Looking for an energy auditor in Daly City, CA? Describe your project once and up to three certified energy auditors who work in Daly City and San Mateo County get back to you with a quote. It's free and there is no obligation.
Daly City is home to about 101,418 people (2024 Census Bureau estimate), a shrinking community (−3.5% since 2020). With 13,258 people per sq mi, it is a densely built-up area. Older homes and long heating or cooling seasons make energy audits worthwhile here.
Daly City at a glance
- Population (Census Bureau estimate, 2024)
- 101,418 (−3.5% since 2020)
- Rank in California
- 75th of 482 cities and towns
- Land area
- 7.6 sq mi
- Population density
- 13,258 people per sq mi (densely built-up)
- Type
- City (Daly City city)
- Main county
- San Mateo County
What to check before hiring in Daly City
- Certification: choose a RESNET or BPI certified professional.
- Rebates: in California, 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 Daly City
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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 Daly City
How much does an energy audit cost in Daly City, CA?
It depends on the home and the tests. Describe your home: auditors who serve Daly City 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 Daly City 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.