Automotive Customizing Services, Nonfactory Basis Insurance

What is Automotive Customizing Services, Nonfactory Basis?

Automotive customizing services on a nonfactory basis involve modifications or upgrades made to a vehicle after it leaves the manufacturer. These changes can be made to both the interior and exterior of the vehicle and are typically done to enhance comfort, functionality, or appearance. Customizing can be performed by the vehicle owner or by specialty shops that focus on auto modification.

Who Needs This Coverage?

This coverage is important for individuals or businesses who invest in aftermarket modifications not covered by standard auto insurance. Common customers include:

  • Van and RV owners adding sleeping or kitchen facilities
  • Contractors customizing work vans with built-in tools or shelving
  • Auto enthusiasts enhancing performance or aesthetics
  • Rideshare or delivery drivers upgrading interiors for passenger comfort

What It Typically Covers

Depending on the policy, coverage for nonfactory customizing services may include:

  • Interior upgrades like custom carpeting, insulation, entertainment systems, or built-in appliances
  • Exterior enhancements such as custom paint jobs, decals, raised roofs, or aftermarket lighting
  • Specialized equipment permanently installed in the vehicle

This coverage helps protect the added value of these modifications in case of damage, theft, or loss.

Common Exclusions and Limitations

Most standard personal and commercial auto insurance policies do not automatically cover nonfactory customizations. Unless specifically added through an endorsement or separate policy, coverage may exclude:

  • Removable or non-permanent equipment
  • Customizations not disclosed to the insurer
  • Wear and tear or mechanical breakdowns

Always check your policy details to understand what is and isn't covered.

Factors That Influence Cost

The cost of coverage for customized vehicles depends on several factors, including:

  • Type and extent of modifications
  • Vehicle make, model, and age
  • Installation quality and whether modifications are permanent
  • Location and how the vehicle is used (personal, commercial, etc.)

Proof of Insurance and Compliance

Some states or commercial applications may require proof of insurance that includes any aftermarket modifications. Proper documentation, including receipts and installation records, can help support your coverage in the event of a claim. Be sure to disclose all customizations to your insurer when applying for or updating a policy.

How to Get a Quote

If you've made or plan to make custom upgrades to your vehicle, make sure your insurance reflects those changes. Get a quote today to explore your coverage options.

Frequently Asked Questions

Are custom parts like rims and spoilers covered by standard auto insurance?

No, most standard auto policies do not cover aftermarket parts unless you add specific coverage for them.

Can I insure a van I converted into a camper?

Yes, but you'll likely need to add specialized coverage or a policy endorsement to insure the custom features.

Do I need to tell my insurer about modifications?

Yes, it’s important to disclose all customizations to ensure accurate coverage and avoid claim issues.

Will custom paint or decals be covered?

Only if your policy includes coverage for cosmetic modifications. Check with your insurer for details.

Does commercial auto insurance cover work-related modifications?

Not always. You may need additional coverage for built-in tools or shelving installed in work vehicles.

Still have questions? Talk to a local insurance expert.

Partners, Programs & Market Access


We maintain relationships with nationally recognized and specialty-focused insurance providers that actively underwrite this class of business. Our network includes both admitted and non-admitted markets, allowing us to match risks—from straightforward accounts to more complex or hard-to-place exposures—with appropriate underwriting partners.


Program availability, coverage terms, and underwriting appetite can vary based on operations, location, and loss history, so access to multiple markets is key to securing the right fit. This approach helps ensure broader coverage options and more competitive placement across a range of risk profiles.



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