The scope problem in window quotes
Window quotes frequently omit flashing, air sealing, interior trim restoration, and disposal. Two quotes for the same number of windows can differ by thousands of dollars and appear to cover the same job. The difference is in the details.
What each line means
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Window unit cost
Why it matters: The cost of the window itself. Should specify brand, series, model, glass package, and any upgrades (grilles, between-the-glass blinds, etc.
Notes:
Installation method
Why it matters: Full-frame vs pocket install. This should be explicit.
Notes:
Flashing and air sealing
Why it matters: Should be a line item or explicitly included in the installation labor. If it is not mentioned, ask directly.
Notes:
Interior trim repair
Why it matters: Full-frame replacements disturb the interior casing. Repair or replacement of interior trim may be extra.
Notes:
Disposal of old windows
Why it matters: Hauling away the old windows. Often a separate line item or add-on.
Notes:
Permit
Why it matters: If required, the permit fee should appear in the quote..
Notes:
After you've received your quotes, visit zollera.com/compare for a free side-by-side AI analysis.
Comparing quotes
Match the installation method first. A full-frame quote and a pocket install quote for the same window are not comparable. Add any missing line items to each quote before comparing totals. The cheapest bid is frequently the one that left out flashing, air sealing, and trim restoration.
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