What is included in a home energy audit?

Often: inspection of envelope, HVAC, insulation; blower door test; sometimes thermography. Comprehensive audits add detailed testing and a report with recommendations.

Is a blower door test worth it?

Yes for finding air leaks. Blower door tests are standard in many audits and help prioritize sealing and insulation.

Do utilities offer free energy audits?

Many utilities offer discounted or free basic assessments. Full blower-door audits may still have a fee.

How long does an energy audit take?

Basic: 1–2 hours. Blower door / standard: 2–4 hours. Comprehensive: half day or more.

What is the ROI of an energy audit?

Audit cost is usually low relative to potential savings from recommended upgrades. Fixing leaks and adding insulation often pay back in a few years.

Should I get an audit before solar?

Recommended. Improving efficiency first can reduce the solar system size you need and lower bills.

What is a blower door test?

A fan depressurizes the house to measure air leakage (CFM50). It reveals where air enters and exits the envelope.

What is thermography in an energy audit?

Thermal imaging shows temperature differences to find missing insulation, leaks, and moisture. Often part of comprehensive audits.

How do I prepare for an energy audit?

List concerns (drafts, high bills). Have access to attic and crawl space. Avoid running HVAC right before if requested.

Can I do my own energy audit?

You can do a simple walk-through and use a handheld thermometer. Professional audits with blower door and thermography are more accurate.

What happens after an energy audit?

You receive a report with findings and prioritized recommendations (sealing, insulation, HVAC, etc.). Many auditors can refer contractors.

Does an energy audit increase home value?

Indirectly. The improvements you make based on the audit (insulation, sealing) can add value and appeal.

How often should I get an energy audit?

After major renovations or every 5–10 years if you want to track envelope and system performance.

What certifications do energy auditors have?

Look for BPI (Building Performance Institute) or RESNET raters. Some states have specific requirements.

Home Energy Audit Cost Calculator

Q: How much does a home energy audit cost?

Home energy audits in the U.S. typically cost $200–$800+. Basic walk-throughs are less; blower door and comprehensive audits with thermography cost more.

Use this free home energy audit cost calculator to estimate cost by home size (sq ft), audit type (basic, blower door, comprehensive), and location. Typical range $200–$800+. Get a low, average, and high estimate below.

How much does a home energy audit cost?

Home energy audits typically cost $200–$800+. Basic walk-throughs are less; blower door and comprehensive audits cost more. Many utilities offer discounts.

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These figures are based on national average material and labor costs adjusted for the options you selected. Actual pricing varies with your local market, site conditions, material availability and contractor workload. Always get two or three written quotes before committing to a project.

Average Home Energy Audit Cost

Typical range $200–$800+. Final cost depends on audit type and home size.

Cost by audit type

Typical ranges

Type	Estimated cost
Basic / walk-through	$150–$400
Blower door / standard	$300–$600
Comprehensive	$500–$1,000+

Cost factors

What drives the total

Factor	Impact
Home size	Larger homes may cost more
Thermography / extras	Adds to comprehensive

What Affects Energy Audit Cost?

Audit type — Blower door and thermography add cost and value.
Home size — Larger homes may be charged more.
Location — Labor rates vary by region. Check utility rebates.

Data from auditor quotes

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Home Energy Audit Cost FAQs

Common questions about home energy audit cost.

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Disclaimer: Estimates are for planning only. Actual costs depend on provider and location. Check utility and state programs for rebates.