Whether it is less than two yrs since the household was completed, you should Speak to the builder or developer in the very first instance. You may see a typical summary of Buildmark cover here but you need to usually check the certificate and plan booklet specific to your home. We've established https://kingswoodhomes.uk.com/news/kingswood-homes-site-managers-win-double-nhbc-pride-in-the-job-quality-awards/