Verified locally
Permits and roofing rules in Pomona
Roofing rules are local, and they are more local than most homeowners expect. Who issues the permit, whether the fire authority is the county or the city, whether the roof has to be Class A and what the permit costs are all decided city by city. This page is what we have been able to verify for Pomona, with the source for each of it.
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Nobody will call you about this request unless you say yes to a company by name.
Anything we could not read on an official source is absent from this page. That is deliberate: a wrong permit fee is worse to a homeowner than no permit fee.
The climate zone your roof is built to
Pomona is in IECC climate zone 3 and a dry one (the Building America map calls it Hot-Dry), on the Department of Energy county map. That single number is what the energy code is written against here, and it is the reason the same roof is specified differently two states away.
Zone 3 is warm enough that no ice-barrier is required at the eaves, so a quote carrying one is selling you something the code here does not ask for. That is not automatically wrong, but it should be a line you agreed to rather than one you discover.
Attic ventilation is the figure worth checking either way: the energy code works to 1 square foot of net free vent area per 150 square feet of attic floor, or 1 per 300 where the venting is balanced between intake low and exhaust high. Most roofs that fail early in any zone fail because the intake was blocked, not because the covering was cheap.
The statewide layer
These are not specific to Pomona, but they apply to it, and several of them are widely got wrong — including by contractors quoting from habit rather than from the current code.
The right to cancel
The standard cancellation window on a home improvement contract is three business days, five for a senior citizen. Where the contract is to repair or restore damage from a disaster or a declared state of emergency, it is seven business days.
That longer window exists because of what happens on a street after a storm. Nothing has to be signed at the door — and if something was, the clock above is why it is worth re-reading tonight rather than tomorrow.
Licensing, deposits and what has to be on the paperwork
Roofing sits under the C-39 classification at the Contractors State License Board. The small-job exemption that permits unlicensed work rose to $1,000 in January 2025, but it does not extend to work needing a permit, and a re-roof needs one. So the rule that matters is the simple one: a re-roof requires a licensed contractor, at any price.
The deposit is capped by statute. A home improvement contractor may not take a down payment of more than $1,000 or ten per cent of the contract, whichever is less, unless they have a blanket performance and payment bond on file with the board. Exceeding it is a misdemeanour, and in a declared disaster area the court is required to impose the maximum fine — which tells you how commonly it is attempted after a storm.
Every licensed contractor is required to put the licence number in all advertising, and in contracts, subcontracts and bids. An advertisement without one is itself a signal. The board's own register will confirm a number in under a minute, and it is worth the minute.
Fire classification: what is actually required, and where
The statewide floor is a Class C fire-retardant roof covering. That applies to a new roof, to any repair or replacement, and to any existing building where more than half the roof area is replaced within a year — which is every ordinary re-roof.
The highest classification, Class A, is pulled in by fire hazard severity zoning or wildland-urban interface designation, and by local ordinances that reach further. Over most of south Orange County the answer ends up being Class A — but it gets there through the zoning and the city, not through a blanket state rule, so it is a question to settle for your address.
As of 1 January 2026 the wildfire rules live in their own book: the California Wildland-Urban Interface Code, Title 24 Part 7, which consolidated what used to be Chapter 7A of the building code and section R337 of the residential code. A contractor still citing Chapter 7A is citing something that has been superseded.
How many layers can stay on
A new covering cannot go over the old one where two applications are already up there, where what is there is water-soaked or degraded past being a sound base, or where the existing covering is slate, clay, cement or asbestos-cement tile. Any of those means a strip to the deck.
Two layers is therefore the practical ceiling, and on an older house nobody knows how many are up there until somebody looks. That is the single most common reason a re-roof price changes after the work starts, and it is a fair reason to ask for the quote to state what happens if a third layer appears.
The local picture, and what kind of claim it is
What follows is derived rather than verified — reasoning from when the city was built and where it sits, not read off a code document.
We have not compiled a verified housing-era note for Pomona, so nothing is claimed here about the typical age or material of its roofs.
The waste side of a re-roof is worth asking about explicitly. How many layers are coming off, where the skip goes, whether the street needs a permit for it, and whether the disposal is inside the quoted price or added afterwards — these are the questions that make two similar-looking quotes turn out not to be similar.
Before you rely on any of this
Rules change, fee schedules are revised annually, and your particular roof may raise something none of this covers. Confirm anything that matters with your city’s building department before work starts — and a contractor who works here every week will already know most of it.
Sources
These are the pages the facts above came off. They are the authority; this page is a summary of them and can go out of date while they do not.
- California Building Standards Commission — 2025 Title 24, effective 1 January 2026
- California Energy Commission — 2025 Building Energy Efficiency Standards
- CAL FIRE / Office of the State Fire Marshal — Fire Hazard Severity Zone viewer
- CSLB — C-39 roofing classification
- Business & Professions Code 7159.5 — down payment limit
- Business & Professions Code 7030.5 — licence number in advertising
- Insurance Code 2051.5 — time to collect replacement cost
- 10 CCR 2695.7 — Fair Claims Settlement Practices Regulations
- CalRecycle — CALGreen construction and demolition diversion
Questions about permits and rules
Who pulls the permit, me or the contractor?
The contractor, normally, and it should be in the written quote that they will. An owner-builder permit exists in most places but it moves the liability for the work onto you, which is rarely what a homeowner actually wants.
Does a re-roof need a permit?
Effectively always for a replacement. Some cities exempt very small repairs by area. The point that matters to a homeowner is not the paperwork but the inspection attached to it, which is a free second opinion on work you cannot see once it is finished.
What is the inspection for?
To confirm that what went on the roof matches what the code requires, at the stage when it can still be seen. A contractor who treats the inspection as an obstacle is telling you something.
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Find out what it costs
No cost. We email you once when a provider near you can take it on.