New-build snagging checklist: room by room
A practical room-by-room checklist for snagging a new-build home in the UK, what paperwork to ask for, and how to report what you find.
· 4 min read · Powered By Thistle
A new home should be finished, but few are perfect. Snagging means walking through it before you move in, recording every defect and unfinished job, and giving the developer the chance to put them right. Here's a room-by-room checklist you can print or follow on your phone.
Before you start
- Go in daylight. Natural light shows paint finish, scratches and uneven surfaces far better than lamps.
- Take a torch, a tape measure, a phone charger or socket tester, a small spirit level and a pencil.
- Take a friend. A second pair of eyes, and someone to hold the end of the tape.
- Photograph as you go. Each problem needs a close photo and a wider one showing where it is.
- Note the room and wall for every item, so the builder can find it without asking.
- Don't be afraid to be thorough. Developers expect a list.
Outside
- Roof: missing, cracked or slipped tiles, and flashing around the chimney
- Gutters and downpipes: fixed firmly, sloping to the outlet, no drips at the joints
- Brickwork: even pointing, no cracks or loose bricks, no mortar splashes
- Windows and doors from outside: frames sealed, no gaps or damage
- Driveway, paths and patio: level, no pooling water, drained away from the house
- Drains and manholes: covers fitted, nothing blocked
- Fencing, gates and boundaries: match the plans and close properly
- Garden: levelled and finished as promised
The front door and hall
- Front door opens, closes and locks smoothly, and the letterbox, handles and spyhole work
- Hinges, locks and keys: the right number of keys, all working
- Smoke alarms fitted and working
- Floor level and no loose boards or squeaks
- Paint: even, with no drips, patches or brush marks
- Light switches and sockets work, and the consumer unit is labelled
Kitchen
- Cupboard doors and drawers align, open and close properly
- Worktops: no chips or scratches, joints neat and sealed
- Tap: runs hot and cold, no drips, and the water drains away freely
- Appliances: switch on, and check you have the manuals
- Extractor fan works and vents outside
- Tiles and splashbacks: no cracks, even grout
- Sockets: all work, and are where the plan says
Bathrooms and en-suites
- Toilet flushes properly and refills, with no rocking or leaks
- Taps and shower: hot and cold work, decent pressure, no leaks under the sink or bath
- Silicone sealant neat, and no gaps around the bath, basin or shower tray
- Tiles level with even grout, none cracked or loose
- Extractor fan works, and the window or vent is clear
- Door closes and locks, and the floor drains away from the shower
- Mirrors and fittings fixed firmly
Bedrooms and living rooms
- Walls and ceilings: look along the surface in side-light for bumps, cracks and uneven plaster
- Paint finish even, no stains or marks
- Skirting boards and architraves: tight to the wall, neatly joined
- Doors: open and close freely, latch and don't rub on the frame or the carpet
- Windows: open, close, lock and seal, and the glass is free of scratches
- Radiators: fixed firmly, warm up, valves work
- Sockets and switches: every one tested
- Floors: carpets fitted neatly, laminate or wood level with no gaps or creaks
- Fitted wardrobes: doors hang straight
Loft and utilities
- Loft: insulation laid evenly, hatch fits, and no daylight showing through the roof
- Boiler: working, with a certificate, and the pressure looks normal
- Consumer unit: circuits labelled, and a certificate provided
- Meters: note the readings for gas, electric and water on the day you move in
- Stopcock: you know where it is, and it turns
Safety checks
- Smoke and carbon monoxide alarms fitted and working
- Electrical and gas safety certificates provided
- Windows above ground floor: restrictors where needed
- Stair handrails firm, no loose banisters
- Any glass in doors or low windows looks suitable
The paperwork
Ask the developer or your solicitor for:
- the building control completion certificate
- the warranty documents (and what's covered, and for how long)
- gas and electrical safety certificates
- the energy performance certificate
- manuals and warranties for appliances
- a plan showing where services and stopcocks are
How to report what you find
- Put it in writing. An email with a clear list is better than a conversation.
- Group by room, with photos, so it's easy to work through.
- Number the items, so you can refer to each one.
- Date everything, and keep a copy.
- Follow up. Ask for a date by which each item will be fixed, and re-check them.
We've written more on how to write a snagging report that gets things fixed, and on the difference between a snag list and a punch list.
Snagging on a phone
SnagLine is built so you can walk the home, photograph each snag, mark it up, pin it on the floor plan and send a PDF report. It's aimed at professionals as well as buyers. See the page for landlords and inspectors.
This is general guidance, not legal advice. Check your contract and warranty for what applies to your home.
Questions people ask
- When should I snag a new-build home?
- Ideally just before legal completion, so the developer can fix things before you move in, and again in the first weeks after you move in, when problems with heating, plumbing and drainage show up.
- How long does snagging take?
- A thorough check of an average house usually takes a few hours. Taking your time and making a written list is better than rushing.
- Should I hire a professional snagger?
- It's your choice. A professional brings experience and tools, and usually produces a formal report. Many buyers do a careful check themselves first. Either way, put your findings to the developer in writing.
- What paperwork should I ask for?
- Usually the building control completion certificate, the warranty documents, gas and electrical safety certificates, the energy performance certificate and the appliance manuals. Ask your solicitor or the developer what applies to your home.
- How long do I have to report defects?
- It varies by developer and warranty, and a defects period of one to two years is common. Check your warranty paperwork and report problems as soon as you find them.
More from the notebook
- 23 October 2026Guide
How to write a snagging report that gets things fixed
What to put on the first page, how to describe each snag, how to order the report, and what to do when the work is done.
- 23 October 2026Guide
Snag list or punch list? What's the difference?
Snag list, snagging list, punch list and defects list all mean much the same thing. Here's where each term is used, and what a good list contains.