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Advanced Conservation Systems Inc

Solar installer based in Lancaster. Licensed since 1987.

  • License active
  • Workers' comp on file

36 jobs on Los Angeles permits, 2021 to 2026: 31 solar installations, 4 roofing jobs, 1 panel upgrade. 146th most solar system permits of 561 contractors in Los Angeles.

Get a quote from Advanced Conservation Systems IncCall (661) 945-4545Visit website Check license 508902

What the public records show

From the state's license records and the city's permits, one question at a time.

QuestionRecords showMark
Licensed?License 508902, active in the state's records on Sep 23, 2026General building, insulation, solarNo 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 1987
Jobs on record36 jobs on Los Angeles permits, 2021 to 2026: 31 solar installations, 4 roofing jobs, 1 panel upgradeThey are based in Lancaster. Work outside Los Angeles is not in these records.146th most solar system permits of 561 licensed contractors in Los Angeles. That counts jobs, not quality.Our Los Angeles permit records cover June 2023 to September 2026.Of their 31 solar system permits, 2 mention a battery.

Records: the state license board and City of Los Angeles permits.

State license board record

No complaints or citations on the board's public record.

Source: California Contractors State License Board, checked Oct 4, 2026. Look up license 508902 on CSLB

Cost and timing

Permit value (not a price)

Their typical permit lists $100,000 (half list more, half less)

That is the figure written on the permit form, which can be far from what you pay. Across Los Angeles, half of all solar system permits list $20,000 to $250,000. What solar system jobs cost in Los Angeles.

Get 2 or 3 written quotes.

Permit timeline

Across Los Angeles, a solar system permit stays open about about 8 months, 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. Waiting for the permit adds about 62 days. How long solar system jobs take.

Track record

12 jobs in the last 12 months, down from 16 the year before

Q2 2021: 1 jobQ4 2023: 1 jobQ1 2024: 3 jobsQ2 2024: 3 jobsQ4 2024: 9 jobsQ1 2025: 2 jobsQ2 2025: 3 jobsQ3 2025: 2 jobsQ4 2025: 3 jobsQ2 2026: 9 jobsBusiest: 9 jobs20222023202420252026
Each bar is 3 months of permits. The tallest is 9 jobs, October to December 2024.

Where they work most

  • 9160214 jobs
  • 914366 jobs
  • 913522 jobs
  • 913352 jobs
  • 902911 job

Jobs by kind of work

Latest jobs

Permit values are what the contractor wrote on the permit form, not what the owner paid.

A row marked ×2 or more stands for that many similar jobs on one day in one ZIP code.

DateWorkZIPOn the permit form
May 25, 2026Solar (×7, same day), 38.4 kW91602not stated
Apr 14, 2026Solar, 38.4 kW91436not stated
Apr 14, 2026Solar, 38.4 kWInstallation of a roof-mounted central/string inverter solar photovoltaic (PV) system, not…90291not stated
Dec 30, 2025Solar(eplan) pv1 for installation of roof mounted solar panels and installation of energy storage system91436not stated
Dec 18, 2025Solar, 38.4 kW91436not stated
Dec 2, 2025Solar, 38.4 kW90032not stated
Sep 8, 2025Solar, 38.4 kW91436not stated
Jul 14, 2025SolarInstall ballasted roof pv system to (e) apartment building91311$100,000
May 15, 2025Solar[ePlan][PV1] Installation of a new 19.6kWDC/15.2kWAC PV system with 272 tile modules and 2 central…91436not stated
Apr 30, 2025Solar91316not stated
Apr 23, 2025Solar, 27.58 kW[eplan] Tesla solar roof BIPT with solar inverters91401not stated
Feb 10, 2025Reroof, 38 squares (3,800 sq ft)91436$7,600
Feb 5, 2025Solar(EPlan) PV1 PC for installation of roof mounted solar panel90005not stated
Dec 16, 2024Reroof, 31 squares (3,100 sq ft)90272$6,200
Nov 13, 2024Solar (×2, same day)91602not stated
Nov 12, 2024Solar (×2, same day)91602not stated
Nov 4, 2024Solar91602not stated
Nov 1, 2024Solar, 38.4 kWInstallation of a roof-mounted central/string inverter solar photovoltaic (PV) system, not…91352not stated
Nov 1, 2024Solar (×2, same day)91602not stated
Jun 25, 2024Solar, 38.4 kW90018not stated
May 17, 2024Solar, 4.86 kWInstall 4.86 kW DC roof mounted PV system and 10.1 kWh energy storage system91405not stated
May 15, 2024Solar, 38.4 kW91352not stated
Mar 19, 2024Reroof, 28 squares (2,800 sq ft)91411$5,600
Jan 17, 2024Reroof, 28 squares (2,800 sq ft)91335$5,600
Jan 17, 2024Solar, 38.4 kW91335not stated
Dec 15, 2023Solar90039not stated
Apr 14, 2021Panel upgrade[eplan] plan check for battery and inverter and panel that is connecte91326not stated

What to ask before you hire

About Advanced Conservation Systems Inc

  • 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 Advanced Conservation Systems Inc

Five quick questions. We pass your request to Advanced Conservation Systems Inc.

You decide who to hire. Your details go only to the contractors you pick. How we use your details

1. Where is the job?

We match contractors who work near it. We never ask for your street address.

2. What do you need?

Pick any that fit.

3. When do you want to start?
4. What is your rough budget?

A range is fine. It helps contractors reply with a real number.

5. Where should we send it?

Your contact details go only to who you pick here.

Sent. We have your request.

We pass it to Advanced Conservation Systems Inc. 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.

Open your job room

More solar installers near 91602 and 91436

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