PerformanceReduced-cost assessment ($25) and higher rebatesenergizedelaware.org

Published U.S. ranges for planning only, not Wilmington quotes. Your written price depends on diagnosis, access, equipment, permits, and timing. Sources: Delaware DHSS – Utility assistance (DEAP / LIHEAP); DNREC – Weatherization Assistance Program; Energize Delaware – Home Performance rebate pricing (Sep 2025).

Who qualifies for Delaware energy assistance?

LIHEAP eligibility is based on household income, capped at 60% of Delaware’s state median income.

The Weatherization program lists limits of about $31,920 for one person and $66,000 for a family of four; confirm current figures when you apply.

Will LIHEAP pay to fix my furnace or AC?

No. The state says energy assistance does not cover furnace repair or replacement; it helps with energy bills and crises.

Qualifying households may receive a free window air conditioner through summer cooling assistance.

What if I cannot afford an emergency repair right now?

Ask providers about payment plans, ask for the minimum safe repair to restore heat or cooling, and contact the crisis program if you have a shut-off notice or low fuel.

For health emergencies during heat or cold, contact local cooling or warming centers.

How can I lower heating and cooling costs long term?

Weatherization and Energize Delaware assessments identify air leaks and insulation gaps that raise bills.

Sealing and insulating first can also reduce the size and cost of any future HVAC replacement.

Related services in Wilmington

Local verification resources

Before authorizing work, use the Delaware license lookup. For projects that may require approval, consult the City of Wilmington permit information or the authority serving the property.

Keep reading

About this guide

Wilmington Climate Pros Editorial Team — Guides are researched from manufacturer documentation, published cost data, Delaware program rules, and local building conditions. They are educational and do not replace an on-site diagnosis by a qualified, licensed provider.

Common questions

Clear answers before you call

Where do I apply for LIHEAP in New Castle County?

Catholic Charities of the Diocese of Wilmington handles New Castle County applications at (302) 654-9295, or apply online through the state ASSIST portal.

Is weatherization really free?

Yes, for qualifying households, though there may be a waiting list prioritized by need.

Can renters get help?

Renters can apply for bill assistance; building improvements usually require the owner’s participation.

Ready to request help?

Tell us what your HVAC system is doing.

Call any time or send the service request form. For gas odor, smoke, fire, or a carbon-monoxide alarm, leave the property and contact emergency services or the utility first.

Call now: (302) 412-8942