Alco Building Solutions
Solar installer working in Marin County. Licensed since 2004.
- License active
- Workers' comp on file
6 jobs on Marin County permits, 2022 to 2023: 5 solar installations, 1 panel upgrade. 44th most solar system permits of 82 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 831145, active in the state's records on Sep 23, 2026General building, electricalNo 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 2004 | |
| Jobs on record | 6 jobs on Marin County permits, 2022 to 2023: 5 solar installations, 1 panel upgrade44th most solar system permits of 82 licensed contractors in Marin County. That counts jobs, not quality.Our Marin County permit records cover October 2021 to July 2026.Of their 5 solar system permits, 4 mention a battery. |
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 831145 on CSLB
Cost and timing
All solar system jobs in Marin County: $17,000 to $44,000
Half of 2,700 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Solar with a battery in Marin County: $24,000 to $56,000 (869 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 $26,000 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What solar system jobs cost in Marin County.
Get 2 or 3 written quotes.
Track record
Jobs per quarter
Where they work most
- 949382 jobs
- 949411 job
- 949201 job
- 949031 job
- 949241 job
Jobs by kind of work
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 |
|---|---|---|---|
| May 17, 2023 | Panel upgradeElectrical panel upgrade Service Upgrade | 94941 | $5,000 |
| Aug 10, 2022 | SolarInstall battery storage system that will tie to existing solar array | 94920 | $26,000 |
| Aug 8, 2022 | SolarInstall Battery Storage System that ties to existing solar array | 94903 | $24,000 |
| Aug 8, 2022 | SolarInstall Battery Storage System that will tie into existing solar | 94938 | $26,000 |
| Aug 8, 2022 | SolarInstalling Battery Storage System that will tie to solar array | 94938 | $26,000 |
| May 10, 2022 | SolarSOLAR Replace Rooftop Photovoltaic And New Energy Storage System - Express | 94924 | $12,500 |
What to ask before you hire
About Alco Building Solutions
- Ask what the warranty covers and for how long, in writing.
Worth asking any solar installer
- Can you show me proof of liability insurance and your bond?
- What size system, which panels and inverter, and what will it make in a year?
- Is my roof good for 25 more years, and what if it needs work first?
- Who handles the permit and the utility's approval to turn it on?
Get a quote from Alco Building Solutions
Five quick questions. We pass your request to Alco Building Solutions.
Request for Alco Building Solutions
- Where
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- Goes to
You decide who to hire. Your details go only to the contractors you pick. How we use your details
Sent. We have your request.
We pass it to Alco Building Solutions. Replies usually come within a few days.
Your job room keeps the request, your photos and every reply in one place, with an assistant that checks prices against city permits. Keep its link: it is the key to your job.
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Run this business? Claim this page to get requests by email and reply to homeowners here.