Hydro Flow Systems Inc
Heat pump installer based in Novato. Licensed since 2015.
- License active
- Workers' comp on file
5 heat pump jobs on San Francisco permits, 2023 to 2026. 134th most heat pump permits of 217 contractors in San Francisco.
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 1004731, active in the state's records on Sep 23, 2026PlumbingNo 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 2015 | |
| Jobs on record | 5 heat pump jobs on San Francisco permits, 2023 to 2026Every permit we have for them is heat pump.They are based in Novato. Work outside San Francisco is not in these records.134th most heat pump permits of 217 licensed contractors in San Francisco. That counts jobs, not quality.Our San Francisco permit records cover September 2021 to September 2026. |
Records: the state license board and City of San Francisco 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 1004731 on CSLB
Cost and timing
All heat pump jobs in San Francisco: $8,800 to $27,000
Half of 2,697 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Ductless mini-splits in San Francisco: $7,500 to $24,000 (918 permits)
- Ducted heat pumps in San Francisco: $10,000 to $34,000 (406 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 timeline
Across San Francisco, a heat pump permit stays open about 45 days, from permit to final inspection
This is not how long the crew works at your home: most of it is waiting for the inspection. Ask them how many days the work takes. The permit itself is usually issued the same day. How long heat pump jobs take.
Track record
Where they work most
- 941021 job
- 941141 job
- 941181 job
- 941161 job
- 941171 job
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 |
|---|---|---|---|
| Aug 26, 2026 | Heat pumpNo details on the permit | 94102 | not stated |
| Dec 18, 2024 | Heat pumpWork category: 2pa; plumbing for bathroom, tie in to lightwell laundry room plumbing for laundry… | 94114 | not stated |
| Oct 8, 2024 | Heat pumpWork category: 2pb; installation of heat pump on outside for domestic hot water storage tank and… | 94118 | not stated |
| Jun 10, 2024 | Heat pumpWork category: 1p; install heat pump water heater in garage | 94116 | not stated |
| Aug 1, 2023 | Heat pumpWork category: 1p; installation of 240v heat pump waterheater | 94117 | not stated |
What to ask before you hire
About Hydro Flow Systems 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?
Get a quote from Hydro Flow Systems Inc
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Open your job roomMore heat pump installers near 94102 and 94114
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See all 217 heat pump installers in San Francisco, ranked by jobs
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