Mortgages & Property
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.
New builds often have defects. Here’s how to inspect thoroughly and get issues fixed.
What Is Snagging?
Definition
| Snagging |
Meaning |
| What |
Identifying defects in new build |
| When |
Before or shortly after completion |
| Who fixes |
Developer (under warranty) |
| Timescale |
Usually 2-year defects period |
Types of Defects
| Category |
Examples |
| Cosmetic |
Paint runs, scratches, marks |
| Functional |
Doors not closing, stiff windows |
| Installation |
Poorly fitted kitchens, loose tiles |
| Building quality |
Uneven floors, poor plastering |
| Structural |
Cracks, water ingress (rare but serious) |
When to Snag
Ideal Timeline
| Stage |
What to Do |
| Pre-completion |
Request inspection when “ready” |
| Completion day |
Check before taking keys |
| First 7 days |
Thorough walkthrough |
| First 2 years |
Report defects (NHBC defects period) |
| Up to 10 years |
Structural issues (NHBC structural) |
Before Completion
| Why Pre-Completion |
Benefit |
| More leverage |
Can delay completion |
| Developer fixes first |
Move in to finished home |
| Harder to argue |
After you’ve accepted |
| Your right |
Under Consumer Code |
After Completion
| If Already Completed |
|
| Not too late |
2-year defects warranty |
| Report promptly |
In writing |
| Photographic evidence |
Essential |
DIY Snagging Checklist
Exterior
| Check |
Issues to Look For |
| Brickwork |
Cracks, mortar gaps, staining |
| Roof |
Missing tiles, flashing |
| Gutters |
Secure, aligned, draining |
| Windows |
Scratches, seals, operation |
| Doors |
Alignment, locks, seals |
| Driveway |
Surface, edging, drainage |
| Garden |
Levels, drainage, fencing |
Kitchen
| Check |
Issues to Look For |
| Units |
Level, doors aligned, soft close |
| Worktops |
Straight, sealed, no chips |
| Drawers |
Smooth operation |
| Appliances |
Working, correct models |
| Splashback |
Fixed, clean, no gaps |
| Taps |
Flow, drips, hot/cold correct |
| Extractor |
Working, vented |
Bathroom
| Check |
Issues to Look For |
| Bath/shower |
Scratches, seals, drainage |
| Toilet |
Secure, flushes, fills |
| Sink |
Scratches, taps, drainage |
| Tiles |
Grout, chips, loose |
| Silicone |
Neat, no gaps |
| Extractor |
Working, vented |
| Hot water |
Working, correct temp |
Each Room
| Check |
Issues to Look For |
| Walls |
Cracks, bumps, paint finish |
| Ceilings |
Cracks, uneven, paint |
| Floors |
Level, scratches, squeaks |
| Skirting |
Gaps, damage, paint |
| Doors |
Operate, close, handles |
| Windows |
Open, close, locks, seals |
| Sockets/switches |
Work, level, secure |
| Radiators |
Heat evenly, bleed, secure |
Throughout Property
| System |
Check |
| Heating |
All radiators heat |
| Hot water |
To all taps |
| Electrics |
All sockets, lights work |
| Plumbing |
No leaks, pressure OK |
| Ventilation |
Extractors, trickle vents |
Professional Snagging
What They Provide
| Service |
Detail |
| Comprehensive inspection |
2-4 hours |
| Detailed report |
With photos |
| Building regs knowledge |
What’s acceptable |
| Negotiation leverage |
Professional findings |
| Typical findings |
100-200 snags |
Costs
| Property Size |
Typical 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 property |
More to lose |
| Limited DIY knowledge |
Know building standards |
| Want leverage |
Professional report carries weight |
| Time-poor |
Thorough inspection takes hours |
| Peace of mind |
Worth the cost |
Finding a Snagging Inspector
| Source |
Notes |
| RPSA |
Residential Property Surveyors Association |
| RICS |
Chartered surveyors |
| Specialist companies |
New build focused |
| Reviews |
Check track record |
Reporting Snags
How to Report
| Method |
Best Practice |
| In writing |
Always |
| Email |
Creates record |
| Photos |
Of every defect |
| Numbered list |
Track resolution |
| Date logged |
For timeline |
What to Include
| Detail |
Example |
| Location |
“Master bedroom, north wall” |
| Description |
“Crack in plaster, 30cm long” |
| Photo reference |
“See photo 14” |
| Priority |
Cosmetic/functional/urgent |
| Snag # |
Location |
Issue |
Photo |
Priority |
| 1 |
Kitchen |
Unit door misaligned |
K01 |
Medium |
| 2 |
En-suite |
Silicone gap at bath |
B01 |
Medium |
| 3 |
Lounge |
Crack above window |
L01 |
High |
Getting Snags Fixed
Developer’s Process
| Stage |
Typical Timeline |
| Submit list |
Day 0 |
| Acknowledgment |
1-2 days |
| Assess priority |
1-2 weeks |
| Schedule repairs |
2-4 weeks |
| Complete repairs |
4-8 weeks |
If Developer Is Slow
| Escalation Step |
Action |
| 1 |
Written chase with deadline |
| 2 |
Site manager escalation |
| 3 |
Regional manager complaint |
| 4 |
Head office complaint |
| 5 |
Warranty provider (NHBC) |
| 6 |
Consumer Code |
Consumer Code for Home Builders
| If Developer Signed Up |
|
| Dispute resolution |
Available |
| Compensation possible |
For delays |
| Binding |
On developer |
| Check |
If they’re members |
Warranty Protection
NHBC (Most Common)
| Period |
Coverage |
| Years 1-2 |
Defects (builder fixes) |
| Years 3-10 |
Structural only |
Other Warranty Providers
| Provider |
Similar Coverage |
| Premier Guarantee |
Alternative |
| LABC |
Local authority backed |
| Checkmate |
Another alternative |
Making Warranty Claims
| After 2 Years |
Process |
| Structural issues |
Contact warranty provider |
| Not cosmetic |
Must be structural |
| Evidence |
Documentation essential |
| Time limits |
Report promptly |
Common New Build Issues
Most Frequent Defects
| Rank |
Issue |
Typical Locations |
| 1 |
Poor paint finish |
Walls, ceilings, woodwork |
| 2 |
Door/window issues |
Throughout |
| 3 |
Sealant gaps |
Bathrooms, kitchen |
| 4 |
Plaster cracks |
Above windows/doors |
| 5 |
Unfinished items |
Multiple |
More Serious Issues
| Issue |
Concern |
| Damp |
May be construction moisture or fault |
| Cracks |
Settlement vs structural |
| Drainage |
Serious if wrong |
| Roof |
Expensive to fix |
Summary
Snagging Checklist
| Before Completion |
Done? |
| Request pre-completion inspection |
☐ |
| Book professional (if using) |
☐ |
| Prepare own checklist |
☐ |
| Take camera/phone charged |
☐ |
| Allow several hours |
☐ |
DIY Equipment
| Item |
Use |
| Torch |
Dark corners, cupboards |
| Phone/camera |
Photos |
| Clipboard |
Notes |
| Spirit level |
Checking levels |
| Step ladder |
High areas |
Key Timelines
| Period |
Coverage |
| Pre-completion |
Best leverage |
| First 2 years |
Defects warranty |
| Up to 10 years |
Structural warranty |
If Problems
| Step |
Action |
| Document |
Everything in writing |
| Escalate |
Through developer |
| Use warranty |
If developer fails |
| Consumer Code |
If member |
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