A home energy audit in Wilmington, DE is the single best investment you can make before spending money on windows, insulation, or a new HVAC system. Our team uses a blower door test, duct leakage measurement (optional), and thermal imaging to find the actual problems — not guess at them.
Local Context for Home Energy Audits in Wilmington, DE
Wilmington covers ZIP codes 19801, 19802, 19803, 19805, 19806, 19809. The housing stock in Wilmington consists of a mix of 19th-century rowhomes in neighborhoods like Trinity Vicinity, early-1900s single-families in Highlands and Westmoreland, and mid-century suburban homes in western areas. Notable neighborhoods include Trinity Vicinity, Highlands, Westmoreland, Trolley Square, Riverside. Major access routes include I-95, I-495, Route 13, and Route 202.
Wilmington sits in IECC Climate Zone 4A (Mixed-Humid), which determines the insulation R-values and air-sealing standards required by 2018 IECC (with Delaware amendments). Local electric service is provided by Delmarva Power, with natural gas typically served by Delmarva Power (natural gas).
Wilmington’s older rowhome stock often has shared party walls that can complicate blower door testing — experienced techs know how to handle these setups accurately.
Why a Home Energy Audit Matters in Wilmington
If you’ve noticed drafts, uneven temperatures, or energy bills that keep rising, a home energy audit in Wilmington, DE will tell you what’s actually going on. Instead of guessing at fixes (new windows? more insulation? bigger furnace?), you’ll have data — blower door numbers, thermal imaging scans, and a prioritized list of fixes by ROI.
Audits matter most for homes built before modern energy codes — essentially anything in Wilmington built before the early 2000s. These homes were not designed to modern air-sealing standards and almost always have significant, identifiable improvement opportunities.
What Our Clients Say
Saima Faiz — October 2024
I recently contacted Local Energy Audits for help with a suspected duct leak. From the start, they asked all the right questions and even requested pictures to better understand the situation. Based on the information I provided, they recommended a specific service, which, surprisingly, they didn’t even sell. They didn’t charge me anything for their time, and the advice they gave was invaluable. Their honesty, professionalism, and genuine desire to help really stood out. I highly recommend them.
Max Young — September 2024
Frustrated with my high electric bills — despite an efficiency drive in lighting and appliances — I suspected HVAC was to blame but didn’t know where to start. Research suggested an energy audit, and I’m very happy I chose Local Energy Audits. Ori was extremely professional, thorough, and on-time. After the blower door test, he walked every room with me, patiently reviewing leaks and possible fixes. Particularly given the new federal tax credits, I found the price extraordinarily reasonable. Highly recommend.
Robin Rafkin — June 2024
I had called numerous companies and had numerous individuals to our house. No one could figure out the issues. Ori explained everything and fixed the issues. He and his crew are wonderful!
John Lentz — December 2023
Chris was a fast and efficient tech. Whole test took less than a half hour from arrival to departure and provided exactly what was needed.
Read more reviews on Google.
What’s Behind the Walls of Your Wilmington Home?
A thorough home energy audit uses thermal imaging to scan every wall in your Wilmington home. Cold spots in winter (hot spots in summer) often indicate cracks where conditioned air escapes. Your auditor also physically inspects windows, doors, rim joists, attic hatches, and recessed lighting. In older New Castle County homes, these transitions are where the biggest efficiency losses hide.
What Tests Are Included in a Home Energy Audit?
A blower door test measures total air exchange by depressurizing the home to 50 Pascals. The resulting ACH50 tells you how leaky your Wilmington home is.
A duct leakage test is an optional add-on measuring ductwork air loss separately. It’s recommended for New Castle County homes with ductwork in attics, crawl spaces, or unconditioned basements.
Energy Audits for Older Homes in Wilmington
Older homes in Wilmington typically have significant energy inefficiencies — outdated insulation, failed window seals, missing attic air sealing, leaky ductwork. Without a systematic audit, it’s nearly impossible to figure out where to focus improvement dollars. With an audit, you know exactly what matters most for New Castle County housing stock.
What to Expect from Your Home Energy Audit in Wilmington
Our home energy audit process in Wilmington, DE:
1. Blower door test — Depressurize the home to 50 Pascals. Outside air then enters through any leaks in the envelope, which makes leak locations detectable by feel and visible on thermal imaging.
2. Thermal imaging walkthrough — Walk every room with a thermal imager. Temperature differences between interior surfaces and framing members reveal insulation gaps, air leakage paths, and thermal bridges that your eye can’t see.
3. On-site debrief + written report — Discuss findings with you live, then deliver a written report ranking recommendations by impact and cost. Most audits complete in about 2 hours.
What Happens After Your Audit?
You’ll get three things: (1) your home’s current efficiency, (2) prioritized problem areas by impact and cost, (3) specific recommendations. Your auditor walks you through fixes, cost ranges, and rebates. Under the IRA’s 25C credit, many improvements qualify for 30% tax credits, and the audit itself is credit-eligible up to $150.
What a Wilmington Home Energy Audit Costs
Our audit is a flat $390, which includes everything: blower door depressurization, thermal imaging walkthrough, on-site discussion, and written report with prioritized fixes.
Many Wilmington, DE homeowners add a duct leakage test for +$250 when their ductwork is in unconditioned space — which is common in basement-mounted HVAC systems across New Castle County.
Federal tax credits under the IRA’s 25C program can cover up to 30% of the audit cost (maximum $150 credit), making the net price closer to $240 for most homeowners.
Rebates and Incentives for Wilmington Homeowners
Delaware adopted the 2018 IECC as the statewide residential and commercial energy code. The Division of Energy & Climate oversees state-level standards, while local jurisdictions handle permitting and inspections. Homeowners in Wilmington may qualify for the Delaware Green Energy Fund and Energize Delaware’s weatherization programs — details available at https://energizedelaware.org/.
At the federal level, the Inflation Reduction Act’s Energy Efficient Home Improvement Credit (Section 25C) covers 30% of the cost of a home energy audit (up to $150), plus 30% of qualifying air sealing and insulation improvements (up to $1,200/year combined). Our technicians hold BPI Building Analyst Professional and HERS Rater certifications, which is the qualification required for most Delaware rebate programs.
Frequently Asked Questions
How much does a home energy audit cost in Wilmington, DE?
Our comprehensive home energy audit is $390 and includes a blower door test, full thermal imaging walkthrough, and written report. Adding a duct leakage test brings the total to $640. Under federal tax credit 25C, 30% of the audit cost (up to $150) is recoverable at tax time.
What rebates are available for DE home energy audits?
DE residents may qualify for the Delaware Green Energy Fund and Energize Delaware’s weatherization programs. The audit itself is eligible for a 30% federal tax credit (up to $150) under the IRA’s Energy Efficient Home Improvement Credit. Learn more at https://energizedelaware.org/.
How long does a home energy audit take in Wilmington?
A typical home energy audit in Wilmington takes about 2 hours on-site. You’ll receive a written report within a few business days identifying prioritized improvements ranked by impact and cost.
What’s the best time of year for a home energy audit in DE?
Audits can be performed year-round, but winter (for heating issues) and summer (for cooling issues) produce the most dramatic thermal imaging results because of larger indoor/outdoor temperature differentials. Climate Zone 4A (Mixed-Humid) makes Wilmington suitable for audits in any season.
Schedule an Energy Audit in Wilmington, DE
Comfort issues, high bills, planning an HVAC or insulation upgrade, or just curious about your home’s performance? A home energy audit in Wilmington is the most informative thing you can do. Two hours, $390 flat, written report, and federal tax credit eligibility.