Building better spaces across Hertfordshire
4DMC provides high-quality residential construction and renovation services, helping homeowners improve, extend and transform their properties.
From home extensions and loft conversions to full renovations and structural alterations, we manage projects carefully from start to finish, with a focus on quality workmanship, clear communication and a well-finished result.
Our services include:
Home Extensions · Loft Conversions · Renovations · Structural Alterations · General Building Works
Our new website is currently under construction — but we’re still here and taking on new projects.
Thinking about a project? Get in touch to discuss what you have in mind.
Thank you for your patience—we'll be back soon.
