If your home was built before 1995, there's a 90% chance its insulation is undersized, compacted or missing entirely. We audit, air-seal and upgrade — turning leaky envelopes into quiet, efficient, comfortable homes.
Blower-door test, thermal imaging, combustion safety check, and a written report with prioritized recommendations.
02
Scope & rebate planning
We design a phased or whole-house scope that maximizes available rebates and tax credits for your situation.
03
Air seal & install
Top-plates, can lights, plumbing chases and rim joists are sealed first. New insulation is installed to spec and verified for coverage.
04
Post-work verification
Optional re-test with the blower door so you can see the measured improvement — typically 25–40% tighter envelope.
Day-of checklist
Exactly what happens at your appointment.
Every visit follows the same checklist so nothing is skipped — and so you know exactly what your crew is doing, when.
01
Pre-visit & walkthrough
20–30 min
Review past PG&E bills and any comfort complaints room-by-room
Confirm scope: audit only, or audit + same-day air-sealing
Lay protection at entry, attic hatch, and crawl access
Set up testing equipment in a central location
02
Whole-home energy audit
1.5–2 hrs
Run a blower-door test to measure air leakage (ACH50)
Thermal-image walls, ceilings, windows, and rim joists
Combustion-safety check on furnace and water heater
Inspect attic, crawl space, and accessible wall cavities
03
Diagnostic report (on-site)
30 min
Walk you through findings on a tablet, room by room
Prioritize fixes by payback and comfort impact
Identify all eligible IRA, BayREN, and PG&E rebates
Provide written, itemized estimate before we leave
04
Targeted upgrade work
Varies (½–2 days)
Air-seal attic top plates, can lights, and rim joists
Top-up attic insulation to current Title 24 R-value
Insulate accessible ducts and water-heater pipes
Weatherstrip attic hatch, doors, and garage-house wall
05
Verification & sign-off
45 min
Re-run blower-door test to document improvement
Compare before/after thermal images and share with you
Submit rebate paperwork on your behalf where allowed
Email full Home Energy Score report and warranty docs
Materials
The right material for your home.
Air-sealing foam & caulk
Low-expansion foam, fire-rated caulk and gaskets used at every penetration before insulation goes in.
Blown-in cellulose
Our workhorse for attics and dense-pack walls — high R-value, recycled content, excellent sound performance.
Rigid foam board
Used on rim joists, knee walls and basement walls where moisture tolerance and high R-value per inch matter.
Before & after
Real Bay Area projects, side by side.
Every install is documented with photos so you can see exactly what we did — and so can your inspector.
BeforeAfter
01
Thermal scan: massive heat loss before, uniform envelope after the upgrade
El Cerrito
BeforeAfter
02
Air-sealed top plates, can lights and chases — then re-insulated to R-49
Oakland · Glenview
Homeowner stories
Words from the people who hired us.
★★★★★
"The blower-door test before and after showed a 38% tighter envelope. The IRA paperwork they gave us was airtight too — accountant loved it."
Mei Tanaka
El Cerrito · Whole-home energy upgrade
★★★★★
"I appreciated that they did the audit first instead of just selling me insulation. The phased plan let us spread the work across two years."
Aaliyah Brooks
Glenview · Audit + air sealing + R-49 attic
★★★★★
"They helped us qualify for almost $4,000 in BayREN rebates on top of the federal tax credit. The bill of work was the most detailed quote we got."
Carlos Mendoza
Albany · BayREN whole-house upgrade
Savings calculator
Estimate what you'll save each year.
Three quick questions. Numbers use 2024–25 PG&E rates, CEC climate-zone data, and DOE / ENERGY STAR savings ranges for upgrading to Title 24 (2022) code.
Home size
Current insulation
Climate zone
Your estimate
Estimated annual savings
$291
≈ $24 / month off heating & cooling
10-year savings
$2,910
CO₂ avoided / yr
930 lbs
Comfort boost
Even temps, fewer drafts
Estimates only. Actual savings vary by home condition, HVAC equipment, utility rates and usage. We'll confirm exact numbers during your free on-site assessment.
View assumptions for your selections
Your home
Home size
1,200 – 2,200 sq ft → 1,700 sq ft modeled
Current insulation
Attic ≈ R-19, walls ≈ R-11
Title 24 (2022) target
Attic R-38, walls R-13 + R-5 c.i. (or R-20)
Estimated HVAC reduction
18% of heating + cooling load
Climate & rates
Climate zone
Inland Bay (Walnut Creek, Napa) — multiplier ×1
Baseline HVAC cost
$0.95 / sq ft / yr (CZ12 reference)
PG&E electric rate
≈ $0.45 / kWh (2024–25 avg)
PG&E gas rate
≈ $2.52 / therm (2024–25 avg)
CO₂ factor
3.2 lbs CO₂ / $ saved (≈65% gas, 35% electric)
Calculation
1,700 sq ft × $0.95 × 1 (climate) × 0.18 (savings) = $291 / yr
Sources: DOE Guide to Home Insulation, ENERGY STAR Seal & Insulate methodology, CEC 2022 Title 24 envelope requirements, PG&E 2024–25 rate advisories, and the 2024 CEC Power Content Label for PG&E.
FAQ
Questions, answered.
Don't see your question? Call us at (510) 660-0455 or request a free estimate.
Book an appointment
Pick a time — we'll be there.
On-site visits are free and take about an hour. Choose any open Monday–Friday slot in the next two weeks; booked times disappear from the picker in real time so you never double up.
