Buying and Selling Property UK 2026 — The Complete Process Guide

New Build Snagging Guide UK — What to Check

Complete guide to new build snagging UK. What to check, when to snag, professional vs DIY, and how to get developer to fix defects.

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New builds often have defects. Here’s how to inspect thoroughly and get issues fixed.

What Is Snagging?

Definition

SnaggingMeaning
WhatIdentifying defects in new build
WhenBefore or shortly after completion
Who fixesDeveloper (under warranty)
TimescaleUsually 2-year defects period

Types of Defects

CategoryExamples
CosmeticPaint runs, scratches, marks
FunctionalDoors not closing, stiff windows
InstallationPoorly fitted kitchens, loose tiles
Building qualityUneven floors, poor plastering
StructuralCracks, water ingress (rare but serious)

When to Snag

Ideal Timeline

StageWhat to Do
Pre-completionRequest inspection when “ready”
Completion dayCheck before taking keys
First 7 daysThorough walkthrough
First 2 yearsReport defects (NHBC defects period)
Up to 10 yearsStructural issues (NHBC structural)

Before Completion

Why Pre-CompletionBenefit
More leverageCan delay completion
Developer fixes firstMove in to finished home
Harder to argueAfter you’ve accepted
Your rightUnder Consumer Code

After Completion

If Already Completed
Not too late2-year defects warranty
Report promptlyIn writing
Photographic evidenceEssential

DIY Snagging Checklist

Exterior

CheckIssues to Look For
BrickworkCracks, mortar gaps, staining
RoofMissing tiles, flashing
GuttersSecure, aligned, draining
WindowsScratches, seals, operation
DoorsAlignment, locks, seals
DrivewaySurface, edging, drainage
GardenLevels, drainage, fencing

Kitchen

CheckIssues to Look For
UnitsLevel, doors aligned, soft close
WorktopsStraight, sealed, no chips
DrawersSmooth operation
AppliancesWorking, correct models
SplashbackFixed, clean, no gaps
TapsFlow, drips, hot/cold correct
ExtractorWorking, vented

Bathroom

CheckIssues to Look For
Bath/showerScratches, seals, drainage
ToiletSecure, flushes, fills
SinkScratches, taps, drainage
TilesGrout, chips, loose
SiliconeNeat, no gaps
ExtractorWorking, vented
Hot waterWorking, correct temp

Each Room

CheckIssues to Look For
WallsCracks, bumps, paint finish
CeilingsCracks, uneven, paint
FloorsLevel, scratches, squeaks
SkirtingGaps, damage, paint
DoorsOperate, close, handles
WindowsOpen, close, locks, seals
Sockets/switchesWork, level, secure
RadiatorsHeat evenly, bleed, secure

Throughout Property

SystemCheck
HeatingAll radiators heat
Hot waterTo all taps
ElectricsAll sockets, lights work
PlumbingNo leaks, pressure OK
VentilationExtractors, trickle vents

Professional Snagging

What They Provide

ServiceDetail
Comprehensive inspection2-4 hours
Detailed reportWith photos
Building regs knowledgeWhat’s acceptable
Negotiation leverageProfessional findings
Typical findings100-200 snags

Costs

Property SizeTypical Cost
1-2 bed£300-400
3 bed£350-450
4-5 bed£400-600
Larger£500+

When Professional Worth It

Consider Professional If
High-value propertyMore to lose
Limited DIY knowledgeKnow building standards
Want leverageProfessional report carries weight
Time-poorThorough inspection takes hours
Peace of mindWorth the cost

Finding a Snagging Inspector

SourceNotes
RPSAResidential Property Surveyors Association
RICSChartered surveyors
Specialist companiesNew build focused
ReviewsCheck track record

Reporting Snags

How to Report

MethodBest Practice
In writingAlways
EmailCreates record
PhotosOf every defect
Numbered listTrack resolution
Date loggedFor timeline

What to Include

DetailExample
Location“Master bedroom, north wall”
Description“Crack in plaster, 30cm long”
Photo reference“See photo 14”
PriorityCosmetic/functional/urgent

Sample Format

Snag #LocationIssuePhotoPriority
1KitchenUnit door misalignedK01Medium
2En-suiteSilicone gap at bathB01Medium
3LoungeCrack above windowL01High

Getting Snags Fixed

Developer’s Process

StageTypical Timeline
Submit listDay 0
Acknowledgment1-2 days
Assess priority1-2 weeks
Schedule repairs2-4 weeks
Complete repairs4-8 weeks

If Developer Is Slow

Escalation StepAction
1Written chase with deadline
2Site manager escalation
3Regional manager complaint
4Head office complaint
5Warranty provider (NHBC)
6Consumer Code

Consumer Code for Home Builders

If Developer Signed Up
Dispute resolutionAvailable
Compensation possibleFor delays
BindingOn developer
CheckIf they’re members

Warranty Protection

NHBC (Most Common)

PeriodCoverage
Years 1-2Defects (builder fixes)
Years 3-10Structural only

Other Warranty Providers

ProviderSimilar Coverage
Premier GuaranteeAlternative
LABCLocal authority backed
CheckmateAnother alternative

Making Warranty Claims

After 2 YearsProcess
Structural issuesContact warranty provider
Not cosmeticMust be structural
EvidenceDocumentation essential
Time limitsReport promptly

Common New Build Issues

Most Frequent Defects

RankIssueTypical Locations
1Poor paint finishWalls, ceilings, woodwork
2Door/window issuesThroughout
3Sealant gapsBathrooms, kitchen
4Plaster cracksAbove windows/doors
5Unfinished itemsMultiple

More Serious Issues

IssueConcern
DampMay be construction moisture or fault
CracksSettlement vs structural
DrainageSerious if wrong
RoofExpensive to fix

Summary

Snagging Checklist

Before CompletionDone?
Request pre-completion inspection
Book professional (if using)
Prepare own checklist
Take camera/phone charged
Allow several hours

DIY Equipment

ItemUse
TorchDark corners, cupboards
Phone/cameraPhotos
ClipboardNotes
Spirit levelChecking levels
Step ladderHigh areas

Key Timelines

PeriodCoverage
Pre-completionBest leverage
First 2 yearsDefects warranty
Up to 10 yearsStructural warranty

If Problems

StepAction
DocumentEverything in writing
EscalateThrough developer
Use warrantyIf developer fails
Consumer CodeIf member

aliases:

  • /mortgages/buying-selling/new-build-snagging-guide-uk/

Your home may be repossessed if you do not keep up repayments on your mortgage. PocketWise provides information and guidance — we do not offer financial advice. Seek independent mortgage advice before making decisions about borrowing.

You Might Also Find Useful

Sources

  1. FCA — Mortgages
  2. MoneyHelper — Buying a home