Quaerens
Property guidance - 6 min read

New Build Snagging Dispute: Evidence Checklist

A practical evidence checklist for new build defects, snagging disputes, developer repairs and warranty complaints.

Quick summary: A practical evidence checklist for new build defects, snagging disputes, developer repairs and warranty complaints.

Keep the original promise and purchase documents

Save the reservation form, sale particulars, contract pack, completion documents, plans, specification sheets and any upgrade agreements. These show what was promised before completion.

Build a dated snagging record

List each defect with the room, date noticed, photos, video if useful and any impact on use of the home. A clear timeline helps separate minor snagging from repeated or unresolved issues.

Track developer and warranty replies

Keep emails, portal messages, inspection notes, appointment records, missed visits and written repair promises. Screenshots help where a developer portal does not export messages cleanly.

Separate urgent defects from cosmetic issues

Water ingress, electrical concerns, heating failures, drainage problems and safety issues should be marked clearly in the evidence pack so the seriousness is easy to understand.

Evidence checklist

  • Reservation agreement, contract and completion paperwork
  • Sales brochure, plans, specification sheets and upgrade invoices
  • Dated photos and videos of each snag or defect
  • Snagging survey, inspection notes or contractor reports
  • Developer emails, portal messages and repair promises
  • Warranty provider correspondence and complaint replies
Important: This guidance is for document organisation and complaint preparation. Outcomes depend on the documents, timing, evidence and organisation involved.

Common questions

Should I get a snagging survey?

A professional snagging survey can help where defects are numerous, technical or disputed. Keep the full report and any developer response to it.

What if the developer says the issue is wear and tear?

Keep move-in dates, early photos, inspection notes and any first complaint messages showing when the issue was reported.

Should I keep repair appointment records?

Yes. Missed appointments, repeat visits and incomplete repairs can all help show the history of the complaint.

Quaerens Consumer Rights Knowledge CentreLast reviewed: 19 August 2026Jurisdiction: United Kingdom; warranty terms and jurisdiction vary

Practical answer and next steps

Short answer: Notify defects promptly and distinguish snagging, structural defects and warranty exclusions. A dated schedule with photographs and access records is stronger than a general complaint.

Key evidence

  • Reservation, contract and specification
  • Dated snagging schedule and expert report
  • Builder repair appointments and outcomes
  • Warranty certificate and claim correspondence

First steps

  1. Save the original documents and dated screenshots.
  2. Build one chronology of events, payments and replies.
  3. State the specific correction, refund or remedy requested.

If the complaint is rejected or ignored

Complain to the builder, then use the warranty provider’s resolution or claims route. NHBC describes builder responsibility in the first two years and specified cover in later years, subject to its policy.

Official sources

This is general consumer information, not legal or financial advice. Rights and deadlines depend on the facts, contract, location and current rules.