Ernest Ongaro & Sons Inc
Heat pump installer working in Marin County. Licensed since 1963.
- License active
- Workers' comp on file
339 jobs on Marin County permits, 2021 to 2026: 151 heat pump installations, 142 panel upgrades, 21 EV charger installations, 19 solar installations, 4 pools and spas, 2 ADUs. The most heat pump permits of 42 contractors in Marin County.
What the public records show
From the state's license records and the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | License 215233, active in the state's records on Sep 23, 2026Boilers, electrical, fire protection, heating and airNo complaints or citations on the board's public record. | Checks out |
| Workers' comp? | Workers' comp policy on file with the stateThis covers their crew if someone is hurt. It is not insurance for your home. | On file |
| In business? | Licensed since 1963 | |
| Jobs on record | 339 jobs on Marin County permits, 2021 to 2026: 151 heat pump installations, 142 panel upgrades, 21 EV charger installations, 19 solar installations, 4 pools and spas, 2 ADUsThe most heat pump permits of 42 licensed contractors in Marin County. That counts jobs, not quality.Our Marin County permit records cover October 2021 to September 2026.Of their 151 heat pump permits, 65 mention ductless or mini-split units, 71 mention a furnace, 35 mention ducts or a ducted system. |
Records: the state license board and City of Marin County permits.
State license board record
Last checked Oct 4, 2026. This may have changed. Check it on CSLB.
No complaints or citations on the board's public record.
Source: California Contractors State License Board, checked Oct 4, 2026. Look up license 215233 on CSLB
Cost and timing
All heat pump jobs in Marin County: $10,000 to $24,000
Half of 1,127 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Ductless mini-splits in Marin County: $9,800 to $23,000 (421 permits)
- Ducted heat pumps in Marin County: $15,000 to $30,000 (166 permits)
How to read this range
Contractors write a job value on the permit form, and the city uses it to set the permit fee. It is not the contract price, and it is often lower than what you pay. A quarter of the permits list less than this range, and a quarter list more. Use it to see if a quote is in the normal range.
Permit value (not a price)
Their typical permit lists $12,150 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What heat pump jobs cost in Marin County.
Get 2 or 3 written quotes.
Track record
32 jobs in the last 12 months, down from 73 the year before
Where they work most
- 9494173 jobs
- 9490366 jobs
- 9490457 jobs
- 9496017 jobs
- 9494716 jobs
Jobs by kind of work
- Heat pump
- Panel upgrade
- EV charger
- Solar
- Pool or spa
- ADU
Latest jobs
Permit values are what the contractor wrote on the permit form, not what the owner paid.
| Date | Work | ZIP | On the permit form |
|---|---|---|---|
| Sep 15, 2026 | Panel upgrade | 94941 | $2,400 |
| Aug 31, 2026 | Panel upgrade | 94941 | $6,000 |
| Aug 24, 2026 | Panel upgrade | 94973 | $3,600 |
| Aug 17, 2026 | Panel upgrade | 94904 | $5,300 |
| Aug 3, 2026 | Panel upgrade | 94930 | $2,800 |
| Jul 22, 2026 | Panel upgrade | 94941 | $7,300 |
| Jul 22, 2026 | Panel upgrade | 94947 | $3,400 |
| Jul 22, 2026 | Panel upgrade | 94903 | $3,000 |
| Jul 6, 2026 | Panel upgrade | 94904 | $19,500 |
| Jun 19, 2026 | Panel upgradeNew Circuits / Outlets, Service Upgrade | 94947 | $4,200 |
| Jun 9, 2026 | Panel upgradeNew Circuits / Outlets, Service Upgrade | 94960 | $6,000 |
| May 29, 2026 | Panel upgrade | 94941 | $3,200 |
| May 27, 2026 | Panel upgradeService Upgrade, Replace Circuits / Outlets | 94960 | $25,000 |
| Apr 30, 2026 | Panel upgrade | 94903 | $3,500 |
| Apr 17, 2026 | Panel upgrade | 94941 | $5,000 |
| Mar 25, 2026 | Panel upgrade | 94965 | $2,700 |
| Jan 15, 2026 | Heat pumpInstall 2 new ductless mini splits that are single zone Mechanical Appliance | 94937 | $13,562 |
| Jan 6, 2026 | ADUREPLACE 50 GALLON WATER HEATER IN SAME LOCATION. TO SERVICE THE ADU Replace Plumbing Fixtures(s) | 94901 | $2,200 |
| Dec 23, 2025 | Panel upgradeReplace 100a sub panel and relocate from entry closet to living room Replace Circuits / Outlets | 94965 | $2,000 |
| Dec 19, 2025 | Heat pumpInstall 2 Zone Ductless Mini Split System In The Left Side Yard | 94903 | $10,000 |
| Dec 8, 2025 | Heat pumpADD NEW AIR HANDLER AND ADD HEAT PUMP. ADD 15 RUNS OF DUCTING. New Ductwork, Mechanical… | 94941 | $25,000 |
| Dec 5, 2025 | Panel upgradeInstall(N)18.0KHW Sig Battery backup with 100A crictical loads Panel with Battery control | 94941 | $12,800 |
| Dec 5, 2025 | SolarRemove(E)100A main Install(N)200A solar ready meter/main combo in same location Service Upgrade | 94904 | $3,400 |
| Dec 5, 2025 | Panel upgradeRemove(E)125A Main Install(N)200A Meter/main combo in same location Service Upgrade | 94904 | $3,800 |
| Nov 19, 2025 | Heat pumpReplace furnace in attic with air handler in same location | 94941 | $13,500 |
| Oct 31, 2025 | Solar, 8.360 kW | 94956 | $26,000 |
| Oct 31, 2025 | Panel upgrade, 8.360 kW | 94956 | $26,000 |
| Oct 23, 2025 | Heat pumpADD NEW HEAT PUMP. REPLACE FURNACE AND DUCTING Replace Ductwork, Mechanical Appliance, Replace… | 94941 | $18,500 |
| Oct 23, 2025 | Heat pumpADD NEW HEAT PUMP. REPLACE FURNACE WITH AIR HANDLER Mechanical Appliance, Replace Mechanical… | 94963 | $17,000 |
| Oct 16, 2025 | Heat pumpReplace furnace and AC w/ air handler and heat pump Replace Mechanical Appliance | 94960 | $18,000 |
| Oct 9, 2025 | Panel upgradeInstall 2 (N) grid tied PointGuard Batteries 8KwH Install 100A Point Guard Hub behind main panel in… | 94945 | $10,835 |
| Oct 7, 2025 | Heat pumpADD NEW HEAT PUMP Mechanical Appliance | 94904 | $10,811 |
| Oct 1, 2025 | Heat pumpRemove 2 (E) NG furnaces located in basement. Install 2 (N) NG furnaces in same location Remove 2… | 94903 | $33,962 |
| Oct 1, 2025 | SolarGround mount solar system with ESS | 94929 | $33,750 |
| Sep 25, 2025 | EV chargerInstall (N) EV charger located left of garage exterior EV Charging Station; With Electronic… | 94904 | $1,520 |
| Sep 25, 2025 | Solar, 6.560 kWNew photovoltaic flat roof mounted system - 6.560 kw dc/6.012 kw cec ac | 94904 | $25,642 |
| Sep 23, 2025 | Panel upgradeRemove (E) 100A main panel located in garage, install (N) 200A main outside of garage in same… | 94941 | $6,003 |
| Sep 17, 2025 | Heat pumpReplace furnace with air handler, install heat pump NEW in backyard | 94941 | $21,488 |
| Sep 10, 2025 | Heat pumpRemove (E) NG furnace located in crawl space | 94945 | $28,533 |
| Sep 9, 2025 | Solar, 8.360 kW | 94903 | $17,339 |
What to ask before you hire
About Ernest Ongaro & Sons Inc
- Ask what the warranty covers and for how long, in writing.
Worth asking any heat pump installer
- Can you show me proof of liability insurance and your bond?
- What size unit, and did you measure the house to choose it?
- Do my ducts or my electrical panel need work first?
- Who pulls the permit, and what rebates apply?
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See all 42 heat pump installers in Marin County, ranked by jobs
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