New Build Defects – Spot Problems Early and Get Them Fixed

If you’ve just moved into a brand‑new house, you might expect everything to be perfect. In reality, new builds can have hidden issues – from cracked plaster to faulty wiring. Catching these problems early saves you money, stress, and future headaches.

Typical New Build Defects to Watch For

Even though the builder has just finished the job, some defects slip through the cracks. Here are the most common ones you’ll see in UK new builds:

1. Cracks in walls or ceilings – Small hairline cracks are normal, but wider splits up to a few millimetres can signal movement in the foundation or poor plaster work.

2. Uneven floors – Sloping or bouncy floors often point to problems with the sub‑floor or concrete slab. Use a spirit level to check for wobble.

3. Poor joinery – Doors that stick, cabinets that don’t close, or windows that don’t seal correctly are usually cheap‑grade fittings or rushed installation.

4. Damp and condensation – Musty smells, peeling paint, or water marks on walls mean the ventilation or damp proof membrane wasn’t installed right.

5. Electrical quirks – Flickering lights, sockets that don’t work, or breakers that trip often show shoddy wiring – a serious safety risk.

What to Do When You Find a Defect

First, don’t panic. Most builders are required to fix defects that appear within the warranty period (usually 10 years for structural issues). Follow these steps:

Document the problem – Take clear photos, note dates, and write a brief description of what you’ve noticed.

Check your contract and warranty – Look for the ‘snag list’ clause or the builder’s guarantee terms. This tells you what’s covered and how long you have to report.

Notify the builder in writing – Send a polite but firm email or letter outlining the defect, attaching your photos, and asking for a remedy. Keep a copy for yourself.

Allow reasonable time for a response – Most builders will arrange a site visit within a few weeks. If they ignore you, you can raise the issue with the National House Building Council (NHBC) or your local trading standards office.

Consider independent advice – If the defect is serious (e.g., structural cracks or electrical hazards), hire a qualified surveyor or electrician to assess the risk and provide a report. This strengthens your case if you need to involve a mediator or go to court.

Lastly, keep a tidy snag list. A well‑organized list makes it easier for the builder to schedule repairs and for you to track progress. Update it as each issue is resolved and request a final sign‑off before the warranty expires.

New build defects are frustrating, but they’re manageable when you know what to look for and how to act. By staying proactive, you protect your investment and ensure your home lives up to its promise of modern comfort.