Cook Development Group Inc

Solar installer working in Riverside.

Riverside publishes no contractor license list we can check

10 jobs on Riverside permits, 2023 to 2026: 9 solar installations, 1 panel upgrade. 55th most solar system permits of 161 contractors in Riverside.

Get a quote from Cook Development Group Inc

What the public records show

From the city's permits, one question at a time.

Question	Records show	Mark
Licensed?	Riverside publishes no contractor license list we can checkThat says nothing about this business either way.	Ask them
Jobs on record	10 jobs on Riverside permits, 2023 to 2026: 9 solar installations, 1 panel upgrade55th most solar system permits of 161 contractors in Riverside. That counts jobs, not quality.Our Riverside permit records cover September 2021 to September 2026.

Records: City of Riverside permits.

Cost and timing

All solar system jobs in Riverside: $11,000 to $31,000

Half of 3,569 city permits list an amount in this range. Permit amounts are often lower than what you pay.

Solar with a battery in Riverside: $22,000 to $47,000 (137 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 $10,000 (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 Riverside.

Get 2 or 3 written quotes.

Track record

7 jobs in the last 12 months, up from 0 the year before

Each bar is 3 months of permits. The tallest is 7 jobs, April to June 2026. Across Riverside, all contractors together had 12% fewer solar system jobs in the last 12 months than in the 12 months before.

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.

Date	Work	On the permit form
Jun 5, 2026	Solar, 6.48 kW	$10,000
Jun 5, 2026	Solar, 6.48 kWInstall pv solar system with (16 ) photovoltaic panels on residential rooftop - 6.48 kw dc see pv…	$10,000
Jun 4, 2026	Solar, 6.48 kW	$10,000
Jun 4, 2026	Solar, 6.48 kWInstall pv solar system with (16 ) photovoltaic panels on residential rooftop - 6.48 kw dc see pv…	$10,000
Jun 3, 2026	Solar (×2, same day), 6.48 kW	$10,000 each
Jun 3, 2026	SolarPv solar master plan for tract 32606 - pv solar system roof mounted on each building of (6)…	not stated
Jan 26, 2024	Solar, 3.200 kWInstall pv system on residential roof: 8 panels & 3.200kw solar	$50,000
Jan 26, 2024	Solar, 3.0 kWInstall new pv system on duplex roof: 3.0kw & (8) panels solar	$7,000
Apr 26, 2023	Panel upgradeUpgrade electrical service to 200 amps service upgrade	$1,000

What to ask before you hire

About Cook Development Group Inc

Ask for their license number and check it with the state.
Ask what the warranty covers and for how long, in writing.
Search their name on the Better Business Bureau site, and read their reviews.

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?

More solar installers

See all 161 solar installers in Riverside, ranked by jobs

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