Simi Valley, CA · December 2020 – January 2021 · Southern California Edison / City of Simi Valley

Three scopes, one signature. The paperwork is where that goes wrong.

A Simi Valley project covering solar, roofing and a service panel upgrade, reviewed before signing by an engineer acting for the homeowner. This is what he asked for, and why each request was right.

Written by the Cali Energy project team · California contractor license 1032379 · Updated September 2026

Four things, and none of them are exotic. Write the roofing scope out in full rather than carrying it as a line item with a price. Separate solar, service panel and roofing so each can be accepted or disputed on its own. Name the materials down to what will be visible from the street. And require unconditional lien releases from every supplier and subcontractor, so that paying the contractor actually ends the homeowner's exposure. Cali Energy made all four changes on this Simi Valley project before anybody signed.

At a glance

Project scope

Solar, roofing and a service panel upgrade

Reviewed by

A licensed engineer acting for the homeowner

Change 1

Full roofing specification, not a line item

Change 2

Separate contract addenda for each scope

Change 3

Materials named, down to drip edge color and ridge shingles

Change 4

Unconditional lien releases from all suppliers and subcontractors

Contracts signed

29 December 2020

Utility / AHJ

Southern California Edison / City of Simi Valley

The story

Most residential solar contracts are signed the evening they are presented. This one was read first, by an engineer the family had asked to look at it, and the review took two days of back and forth before anybody signed anything. Cali Energy made every change he asked for, and every one of them was reasonable enough that they are worth listing.

The first was the roofing. A combined agreement of this kind normally carries the roof as a figure with the specification held separately, and he wanted the two in the same document: the price is committed, so the product should be too. A full specification went in — underlayment, shingle line and color, flashing, ventilation.

The second was separation. Solar, the service panel upgrade and the roofing had been folded into a single agreement with one total. He asked for addenda that described each scope on its own. The reason matters more than the format: when three trades sit inside one undifferentiated contract, a dispute about any one of them puts the whole agreement in play, and nobody can tell what was paid for what.

The third was the level of detail in the materials. Not just the shingle, but the drip edge color and whether matching ridge shingles were included. Those read as fussy until the roof is finished in a color that clashes and the contract does not say otherwise.

The fourth is the one worth carrying away. He asked for a clause requiring unconditional lien releases from all suppliers and subcontractors. In California a supplier or a subcontractor who has not been paid can record a mechanics lien against the property, and that remains true when the homeowner has paid the contractor in full. An unconditional release is the document that says a specific party has been paid and gives up that right. Requiring them as a condition of payment is the single most useful line a homeowner can add to a construction contract.

One more thing happened before the roofing payment was released. Before the roofing payment was released, the engineer reviewed the plan set and returned two comments: show the roof penetration locations on the site plan, and note the flexible conduit between the two roofs. Both were drawing corrections rather than design faults, and both made the set easier for the city and for whoever opens that roof in fifteen years.

The project ran from there without friction. Contracts signed on the twenty-ninth of December, roofing on the ninth of January, roofing final passed on the twelfth, solar permit on the second of February.

How it ran

Two days of contract review before signature, and no disputes afterwards. This timeline reflects this project.

What we did

• Rewrote the roofing scope as a full written specification rather than a price line (C-39).
• Split one combined agreement into separate addenda for solar, service and roofing.
• Named materials to the level of drip edge color and ridge shingles.
• Accepted a contract clause requiring unconditional lien releases from every supplier and subcontractor.
• Revised the plan set to show roof penetration locations and the flexible conduit run.
• Held each payment stage until the reviewer had signed off on the work in front of it.

System specifications

Is your project like this one?

• Your quote covers solar plus roofing plus electrical under one total.
• Your contract names a price for a new roof and not the roof.
• You want to know what protects you if a subcontractor is not paid.
• You are about to sign and would like to know what to read for.

Cali Energy in Simi Valley

Frequently asked questions

What should a solar contract say about roofing?

Everything you would expect a roofing contract to say: underlayment, shingle line and color, flashing, ventilation, and what happens to material found damaged once the old roof is off. A figure with no specification commits the price and leaves the product open, which is the wrong way round. Ask for the specification before signing rather than after.

Does Cali Energy accept contract changes from a Simi Valley homeowner's reviewer?

Yes, and on this Simi Valley project Cali Energy made every change the homeowner's engineer asked for: a full roofing specification, separate addenda for each scope, materials named in detail, and a lien release clause. Fifteen Simi Valley projects are written up on our projects page. Our license is CSLB #1032379.

What is an unconditional lien release and why ask for one?

It is a signed document in which a supplier or subcontractor confirms they have been paid and gives up the right to record a mechanics lien against the property. It matters because in California that right exists independently of whether the homeowner paid the contractor. Requiring releases as a condition of each payment closes that gap.

Why separate solar, roofing and electrical into different scopes?

So that each can be judged on its own. Three trades inside one undifferentiated total means a dispute about any of them unsettles the whole agreement, and nobody can say what portion of the money bought what. Separate scopes also make the staged payments legible, because each release is tied to work that is described somewhere.

What this would look like on your roof

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This timeline reflects this property and this permitting path. Updated September 2026.