about us
At L Hewitt Construction, we specialise in delivering high-quality domestic extensions, new builds, and loft conversions across Hertfordshire & North London. With years of hands-on experience and a passion for exceptional workmanship, we’re committed to creating spaces that work beautifully for modern living — all while keeping your needs at the heart of every project.
Our Mission
Our mission is to provide reliable, skilled, and transparent construction services that turn your ideas into reality. We aim to make the building process smooth and stress-free, delivering every project on time, within budget, and to the highest standard.
Our Values
We value integrity, craftsmanship, and communication. Whether it’s a small extension or a full new build, we treat every home like our own — building lasting relationships with clients through honesty, attention to detail, and consistent quality.
"We’re so glad we chose L Hewitt Construction for our extension. Leigh and the team were friendly, reliable, and truly cared about getting everything just right. The finished space feels like it’s always been part of our home, and we couldn’t be happier with the result"
Emily Davis