Real estate exposure

Point-of-Sale Code Compliance: Smoke Alarms, Water Heaters, CO Detectors

California law requires sellers to address three specific safety items before a residential sale closes. None of them create direct liability for the contractor who installed or serviced the equipment — but understanding the standard matters for anyone doing this work.

Smoke alarms: Health & Safety Code §13113.8

California sellers must address smoke alarm compliance at the point of sale under Health & Safety Code §13113.8. This is squarely a seller obligation. If a violation exists, the buyer’s exclusive remedy is actual damages capped at $100 — the buyer cannot use a smoke alarm violation to invalidate the transfer itself. The statute also carves out real estate licensees specifically: a licensee has no errors-and-omissions liability here and no duty to monitor compliance.

Water heater bracing: Health & Safety Code §19211

Water heaters must be braced, anchored, or strapped to resist falling during an earthquake, and Health & Safety Code §19211 requires the seller to certify compliance to the buyer in writing at the point of sale — unlike the other two items on this page, this one requires an affirmative written certification, not just compliance with a standard.

Carbon monoxide detectors: Health & Safety Code §17926

Health & Safety Code §17926 requires an owner of a qualifying dwelling unit to install an approved carbon monoxide device — the obligation is framed generally, not specifically tied to the point of sale the way §13113.8 is. There’s no requirement that a seller deliver a written certification of compliance to the buyer, unlike the water heater rule. Noncompliance is an infraction punishable by a fine of up to $200 per offense, but only after the owner receives a 30-day notice to correct. Separately, and specifically relevant to a real estate transaction: no transfer of title is invalidated for noncompliance, and the exclusive remedy is actual damages capped at $100, exclusive of court costs and attorney’s fees — the same $100 cap structure as the smoke alarm statute, even though the underlying obligation is framed differently.

Side-by-side comparison

Smoke Alarms (§13113.8)

Water Heater Bracing (§19211)

CO Detectors (§17926)

Obligation holder

Seller, at point of sale

Seller, at point of sale

Owner, generally (not point-of-sale-specific)

Written certification to buyer required?

No

Yes — seller certifies in writing

No

Buyer's remedy for violation

Actual damages, capped at $100

Not separately capped by §19211 itself

Actual damages, capped at $100

Can noncompliance invalidate the sale?

No

Not addressed by a comparable cap

No

Real estate licensee carve-out?

Yes — no E&O liability, no duty to monitor

Not addressed the same way

No comparable carve-out

Why this matters to a contractor anyway

None of these three statutes creates a direct liability pathway from a buyer to the contractor who installed or serviced the equipment — the statutory obligations and remedies run to the seller (or, for carbon monoxide devices, the owner generally). But a contractor doing this work should still care about the standard for two practical reasons. First, work that doesn’t meet code can still feed into a broader concealment or negligence claim under the doctrines covered elsewhere in this pillar, if a contractor knew work was non-compliant and it wasn’t corrected or disclosed. Second, sellers and their agents routinely rely on a contractor’s representation that this work was done correctly — getting it right the first time avoids becoming part of a dispute that otherwise wouldn’t involve the contractor at all.

Before you ask

Questions contractors ask first.

Can a buyer sue a contractor over a smoke alarm violation found after closing?

Not directly under Health & Safety Code §13113.8 — that statute’s remedy runs to the seller, and it’s capped at $100 in actual damages regardless of who performed the underlying work.

Does a water heater need a written compliance certification to sell a home in California?

Yes. Health & Safety Code §19211 requires the seller to certify water heater bracing compliance to the buyer in writing at the point of sale — this is different from the smoke alarm and carbon monoxide rules, neither of which requires written certification.

Is a contractor liable if a home they worked on doesn't have a required carbon monoxide detector?

Not directly under Health & Safety Code §17926, which imposes the installation obligation on the property owner and caps the buyer’s remedy for noncompliance at $100 in actual damages. A contractor’s exposure, if any, would run through a separate theory — such as concealment of known non-compliant work — not through this statute itself.

Talk to an Attorney Today

Talk to an Attorney Today if compliance work you performed has become part of a broader dispute — or Request a Consultation to understand where this fits into your overall exposure.