If you've opened a letter from your homeowners insurance carrier that mentions your roof, you're not alone. Over the last two underwriting cycles, carriers writing policies in California have rebuilt their renewal process around aerial imagery. A plane or satellite photographs your roof, software scores it, and anything that reads as moss, algae streaking, lichen, debris or overhanging branches can trigger a conditional renewal or a non-renewal notice.
Homeowners in San Francisco, Fairfield and Fresno have made the news for exactly this. Some of those roofs were fine. Many simply needed to be cleaned and documented.
Start by reading which of 3 letter types you got
Letters generally fall into three types:
- Conditional renewal. The carrier will renew if you correct the listed items by a date, usually 30 to 75 days out. This is the most common and the easiest to resolve.
- Non-renewal with a remediation path. The policy will lapse, but the letter says a corrected condition may be reconsidered. Treat this like a conditional renewal with a hard deadline.
- Non-renewal, no path offered. You'll need to appeal with evidence and, in parallel, shop for a new policy. United Policyholders and the California Department of Insurance both handle complaints about aerial-image non-renewals, and state lawmakers have been moving to give homeowners a right to request an in-person inspection.
What the carrier actually wants back
Underwriters are looking for proof of corrective action, not a promise. The package that works is:
- Dated before photos of the roof, including an overhead or high-angle view if possible, since that's what their inspector pulled.
- Dated after photos from the same vantage points.
- A short statement on company letterhead describing the work performed, the method used (soft wash, not pressure), the date, and the address.
- A copy of the contractor's certificate of insurance.
- If branches were cited, photos showing the trimmed clearance.
We assemble this package for every insurance-required roof cleaning we do. Most homeowners forward it to their agent the same day.
Why the method matters to the insurer
Shingle manufacturers such as GAF and the Asphalt Roofing Manufacturers Association only approve low-pressure, detergent-based cleaning. If you send back photos of a pressure-washed roof, you can end up with a worse outcome: a carrier that now questions warranty compliance on top of the original citation. A soft wash leaves the granules in place and keeps the growth from returning for years.
Don't wait on the deadline
Letters give a window, and finding replacement coverage in California takes time. Call as soon as you get the letter. We'll schedule within days, clean the roof, and get the documentation to you so you can respond well before the date.
Fox Roof Cleaning wrote 2 related guides
Fox Roof Cleaning also explains Soft washing vs. pressure washing a roof: why manufacturers only approve one and How often should a Peninsula roof be cleaned? Fog, redwoods and the coast change the answer.
See all 6 Fox roof cleaning services or insurance-required roof cleaning.
Published by Fox Roof Cleaning, Millbrae, CA.