
Use the same quantity
Check that each quote covers the same count and openings.
UNITED KINGDOM · GBP
Record the quantities and amounts you have received, then compare them over the same scope.
This worksheet only adds your figures. It does not inspect a property, diagnose a window or predict energy savings or performance.
Start a comparisonGeneric AI-generated illustration, not a real UK home or product.

YOUR QUOTED FIGURES
Estimated total = quoted amount per window × number of windows + installation + other known costs. Use the figures and units from your own written quotes.
Absolute difference between entered totals: £0.00
Blank amounts count as zero; window quantity must be a whole number of at least one. Unentered costs are excluded. This is not a market estimate, installer recommendation, building or safety assessment, or guarantee of insulation, compliance or energy performance. No data is stored or sent.
REVIEW THE WRITTEN SCOPE
Ask the quote provider to clarify the written scope. This page does not assess whether a proposed product or work is suitable.

A FAIR COMPARISON

Check that each quote covers the same count and openings.
Keep unconfirmed items on a question list rather than treating them as zero.
Record the quote date and version for your own reference.
Local en-GB prototype for arithmetic on user-entered quotes. It does not provide current rates, product recommendations, property assessments or energy savings estimates. Generic generated image origin and reuse details are in the media provenance record.