Founded in 1983, H Carolan Construction has become a trusted name in the Harrow construction industry, known for exceptional craftsmanship, reliability, and a client-centered approach. From humble beginnings, our company has grown steadily, building a reputation for delivering high-quality projects that reflect each client’s vision. Our work spans from custom home extensions and loft conversions to complex commercial builds and infrastructure, all guided by a commitment to excellence and attention to detail.

Our experienced team of builders, architects, and skilled tradespeople is dedicated to delivering tailored solutions, whether it’s a residential renovation or a full-scale new build. We believe in open communication, transparency, and innovation, integrating sustainable practices and the latest technologies to ensure every project not only meets but exceeds expectations. At H Carolan Construction, we don’t just build structures; we build lasting relationships and spaces that inspire.