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Survey before re-roofing — what materials, what extras, what cost. Avoid surprises mid-project.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
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02 · Read the brief
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Costs, timelines, pitfalls and the right questions to ask before any roofer starts on pre-Roofing Survey.
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Free "survey" before quote
Some roofers offer free survey but recommend full re-roof regardless of need. Get independent survey.
Missed structural defects
Visual surveys don't detect rotten timbers. Full survey with scaffold reveals more.
No actionable recommendations
Cheap reports list defects without prioritising urgency or estimating cost.
Cherry-picking findings
Some surveys focus only on visible defects; misses high-cost hidden issues.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and a typical week-by-week schedule.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Visual ground-level surveyBasic, often free with quote
£50–£180
Drone survey + reportBest DIY value
£120–£350
Scaffold full inspectionIncludes scaffold cost
£250–£800
Full RICS Level 2 home survey (includes roof)Pre-purchase
£400–£900
Thermal imaging surveyInsulation and moisture defects
£200–£700
Heritage roof condition reportSPAB-accredited surveyor
£500–£2.5k
!
Quote spread is typically ± 18% — always get 3 quotes.
Timeline
Semi-detached full re-roof · week by week
Typical
4 phases · 3 wk
4 phases · 3 wk
W1
W2
W3
Scaffold erection
Strip + felt + battens
Tile + ridge + verge
Flashings + snags
!
Schedule slips on dependencies — pad each phase by 10–20% for real-world delays.
At a glance
Infographic · VideoThe Roofer briefing.
Infographic
Roofer quick-view
Video guide
Roofer explained
A roof survey before house purchase or major repair gives you the facts before signing or spending. Expect to pay £80–£500 for UK roof survey work depending on type. Spend a few hundred to avoid a £20,000+ surprise.
What Does the Work Involve?
Survey types: visual ground-level (from binoculars or ladder, basic inspection), drone survey (no scaffold needed, comprehensive photo/video), scaffold inspection (full access, can lift tiles), full survey with thermal imaging (detects insulation gaps and moisture issues). Surveyor produces report with photos, defects, recommendations and ballpark costs.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| Visual ground-level survey | 50 | 180 | Basic, often free with quote |
| Drone survey + report | 120 | 350 | Best DIY value |
| Scaffold full inspection | 250 | 800 | Includes scaffold cost |
| Full RICS Level 2 home survey (includes roof) | 400 | 900 | Pre-purchase |
| Thermal imaging survey | 200 | 700 | Insulation and moisture defects |
| Heritage roof condition report | 500 | 2,500 | SPAB-accredited surveyor |
How Long Does It Take?
Visual ground-level: 30–60 minutes. Drone survey: 1–2 hours. Scaffold inspection: half a day. Thermal imaging: 2–4 hours (best done early morning).
DIY or Professional?
Professional only — Working at Height regulations and qualified inspection. Drone surveys must be by CAA-licensed operator.
Choosing the Right Tradesperson
NFRC member, RICS qualified surveyor, or specialist drone surveyor. For heritage properties: SPAB-accredited surveyor. Get the report in writing with photos.
UK Regulations
Drone operations need CAA licence (commercial) and follow Air Navigation Order rules. Working at Height regulations.
Common Problems
- Free "survey" before quote: Some roofers offer free survey but recommend full re-roof regardless of need. Get independent survey.
- Missed structural defects: Visual surveys don't detect rotten timbers. Full survey with scaffold reveals more.
- No actionable recommendations: Cheap reports list defects without prioritising urgency or estimating cost.
- Cherry-picking findings: Some surveys focus only on visible defects; misses high-cost hidden issues.
Frequently Asked Questions
Do I need a roof survey?
If buying a property over 25 years old: yes, especially if RICS Level 2 survey flagged the roof. If planning major repair: get independent survey to validate the contractor's recommendation.
What's a drone roof survey?
CAA-licensed drone pilot captures detailed photos and video of every roof slope and detail. Identifies broken tiles, lifted ridges, failed flashings, moss, missing slates. Saves scaffold cost.
Best survey type for a Victorian terrace?
Scaffold inspection or drone — Victorian roofs often have hidden defects (perished lime mortar, slate "nail sickness", broken slates under repaint).
Will a survey tell me what to fix first?
Quality surveys prioritise findings — critical (immediate risk of damage), needed (1–3 year horizon), and monitor (no urgent action). Use this to plan repairs.
Can I use the survey to negotiate the property price?
Yes — defects flagged in writing give negotiating leverage. Roof replacement quotes from the survey provide concrete numbers.
Thermal imaging — when useful?
Detecting insulation gaps in the loft, moisture/leaks under tiles, and cold bridges. Best done early morning (temperature difference is sharpest).
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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