Looking for an energy auditor in Hilton Head Island, SC? Describe your project once and up to three certified energy auditors who work in Hilton Head Island and Beaufort County get back to you with a quote. It's free and there is no obligation.
Hilton Head Island is home to about 38,158 people (2024 Census Bureau estimate), a growing community (+1.3% since 2020). With 923 people per sq mi, it is a semi-rural area. Older homes and long heating or cooling seasons make energy audits worthwhile here.
Hilton Head Island at a glance
- Population (Census Bureau estimate, 2024)
- 38,158 (+1.3% since 2020)
- Rank in South Carolina
- 14th of 271 cities and towns
- Land area
- 41 sq mi
- Population density
- 923 people per sq mi (semi-rural)
- Type
- Town (Hilton Head Island town)
- Main county
- Beaufort County
What to check before hiring in Hilton Head Island
- Certification: choose a RESNET or BPI certified professional.
- Rebates: in South Carolina, check your utility's programs before booking: some require their own approved auditors.
- Test-in, test-out: a blower door test before and after upgrades shows the result.
- Price drivers: home size, tests included and report detail.
Useful official resources
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ENERGY STAR
Energy efficiency guidance for homes.
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RESNET
Find a certified HERS rater.
Services available in Hilton Head Island
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Home energy audit
Whole-home assessment with blower door test and infrared scan, with a prioritized list of upgrades.
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HERS rating
HERS Index rating of a new or existing home by a RESNET-certified rater, for code compliance or programs.
Frequently asked questions in Hilton Head Island
How much does an energy audit cost in Hilton Head Island, SC?
It depends on the home and the tests. Describe your home: auditors who serve Hilton Head Island reply with a quote.
How long does it take?
Usually two to four hours on site.
Will the auditor sell me upgrades?
Some do; an independent auditor gives a neutral list.
Which certified energy auditors will contact me?
Up to three independent certified energy auditors who serve Hilton Head Island and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.