Historical estimate comparison

A roof estimate of about £19,000 against an £18,000 benchmark

A renovation specialist compared Quotify’s base estimate for a proposed roof package with their previous pricing during a supported product test.

Renovation · proposed roofing packageEvidence from 16 June 2026For: Renovation contractors calibrating a known roof package
Illustrative timber roof assembly and architectural roof section with measuring tools
AI-generated editorial illustration. Not a photograph of the customer’s project.
≈£19kQuotify base estimate discussed
£18kcustomer’s previous price
≈5.6%higher than that benchmark

The task, the review and the action

The task

Compare a proposed roof package with a previous £18,000 price during a supported product test.

The review

The discussion separated an approximate £19,000 Quotify base cost from adjustable margin and contingency.

The action

The figures provided a starting point for further review and training. Line-by-line scope and tax reconciliation was not available for this story.

The starting point

The customer wanted to turn renovation drawings into an estimate they could assess against their own pricing experience. The session also exposed file-handling errors, so the first task was to work through the inputs with support.

A familiar roof package offered a concrete comparison: the customer had previously priced it at £18,000.

How Quotify was used

Quotify processed the proposed roofing information during the demonstration. The discussion separated the approximate £19,000 base cost from adjustable margin and contingency settings.

The customer was asked whether the base cost was in the right region. They confirmed that their previous price was £18,000. The session also covered workspace settings and plans for further training and benchmarking.

“Yes. I was going to say our price was 18.”

Renovation specialist · responding to the £19,000 base-cost question, 16 June 2026

What came out of the review

The approximate £19,000 base estimate was £1,000 above the customer’s £18,000 comparator. Using £18,000 as the denominator, that is a difference of about 5.6%.

The comparison gave the customer a useful starting point for reviewing pricing settings and trying further project information.

About this result

A supported test on one roof package

This supported test compared Quotify’s approximate base estimate with the customer’s previous price. Original reports were not available to reconcile every scope item, margin allowance or tax assumption. The session required input support and further training was planned.

What another builder can take from it

Compare equivalent pricing bases. Check whether each number includes margin, contingency, VAT and the same scope before drawing conclusions from a small difference.

A product example you can inspect

See the scope and pricing detail

Academy product example showing scope basis, quantity source, labour and materials in line details
Product example from the Academy, showing a line’s scope, labour, materials and review questions. This is a training example, separate from the customer’s project and results.
Open the Academy explanation ↗

Try this review on your own project

  1. Choose the same roof components, specification and quantities in both estimates.
  2. Check whether each total contains margin, contingency and VAT before calculating the difference.
  3. Compare high-value materials using compatible products, pack coverage and current supplier confirmation.

Your next step

Calibrate one package you understand

Your first complete project is free. Review a known job on the same scope and commercial basis before using the comparison.

Compare my project