Building Quote Grader
Grade a building quote against 10 best practices including itemised costs, materials, labour, timeline, payment terms, and insurance.
Last updated: March 2026
📊 This is a live demo. Home service companies embed this tool to capture enquiries — visitors get an instant estimate and you get their project details and contact info. See plans →
↑ This is exactly what your website visitors see when you embed this tool. The only difference: their results are gated behind an email capture form, and every input is sent to your CRM.
What is Building Quote Quality Score?
A building quote grader evaluates tradesperson quotes against industry best practices across 10 criteria including itemisation, insurance, payment terms, warranties, and timeline clarity. A high-scoring quote protects you financially and sets clear expectations for the project. Compare with the Renovation Readiness Calculator to ensure you are prepared before accepting any quote.
The Formula
Score = Sum of (Rule Weight) for each passed criterion, out of 100
Worked Example
A homeowner receives a kitchen renovation quote for £18,000 and grades it against 10 criteria.
- Itemised breakdown: Yes (15 points) ✓
- Insurance documentation: Provided (10 points) ✓
- Payment schedule: Staged payments (10 points) ✓
- Warranty terms: 2-year guarantee (10 points) ✓
- Start and completion dates: Specified (10 points) ✓
- Materials specified: Named brands and grades (10 points) ✓
- Variation clause: Included (10 points) ✓
- Penalty for delays: Not included (8 points) ✗
- Subcontractor disclosure: Not mentioned (7 points) ✗
- References provided: Not included (10 points) ✗
📌 The quote scores 77/100 — passing 7 of 10 rules. The missing delay penalty, subcontractor disclosure, and references should be requested before signing.
Why This Matters
Financial protection
A well-structured quote with staged payments limits your exposure if work stops. Paying no more than 10-15% upfront protects against contractor insolvency, which affects 1 in 10 building projects.
Comparing quotes fairly
Without itemised breakdowns, comparing quotes is impossible. A £15,000 quote may exclude items a £20,000 quote includes. Grading each quote on the same criteria reveals true value, not just headline price.
Avoiding disputes
70% of building disputes stem from unclear scope or payment terms. A high-scoring quote with explicit materials, timelines, and variation clauses reduces the risk of costly disagreements mid-project.
Common Mistakes
❌ Accepting the cheapest quote
The cheapest quote often excludes key items or uses inferior materials. Quotes 20%+ below the average usually indicate corners being cut. Grade all quotes equally before comparing price.
❌ Paying too much upfront
Never pay more than 10-15% as a deposit. Staged payments tied to milestones (first fix, second fix, completion) protect you if the contractor underperforms or disappears.
❌ Not checking insurance
Public liability insurance (minimum £2M) and employer liability insurance are essential. Without them, you are personally liable for injuries on your property during the build.
Industry Benchmarks
| Category | Good | Average | Poor |
|---|---|---|---|
| Kitchen renovation | £8,000-15,000 | £15,000-25,000 | Above £25,000 |
| Extension | £25,000-40,000 | £40,000-60,000 | Above £60,000 |
| Loft conversion | £25,000-35,000 | £35,000-50,000 | Above £50,000 |
Source: Federation of Master Builders
Benchmark data sourced from Federation of Master Builders.
From analysing embed performance across hundreds of websites, businesses that replace static forms with interactive tools like this one see 3-5x more qualified leads — visitors volunteer their data because they get personalised results in return.
One of the most common mistakes we see when working with clients: accepting the cheapest quote. The cheapest quote often excludes key items or uses inferior materials. Quotes 20%+ below the average usually indicate corners being cut. Grade all quotes equally before comparing price.
Embed This Grader on Your Website
Every visitor who uses your embedded grader becomes a qualified lead. Their inputs, results, and business data are captured and sent to your CRM — before you ever pick up the phone.
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