We don't just
sell a score.

We communicate how your home works as a system, providing actionable data to optimize comfort and efficiency.

Have questions? See our FAQ

Don't Let the
City Requirement
Delay Your Closing

For the mandated time-of-sale energy assessment, we utilize the Home Energy Score. This nationally standardized asset rating, approved by the U.S. Department of Energy and the California Public Utility Commission, estimates your home's current and future energy efficiency.

Home Energy Score
Home Energy Score California

Mandatory Pre-Sale Home Energy Score

Your home's Mile-per-Gallon sticker

A 1–10 rating of your home's energy efficiency. Estimated annual energy costs are shown in three scenarios: as-is, after weatherization upgrades, and fully electrified, along with a prioritized list of recommended actions.

Who Needs This?

Single family and side-by-side duplex homes in Piedmont and Berkeley, older than 10 years. Stacked duplexes in Berkeley only. ADUs with a kitchen and bathroom need a separate score in Piedmont; exempt in Berkeley.

Your Deadline is Ours

On-site inspection typically takes 90 minutes, scheduled around your availability. With all data in place, reports are usually delivered within 24 hours. Have a closing deadline? Just let us know.

* BayREN rebate of $250 available. Your final cost for a single family home after rebate: $300

Single Family Home

$550

ADU with kitchen & bathroom

+$250

* Price includes the report filing fee to the city of Berkeley BESO portal. Check your property's compliance status here.

* BayREN rebate does not apply to Berkeley BESO assessments.

Single Family Home

$600

Side-by-Side Duplex

$600 / unit

Stacked Duplex

$900 / both units

See the Unseen,
Solve the Real Problem

Our Comprehensive Home Energy Analysis goes beyond the Home Energy Score to address both energy efficiency and occupant comfort, combining building physics and human behavior.

Core Home Energy Analysis Package

analytics
Your Comfort & Efficiency Blueprint

A detailed report that turns building science into clear next steps. You'll see what's driving discomfort and high bills, with prioritized upgrade recommendations ranked by impact, cost, and feasibility.

electric_meter
High Bills, Drafts, Cold Rooms?

For homeowners who sense the symptoms but don't know the cause: uneven temperatures, condensation, drafts, or utility bills that don't add up. Especially valuable before deciding on weatherization or HVAC upgrades.

summarize
Your Home, Fully Read

Building physics meets human experience. Data meets context. The combination reveals what neither alone can show.

$750
/ single-family home, a single site visit

* Please ask for a quote for an ADU.

  • Home Energy Score : essential baseline assessment
  • Homeowner Interview & Goal Setting
  • Infrared Heat Loss Scan
  • Thermostat & HVAC Control Review
  • Follow-up Remote Consultation

* BayREN rebate of $250 available. Your final cost for a single family home after rebate: $500 (Excluding Berkeley and Palo Alto)

Add-On Options

energy_program_time_used
Historical Utility Bill Analysis

12-Month Review: PG&E or Green Button data analyzed to explain your bills and uncover inefficiencies.

$250
air
Air Tightness Diagnostic

CFM50 Rating: Blower door test measuring air leakage to target weatherization improvements.

$350
Temporarily Unavailable
dew_point
24H Temp & Humidity Monitoring

Up to 5 Zones: Continuous logging to reveal thermal comfort patterns and moisture risks throughout your home.

$350

Have Tools, Will Travel

From Piedmont and Berkeley to San Francisco, Marin, and the Peninsula, we serve all nine Bay Area counties. Tools loaded, calendar open. A modest travel surcharge applies outside our home base in Alameda and Contra Costa.

Bay Area service zones map Sonoma Napa Solano Marin SF Contra Costa Alameda San Mateo Santa Clara
No Surcharge
  • Alameda County
  • Contra Costa County
+$75 travel surcharge
  • San Francisco County
  • San Mateo County
  • Marin County
+$100 travel surcharge
  • Santa Clara County
  • Solano County
  • Napa County
  • Sonoma County

Where Building Physics Meets Empathy

Ambience.House

About us

Hi, I'm Shin! I'm an Energy Analyst and Building Scientist, a BPI Certified Building Analyst Professional and DOE Certified Home Energy Score Assessor, a designer, maker, tinkerer, and problem-solver. Most importantly, I'm a homeowner passionate about bringing comfort, efficiency, and beauty into living spaces.

With a Ph.D. in information science and a background in design, I specialize in turning complex building data into engaging, actionable insights. My goal is to help homeowners truly understand how their home works as a system, and take control of its performance and comfort.

My experience spans UX design, digital tools, and product development, including my time as a startup co-founder. I serve the entire San Francisco Bay Area, from Piedmont and Berkeley to San Francisco, Marin, and the Peninsula.

When I'm not helping clients, you'll find me traveling, swimming, playing tennis, skiing, cooking, or singing with two choir groups in the East Bay and San Francisco. Let's make your home more comfortable, efficient, and enjoyable!

See the Unseen Podcast
Apple Podcast Spotify