Window Quote Analyzer

Updated September 2026. Planning analysis, not an appraisal of your contractor. How we estimate costs

Five short steps. At the end you get your cost per opening, where it sits against published planning ranges, what your quote is missing and the questions to send your contractor. Nothing is stored.

Worth checking.

A quote is easier to read once it is pulled apart. Cost per opening tells you where it sits against published ranges. The specs on the paper tell you what job the contractor is actually pricing.

Enter the totals, the openings, the material, the installation method and the glass package. The tool does the arithmetic and flags what is missing.

Step 1 of 5 · The project

Start with the numbers

Straight off the quote. We only need two figures.

What is being installed

If the quote does not say, choose Not specified. That answer is useful in itself.

How it is being installed

This is the single biggest swing in a window quote.

What the quote includes

Tick only what is written on the quote. Anything unticked becomes a question to ask.

Your cost per opening

$1,536

–planning range for this specification–

Driving the price up

    Keeping it down

      Missing from the quote

        Ask before signing

          Compare this with a second quote What a quote should include

          How the comparison works

          The tool builds a planning range for the specification you entered, from the same published sources as our cost calculator: per-window installed ranges from Pella’s by-material guide and Thompson Creek’s regional pricing, a full-frame premium of $600 to $1,000 per window published by installers in three markets, which is market evidence rather than a national benchmark, and a triple-pane premium of 10% to 40% drawn from the spread of published 2026 estimates. It then divides your total by the number of openings and places that figure against the range.

          Sitting above the range is not evidence of overcharging. Sitting below it is not evidence of a bargain. Both are prompts to find out what is in the price.

          What this tool deliberately does not do

          • It does not judge your contractor, or label a quote good or bad.
          • It does not adjust for your local labor market, because we have not found regional data reliable enough to publish.
          • It does not price rot repair, oversized units, impact ratings or interior finishing beyond flagging them.
          • It stores nothing. Everything stays in your browser.

          Planning estimate, not a contractor quote. Your written quote from a local, licensed installer is the only real price for your home. See our methodology and disclaimer.