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Manufacturers regularly discontinue window product lines, change cladding colors, update sash profiles, or restructure their dealer networks, and a homeowner who purchased windows a decade or more ago may find that the exact product is no longer available when a replacement is needed after storm damage. This is a common and largely unavoidable feature of the building products industry, where manufacturers periodically refresh their offerings, and it creates a genuine technical challenge when only some windows on a home are damaged while others of the same original product remain intact. Consolidation within the window manufacturing industry has added another layer to this problem, since a brand name on an original window may now belong to a different parent company than the one that originally produced it, sometimes with different manufacturing standards and tooling than the original line used.
The first step in addressing a matching question is usually identification. Many manufacturers stamp or label their products with model numbers, series names, or date codes on the frame, sash edge, or spacer bar, and this information, when it can still be found and read, narrows down what was originally installed and what comparable current products might exist. Contacting the manufacturer directly, or a regional distributor familiar with that manufacturer’s older lines, is often the most reliable way to determine whether a discontinued line has a direct successor product with a similar profile, glass package, and finish. In some cases the original installing contractor or a local building supply retailer that carried the product may retain purchase records, which can supplement or substitute for a manufacturer label that has become worn or illegible over time.
When no reasonably close match exists, the practical options generally include sourcing a close approximation that may differ slightly in sightline width, hardware style, or color, or replacing additional undamaged units so that all windows on a given elevation or throughout the home present a uniform appearance. Which of these approaches is appropriate in a given case depends on factors such as how visually prominent the mismatch would be, whether the units in question are viewed together from a single vantage point, and what is reasonably achievable in the current market.
Reasonable people can examine the same mismatch and reach different conclusions about whether it is significant, which is part of why this issue appears in disputed claims. A useful, non-advocacy approach is to document the specific dimensional and visual differences between the available replacement and the original product, since concrete measurements and side by side comparison of finish and profile provide a more objective basis for evaluation than a general impression of mismatch.
An appraiser addressing a matching dispute focuses on this kind of physical, documented comparison and on established industry practice regarding reasonable replacement, in order to reach an independent figure for the scope of loss. Whether a policy requires matching of undamaged adjacent components, and to what extent, is governed by the specific policy language and is a matter for the parties to the claim, not for the appraiser to decide.
This article is general education about how the appraisal process commonly works. It is not legal advice, and specific procedures can vary by state and policy.
Russ Lis is a working property insurance appraiser and umpire based in Minnesota, serving clients nationwide. Contact Appraisal Resolution.