A home energy audit costs $212 to $698 for most homeowners, with Angi publishing a $437 national average from 817 reported projects.1 Angi and HomeAdvisor both publish that span as their normal range; HomeAdvisor also gives an overall price span of $100 to $2,400.2 Fixr separately publishes a $250 national average for a level 2 audit on a 1,200-square-foot home including a blower door test, within a $145 to $420 national average range.3 Prices below are national averages*.
*National averages, not local quotes. Angi figures are from a 2026 guide updated October 2026, HomeAdvisor figures are from a 2025-data guide updated June 2026, and Fixr figures are from a guide updated January 2025. Your price depends on home size, audit level, tests included, and regional labor rates.
$437
national average (Angi)
$212–$698
normal range (Angi & HomeAdvisor)
$250
national average (Fixr, 2025)
$145–$420
national average range (Fixr, 2025)
What the sources say
| Source | Headline figures | Notes |
|---|---|---|
| Angi (updated Oct 2026) | $437 national average from 817 verified projects; most pay $212 – $698 | Prices some audits at $0.10 – $0.40 per sq. ft. |
| HomeAdvisor (2025 data, updated Jun 2026) | $437 average; $212 – $698 normal range; overall prices $100 – $2,400 | Corporate sibling of Angi – matching figures alone don’t establish independent corroboration |
| Fixr (updated Jan 2025) | $250 national average for a level 2 audit on a 1,200 sq. ft. home with blower test; $145 – $420 national average range; $80 low end (level 1, 800 sq. ft.) to $1,500 high end (level 3, 2,600 sq. ft.) | Separately published from the figures above, with no shared sourcing stated |
Angi and HomeAdvisor publish matching headline figures; the sibling relationship is disclosed above. HomeAdvisor and Fixr publish identical cost-by-home-size tables and the same $0.08 to $0.50 per-square-foot range – separately published figures, and the pages state no shared sourcing.
Cost by audit type
| Audit type | Average cost | Source |
|---|---|---|
| Basic visual walkthrough | $100 – $200 | Angi (2026) |
| Standard (blower door test, infrared scan, utility bill analysis) | $200 – $700 | Angi (2026) |
| Advanced / diagnostic | $400 – $1,000 | Angi (2026) |
| DIY kit | $30 – $150 | Angi (2026) |
| Subsidized or free (utility or government sponsored) | $0 – $150 | Angi (2026) |
| Basic walk-through | $150 – $200 | HomeAdvisor (2025 data) |
| Standard audit (includes basic tests) | $300 – $500 | HomeAdvisor (2025 data) |
| Comprehensive audit (detailed testing and analysis) | $500 – $900 | HomeAdvisor (2025 data) |
The two publishers define their tiers differently, so rows covering similar tiers are kept as separately published figures rather than compared directly.
ASHRAE audit levels
HomeAdvisor prices the three ASHRAE levels as totals for most homes:
| ASHRAE level | Typical total cost (HomeAdvisor, 2025 data) |
|---|---|
| Level 1 (walk-through) | $150 – $200 |
| Level 2 (comprehensive inspection and report) | $200 – $650 |
| Level 3 (intensive technical analysis) | $650 – $900 |
Fixr prices the same levels per square foot:
| ASHRAE level | Cost per sq. ft. (Fixr, 2025) |
|---|---|
| Level 1 | $0.08 – $0.24 |
| Level 2 | $0.25 – $0.35 |
| Level 3 | $0.36 – $0.50 |
Different presentations, kept separate rather than compared directly. HomeAdvisor and Fixr publish a matching $0.36 to $0.50 per-square-foot rate for Level 3 – separately published figures with no shared sourcing stated.
Cost by home size (HomeAdvisor & Fixr, matching)
| Home size | Average cost |
|---|---|
| 1,000 sq. ft. | $80 – $500 |
| 1,500 sq. ft. | $120 – $750 |
| 2,000 sq. ft. | $160 – $1,000 |
| 2,500 sq. ft. | $200 – $1,250 |
| 3,000 sq. ft. | $240 – $1,500 |
HomeAdvisor and Fixr publish this identical table; the pages state no shared sourcing. Angi publishes a different home-size table: $100 to $400 for 1,000 sq. ft., $200 to $700 for 2,000 sq. ft., and $300 to $1,000 for 3,000 sq. ft. The two presentations are kept separate rather than compared directly.
Common tests and add-ons
| Test or add-on | Cost | Source |
|---|---|---|
| Blower door test (add-on) | $100 – $300 | Angi (2026) |
| Infrared thermography | $150 – $400 | Angi (2026) |
| Duct leakage testing | $100 – $300 | Angi (2026) |
| Combustion safety testing | $75 – $200 | Angi (2026) |
| Blower door (itemized equipment fee) | $0 – $100 | Angi (2026) |
| Infrared camera (itemized equipment fee) | $50 – $200 | Angi (2026) |
| Duct testing devices (itemized equipment fee) | $50 – $150 | Angi (2026) |
| Blower door test | $350 flat | HomeAdvisor (2025 data) |
| Duct test | $100 flat | HomeAdvisor (2025 data) |
| Infrared test | $200 flat | HomeAdvisor (2025 data) |
| Blower door test | $150 – $450 | Fixr (2025) |
| Infrared imaging | $300 – $500 | Fixr (2025) |
| Duct testing | $50 – $200 | Fixr (2025) |
Angi lists some tests under two distinct labels – as itemized equipment fees and as add-on services; both labeled sets are shown. Across publishers, rows for the same test are separately published figures rather than compared directly.
Other cost factors
| Item | Cost | Source |
|---|---|---|
| Hourly labor rate | $75 – $150 per hour | Angi (2026) |
| Prep work by the auditor’s crew | $25 – $75 | Angi (2026) |
| Follow-up visit or re-inspection | $50 – $200 per visit | Angi (2026) |
| Detailed written report or supplemental documentation | $50 – $150 | Angi (2026) |
| Additional zone or outbuilding audit | $100 – $300 each | Angi (2026) |
| Post-audit consultation or project management | $50 – $150 per hour | Angi (2026) |
| HERS rating (add-on) | $375, plus $200 for additional certifications | HomeAdvisor (2025 data) |
| HERS test | $1,500 – $3,000 | Fixr (2025) |
HomeAdvisor and Fixr price HERS rating tests far apart – $375 versus $1,500 to $3,000 – with no shared sourcing or explanation stated; both presentations are shown rather than reconciled. Published estimates put a standard audit at two to four hours (Angi and HomeAdvisor) or two to three hours, sometimes up to four or more (Fixr). HomeAdvisor also reports city averages: about $550 in Boston, $450 in Chicago, $300 in San Francisco, and up to $800 in New York.
Related upgrade costs
Audits commonly lead to efficiency upgrades. What the publishers quote for the most common ones:
| Upgrade | Cost | Source |
|---|---|---|
| Air sealing | $350 – $1,000 | Angi (2026) |
| Home air sealing | $600 – $2,300 | Fixr (2025) |
| Insulation upgrade | $1,200 – $3,000 | Angi (2026) |
| Home insulation replacement | $1,000 – $2,600 | HomeAdvisor (2025 data) |
| Duct repair or sealing | $500 – $2,000 | Angi (2026) |
| HVAC repair | $150 – $1,500 | Angi (2026) |
| Smart thermostat installation | $200 – $500 | Fixr (2025) |
| Weatherstripping | $200 – $600 | Fixr (2025) |
| Storm window installation | $2,000 – $5,000 | Fixr (2025) |
| Window replacement | $3,400 – $11,800 | HomeAdvisor (2025 data) |
| Window replacement | $3,500 – $10,500 | Fixr (2025) |
| Heat pump installation | $4,200 – $8,000 | HomeAdvisor (2025 data) |
Rows covering the same upgrade under different scopes are kept as separately published figures rather than compared directly.
Related guides
Home Inspection Cost
Attic Insulation Cost
Weatherstripping Cost
Smart Thermostat Installation Cost
All cost guides
Sources
1. Angi — How Much Does a Home Energy Audit Cost? (2026)
2. HomeAdvisor — What Does a Home Energy Assessment Cost? (2025 data)
3. Fixr — Energy Audit Cost (2025)