Before the Covers Go On: Fall Is the Right Time to Revisit Collector Values

Every fall, the same conversation happens across your book. Clients are booking winter storage, swapping summer tires for a battery tender, and thinking about how to tuck their collector vehicle away for the season. It's a natural moment of contact - and it's the single best opening you have all year for the conversation that matters most: is the value on the policy still right?

Once a car goes under a cover for five or six months, nobody revisits the number on the declaration page until spring. Whatever Guaranteed Value™ is on file when the doors close is the value that stands through the entire off-season. If that figure is out of date, the client is heading into winter underinsured - and winter is exactly when a car sitting idle is exposed to fire, theft, water damage, or a collapsed roof.

So while you're already reaching out about storage, take the extra two minutes to look at the value.

Why the Number Matters in Storage

A Guaranteed Value policy through Hagerty protects every cent of the vehicle's insured value, so in a total loss your client is paid that full value, less any deductible.* The value is agreed at policy issuance - which means if that number is stale, the shortfall is the client's problem, not the market's.

A stored car doesn't rack up KMs, but it doesn't stop appreciating either. With values on some vehicles up nearly 30% in the last year alone, a policy written two or three seasons ago can carry a significant gap between the Guaranteed Value on file and what the car would actually cost to replace. That gap sits unaddressed for the entire time the car is parked. (For the fuller case on why regular valuation checks matter, see Vehicle Valuation.)

This is also the moment to catch any vehicle that should be on Guaranteed Value (agreed value) but is still riding on standard ACV or Stated Value. Storage season is when the difference between those coverage types becomes most consequential.

A quick book scrub before storage season - filtering policies by year/make/model and comparing the insured value against the current collector car market - surfaces the gaps fast. Clients appreciate the proactive call, it folds neatly into the storage conversation you're already having, and it locks in the right coverage before the car disappears for the winter.

As you help clients arrange storage, check for vehicles still sitting on standard ACV or Stated Value - and quote them with Hagerty before the off-season starts.

Scrub your book, reach out before the covers go on, and make sure every collector vehicle you help protect goes into storage insured for what it's worth today.

Bonus Section:

• The Hagerty Hundred, a tracked index of 100 collectible vehicles updated regularly, shows broad appreciation across classic American muscle, personal luxury coupes, and vintage sports cars. The names driving the gains aren't obscure, they're Corvettes, Mustangs, Camaros, and Impalas, the kind of nameplates that show up in nearly every book of business.
• Make the call before the snow flies. Reaching out ahead of storage season isn't just good practice - it's the kind of timing that sets a trusted broker apart. A short call or email letting a client know their car has appreciated, and that you want the coverage right before it's parked for the winter, is a genuine value-add. It costs nothing, takes only minutes, and gives the client peace of mind through the months the car sits idle. Need help framing the conversation? Talking to Car Collectors has ready-made talking points and a Fact Finder.

This article is a seasonally focused update of These Collector Cars Are Surging in Value — Is Your Book Keeping Up? (25 June 2026). The market data and appreciation figures are drawn from that original piece; this version reframes the same guidance around fall storage season as the natural moment to revisit valuations with clients.